Download Memorex MT1130C Service manual
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Service Manual MT1130C 13” Color Television VOLUME CHANNEL DOWN UP DOWN UP POWER REMOTE SENSOR THIS SERVICE MANUAL IS FOR MT1130C SUFFIX A , B , C AND D CRT USAGE SUFFIX A SUFFIX B SUFFIX C SUFFIX D V451 5721-014ST37N (37GDA86X) 5721-37CN030T (370KSB22(SYB)) 5721-026TT37N (A34JFQ90X) 5721-030ZT37N (A34JXV70X) DY501 4993-117 4993-052 4993-110 4993-124 ( ADJUSTMENT BY REMOTE CONTROL ) ADJUSTMENT MODE The following adjustment items can be performed from menus by Remote Control as shown below : NOTE: The button combination and position on the Remote Control to select the adjustment items is given on page 4. 1. Press the SHIFT + ADJ. MODE buttons on the Remote Control simultaneously to bring up the adjustment mode menu screens shown below. 2. From the menu screen, press the + or - button on the Remote Control to select the item to be adjusted. 3. Press the MENU button on the Remote Control to enter adjustment mode for the item selected, and the display shown below appears : OR COLOR 32 RED CUTOFF 127 Example: 4. Use the + or - button on the Remote Control to adjust the data for the item selected. 5. When adjustment has been completed, press the SHIFT + ADJ. MODE buttons on the Remote Control simultaneously to return to the main menu. -3- REMOTE CONTROL LAYOUT VIDEO METHOD OF RECALL V-BLOCK PASS NUMBER If user forgets the V-Block Pass Number, call recall by the Service Remote Control or User Remote Control. 1. If use the Service Remote Control, at the Pass Number entry menu, while holding down [SHIFT] button and press the [Q.REV] button repeatedly four times. 2. If use the User Remote Control, at the Pass Number entry menu, while holding down [VOLUME DOWN] button on the TV set and press number [3] button on the remote control repeatedly four times. 3. The blinking “?” will be replaced with “!” after each press. 4. Release the [SHIFT] button or [VOLUME DOWN] button and then press [MENU] button. “VBLOCK SET” menu will be appearing on-screen with the user setting pass number. -4- IC, TRANSISTOR AND CRT COMPLEMENT INTEGRATED CIRCUITS IC101 TA87C-B6 IC102 CAT24CO4 IC301 TA1268N IC311 NJ7809FA Microcomputer EEPROM IF/Video/Chroma/Deflection Voltage Regulator IC501 AN5512 IC601 STR30130 IC671 NJ7805LD Vertical Deflection Output AVR Voltage Regulator and Reset Vertical Synchronizing Horizontal Synchronizing SD Signal Buffer SIF Signal Buffer Video Buffer Amplifier Video Out Service Mode Switching Red Color Driver Q452 2SC1473A(R) Q453 2SC1473A(R) Q551 2SC1473A(R) Q552 2SD 1 877 Q601 2SC945(P) Q801 2SC945(P) Q802 2SA950(0) Q803 2SC2120(0) Blue Color Driver Green Color Driver Horizontal Driver Horizontal Driver Power On/Off Relay Driver Audio Amplifier Audio Amplifier Audio Amplifier TRANSISTORS Q101 DTC143ZS Q102 2SC945(P) Q173 2SC945(P) Q301 2SC945(P) Q302 2SA733(P) Q303 2SC945(P) Q351 DTC143ZS Q451 2SC1473A(R) PICTURE TUBE V451 37GDA86X CRT (SUFFIX A) V451 370KSB22(SYB) CRT (SUFFIX B) V451 V451 A34JFQ90X A34JXV70X CRT (SUFFIX C) CRT (SUFFIX D) CHASSIS REMOVAL 1. 2. 3. 4. 5. 