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Zoran Solution DVD
Service Manual
TABLE OF CONTENTS
TABLE OF CONTENTS
1
Terminology and Abbreviations……………………………………………………….1-5
2 Safety Precautions ……………………………………………………………………...6-9
3
Electrical Performance Standards ……………………………………………………..10
4 DVD Box Block Diagram…………………………………………………………..……11
5
General Classtication of Symptoms………………………………………………...12-16
6
Software Update Method ………………………………………………………..…… 17
7
Repair of Power Board………………………………………………………….. … 18-22
8
Repair of Decoder Board …………………………………………………………...23-34
9
Repair of Key Board………………………………………………………..………
10
Package diagram
11
System decomposition 3-D diagram
12
Main point waveforms of Electronic components
35
…………………………………………………………...……. 36
………………………………………...…… 37
………………………….……38
Terminology & Abbreviations
Terminology & Abbreviations
AC-3
The former name of the Dolby Digital audio-coding system . AC-3 followed AC-1
and AC-2. Still used in some standards documents.
Angle
In DVD-video, a specific view of a scene, usually recorded from a certain camera
angle. Different angles can be chosen while viewing the scene.
CD
Short for compact disc, an optical disc storage format developed by Philips and Sony.
CD-DA Compact disc digital audio. The original music CD format, storing audio
information as digital PCM data. Defined by the Red Book standard.
CD+G Compact disc plus graphics. A variation of CD which embeds graphical data in with
the audio data, allowing video pictures to be displayed periodically as music is
played. Primarily used for karaoke.
CD-R An extension of the CD format allowing data to be recorded once on a disc by using
dye-sublimation technology. Defined by the Orange Book standard.
Channel A part of an audio track. Typically there is one channel allocated for each
loudspeaker.
Chapter In DVD-Video, a division of a title. Technically called a part of title (PTT).
Closed Caption Text captions for video which are not normally visible, as opposed to open
captions, which are a permanent part of the picture. In the United States, the official
NTSC Closed Caption standard requires that all TVs larger than 13 inches include
circuitry to decode and display caption information stored on line 21 of the video
signal. DVD-Video can provide closed caption data, but the subpicture format is
preferred for its versatility.
Component Video A video system containing three separate color component signals,
either red/green/blue (RGB) or chroma/color difference (YGbCr, YPbPr, YUV), in
analog or digital form. The MPEG-2 encoding system used by DVD is based on
color-difference component digital video. Very few televisions have component
video inputs.
Composite Video An analog video signal in which the luma and chroma components are
combined (by frequency multiplexing), along with sync and burst. Also called CVBS.
Most televisions and VCRs have composite video connectors, which are usually
colored yellow.
CD-i Compact disc interactive. An extension of the CD format designed around a set-top
computer that connects to a TV to provide interactive home entertainment, including
digital audio and video, video games, and software applications. Defined by the Green
Book standard. CD-i Assn.
1
Terminology & Abbreviations
Dolby Digital A perceptual coding system for audio, developed by Dolby Laboratories and
accepted as an international standard. Dolby Digital is the most common means of
encoding audio for DVD-Video and is the mandatory audio compression system for
525/60 (NTSC) discs.
Dolby Surround The standard for matrix encoding surround-sound channels in a stereo
signal by applying a set of defined mathematical functions when combining center and
surround channels with left and right channels. The center and surround channels can
then be extracted by a decoder such as a Dolby Pro Logic circuit which applies the
inverse of the mathematical functions. A Dolby Surround decoder extracts surround
channels, while a Dolby Pro Logic decoder uses tially independent of the recording or
transmission format. Both Dolby Digital
and MPEG audio compression systems are
1-1
compatible with Dolby Surround audio.
DTS Digital Theater Sound. A perceptual audio-coding system developed for theaters. A
competitor to Dolby Digital and an optional audio track format for DVD-Video.
DVCD Stands for Double Video CD -- pretty popular format in mainland China.
Format itself is nothing new really, its just a regular VideoCD overburned to include 90
to 99mins per CD, compared to regular 74mins per CD in standard VideoCD format.
DVD An acronym that officially stands for nothing, but is often expanded as Digital Video
Disc or Digital Versatile Disc. The audio/video/data
storage system based on 12-and
1-1
8-cm optical discs.
DVD+R DVD+Recordable defines a standard for recordable DVD drives and media defined
by the DVDRW Alliance. Often called "plus R", the format is write once (compared to
DVD+RW wich can be erased and rewritten). The single sided discs can hold
4,700,000,000 bytes (4.38 Gigabytes at 1024 bytes to the kilobyte) with double sided
discs holding twice as much. There are no dual layer single sided recordable discs. This
format competes with the DVD Forum DVD-R specification. DVDRhelp DVDR
information
JPEG Joint Photographic Experts Group. The international committee which created its
namesake standard for compressing still images.
Karaoke Literally empty orchestra. The social sensation from Japan where sufficiently
inebriated people embarrass themselves in public by singing along to a music track.
Karaoke was largely responsible for the success of laserdisc in Japan, thus supporting
it elsewhere.
Kodak Picture CD Kodak Picture CD is a CD that contains your pictures in JPEG
format(.jpg) along with software that lets you view, enhance, share, and print your
pictures from your computer. Some standalone DVD Players supports this format also,
but then only for viewing. This format will also work on DVD Players that supports
"JPEG file viewing" but you may lose some Kodak Picture CD specific features. Kodak
Picture CD.
Macrovision An antitaping process that modifies a signal so that it appears unchanged on
most televisions but is distorted and unwatchable when played back from a videotape
recording. Macrovision takes advantage of characteristics of AGC circuits and burst
decoder circuits in VCRs to interfere with the recording process.
2
Terminology & Abbreviations
MP3 MP3 is an acronym for MPEG-1 (or MPEG-2) Layer 3 audio encoding (it is not an
acronym for MPEG3). MP3 is a popular compression format used for audio files on
computers and portable devices.
The compression in MP3 works on the basis of a "psychoacoustic model" which
means that parts of the audio that human ears cannot detect are discarded by the
encoder. Although this is a LOSSY process, it can yield very high quality audio files
are relatively high compression rates. A typical MP3 file encoded at 128 kbit/s (12:1
compression) is near CD quality.
MP3 audio is increasingly being used in video production coupled with various
MPEG-4 video codecs like divx. The audio may be encoded with a constant or
variable bitrate.
Multiangle A DVD-Video program containing multiple angles allowing different views of a
scene to selected during playback.
Multilanguage A DVD-Video program containing sound tracks and subtitle tracks for more
than one language.
RGB Video information in the form of red, green, and blue tristimulus values. The
combination of three values representing the intensity of each of the three colors can
represent the entire range of visible light.
S/N
Signal-to-noise ratio. Also called SNR.
SACD Super Audio CD is the next generation of audio disc, offering full-range,
uncompressed digital multi-channel surround sound. SACD can also be backward
compatible using so called hybrid discs with an extra layer that allows them to be
played on conventional CD players but then only with ordinary CD quality. SACD can
be played on SACD Players, DVD Players with SACD support and if using hybrid
discs also CD Players. SACD is currently competing with DVD-Audio as the new
audio defacto standard. Philips SACD information.
Subtitle A textual representation of the spoken audio in a video program. Subtitles are often
used with foreign languages and do not serve the same purpose as captions for the
hearing impaired.
SVCD SVCD stands for 'Super VideoCD'. A SVCD is very similiar to a VCD, it has the
capacity to hold about 35-60 minutes on 74/80 min CDs of very good quality
full-motion MPEG-2 video along with up to 2 stereo audio tracks and also 4 selectable
subtitles. A SVCD can be played on many standalone DVD Players and of course on
all computers with a DVD-ROM or CD-ROM drive with the help of a software based
decoder / player. SVCDHelp.com.
S-video A video interface standard that carries separate luma and chroma signals, usually on
a four-pin mini-DIN connector. Also called Y/C. The quality of s-video is
significantly better than composite video since it does not require a comb filter to
separate the signals, but it’s not quite as good as component video. Most high-end
televisions have s-video inputs. S-video is often erroneously called S-VHS.
System menu
The main menu of a DVD-Video disc, from which titles are selected. Also
called the title selection menu or disc menu
3
Terminology & Abbreviations
Title
The largest unit of a DVD-Video disc (other than the entire volume or side). Usually
a movie, TV program, music album, or so on. A disc can hold up to 99 titles, which
can be selected from the disc menu.
VCD VCD stands for 'Video Compact Disc' and basically it is a CD that contains moving
pictures and sound. If you're familiar with regular audio/music CDs, then you will
know what a VCD looks like. A VCD has the capacity to hold up to 74/80 minutes on
650MB/700MB CDs respectively of full-motion video along with quality stereo sound.
VCDs use an encoding standard called MPEG-1 to store the video and audio. A VCD
can be played on almost all standalone DVD Players and of course on all computers
with a DVD-ROM or CD-ROM drive with the help of a software based decoder /
player. VCDHelp.com.
