Download HCD-DP1000D

HCD-DP1000D
Ver 1.7 2003.02
SECTION 6
DIAGRAMS
Oscilloscope
DVD SECTION
RE-ADJUSTMENT OF THE SERVO CIRCUIT
The re-adjustment of the servo circuit is necessary
when the part which relates to the servo circuit is
replaced.
Referring to ”4-9. DRIVE AUTO ADJUSTMENT”
(SUPPLEMENT-1 see page 6), Choose ALL and do
the re-adjustment of each item of DVD-SL, CD and
DVD-DL.
THE PART THAT THE RE-ADJUSTMENT OF THE
SERVO CIRCUIT IS NECESSARY
11. Optical pick-up
12. RF AMP (IC001)
13. DSP IC (IC302)
14. Motor driver IC (IC401)
15. EEPROM (IC303)
set
75 Ω
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
G
J602
S-VIDEO OUTPUT
Procedure:
1. Connect oscilloscope to S-VIDEO out. (S-Y teminal)
2. Load a disc (HLX-504 or HL-505) playback.
Note:
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part
number specified.
3. Confirm that the S-Y level is 1.0 ± 0.1Vp-p.
Note :
1. DVD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use HLX-504 (J-6090-088-A) or HLX-505 (J-6090-089-A)
unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specified.
f
: internal component.
•
• 5 : fusible resistor.
• C : panel designation.
G
1.0 ± 0.1 Vp-p
•
•
•
•
•
4. Connect oscilloscope to S-VIDEO output. (S-C teminal)
5. Connect that the S-C burst is 286 ± 50mVp-p.
Video Level Adjustment (MB BOARD)
Purpose
This adjustment is made to satisfy the NTSC standard, and if not
adjusted correctly, the brightness will be too large or small.
•
•
•
286 ± 80 mVp-p
Oscilloscope
75 Ω
Adjustment Location
set
•
MB BOARD (SIDE A)
J601
VIDEO OUTPUT
CN011
Procedure:
1. Connect oscilloscope to VIDEO output.
2. Load a disc (HLX-504 or HL-505) playback.
3. Adjust the RV501 to attain 1.0±0.1Vp-p.
A : B+ Line.
B : B– Line.
H : adjustment for repair.
Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
Circled numbers refer to waveforms.
Signal path.
F : FM
f : AM
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
c : digital out
g : MD (VIDEO)
Abbreviation
CND : Canadian model
EA
: Saudi Arabia model
MY
: Malaysia model
SP
: Singapore model
TH
: Thai model
MX
: Mexican model
E91 : 220V AC area model
AUS : Australian model
1.0 ± 0.1 Vp-p
(WHITE 75%)
S-terminal Output Check
Purpose
Check S-video output.
RV501
VIDEO LEVEL
Adjustment
IC103
IC503
CN008
CN404
CN103
21
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
21
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
C
These are omitted.
Q
B E
Q
B
C
E
These are omitted.