6. Remove 4 screws (183) from Cabinet Back (AB) and remove Cabinet Back from rear. Discharge anode lead at CRT chassis ground through a 10kohm resistor. Disconnect anode lead from CRT. Disconnect CRT Socket P.C. board (PCB-2) from CRT(V451). Disconnect 3 connectors (CN501 (DY501), CN601 (L601) and LCN801) from Main P.C. board (PCB-1). When replacing chassis, reverse the above procedure making certain that all leads are fastened in their original places. CRT REMOVAL CAUTION: Wear shatterproof goggles and exercise proper handling precautions when working around high vacuum picture tubes. 1. Remove chassis per instructions under CHASSIS REMOVAL. 2. Remove Convergence Magnet Assembly (MG451) from neck of CRT. 3. Remove Deflection Yoke (DY501) from neck of CRT 4. Remove 3 wedges (158) from CRT 5. Remove Degaussing Coil (L601) from CRT 6. Remove braid wire (331) and spring (157) from CRT 7. Lay cabinet face down on some protective material. 8. Remove 4 CRT mounting screws (174). 9. Remove CRT from Cabinet Front (AA). 10. To install new CRT, reverse above procedure. 11. Perform purity and convergence adjustments. -5- INSTALLATION AND SERVICE INSTRUCTION CAUTION: Use an isolation transformer when performing any service on this chassis. SHUTDOWN CIRCUIT: When the high voltage rises, there are simultaneous voltage increase developed at terminal 6 of the Horizontal Output Transformer ( T671 ) and applied to pin 29 of IC301. If excessive high voltage is produced, the increased voltage developed exceeds the rating of zener diode D552 causing the Horizontal Oscillator to stop functioning and the high voltage system to shut down. AFT ( AUTOMATIC FINE TUNING ) ADJUSTMENT 1. 2. 3. Connect TV Test Pattern Generator (NTSC signal, Monoscope signal, 70dBu, channel 2) to EXT. Antenna Terminal (TE1) through TV Channel Signal Generator. Connect wire (+) of DC Digital Voltmeter to TP6 and wire (-) to TP4. (Figure 1) Adjust T202 so that the DC Digital Voltmeter reading is 2.0V ± 0.1V. FIG. 1 SUB COLOR AND SUB TINT ADJUSTMENT 1. Connect TV Test Pattern Generator (NTSC signal, Color Bar signal, 70dB u , channel 6) to EXT. Antenna Terminal (TE1) through TV Channel Signal Generator. 2. Connect positive lead of Oscilloscope to TP14 and negative lead to TP10. 3. Set Tint control to center position. (by Remote Control). ( NOTE: For steps 4, 5 and 6 below, refer to page 3 for Adjustment By Remote Control Method). 4. Go to Adjustment Mode (1) by remote control. 5. Select SUB COLOR and SUB TINT from Adjustment Mode (1) menu screen. 6. Adjust SUB COLOR and SUB TINT level (by using + or - button on remote control) so that waveform 1 & 4 (for SUB COLOR) and waveform 2 & 3 (for SUB TINT) is the same as shown in Figure 2. FIG. 2 -6- SOUND IF ADJUSTMENT 1. 2. 3. Connect TV Test Pattern Generator (NTSC signal, 70dB u , channel 2) to EXT. Antenna Terminal (TE1) through TV Channel Signal Generator. (Standard modulation is 400Hz at 25kHz deviation for sound signal. Connect positive lead of DC Digital Voltmeter to TP7 and negative lead to TP9. Adjust T203 so that the DC Digital Voltmeter reading is 4.0V. COLOR PURITY ADJUSTMENT For best results, it is recommended that the purity adjustment be made in the final receiver location. If the receiver will be moved, perform this adjustment with it facing East. The receiver must have been operating 15 minutes prior to this procedure and the face plate of the CRT must be at room temperature. The following procedure is recommended while using a Dot/Bar Generator. 