YUV In the general sense, any form of color-difference video signal containing one luma
and two chroma components. Technically, YUV is applicable only to the process of
encoding component video into composite video.
WMF Windows Media Format files are audio/video files encoded with the Windows Media
Encoder, providing high quality and media security for streaming and download-and-play
applications on PCs, set-top boxes, and portable devices. Windows Media Format comprises
Windows Media Audio and Video codecs, an optional integrated digital rights management
(DRM) system, and a file container. Microsoft WMF Information
CVD China Video Disk - a precursor to SVCD marketed since 1998. Resolutions are
352x480 NTSC, 352x576 PAL, 44.1khz audio (unlike 1/2 D1 DVD that is the same
resolution at 48khz audio). Not all players will play CVD (compatible players). CVD Guide
DivX DivX™ is a new format for digital video, much like MP3 is a format for digital
music. DivX™ is the brand name of a patent-pending video compression technology created
by DivXNetworks, Inc., (also known as Project Mayo). The DivX™ codec is based on the
MPEG-4 compression standard. This codec is so advanced that it can reduce an MPEG-2
video (the same format used for DVD or Pay-Per-View) to ten percent of its original size.
DivX.com.
DVD+RW DVD+RW is a ReWriteable media format of the DVD+R standard.
DVD-Audio DVD-Audio or sometimes called DVD-A is a separate format from DVD-Video.
1-3
It is a format specifically designed to provide the highest
possible audio fidelity capable on
DVD. DVD-Audio provides for audio in stereo and in multi-channel surround in a wide range
of specifications. In addition to audio, a DVD-Audio disk can contain a limited amount of
video, which can be used to display text, such as lyrics or notes. DVD-Audio can only be
played on DVD Players with DVD-Audio support (most DVD Players do not support this
format). DVD-Audio is currently competing with SACD as the new audio defacto standard.
DigitalAudioGuide DVD Audio FAQ
DVD-R DVD-Recordable defines a standard for recordable DVD drives and media defined
by the DVD Forum. Often called "minus R", the format is write once (compared to DVD-RW
wich can be erased and rewritten). The single sided discs can hold 4,700,000,000 bytes (4.38
Gigabytes at 1024 bytes to the kilobyte) with double sided discs holding twice as much. There
are no dual layer single sided recordable discs. This format competes with the DVD+R format.
DVDRhelp DVDR information
4
Terminology & Abbreviations
DVD-RAM A recordable format supported by the DVD Forum. It has superior recording
features but it is not compatible with most DVD-ROM drives or DVD Video players. It works
well when set up like a removable hard disk.
DVD-RW DVD-RW is a ReWriteable media format of the DVD-R standard.
DVD-Video DVD-Video is the video element of the DVD format. DVD Demystified
DVD-Video Features.
DVD±R A term used to cover both the DVD-R and DVD+R standards in one word.
HDCD High Definition Compatible Digital® (HDCD®) is a patented encode/decode
process for delivering the full richness and detail of the original microphone feed on Compact
Discs and DVD-Audio. HDCD has been used in the recording of more than 5,000 CD titles,
which include more than 250 Billboard Top 200 recordings and more than 175 GRAMMY®
nominations, and account for more than 300 million CDs sold.
HDCD-encoded CDs sound better because they are encoded with 20 bits of real musical
information, as compared with 16 bits for all other CDs. HDCD overcomes the limitation of
the 16-bit CD format by using a sophisticated system to encode the additional 4 bits onto the
CD while remaining completely compatible with the existing CD format. HDCD provides
more dynamic range, a more focused 3-D soundstage, and extremely natural vocal and
musical timbre. With HDCD, you get the body, depth, and emotion of the original
performance not a flat, digital imitation.
5
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, the products are strictly inspected to conform with the
recognized product safety and electrical codes of the countries in which they are to be sold.
However, in order to maintain such compliance, it is equally important to implement the
following pre-cautions when a set is being serviced.
·Precautions during Servicing
1. Locations requiring special caution are denoted by labels and inscriptions on the rear panel
and certain parts of the product. When performing service, be sure to read and comply with
these and other cautionary notices appearing in the operation and service manuals .
2. Parts identified by the
!
symbol in schematic diagram parts are critical for safety.
Replace only with specified part numbers.
Note : Parts in this category also include those specified to comply with laser emission
standards for Products using cathode ray tubes and those specified for compliance
with various regulations regarding spurious radiation.
3. Use Specified internal wiring. Note especially:
1) Double insulated wires
2)High voltage leads
4. Use specified insulating materials for hazardous live parts. Note especially:
1)Insulation Tape
2)PVC tubing
3)Spacers
4)Insulation sheets for transistor
5. Observe that wires do not contact heat producing
PARTS (heatsinks, oxide metal film resistors ,fusible resistors ,etc .)
6.Check that replaced wires do not contact sharp edged or pointed parts .
6
SAFETY PRECAUTIONS
7. 1)When a power cord has been replaced ,check that A mark is made on the cord ,under
strain ,near the aperture ,and the flexible cord is subjected 100times to a pull of 40N
for a duration of 1 second each .
2)During the test ,the cord shall not be displaced by more than 2mm
8.Also check areas surrounding repaired locations .
9. The internal wiring is secured so as not to approach the heating parts and high voltage parts
by its shape.So, these wires must be restored to its former state.
10. After updated the hazardous live part or accessible part, if the clearance or creepage
distance cann’t accord with the safe request, then need adopt reinforced insulation method
for ensure safety.
SAFETY CHECK AFTER SERVICING
Examine the area surrounding the repaired location for damage or deterioration. Observe that
screws ,parts and wires have been reterned to original positions .
Afterwards ,perform the following tests and confirm the specified values in order to verify
compliance wit atfety standards .
7
SAFETY PRECAUTIONS
·Insulation resistance test
confirm the specified insulation resistance or greater between power cord plug prongs and
externally exposed parts of the set (RF terminals ,antenna terminals ,video and audio input
and output terminals ,microphone jacks ,earphone jacks ,etc .)See table below.
·Dielectric strength test
Confirm specified dielectric strength or greater between power cord prongs and exposed
accessible parts of the set (RF terminals ,antenna terminals ,video and audio input and output
terminals ,microphone jacks ,earphone jacks ,etc.)See table below .
·Clearance distance
When replacing primary circuit components ,confirm specified clearance distance (d),between
soldered terminals ,and between terminals and surrounding metallic parts .See table below.
Table 1: Ratings for selected areas
AC Line Voltage
Region
*110 to 240 v
USA,Australia
110 to 230 v
Europe
Insulation
Dielectric
Clearance
Resistance
Steength
Distance(d),(d)
4kv/minute
F 6mm(d)
F
4M/500VD
C
*Class ll model only .
Note . This table is unofficial and for reference only . Be sure to confirm the precise values for
your particular country and locality.
· Leakage Current test
Confirm specified or lower leakage current between B(earth ground ,power cord plug prongs )
and externally exposed accessible (RF terminals ,antenna terminals ,video and audio input and
output terminals ,microphone jacks ,earphone jacks ,etc .)
8
SAFETY PRECAUTIONS
Measuring Method: (Power ON)
Insert load Z between B (earth ground ,power cord plug prongs )and exposed
accessible parts .Use an AC voltmeter to measure across both terminals of load Z .
See figure and following table .
Table 2: Leakage current ratings for selected areas .
AC Line Voltage
Earth Ground
Region
Load Z
Leakage Current(i)
(B) to :
<or= 0.7mA peak
2k ohm
100 to 130 v
Europe
200 to 240 v
Australia
<or= 2mA DC
Antenna earth
Terminals
<or=0.7mA peak
Other terminals
50k ohm
<or= 2mA DC
Note . This table is for IEC member only . Be sure to confirm the precise values for
your particular country and locality.