1. Check correct location of all neck components. ( Refer to Figure 3 ) 2. Rough -in the static convergence at the center of the CRT, as explained in the static convergence procedure. 3. Set the Contrast control to minimum position and Brightness control as far maximum as possible without causing the picture to “bloom”. 4. Apply green raster signal from Dot/Bar Generator to receiver. 5. Loosen the deflection yoke clamp screw and pull the deflection yoke toward the rear of the CRT. 6. Begin the following adjustment with the tabs on the round purity magnet rings set together. Slowly separate the two tabs while at the same time rotating them to adjust for a uniform green vertical band at the center of the CRT screen. 7. Carefully slide the deflection yoke forward to achieve green purity (Uniform green screen). NOTE: Center purity is obtained by adjusting the tabs on the round purity magnet rings. Outer edge purity is obtained by sliding the deflection yoke forward. 8. Check for red and blue field purity by applying red and blue raster signal alternately from Dot/Bar Generator to receiver. Repeat steps 2 through 7, if required. 9. Tighten deflection yoke clamp screw. 10. Perform BLACK AND WHITE ADJUSTMENT procedure. ( CW : clockwise, CCW : counterclockwise ) FIG. 3 -7- STATIC CONVERGENCE ADJUSTMENT ( Refer to Figure 3 and 4 ) IMPORTANT: Before proceeding, make sure the location of the convergence magnet assembly on the neck of the CRT is as shown in Figure 3. The rear edge of this assembly must be positioned 65 mm from the tip of the CRT base. If not properly positioned, convergence adjustment may be difficult, if not impossible. 1. Apply dot or crosshatch pattern from Dot/Bar Generator to receiver. Reduce setting of Brightness and/or Contrast controls to eliminate any blooming in pattern. 2. Observe the blue and red pattern appearing on the CRT screen. Locate the 4 pole magnet rings and separate their adjusting tabs approximately the width of one tab. 3. Now rotate this pair of magnet rings as a unit without re-adjusting the spacing between the tabs. This will minimize the separation between the blue and red dots (lines). 4. If the blue and red dots are not completely converged at this point, readjust the spacing between the two tabs to complete convergence of the blue and red dots (lines), thus producing magenta dots (lines). 5. If necessary, repeat step 2, 3 and 4 until proper convergence is achieved. 6. Observe the magenta (B/R) and green pattern now appearing on the CRT screen. 7. Locate the 6 pole magnet rings and separate their adjusting tabs approximately the width of one tab. 8. Rotate this pair of magnet rings as a unit without re-adjusting the spacing between the tabs. This will minimize the separation between the magenta (B/R) and green dots ( lines). 9. If the magenta and green dots (lines) are not completely converged at these points, readjust the spacing between the two tabs to complete convergence of the magenta and green dots (lines). 10. If necessary, repeat step 7, 8 and 9 until proper convergence is obtained. To prevent accidental mis-adjustment of the magnets, apply a stripe of paint across all six rings and onto the neck of the CRT. FIG. 4 DYNAMIC CONVERGENCE ADJUSTMENT ( Refer to Figure 5) Dynamic convergence (convergence of the three edges of the CRT screen) is accomplished by proper insertion and positioning of three rubber wedges between the edges of the deflection yoke and funnel of the CRT. This is accomplished in the following manner. 1. Turn the receiver ON and allow it to warm up for 15 minutes. 2. Apply crosshatch pattern from Dot/Bar Generator to receiver. Observe spacing between lines around edges of CRT screen. 3. For the misconvergence shown in Figure 5 ( A ), tilt the deflection yoke down and insert wedge A between deflection yoke and CRT. 4. For the misconvergence shown in Figure 5 ( B ), tilt the deflection yoke up and insert wedge B between deflection yoke and CRT. 5. For the misconvergence shown in Figure 5 ( C ), tilt left side of the deflection yoke and slightly insert wedge C between deflection yoke and CRT. Then, deeply insert wedges A and B between deflection yoke and CRT. 6. For the misconvergence shown in Figure 5 ( D ), tilt right side of the deflection yoke and deeply insert wedge C between deflection yoke and CRT. Then, slightly insert and/or extract wedges A and B between deflection yoke and CRT. 7. Alternately change spacing between and depth of insertion of the three wedges until proper dynamic convergence is obtained. 8. Use a strong adhesive tape to firmly secure each of the three rubber wedges to the funnel of the CRT. -8- GREEN RED BLUE GREEN BLUE RED WEDGE B RED GREEN BLUE WEDGE C RED GREEN BLUE WEDGE A DEFLECTION YOKE REAR VIEW (A) GREEN BLUE RED BLUE GREEN RED RED BLUE GREEN WEDGE A DEFLECTION YOKE REAR VIEW (C) GREEN RED BLUE WEDGE B WEDGE B BLUE GREEN RED WEDGE C BLUE GREEN RED RED GREEN BLUE (B) DEFLECTION YOKE REAR VIEW BLUE RED GREEN (D) WEDGE A DEFLECTION YOKE REAR VIEW Fig. 5 FOCUS ADJUSTMENT Adjust focus control, located on the Horizontal Output Transformer (T671), for maximum overall definition and fine picture detail with Brightness and Contrast controls set at normal viewing levels. BLACK AND WHITE ADJUSTMENT (CUTOFF / WHITE BALANCE) The purpose of this procedure is to adjust the bias applied to the color picture tube for reproducing a quality monochrome picture at all brightness levels and also to achieve maximum usable brightness. Confirm that proper purity and AGC adjustments have been completed before starting this adjustment. 1. Connect the TV test pattern generator (Monoscope pattern) to the EXT. antenna terminal via TV VHF/UHF signal generator (NTSC signal, 70dB u). 2. Select Cutoff Mode by remote control, (refer to page 4 for remote control key combination and position) and CUT OFF will be displayed on top-right screen for about 3 seconds. At the same time the data readings for Cutoff and Gain in Adjustment Mode (2) will become as follows: R CUTOFF: 50, G CUTOFF: 50, B CUTOFF: 50, G GAIN: 127, B GAIN: 127 3. Select Service Mode by remote control, (refer to page 4 for remote control key combination and position) and TV screen becomes horizontal line. 4. Turn the Screen control (located under the flyback transformer) clockwise until any blue, green or red color line appears. 