9
Electrical Performance Standards
KEY
ITEM
TEST
A
U
D
I
O
3
4
5
6
7
CONTENT
UNIT
C
H
A
R
A
C
T
E
R
SPECIFICATION
20Hz
（ V ） 10k
LOAD
dB
±2
125Hz
dB
±2
1KHz
dB
±2
18KHz
dB
±2
20KHz
dB
±2
S/N RATIO（A-WTD）
dB
≥90
THD+N
dB
≤-60(1KHz)
CROSS-TALK
dB
≥70
CHANNEL DIFFERENCE
dB
≤1.5
ANALOG OUTPUT LEVEL
1
2
PERFORMANCE LIST
FREQUENCY
RESPONSE
LEVEL
1.7±0.3
±1
0
-10
NON-
-20
LINEAR
dB
-40
-60
8
DYNAMIC RANGE
dB
≥75(1KHz)
9
DIGITAL OUTPUTLEVEL
(Vp-p)LOAD
0.5±0.05
10
VIDEO OUTPUT LEVET
Vp-p
1.0±0.2
HORIZONTAL DEFINITION
LINE
≥500
LUMINANCE CHNANEL
BANDWITH
LUMINANCE
NON-LINEAR
DISTORTION
DIFFERENTIAL PHASE
MHz
≥3.5
%
≤2
DP( 0 )
≤8
OUTPUT LEVEL
(Vp-p) LOAD
1.5±0.5
DISTORTION
%
≤0.5
dB
±3
dB
≥45
REDING TIME
S
≤5
LONG TIME READ TIME
S
≤10
MAX POWER CONSUMER
VA or
11
12
13
V
I
D
E
O
CHARACTER
14
15
FREQUENCY
MIC
(120Hz/5K)
CHARACTER
S/N
16
17
18
OTHERS
S-VIDEO LUMINANCE
RESPONSE
RATIO
LEVEL
S-VIDEO COLOUR SYNCH LEVEL
10
W
30
(Vp-p) LOAD
0.7±0.14
(VP-P)LOAD
0.3±0.06
DVD Box Block Diagram
S-VIDEO
VIDEO
COAXIAL
FR
FL
Pr/Cr
Pb/Cb
Y
1
2
3
4
5
6
7
OPTICAL
1
2
3
4
5
6
7
MIC IN
6
5
4
3
2
1
6
5
4
3
2
1
5.1CH
3
2
1
CN6
CN7
R
E
W
O
P
DECODER(ZR36966)
24PIN
0.5mm
SPACE
LOADER:SANYO
CON2
CN503
CN5
6
5
4
3
2
1
CON1
5
4
3
2
1
6
5
4
3
2
1
CN4
6
5
4
3
2
1
6
5
4
3
2
1
5
4
3
2
1
DISPLAY
1 234567
TRAY
1 234567
KEY
POWER SWITCH
SD-520
11
General Classification of Symptoms
Common phenomenon classification
1.
Key invalid
N
Check Power line connect to
POWER?Check switch ?
Connect again. Normal?
Y
N
Check signal wire connect to
decoder board correct?
Connect again, Normal?
Y
KB board OK?
Y
To decoder board service
N
To KB board service
2.
TV no voice
N
Check audio wire between
DVD player and TV
Connect DVD left/right
channel to TV correctly
Y
Check 5.1ch signal
connection ok?
wire
Y
N
Connect again
N
Setup audio by referring to manual
DVD audio setup correct?
Y
To decoder board service
12
General Classification of Symptoms
3.
TV no display
N
Video wire connection correct?
Connect to TV correctly
Y
Press Setup menu video mode of the
remote..
N
Press times, normal?
N
Y
To decoder board service
4.
Cannot open tray
Y
Loader too low/high?
Adjust loader
N
Check Loader signal wire
connects to board correct?
N
Connect again,
normal?
Y
N
Check flat ribbon connect to
decoder board.
Connect again, normal?
N
Y
I
13
General Classification of Symptoms
5.
Do not read disc
Y
Disc scratched/dirty?
Replace disc
N
N
Check Loader wire connect to
decoder board correct
Connect again, normal?
N
Y
N
Check flat ribbon connect to
decoder board correct
Connect again, normal?
N
Y
To decoder board
service
I
Press “Open/Close” on front panel, the
data line of KB board has wave out?
N
To KB board service
Y
N
Press “Open/Close” on remote control,
the IR line of KB board has wave out?
Y
To Decoder board service
14
To KB board service
General Classification of Symptoms
6.
Image/voice distortion
Y
Disc scratched/dirty?
Replace
N
To decoder board service
7.
Optical/Coaxial output abnormal
N
Audio setup correct?
Adjust according to
manual instruction
Y
N
Check optical/coaxial connection to
decoder device OK?
Adjust according to
manual instruction
Y
To decoder board service
8.
Read disc and halt
Y
Disc scratched/dirty?
Replace/clean disc
N
To decoder board service
15
General Classification of Symptoms
Judgment standard for loader damage
When below phenomenon exist, the loader may be damaged.
1.
no spin
2.
no laser
3.
cannot open/close tray normally
4.
main axis turning, but no pickup focus or gliding
5.
cannot read discs
When above phenomenon exists, please try replacing loader to solve
the problem.
16
Software update method
1.RECORDING UPDATING DISC.
Recording as a data disc containing belowed three files,.
build.img
ginger_release_dc0_dv34_1x16.bin
update.ver
NOTES: Don’t change the name of file;
Use new CD-R DISC;
Recording DISC type as DATA.
2.UPDATING
A Put the DISC into the unit, it will be reading automatically.
B When the information appeared on screen, press RIGHT button, to light the “START”,
and press ENTER button
C The unit will read the data, and it will be tray out automatically when it finished.
D After the tray out, take off the disc. After updating, the tray in automatically.
NOTES: The whole process need about 4 minutes, please make sure of no power off
happened.
3.CHECK THE SOFTWARE VERSION
Press “1 6 4 “number botton in “NO DISC” mode, it will display the new software version
number.
17
Repair of Power Board
1
2
3
D7
D
10uH/1A
L2
T1
4
D
SR360
C7
1000u
47K
C4
103/1KV
R2
C8
470u
D1
D8
FR104
D9
RF104
L3
D5
10uH
1n4007
D4
C
L1
F1
D2
10uH
CN4
R3
100k
1
2
3
4
5
6
C10
100u
D6
FR104
C2
1N4007
D3
CN1
L4
C3
22u/400V
T1A-250V
FR107
1N4007
C11
100u
C9
100u
C12
100u
5V
GND
5V
GND
+12V
-12V
C
104
2
1
R4
100k
1N4007
R6
22
R5
100k
CN2
2
1
R7
1k
8
B
R8
150
R9
5k1
IC2
5
IC3
TL431
IC1-DH321
1
4
C5
223
PC817B
R11
180k
R1
7k5
C6
CY3
10u/50V
471
B
C15
104
R10
5k1
Title
A
Size
A
Number
Revision
A4
Date:
File:
1
2
3
18
30-Oct-2006
Sheet of
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Drawn By:
4
Repair of Power Board
Repair of Power Board
I.
Power switch working principles
The internal parts of main power switch IC DH321 (IC1) consist of: oscillation circuit,
error test and T-ratio over current overheating protection, under-voltage and over voltage
protection, and power-amp MOSFET. For descriptions of pins and block diagrams of internal
IC, see appendix.
1. Conversion from AC. to DC. circuit
240V/110V AC. current flows restrictively through C1,fuse and L1 combines to be
share-mode and differential-mode filter circuit, filtering external disturbance and
preventing internal electromagnetic radiation, and through D1~D4 to combine as bridge
rectification. After C3 undergoes electrolytic filter, we can obtain a 320/140V DC. voltage
(Uhv).
2. Process to start up the software
Connect R6, D6 ,C6 and bias winding to the multi-functional VCC pin of IC1, test
DC. input voltage Uhv. This can effect as a protective function to restrict under-voltage
current and reduce over voltage T-ratio.
R3,R4,R5 is the charging circuits to start up software, and electric current inside IC1
flows from control pin 5. When Vc reaches 12V, internal oscillation circuit initiates,
motivating power-amp MOSFET, forming AC. current on T1 primary winding, coupling
to secondary winding. Power switch start-up has completed.
3. Bias winding
After starting the power, T1 bias winding supplies bias current and error current to
pin2 of IC1, through D6,R6 and C6 rectifier filter .
4. Clamping protective circuit
C4, R2, D5 are connected to primary switch transformer, in order to fix the leakage
electrode voltage of IC1 and to prevent the voltage exceeding the limit of IC1 leakage
electrode voltage when switch transformer discharges at startup or overloading stage.
5. Regulation process of output voltage
When the input current of control pin (FB) IC1 decreases (or increases), oscillation
waveform will be regulated automatically so that T ratio will increase (or decrease) and
the output voltage will increase (or decrease).
Output voltage feedback circuit is completed by IC2, IC3.
IC3 (TL431) is a reference regulation IC, reference voltage is 2.5V:
Its pins are shown on the diagram below:
19
Repair of Power Board
Main characteristics of TL431
(1) Anode voltage Vka, anode change in voltage
(2) reference voltage, reference change in voltage
Secondary main winding, set 5V to output change in voltage△Vo; we can deduce △
VR7=356△Vo
From this formula we can deduce: If 5V Voltage rises, the voltage VR7 of the two ends of
R7 will rise, error voltage increases by 356 times. VR7 error voltage is added to the
light-emitting diode of IC3 optical coupling, so that the emitting intensity increases. Coupling
increases the current of IC3 light-electric triode. The control current of IC2 then rises and the
T ratio of open/close power reduces, thus reducing 5V output voltage.
On the other hand, if 5V voltage reduces, negative feedback will cause it to rise
automatically.
6. Output voltage for the first time
After 5V main feedback winding has been regulated, other windings will be
regulated relatively, and the voltage required by each circuit of the DVD machine can be
obtained.
II. Repair flowchart of open/close power:
Below are two flowcharts for troubleshooting which occur frequently when open/close power
Repair of Power Board
20
Repair of Power Board
1．No voltage output
Y
Measure each output terminal
to see whether it is short circuit
Eliminate short-circuit point
N
Measure the voltage of C3
Far less than 320V/140
About 320V/140
Measure the voltage of
6-8 pin (Drain) of IC1
0V
Check AC. and DC. conversion
elements such as FUSE, power
switch, L1, D1,D2,D3,D4 etc.
Open circuit of 1~3 pins of T1
About 320V/140
N
Measure whether the voltage of 2 pin IC1
(VCC) is equal to 12V.
D6, R6
damaged
or
IC1
is
Y
Measure whether the voltage of
3 pin IC2 (M) is equal to 1V
Y
Check whether C5 or IC2
are damaged
N
Test whether the windings of T1 are
short circuit, open circuit
Y
Replace T1
N
Measure other elements
21
Repair of Power Board
2．Unstable voltage output, decrease of carrier capability
Take out the output cord,
connect false loading
Normal output voltage
Other power boards
over loaded
Abnormal
Measure the working temperature of
elements by infrared thermometer
Abnormal
Analyze heating elements
Normal
Is the voltage of light-emitting tubes
in optical coupling at about 1V?
N
Replace optical coupling
Y
N
Is the reference voltage of IC3
at 2.5V?
Is it normal after replacing
TL431?
Y
Is the voltage of IC1
drain pin normal?
N
N
Check T1 or IC1
N
There is damage in D1,D2,D3,D4
forming half-wave rectification
Y
Is the voltage of C3 at
320V/140?
Y
Test other elements
22
5
4
While using BA5954
R106
R103
R107
R102
Crystal
OSCOUT
C117
10nF
FOCUS_S
TRACK_S
R106
R103
27K [51K]
27K [51K]
SPDL_S
SLED_S
R107
R102
22K [22K]
33K [51K]
FB102
CN105
R147
DSPVCC33
NM
[4.7K]
MEMADD5
MEMADD4
MEMADD3
MEMADD2
MEMADD1
MEMADD19
D5V
USB_DP
USB_DN
RAMADD4
RAMADD3
RAMADD5
MEMADD1
DSPVCC33
RF _F
SPDL_SENS+
RF_E
SPDL_SENSRF _D
RF _C
RF_B
RF_A
RFN
R FP
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
U101B
ZR36966
245
244
243
242
241
240
239
238
237
236
235
234
1
Close to
Vaddis
C_B_U
Y_R_V
CVBS_C
MUTE_CTL
R3
RESET#
R134
R135
R136
R137
75R 1%
75R 1%
75R 1%
75R 1%
75R 1%
CVBS_G_Y
VDDPLL
AMCLK
IRRCV
FPC_DOUT
FPC_CLK
FPC_STB
UART:
For customer model, please just keep
test point close to Vaddis.
MUTE_CTL
NM
[24LC02 ]
C
MUTE_CTL
FS3
DUPRD0
DUPTD0
10K [NM]
CD_DVD
Close to Vaddis.
AIN
S/PDIF_OUT
ABCLK
ALRCLK
H SYNC
VSYNC
APWM_CENAPWM_CEN+
INSW
DRVSB
IN_OUT_SW
CLOSE
OPEN
HOMESW
4.7R
MARK6
INSW
DRVSB
IN_OUT_SW
CLOSE
OPEN
HOMESW
C177 C171 C169 C176 C175 C170
1nF
1nF
1nF
100pF 100pF 1nF
EC101
100uF/16V
Close to pin 105
Expansion header
MIC_ON
APWM_SR+
APWM_SRAPWM_SL+
APWM_SLAPWM_LFE+
APWM_LFE-
CN104
VDDPLL
VDDAFE
VDD1AFE
VDDPWM
APWM_SRAPWM_SR+
APWM_LFEAPWM_LFE+
M5V
M5V 500mA for device
USB_DN
USB_DP
R143
15K
[NM]
4
3
2
1
R144
15K
[NM]
C3
2.0X4S
NM
[10nF] [NM]
V966U only.
RAMCKE
4.7K
C101 NM
[22pF]
Close to Vaddis.
RAMADD11
RAMADD9
RAMADD8
RAMADD7
RAMADD6
RAMADD5
RAMADD4
C143
10nF
R101
RAMDQM
PCLK
RAMCKE
C142
10nF
DSPVCC33
+ EC146
47uF/16V
RAMDAT8
C141
10nF
DSPVCC33
C140
10nF
RAMDAT10
RAMDAT9
C166
10nF
C139
10nF
RAMDAT12
RAMDAT11
C138
10nF
RAMDAT14
RAMDAT13
C137
10nF
RAMDAT15
C136
10nF
RAMDAT14
RAMDAT15
C135
10nF
RAMDAT12
RAMDAT13
C134
10nF
1
2
3
4
4
DSPVCC33
RAMDAT10
RAMDAT11
C133
10nF
A0
A1
A2
GND
I2C_CLK
I2C_DAT
For
RAMDAT8
RAMDAT9
C132
10nF
VCC
WP
SCL
SDA
MUX GPIOs
DSPVCC33
R151
C147
NM
[0.1uF]
APWM_LAPWM_L+
APWM_RAPWM_R+
H SYNC
VS YNC
APWM_CENAPWM_CEN+
+
R120
2K
AMCLK
APWM_LAPWM_L+
APWM_RAPWM_R+
VDDAPWM
8
7
6
5
DSPVCC33
CVBS_G_Y
R119
2K
DUPRD0 R2
DUPTD0
FPC_DOUT
FPC_CLK
FPC_STB
INSW
CD_DVD
DRVSB
IN_OUT_SW
CLOSE
OPEN
HOMESW
A IN
S/PDIF_OUT
ABCLK
ALRCLK
U105
Y_R_V
CVBS_C
VDDDAC
OSCIN
OSCOUT
EEPROM
C_B_U
VDDDAC
Close to
Vaddis
3
DSPVCC33
C131
10nF
R116
10K
LL4148
R104
392 Ohm 1%
156
155
154
153
152
151
150
149
148
147
146
145
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
APWM_SR+
APWM_SRAPWM_SL+
APWM_SLAPWM_LFE+
APWM_LFE-
RAMCKE
RAMDAT13
RAMDAT2
RAMDAT10
RAMDAT5
RAMDAT11
RAMDAT4
RAMDAT12
RAMDAT3
RAMDAT8
RAMDAT7
RAMDAT9
RAMDAT6
R5
0R
PCLK
RAMADD4
RAMADD5
RAMADD6
RAMADD7
RAMADD8
RAMADD9
C130
10nF
EC106
10uF/16V
D304
C167
NM
[5pF]
PCLK
RAMDQM
2
3
RF_B
RF_A
VDD1AFE
MIC_VOCAL
RF_F
SPDL_SENS+
RF_E
SPDL_SENSRF_D
RF_C
15.4K 1%
0.1uF
VC
R105
C168
VDDAFE
VDDPWM
RESOUT
VREF
VC
FOCUS_PWM
LD_DVD
LD_CD
MD_DVD
MD_CD
I2C_DAT
I2C_CLK
TRACK_PWM
SPDL_PWM
100R
100R
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
R142
56R
No EMI test: Hold trace 1/2/3/4, and remove FB113/FB114/FB115/FB117.
For EMI: Remove trace 1/2/3/4, after finish layout, remove the trace
between pin1 and pin2 of FB113/FB114/FB115/FB117.
Note: FB113/FB114/FB115/FB117 should be placed around the 4 corner of Vaddis.
DSPVCC33
+
R149
100R
1
Q1
9014
B
JP102
OPEN
CLOSE
OPEN
BOOTSEL1
[NM]
C129
10nF
209
210
211
212
213
214
215
216
217
218
219
220
221
IPCLK
JP101
OPEN
OPEN
CLOSE
JP102
1
RESET#
C122
0.1UF
1
2
FFC-50
DSPVCC18
MBW2012-221
+ EC111
100uF/16V
Put at the middle of traces.