5. Check the color of the line which appeared first, then turn the Screen control (located under the flyback transformer) fully counterclockwise. 6. Adjust the cutoff level of the color which appeared first by remote control, (refer to page 4 for remote control key combination and position) so that voltage between TP16 and TP15 (blue), TP14 (green) or TP13 (red) is 20 ± 1V. 7. Turn the Screen control (located under the flyback transformer) clockwise so that the bright color line can just be seen. 8. Adjust cutoff levels other than the above by remote control, (refer to page 4 for remote control key combination and position) so that the line color is white. 9. Press again Service Mode key by remote control, (refer to page 4 for remote control key combination and position) to return to TV position. Monoscope pattern will appear on TV screen. 10. Adjust the contrast and brightness controls to make the picture dim. Adjust the Green and Blue Cutoff levels by remote control, (refer to page 4 for remote control key combination and position) so that the picture is white. 11. Adjust the contrast and brightness controls to make the picture bright. Adjust the Green and Blue Gain levels by remote control, (refer to page 4 for remote control key combination and position) so that the picture is white. 12. Repeat steps 10 and 11 so that the picture is white in both dim and bright conditions. -9- HORIZONTAL PHASE ADJUSTMENT 1. Connect TV Test pattern Generator (NTSC signal 70dB u, Monoscope Pattern) to Antenna T erminal (TE) through TV Channel Generator. (NOTE: For steps 2, 3 and 4 below, refer to page 3 for Adjustment By Remote Control Method). 2. Go to Adjustment Mode (2) by remote control. 3. Select H. PHASE from Adjustment Mode (2) menu screen. 4. Adjust H. PHASE level (by using + or - button on remote control) so that horizontal reading of test pattern becomes the same value. VERTICAL PHASE ADJUSTMENT 1. Connect TV Test pattern Generator (NTSC signal 70dB u, Monoscope Pattern) to Antenna Terminal (TE) through TV Channel Generator. (NOTE: For steps 2, 3 and 4 below, refer to page 3 for Adjustment By Remote Control Method). 2. Go to Adjustment Mode (2) by remote control. 3. Select V. PHASE from Adjustment Mode (2) menu screen. 4. Adjust V. PHASE level (by using + or - button on remote control) so that vertical reading of test pattern becomes the same value. VERTICAL AMPLITUDE ADJUSTMENT 1. Connect TV Test pattern Generator (NTSC signal 70dB u, Monoscope Pattern) to Antenna Terminal (TE) through TV Channel Generator. (NOTE: For steps 2, 3 and 4 below, refer to page 3 for Adjustment By Remote Control Method). 2. Go to Adjustment Mode (2) by remote control. 3. Select V. AMP from Adjustment Mode (2) menu screen. 4. Adjust V. AMP level (by using + or - button on remote control) so that picture fills the picture opening from top to bottom and is proportionate to the width. RF AGC ADJUSTMENT 1. Connect TV Channel Signal Generator to Antenna Terminal (TE). 2. Connect positive lead of DC Digital Voltmeter to TP5 and negative lead of DC Digital Voltmeter to TP4. 3. Adjust level of TV Channel signal Generator so that the output level is 57dB u. (Monoscope Pattern) (NOTE: For steps 4, 5 and 6 below, refer to page 3 for Adjustment By Remote Control Method). 