BOOTSEL
Play
Download
SW debug
R122
1K
[NM]
ZR36966
RAMWERAMDQM
FC U_IRQ
FCU_RST
MEMADD0
MEMDAT0
MEMDAT1
MEMDAT8
GND
MEMDAT2
MEMDAT9
MEMDAT10
CARD_DET
FCU_CS2#
FCU_CS3#
GND
FCU_WAIT#
MEMCS0#
MEMCS1#
CARD_SEL
GND
R110
10K
FB104
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
RAMADD2
RAMADD6
RAMADD1
RAMADD7
MEMADD5
MEMADD4
MEMADD3
MEMADD2
MEMADD1
RESET
VDDPLL
GNDDACBS2
RSET
DAC1
VDDDAC
DAC2
DAC3
VDDDAC
DAC4
GNDDAC_D
DAC5
XIN
XO
VDDPLL
GNDPLL
RESET#
GNDC
VDDC
GPIO[48]/DUPRD1
GPIO[47]/DUPTD1
GPIO[46]/DUPRD0
GPIO[45]/PWMCO[5]/DUPTD0
VDDP
IGPIO[44]
GPIO[43]/TDO
GPIO[42]/TCK
GPIO[41]/TDI/NMI
GPIO[40]
GPIO[39]
GPIO[38]
IGPIO[37]/TMS/NMI
GPIO[36]
GPIO[35]
GPIO[34]/RAMCKE/SPDIFIN
GPIO[33]/AIN/SPDIFIN
GPIO[32]/SPDIFO
GPIO[31]/ABCLK
GPIO[30]/ALRCLK
VDDP
GPIO[29]/AMCLK
GNDC
GPIO[28]/AOUT[0]/APWM0GPIO[27]/APWM0+
GPIO[26]/AOUT[1]/APWM1GPIO[25]/APWM1+
GPIO[24]/AOUT[2]/APWM2IGPIO[23]/APWM2+
GNDAPWM
GPIO[22]/AOUT[3]/APWM3GPIO[21]/APWM3+
GPIO[20]/APWM4GPIO[19]/PWMCO[5]/APWM4+
VDDAPWM
Vaddis 9
RAMADD9
RAMADD11
RAMCS0RAMBA
RAMCS1RAMRASRAMCAS-
FCU_SCLK
D5V
MEMDAT3
MEMDAT11
MEMDAT4
MEMDAT12
MEMDAT5
MEMDAT13
MEMDAT6
MEMDAT14
MEMDAT7
MEMDAT15
GND
D5V
MEMWR#
MEMRD#
MEMADD10
FCU_IORD#
MEMADD9
FCU_IOW R#
GND
MEMADD8
MEMADD7
MEMADD6
IPCLK
B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
DSPVCC33
+ EC121
100uF/16V
Expansion header
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
DSPVCC33
MBW2012-221
C119
10nF
Close to Vaddis!
.
MEMADD16
MEMCS1#
MEMADD15
MEMADD14
MEMADD13
MEMADD12
MEMADD11
MEMADD10
MEMADD9
MEMADD8
MEMWR#
MEMADD18
MEMADD17
MEMADD7
MEMADD6
C
D
22pF
Close to Vaddis!
VDDDAC
RF
C165
33pF
1
MEMDAT7
MEMDAT15
MEMDAT[2]
MEMDAT[10]/GPIO[0]
MEMDAT[3]
MEMDAT[11]/GPIO[1]
MEMDAT[4]
MEMDAT[12]/GPIO[2]
MEMDAT[5]
MEMDAT[13]/GPIO[3]
MEMDAT[6]
MEMDAT[14]/GPIO[4]
GNDC
MEMDAT[7]
MEMDAT[15]
VDDC
VDDP
MEMADD[16]
MEMCS1#/GPIO[5]
MEMADD[15]
MEMADD[14]
MEMADD[13]
MEMADD[12]
MEMADD[11]
MEMADD[10]
MEMADD[9]
MEMADD[8]
MEMWR#
MEMADD[18]/GPIO[6]
MEMADD[17]
MEMADD[7]
MEMADD[6]
GNDC
MEMADD[5]
MEMADD[4]
MEMADD[3]
VDDP
MEMADD[2]
MEMADD[1]
MEMADD[19]/IGPIO[7]
USBVDD
USBDP/GPO[67]
USBDN/GPO[68]
USBGND
RAMADD[4]
RAMADD[3]
RAMADD[5]
VDDIP
GNDC
RAMADD[2]
RAMADD[6]
RAMADD[1]
RAMADD[7]
VDDC
257
256
255
254
253
252
251
250
249
248
247
246
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
C151
NM
[33pF]
MEMDAT2
MEMDAT10
MEMDAT3
MEMDAT11
MEMDAT4
MEMDAT12
MEMDAT5
MEMDAT13
MEMDAT6
MEMDAT14
FB105
RF
C164 1nF
RAMADD[0]
RAMADD[8]
RAMADD[10]
VDDP
GNDC
RAMADD[9]
RAMADD[11]/GPO[64]
RAMCS0#
RAMBA
RAMCS1#/GPO[65]
RAMRAS#
RAMCAS#
VDDP
GNDC
RAMWE#
RAMDQM
GNDPCLK
PCLK
VDDPCLK
RAMDAT[8]
RAMDAT[7]
RAMDAT[9]
RAMDAT[6]
VDDP
GNDC
RAMDAT[10]
RAMDAT[5]
RAMDAT[11]
RAMDAT[4]
RAMDAT[12]
RAMDAT[3]
VDDP
GNDC
RAMDAT[13]
RAMDAT[2]
VDDC
RAMDAT[14]
RAMDAT[1]
RAMDAT[15]
RAMDAT[0]
VDDP
RAMDQM2/RAMCKE/GPO[66]
GNDC
RAMCKE/SDI_PSC/GPIO[10]
GPAIO/IGPIO[11]
APWM7+/GPIO[12]
APWM7-/GPIO[13]
APWM6+/GPIO[14]
APWM6-/GPIO[15]
APWM5+/GPIO[16]
APWM5-/GPIO[17]
AIN/SPDIFIN/IO[18]
C150
NM
[33pF]
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
HS
MARK5
R118
0R
NM
C108
EC116
100uF/16V
C163 1nF
VDDP
GPIO[9]/MEMDAT[9]
MEMDAT[1]
GPIO[8]/MEMDAT[8]
MEMDAT[0]
MEMRD#
MEMCS0#
MEMADD[0]
GPIO[63]/MEMCS2#
GPIO[62]/FCU_IORD#
GPIO[61]/FCU_IOWR#
GPIO[60]/FCU_SCLK
GPIO[59]/FCU_CS2#
GPIO[58]/FCU_CS3#
GPIO[57]/FCU_WAIT#
GPIO[56]/FCU_RST
IGPIO[55]/FCU_IRQ
GNDC
VDDC
IGPIO[54]/PWMCO[5]
GPIO[53]/PWMCO[4]
GPIO[52]/PWMCO[3]
GPIO[51]/PWMCO[2]
GNDPWM
GPIO[50]/PWMCO[1]
VDDPWM
GPIO[49]/PWMCO[0]
DVD_LD
CD_LD
DVD_MD
CD_MD
VDDSAFE
GNDREF
RESOUT
VREF
VC
GND1AFE
H
G
GNDAFE
F
K
E
J
D
C
VDDAFE
B
A
VDD1AFE
RFN
RFP
U101A
MEMCS0#
MEMADD0
C115
10nF
C110
1nF
222
223
224
225
226
227
228
229
230
231
232
233
Close to Pin37 of U104
OSCIN
+
C114
10nF
208
207
206
205
204
203
202
201
200
199
198
197
196
195
194
193
192
191
190
189
188
187
186
185
184
183
182
181
180
179
178
177
176
175
174
173
172
171
170
169
168
167
166
165
164
163
162
161
160
159
158
157
DSPVCC33
DSPVCC33
MBW2012-221
2
DSPVCC18
C148
10nF
R140
R141
FCU_IORD#
FCU_IOWR#
FCU_SCLK
FCU_CS2#
FCU_CS3#
FCU_WAIT#
FCU_RST
F CU_IRQ
R145
NM
[0R]
DSPVCC33
SST39VF800
[39VF400/800/160]
Flash select R117
Intel
NM
AMD/SST
0R
MEMDAT9
MEMDAT1
MEMDAT8
MEMDAT0
MEMRD#
MEMCS0#
MEMADD0
CARD_SEL
R146
0R
[NM]
RAMADD0
RAMADD8
RAMADD10
R118
NM
MEMADD18
MEMADD17
MEMADD7
MEMADD6
MEMADD5
MEMADD4
MEMADD3
MEMADD2
MEMADD1
LD_DVD
LD_CD
MD_DVD
MD_CD
27nF 27nF
VDDAFE
1nF
SLED_PWM
1nF
Y101
27.000MHz
FB103
MBW2012-221
MEMADD16
MEMDAT15
MEMDAT7
MEMDAT14
MEMDAT6
MEMDAT13
MEMDAT5
MEMDAT12
MEMDAT4
DSPVCC33
MEMDAT11
MEMDAT3
MEMDAT10
MEMDAT2
MEMDAT9
MEMDAT1
MEMDAT8
MEMDAT0
MEMRD#
R108
220K
VDD1AFE
VDDAFE
.
MEMWR#
FLASH_RST#
DSPVCC33
NM
DSPVCC33R152 [4.7K]
RESET# R153
0R
[NM]
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
22pF
2
FOCUS_S
TRACK_S
1
MEMADD19
A16
VCCQ
GND
DQ15
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VCC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE#
GND
CE#
A0
C109
+ EC118
100uF/16V
Close to Vaddis!