4. Go to Adjustment Mode (2) by remote control. 5. Select RF AGC from Adjustment Mode (2) menu screen. 6. Adjust RF AGC level (by using + or - button on remote control) so that the DC Digital Voltmeter reading is 6.0V ± 0.2V. SUB BRIGHTNESS ADJUSTMENT 1. Connect TV Test Pattern Generator (NTSC signal, Color Bar Signal, 70dB u) to EXT. Antenna Terminal through TV Channel Signal Generator. (NOTE: For steps 3, 4 and 5 below, refer to page 3 for Adjustment By Remote Control Method). 2. Go to Adjustment Mode (1) by remote control. 3. Set the COLOR and CONTRAST of the TV set to minimum and the SUB CONTRAST and SUB BRIGHT to '0' (using + or - button on remote control). 4. Adjust SUB BRIGHT level (by using + or - button on remote control) to obtain a dim pattern. (Refer to Fig.6) DIM LIGHT Fig. 6 - 10 - TEST POINT - 11 - VOLTAGE CHART ( all in volts ) OPERATION CONDITION : IC101 IC102 IC301 IC311 IC501 IC601 IC671 Q101 Q102 Q173 Q301 Q302 Q303 Q351 Q451 Q452 TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt TERMINAL No Volt B Volt 0.1 -0.7 -0.1 3.9 1.5 1.6 0.0 2.5 2.3 1 4.9 11 0.0 21 0.0 31 2.1 41 0.7 1 0.0 1 0.0 11 6.3 21 2.3 31 0.7 41 3.1 51 0.0 1 12.1 1 0.0 1 0.0 1 10.3 E Volt 0.0 0.0 0.0 3.3 2.1 1.0 0.0 2.3 2.2 TINT, BRIGHT and COLOR CONTROL……….. CENTER CONTRAST ………………………………………. MAXIMUM COLOR BAR SIGNAL 2 3 4 5 6 7 8 0.0 0.0 0.0 5.0 5.0 5.0 0.0 12 13 14 15 16 17 18 0.0 5.0 5.0 5.0 2.3 0.0 0.0 22 23 24 25 26 27 28 0.0 0.0 0.0 0.0 3.9 4.7 4.9 32 33 34 35 36 37 38 2.3 5.0 0.0 5.0 4.5 3.1 2.0 42 5.0 2 3 4 5 6 7 8 0.0 0.0 0.0 2.0 3.1 0.0 5.0 2 3 4 5 6 7 8 3.8 3.0 0.0 4.6 0.0 2.0 0.7 12 13 14 15 16 17 18 4.8 0.0 0.0 4.8 4.8 4.8 3.3 22 23 24 25 26 27 28 0.8 5.1 5.2 5.6 8.3 3.0 2.0 32 33 34 35 36 37 38 1.2 6.9 5.4 0.0 2.8 3.2 3.1 42 43 44 45 46 47 48 4.9 4.7 2.4 2.0 9.0 4.0 9.0 52 53 54 55 56 0.0 2.8 5.2 5.8 0.0 2 3 0.0 9.0 2 3 4 5 6 7 8 12.5 0.0 24.2 13.7 0.7 -0.3 1.2 2 3 4 5 131.0 160.0 131.0 0.0 2 3 4 5 6 7 8 0.0 5.5 0.0 0.0 5.0 0.0 5.0 C Volt 4.7 3.9 4.5 9.0 0.0 9.0 9.0 122.6 129.3 Q453 Q551 Q552 Q601 Q801 Q802 Q803 - 12 - B Volt 2.3 0.3 -0.2 0.7 0.6 6.7 8.0 E Volt 2.2 0.0 0.0 0.0 0.0 7.4 7.4 9 0.0 19 0.6 29 4.9 39 0.0 10 0.6 20 0.7 30 0.0 40 0.7 9 9.0 19 2.6 29 2.1 39 3.0 49 8.4 10 4.4 20 2.5 30 1.0 40 6.3 50 8.2 9 23.8 C Volt 132.0 126.0 0.1 6.7 0.0 16.0 CHASSIS WAVEFORM - 13 - SCHEMATIC DIAGRAM PCB2 CRT C130 100p 31 30 C556 10 /50V R555 15k 32 CONTRAST TINT C451 470p B C455 1000p /500V D681 1F4-E 26 R192 1k 27 28 3 9V 1 2 IN Q551 2SC1473A (R) R558 330 D607 1SS133 IC311 NJ7809FA VOLTAGE REGULATOR R559 330 WF-9 C557 680p /500V R804 10k D559 RD9R1ES2 C553 0.01 ZF C554 100 /16V Q552 2SD1877 ! ! TE 1 C803 2200p R802 10k D802 1SS133 Q801 2SC945 (P) R810 2.2 C805 0.1 C682 2200 /6.3V 6 C681 0.1 MYL 3 2 4 ! 5 R603 270 10W ! CEM R604 12k 1/4W R605 330k 1/4W RESET CD 4 C608 22 /160V G 5 3 CRITICAL COMPONENTS C678 100 /25V RELIABLE AND PERFORMANCE FOR CONTINUED RELIABILITY AND PERFORMANCE EXACT FACTORY REPLACEMENTS ARE RECOMMENDED FOR ALL OTHER PARTS REPLACED. IF A SUBSTITUTE MUST BE USED BE SURE ITS QUALITY AND SPECIFICATIONS ARE IDENTICAL TO THEORIGINAL PART. 4. R334 R333 120k 1/2W 120k 1/2W 4 2 1 ! ! P1 AC120V 60HZ ! R611 680 1/2W D605 RD12ES2 SAFETY REQUIREMENTS COMPONENTS IN ACCORDANCE WITH PRESENT SAFETY REGULATIONS. THESE COMPONENTS. MOST ONLY BE REPLACED BY ORIGINAL PARTS. 