U104
A15
BYTE#
A14
A13
A12
A11
A10
A9
A8
NC A19
A20
WE#
RP#
VPP N C
WP# N C
A19 R Y/BY#
A18
A17
A7
A6
A5
A4
A3
A2
A1
SERVO33
MBW2012-221
C104 C105 C103 C102
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Use it to connect the shell of the crystal with ground.
FB101
VDDPWM
Flash speed <= 70 nS.
If plan to use 90ns Flash, it needs to be verified by s/w.
MEMADD15
MEMADD14
MEMADD13
MEMADD12
MEMADD11
MEMADD10
MEMADD9
MEMADD8
R117
0R
1
Important power supply!
51K
51K
22K
51K
SPDL_S
SLED_S
D
2
While using AM5888S
R103
30K
20K
33K
34K
27K
33K
27K
24K
CARD_DET
R106
30K
27K
33K
47K
27K
36K
24K
36K
RAMDAT14
RAMDAT1
RAMDAT15
RAMDAT0
OPU
Sony310
DL3
IAT510
THMSM507S
HD65/HD62
SPU3153
502W
Arima681
3
SDRAM3.3V
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
DSPVCC18
U102
VSS
DQ15
VSSQ
DQ14
DQ13
VDDQ
DQ12
DQ11
VSSQ
DQ10
DQ9
VDDQ
DQ8
VSS
NC
DQMH
CLK
CKE
NC
A11
A9
A8
A7
A6
A5
A4
VSS
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
+ EC145
47uF/16V
VSS
A4
A5
A6
A7
A8
A9
NC
CKE
CLK
UDQM
NC
VDDQ
DQ8
DQ9
VSSQ
DQ10
DQ11
VDDQ
DQ12
DQ13
VSSQ
DQ14
DQ15
VSS
C144
10nF
U103
16Mbit: K4S161622C-TC/L70
[64Mbit:K4S641632H-UC70]
FB109
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
DQML
WE#
CAS#
RAS#
CS#
BA0
BA1
A10
A0
A1
A2
A3
VDD
SDRAM configuration:
1X16Mbit: CS0# = Low;
1X64Mbit: CS1# = Low; CS0#=BA1
SDRAM speed <=7ns
Tras <=44.4ns
Trp
<=22.2ns
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VDD
A3
A2
A1
A0
A10/AP
BA
CS
RAS
CAS
WE
LDQM
VDDQ
DQ7
DQ6
VSSQ
DQ5
DQ4
VDDQ
DQ3
DQ2
VSSQ
DQ1
DQ0
VDD
A
NM
SDRAM3.3V
DSPVCC33
FBR
RAMDAT7
RAMDQM
RAMWERAMCASRAMRASRAMCS1RAMBA
RAMCS0RAMADD10
RAMADD0
RAMADD1
RAMADD2
RAMADD3
RAMDAT5
RAMDAT6
RAMDAT3
RAMDAT4
Place de-coupling capacitors close to power pins.
RAMDAT1
RAMDAT2
SDRAM3.3V
C128
10nF
RAMDAT0
C127
10nF
RAMDAT1
RAMDAT0
C126
10nF
RAMDAT3
RAMDAT2
C125
10nF
RAMDAT5
RAMDAT4
C124
10nF
RAMDAT7
RAMDAT6
C123
10nF
RAMADD3
RAMADD2
RAMADD1
RAMADD0
RAMADD10
RAMBA
RAMCS0RAMRASRAMCASRAMWERAMDQM
EC120
+ 47uF/16V
ZORAN Confidential
Title
DC0
Size
Document Number
Custom
Rev
30
Vaddis, Flash, SDRAM
Date:
5
4
3
2
Wednesday, June 28, 2006
1
Sheet
4
of
7
5
4
3
2
1
Close to CN201
DSPVCC33
CD LD
DVD LD
EMC
C216
NM
[470pF]
+ EC228
47uF/16V
2
C205
NM
[470pF]
R221
4.7R
Q204
BT2907
3
D
R222
1
220R
While using BA5954
LD_DVD
OPU
Sony310
DL3
IAT510
TOP1100S
SEMCO-SP1
MITSM820W
HD8(DV23)
HOP1200W
HD65/HD62
502W
Arima681
DSPVCC33
CN201 is used for Sanyo/Samsung/Sony OPUs
R224
4.7R
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C208
1nF
Q205
BT2907
R223
1
220R
LD_CD
R202=300R, for HOP1200W only
R202
0R [300R]
3
DVDLD
OPU_HFM
OPU5V
VC1
RFA5V
C212
1nF
CD LD
VR_DVD
VR_CD
L201
R217
10uH
33R
RF_E
2.1V
While using AM5888s
OPU
HD65
Hitachi
R210
100R
0
100R
10R
0
91R
0
NM
0
91R
NM
R209
0
NM
R210
0R
NM
R270
NM
91R
R283
NM
91R
D
MD_DVD
R210
0R
[NM]
R294
0R
MD_CD
R209
0R
[NM]
VR_CD
VR_DVD
R295
0R
+ EC201
100uF/16V
OPU
HOP1200W
Arima681
Others
RFA5V
VC
R204
3.3K
RF _F
RF_B
RF_A
RF
C D_DVD
R270
100R
100R
NM
R283
100R
100R
NM
OPU
313A
R294: 100R
R295: 100R
HD62
0R
0R
R270
NM
[91R]
502W
91R
91R
R283
NM
[91R]
PDIC Control:
DVD=LOW
CD=HIGH
C D_DVD
RF _D
RF _C
GND
TACTTACT+
FACT+
FACT-
25
26
GND
GND-LD
DVD-LD
NC
HFM
MD
CD-LD
VR-DVD
VR-CD
NC
E
VCC
VC(VREF)
GND/PD
F
B
A
RF
CD/DVD_SW
D
C
TT+
F+
F-
2
C207
1nF
CN201
24Pin OPU connector
+ EC229
47uF/16V
R209
100R
0
100R
10R
0
91R
0
NM
0
91R
NM
C203
0.1uF
C204
0.1uF
U202
AM5888S
+ EC209
47uF/16V
(value) is for AM5888s
C
Only for DPD20428/SPU3153/HOP1250 OPUs
TRTR+
FOFO+
MD(DVD)
VCC/NC
VR(DVD)
GND(DVD)
LD(DVD)
LD(CD)
VR(CD)
GND(CD)
MD(CD)
NC/SEL
V-RF
V-C
V-B
V-A
V-D
V-F
V-E
Vcc
Vs
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TACTTACT+
FACTFACT+
FOCUS_S
SLED_S
TRACK_S
SPDL_S
CLOSE
OPEN
DRVSB
NM
[0R] MD_DVD
R293
OPU_HFM
VR_DVD
CLOSE
OPEN
DRVSB
VC2
VINFC
3V3_DRV
2
CFCERR1(TRB_1)
1V8_FB
3
CFCERR2(REGO2)
SLED_S
4
VINSL+
3V3_FB
5
VINSL-(REGO1)
OPEN
6
VOSL(FWD)
CLOSE
7
VNFFC(REV)
STBY
28
BIAS
27
VINTK
26
CTKERR1(TRB_2)
25
CTKERR2(NC)
24
VINLD
23
DRVSB
Close to motor driver.
0R
SL_MOT+
SL_MOTFACTFACT+
TACTTACT+
LOADLOAD+
R256
1K
TRACK_S
1V8_DRV
C217
NM
[100pF]
R264
1K 1%
SPDL_S
22
PVCC2
21
MD_CD
NM [0R]
NM [0R]
C D_DVD
RF
RF _C
RF_B
RF_A
RF _D
RF _F
RF_E
OPU5V
VC1
PVCC1(LOAD-)
VNFTK(NC)
20
10
PGND(LOAD+)
PGND(VCC2)
19
11
VOSL-(VOSL+)
VOLD-
18
SP_M-
12
VOSL+(VOSL-)
VOLD+
17
SP_MOT+
FACT-
13
VOFC-
VOTK-
16
TACT-
FACT+
14
VOFC+
VOTK+
15
TACT+
VCC
LOAD-
9
LOAD+
SL_MOT+
SL_MOT-
+
EC204
220uF/10V
3V3_DRV
3V3_FB
1V8_DRV
1V8_FB
C245
0.1uF
C242
0.1uF
R265
1K 1%
C246
0.1uF
29
30
Choose the value in "[ ]" when using
Hitachi/Sankyo/Aatech OPU
R278
33K
VC2
PREGND
8
M5V
C
DSPVCC33
VC2
R271
M5V
DVDLD
CD LD
VR_CD
R240
R242
FOCUS_S
SLED_S
TRACK_S
SPDL_S
1
GND
GND1
CN202
FOCUS_S
NM [24Pin OPU connector]
[NM]
BEMF
Current Type(Default)
R298
SP_M-
B
SPDL_SENS2K
B
SPDL_SENS-
D204
2
DSPVCC33
R281
1R
M5V
Value in [ ] is for AM5888s
1
SL_MOTSL_MOT+
HOMESW
1
2
3
4
5
6
SP_MOT+
SP_MOT2
SLEDSLED+
HOMESW
GND
SP+
SP-
R254
4.7K
R236
4.7K
R286
4.7K
[NM]
DSPVCC33
HOMESW
IN_OUT_SW
INSW
5p 2.0: TRAY_Con
HOMESW
IN_OUT_SW
INSW
R218
1.2K
[1.2K 1%]
EC276
220UF/16V
[220uF/10V]
1.25V
2E
1B
3C
Q211
SS8550
[PSS8550]
SP_MOT-
BAT54C
SPDL_SENS+
2K
Q210, Q211 must be
genuine 8550, such
as PHILIPS
PSS8550D, Jiangsu
Changdian S8550.
SPDL_SENS+
DSPVCC18
+
R219
2K
[2K 1%]
3V3_FB
4.7R 1W
[4.7R 1W]
1V8_DRV 1
Q210
SS8550
[PSS8550]
3
3V3_DRV 1
3
LOADLOAD+
1
2
3
4
5
2
R200
2
DSPVCC33
CN5
R245
S8 050/S8550
D201
IN4001
[1N4001]
CN4
LOADLOAD+
OUTSW
GND
INSW
3
1
6P 2.0: SLED & SPINDLE Con
1V8_FB
R220
430R
[430R 1%]
1.25V
R238
1K
[1K 1%]
Q210, 211 must have
enough large pads
for thermal spreading
A
A
ZORAN Confidential
Title
DC0
Size
Document Number
Custom
R ev
30
Front End & Regulator
D ate:
5
4
3
2
W ednesday, June 28, 2006
1
Sheet
5
of
7
5
4
Max. amplitude of Mic_Audio signal is 4Vrms
3
1
R460
1K
MIC1
MIC_IN
MIC2
R432
4.7K
EC402
When internal DAC:
R459
2K
W/ Karaoke
10uF/16V
LR IN
+
R327, R328, R337, R338
R462, R463, R464, R465
R433
1.2K
NM
4.75K 1%
W/o Karaoke
4.75K 1%
NM
When external DAC:
R431
D
1
R425
EC419
10uF/16V
MIC_ON
4.7K
When external DAC + Karaoke:
Q320
BT3904
1
-12V
4.7K
DSPVCC33
Please refer to the option value in [...]
3
Q323
BT3906
3
Value in [] is for external DAC.
Refer to Vaddis 6 solution.
2
2
DSPVCC33
D
+
R436
100K
MUTE_BIAS1
C401
R463
Value in [] is for external ADC.
4.75K 1%
[NM]
4.7K 1%
[NM]
C325
200pF 10%
[NM]
R383
4.7K 1%
[3.3K]
C321
180pF 10%
[1nF]
6
R380
R328
NM
[4.7K 1%]
R329
4.7K 1%
[0R]
18K
[0R]
5
4.7K 1%
[0R]
C326
33pF 5%
[NM]
R381
39K 1%
[0R]
39K [0]
6
7
5
+12V
C400
0.1uF
U309B
LM4558
R429
1K
[1K]
LMAIN-OUT
LMAIN-OUT
+12V
C323
0.1uF
3
U308 CE2632
R443
-12V
R438
7
8
APWM_L+
ADC circuit for Karaoke
MIC1
39K 1%
[NM]
33pF 5%
[150pF]
U301B
LM4558
C322
4
R320
4.7K 1%
[10K]
8
NM
[4.7K 1%]
4
R327
R462
R4
3.3K
100pF
R324
APWM_L-
+
R437
100K
MIC_VOCAL
-
R461
NM
[0R]
+
R5
3.3K
-
MIC_IN
MIC_VOCAL
2
R430
2K
+ C408
22uF/16V
AMCLK
12
ALRCLK
R447
MUTE
4
FMT
NOHPF
11
5
CAP
AGND
10
6
VCM
AVDD
9
DSPVCC33
8
LR IN
7
C419
14
RIN
LIN
R441
AMCLK
ALRCLK
10K
-12V
C410
R333
NM
[0.1uF]
APWM_R-
104
[0.1uF]
R337
NM
[4.7K 1%]
R464
4.7K 1%
[NM]
4.7K 1%
[NM]
R465
R330
4.7K 1%
[10K]
C335
200pF 10%
[1nF]
R386
4.7K 1%
[3.3K]
C331
180pF 10%
[1nF]
2
R339
4.7K 1%
[0R]
3
4.7K 1%
[0R]
C336
33pF 5%
[NM]
U301A
LM4558
1
R440
R434
39K [0]
2
18K
[0R]
3
U309A
LM4558
1
R385
39K 1%
[0R]
R435
1K
[1K]
RMAIN-OUT
+12V
MUTE
R439
C
C403
0.1uF
D302
1
2
IN4001
2
2
39K 1%
[NM]
33pF 5%
[150pF]
U305B
LM4558
4
C372
6
5
R379
R378
4.7K 1%
[0R]
R308
100K
1
C
R374 2.4K
[1K]
7
4.7K 1%
[0R]
C376
33pF 5%
[NM]
R302
39K 1%
[0R]
+12V
LFE-OUT
3
4.7K 1%
[NM]
Q322
BT3904
1
MUTE
+12V
R375 2K
1
Q317
BT3904
C363
0.1uF
2
APWM_LFE+
R301
4.7K 1%
[3.3K]
C371
180pF 10%
[1nF]
8
R377
D5V
2K
R373
R370
4.7K 1%
[10K]
C375
200pF 10%
[1nF]
+
4.7K 1%
[NM]
-
R376
APWM_LFE-
RMAIN-OUT
3
NM
[4.7K 1%]
C399 100pF
MIC2
8
R338
-12V
C334
0.1uF
8
APWM_R+
39K 1%
[NM]
33pF 5%
[150pF]
C332
R384
D301 IN4001
Q321
BT3904
1
2K
DSPVCC33
2
13
LRCK
DGND
2
+ C406
22uF/16V
MCK
BCK
4
104
[0.1uF]
SDO
3
4
C415
DVDD
2
+
R448 NM [4.7K]
1
-
R445 NM 0
+
ABCLK
ABCLK
-
DSPVCC33
A IN
AIN
DSPVCC33
3
Q303
1
S8550
470uF/10V
-12V
MUTE_CTL
R363
R360
4.7K 1%
[10K]
C365
200pF 10%
[1nF]
R367
MUTE_CTL
R311
10K
APWM_CEN+
4.7K 1%
[NM]
R303
4.7K 1%
[3.3K]
C361
180pF 10%
[1nF]
2
3
R369
R368
4.7K 1%
[0R]
118K 1%
[NM]
33pF 5%
[150pF]
C362
4.7K 1%
[0R]
C366
33pF 5%
[NM]
-12V
C374
0.1uF
U305A
LM4558
1
R364 2.4K
[1K]
CEN-OUT
MUTE
R365 2K
Q316
BT3904
1
R307
39K 1%
[0R]
2
4.7K 1%
[NM]
Q304
S8550
4
APWM_CEN-
MUTE
3
8
R312
10K
1
2
DSPVCC33
+
R366
100uF/16V
3
EC318
R318
10K
-
EC317
+
B
B
R343
5
R344 2.4K
[1K]
7
R315
39K 1%
[0R]
+12V
SL-OUT
MUTER345 2K 1
+12V
C343
0.1uF
-12V
R353
4.7K 1%
[NM]
2
3
R359
R358
4.7K 1%
[0R]
4.7K 1%
[0R]
C356
33pF 5%
[NM]
39K 1%
[NM]
33pF 5%
[150pF]
C352
U304A
LM4558
1
-12V
C354
0.1uF
R354 2.4K
[1K]
MUTER355 2K 1
R317
39K 1%
[0R]
SR-OUT
Q315
BT3904
8
R357
APWM_SR+
R316
4.7K 1%
[3.3K]
C351
180pF 10%
[1nF]
4
R350
4.7K 1%
[10K]
C355
200pF 10%
[1nF]
+
4.7K 1%
[NM]
-
R356
APWM_SR-
Q314
BT3904
2
4.7K 1%
[0R]
C346
33pF 5%
[NM]
3
6
R349
R348
4.7K 1%
[0R]
3
4.7K 1%
[NM]
C341
180pF 10%
[1nF]
2
APWM_SL+
39K 1%
[NM]
33pF 5%
[150pF]
U304B
LM4558
C342
8
R347
R310
4.7K 1%
[3.3K]
4
R340
4.7K 1%
[10K]
C345
200pF 10%
[1nF]
+
4.7K 1%
[NM]
-
R346
APWM_SL-
A
A
ZORAN Confidential
Title
DC0
Size
Document Number
Custom
Rev
30
Back End
Date:
5
4
3
2
Wednesday, June 28, 2006
1
Sheet
6
of
7
5
4
3
2
1
CN1
G ND
VSYNC
HS YNC
Y-R-V_OUT
G-Y_OUT
C-B-U_OUT
SCART_SWITCH
VSYNC
HSYNC
C520
1
2
3
4
5
6
7
+12V
LMAIN-OUT
RMAIN-OUT
TV
10
16:9
JR5
AUDIO 6CH
AUDIO/TV/16:9
C522
11pF
Y-R-V_OUT
1
Video Status
Y_R_V
Y_R_V
R510
1.5K
[NM]
2.0X4S
CN7
DUPRD0
1
2
3
4
CVBS_OUT
C521
160pF
R509
1.2K
[NM]
4:3
01
1.1uH
L502
1.1uH
Y-R-V_OUT
7
C523
160pF
COAX_SPDIF
2
C-B-U_OUT
3
D
3
1
2
3
4
5
G ND
L501
C511
150pF
SCART CFG
FS2 FS3
00
CN2
CVBS_OUT
AUDIO/TV/16:9
CVBS_C
CVBS_C
FS1: H=RGB L=CVBS
2.0X7S
D
11pF
FS2
1
2
+12V
-12V
Q501
BT3904
[NM]
C524
D5V
CVBS_G_Y
CVBS_G_Y
L503
11pF
1.1uH
G-Y_OUT
MIC_IN
3
C525
160pF
1
FS3
Q502
BT3904
[NM]
FS1
1
4
RMAIN-OUT
C526
Q503
BT3904
[NM]
2
DUPTD0
8
R514
150R
[NM]
3
2
MIC_PORT
C_B_U
C_B_U
L504
11pF
C539
100pF
1.1uH
C-B-U_OUT
C527
160pF
SCART_SWITCH
G-Y_OUT
5
RGB Status
9
R516
1K
CN503
D5V
C
GND
D5V
DAT
CLK
STB
IR
1
2
3
4
5
6
[NM]
SCART config circuit
6
LMAIN-OUT
C540
100pF
CN3
R501
10K
R502
10K
R503
10K
LMAIN-OUT
RMAIN-OUT
R504
2.2K
C538
100pF
VFD_PORT
FB515
FB512
FB513
FB514
220Z
220Z
220Z
220Z
7
6
5
4
3
2
1
SL-OUT
IRRCV
FPC_STB
FPC_CLK
FPC_DOUT
SR-OUT
C
2.0X7S
C537
100pF
CEN-OUT
C536
100pF
JR4
LFE-OUT
1
C535
100pF
MBW2012-221
FB502
MBW2012-221
M5V
RFA5V
R507
0R
D5V
+12V
CVBS_OUT
7
5
6
FB501
8
B
1
2
3
4
5
6
3
4
Note: R505 = 0R when using AM5888 LDO controller
PWR-CTRL
CN6
+5V
+5V
GND
GND
-12
+12
2
C-B-U_OUT
Y-R-V_OUT
JR3
OPTICAL
D5V
S-Video w/ RCA
-12V
OPTICAL_SPDIF
+
+
POWER
C554
10nF
+12V: +12V(+-10%)
-12V: -12V(+-10%)
+5V: +5V(+-2.5%)
+3.3V: +3.3V(+-2.5%)
C555
10nF
C556
10nF
C557
10nF
1
2
3
B
GND
VCC
SIG
EC530
47uF/16V
EC503
100uF/16V
R546
62R
OPTICAL_SPDIF
3
D5V
S/PDIF_OUT
S/PDIF_OUT
C509
0.1uF
Q505
1
2
BT3904
R547
0R
SERVO33
Close to Q505
DSPVCC33
R529
56R
+
EC505
220uF/10V
C542
220pF
C543
1nF
R544
C528
COAX_SPDIF
62R
R530
MARK1
.
39R
0.1uF
C510
1
22pF
A
A
DSPVCC18
MARK2
.
4
5
+ EC508
220uF/10V
MARK3
C544
220pF
C545
1nF
C546
0.1uF
ZORAN Confidential
.
3
2
1
4
5
Title
MARK4
DC0
Close to Regulator
.
H6
1
H5
1
9
8
7
6
3
2
1
9
8
7
6
4
5
4
5
9
8
7
6
3
2
1
9
8
7
6
3
2
1
H6
1
H5
Size
Document Number
Date:
Wednesday, June 28, 2006
R ev
30
Power, AV Output
5
4
3
2
1
Sheet
7
of
7
Repair of Decoder Board
ZORAN36966 decoder board service manual
Please check the power supply to decoder board is normal before checking the
decoder board.
一． Check the power supply voltage has the normal wave.
+5V，+12V，-12V.
二． Check reset circuit (reset at high electrical level)
三． Check crystal circuit (27MHz) and sdram frequency (108MHz)
Decoder board repair flow chart: (Diagram not included)
1.
Key invalid or led no display
Check socket and plug connection
N
Connect correctly
Y
With check KB board
Check CLK, DATA, STB wave out
N
Check ZR966 PIN131,132,133 short circuit
Y
Replace ZR36966
27
Repair of Decoder Board
2.
CVBS no output(audio/tray door normal)
Check the video cord connection
N
connect correctly
Y
Check video setup (software menu)
Y
N
Set to svideo
Y
Check L501 voltage between 1.0±0.2VPP
(use standard color band signal disc to test)
Y
N
Check whether L501 is damaged
Y
N
Check L501 connected with ZR36966 pin 151
Y
Check ZR36966 PIN151 output short circuit
Y
Replace IC ZR36966
28
replace it
Repair of Decoder Board
3.
YUV no output (Audio normal)
Check YUV port connected to TV correct
N
Connect YUV correctly
Y
Check video setup to YUV
N
Set to component
Y
Y
Check L502,L503,L504 voltage
between 0.7±0.14Vpp
N
Y
Check L502,L503,L504 are damaged
N
Check L502,L503,L504 connected with Pin152,
Pin154,P149.
N
N
Check ZR36966
short circuit
PIN152,Pin154,Pin149
N
Replace ZR36966 IC
29
Y
replace it
Repair of Decoder Board
4.
Karaoke no output
Check the microphone is ok?
N
replace it
Y
Check signal wire connect to decoder board correct?
N
Connect correctly
Y
Check whether R430,R459,R460 is damaged?
Y
replace it
N
Check whether U309 is damaged?
N
Replace U308(2632)
30
Y
replace it
Repair of Decoder Board
5.
No audio output
Check the audio cord connection
N
connect correctly
Y
Load 1K signal disc, check L/R CH with
sin-wave 5 .6V Vpp
N
Check “mute”signal is minus voltage
N
check mute
N
Check “APWM L/APWM R”with
Sin-wave signal
Y
Replace ZR36966
31
Y
replace U301
Repair of Decoder Board
6.
Servo initial work process
Power On
System initiated, ZR36966 reset and initiated,
wait for task
Tray door close?
Y
N
Close tray door
Pickup in inner circle?
Y
N
Pickup move outward
Machine initiated：ZR36966
Check disc
With disc
Auto adjust
Wait for order
32
Without disc
Repair of Decoder Board
7.
Check disc
Activate pickup
Focus loop move up
Focus loop move down
Disc check error
Y
Focus loop move up
Focus loop move down
Pickup LD off
Initiate auto adjust
Action repeat
33
N
Repair of Decoder Board
8.
Eject tray abnormal
(CVBS normal)
Check ZR36966
PIN125(OPEN),
PIN126(CLOSE)
Check “OPEN”, “CLOSE” signal level normal
(When open tray, “OPEN” should be high level,
“CLOSE” should be low level
Y
Check IC U202
N
Check “LOAD+”, “LOAD-“ voltage
larger than3.0V (connect multimeter black
pen to “LOAD-”, red pen to “LOAD+”
Y
Check loader wire connection with loader
Close tray abnormal (CVBS normal)
Check ZR36966
PIN125(OPEN),
PIN126(CLOSE)
N
Check “OPEN”, “CLOSE” signal level normal
(When open tray, “OPEN” should be low level,
“CLOSE” should be high level
Y
Check IC U202
N
Check “LOAD+”, “LOAD-“voltage larger
than3.0V (connect multimeter red pen to
“LOAD-”, black pen to “LOAD+”
Check loader wire connection with loader
34
Repair of key Board
KB BOARD SERVICE PROCEDURE
Power on
Led no display
N
Check decoder board and
kb board connection
N
Connect correctly
Y
Check whether KB board TW1618 is damaged?
N
Check other components
35
Y
Replace it
Package Diagram
36
System decomposition 3-D diagram
37
Main point waveforms of electronic components
Reference waveform of key test point of power board
TP1 27MHz XTAL
TP3 CVBS
TP2 SDRAM frequency 108MHz
TP4 AUDIO 1KHz
38