16 TH601 ! ! D603 R610 1N4002E 1.8k 5W CEM C616 0.01 /250V SCHEMATIC DIAGRAM NOTES: 1. ALL RESISTANCE VALUES ARE IN . k = 1000 . M = 1000k . 2. THE WATTAGE OF RESISTORS ARE 1/8W UNLESS OTHERWISE NOTED. 3. ALL CAPACITANCE VALUES ARE IN uF UNLESS OTFHERWISE NOTED. p = pF = u u F. 3 RL601 ! RELAY 1 THE DESIGN OF RECEIVER CONTAINS MANY CIRCUITS AND COMPONENTS INCLUDED SPECIFICALLY FOR SAFETY PURPOSES. FOR CONTINUED PROTECTION. NO CHANGES SHOULD BE MADE TO THE ORIGINAL DESIGN AND COMPONENTS SHOWN IN ! ON THE SCHEMATIC SHOULD BE REPLACED WITH EXACT FACTORY REPLACEMENT PARTS. THE USE OF UNAUTHORIZED SUBSTITUTE PARTS MAY CREATE A SHOCKFIRE X-RAY RADIATION OR OTHER HAZARD. SERVICE SHOULD BE PERFORMED BY QUALIFIED PERSONNEL ONLY. ! ! L602 FILTER C605 0.01 /250V KH Q601 2SC945 (P) R607 4.7k SAFETY CRITICAL DEVICE SAFETY ! C604 0.01 /250V KH ! FU601 4A /125V RESET OUTPUT Q802 2SA950 (O) ! 7 2 ! D601 RS104 ! R601 2.7 5W MTL C607 470 /200V SP801 8 OHM SPEAKER F. BACK ROUT 8 VIN CN801 VOUT C804 220 /16V ERROR START V R606 47 1/4W 1 ! PROTECT R809 2.2 1/6W R801 C801 470 4.7 /50V IC671 NJ7805LD ! LCN801 TP2 8 C609 33 /160V C614 0.01 /250V KH ! R812 10 1/2W C806 1000 /16V R807 150 C802 47 /16V D8 HZT33 TUNER R808 1 1/6W R803 1k VHF/UHF/CATV D801 1SS133 R806 150 2 TP1 130V R615 D606 47 1/4W 1S2473 IF G R674 1.8k 1W MTL 33V C8 22 /50V ! TU1 UHV/VHF 75 BT 1 R613 4.7k 2W MTL 5V BP D671 1F4-E F S 3 R561 3.3k 5W CEM R612 4.7k 2W MTL R381 820 1/2W 6 4 C671 3300p /400V FB551 R562 C558 0.5 560p /500V T552 1/2W 3 4 1 R672 2.2 1W D672 1F4-E ! R671 C675 1000 2.2 1/4W /25V WF-8 OUT C664 100 /16V 25 R614 680 1/4W 24 R191 1k 23 R518 27k 1/6W G 22 R351 220 C346 100p B C345 100p B C344 100p B 21 C552 2.2 /50V 20 C1 10 /50V R1 220 1/4W C7 330 /16V R151 1k 1/4W R4 180k C4 4.7 /50V R152 1k 1/4W BM C676 1000 /25V H.VCC 19 C501 2.2 /50V R350 470 18 6 5 7 C672 3300p /400V 11V IC601 ! STR30130 SDA R453 15k 1W MTL C683 0.01/400V BUS R321 220 17 D310 1SS133 16 R319 220 X301 3.58MHz 15 R R322 3.3k 14 9 160V 15V 3.3V 13 C322 0.47 /50V Q803 2SC2120 (O) C673 ! 3300p R673 /400V 2.2 1/4W D673 1F4-E VC/D V. RAMP ! T671 HORIZONTAL OUTPUT HV R509 1.5 1/4W WF-3 C510 3.3 /50V B GND ! 29 AFC2 V-SEP. CUTOFF ANALOG RGB C210 C208 0.01 0.47 ZF /50V R805 470 C509 2.2 /50V L.L R508 33k R510 5.6k MATRIX 12 Q351 DTC143ZS C508 1000 /25V R507 56k H-SEP. BRIGHT LPF C505 0.1 MYL C504 470p B R501 1k R563 330 2W MTL 7 C512 100p B C503 0.033 MYL X-RAY AFC1 8 HC/D WPL DEMO D309 1SS133 11 32fH VCO WF-6 R463 3.3 ! 1W CEM FUSE R675 1M R336 2.2k C555 10 /50V D301 1S2473 R335 C304 0.01 68k 1/6W D303 1S2473 R340 1M R302 1.8k R329 5.6k 33 2 D554 R557 1SS133 1k D552 RD6R8ES2 R554 47k R330 220k 1/6W Q302 2SA733 (P) R391 C391 75k 1/50V R570 390 34 D555 3.3V C380 1/50V 10 R123 C220 390 2200p B R212 10k 35 SHARP R341 820 9 TP4 GND 36 D553 1SS133 5 H.RAMP SMOOTH B VCXO C209 47 /16V SF201 45.75MHz 37 C551 0.01 ZF H-OUT APC PIF VCC 8 38 Y-DL C381 0.01ZF SW C206 1000p B TP3 IF R308 1k ACC KILL 7 39 C305 1 /50V 9 FLYBACK GENERATOR R505 470 1/4W PULSE SHAPER 1 TP11 X-RAY R556 5.6k D311 1SS133 1 DET COLOR 6 40 R331 180k 1/6W 4 OUTPUT STAGE WF-4 H. VCC C562 1 /50V R551 2.2k 1/4W X551 503KHz BLACK STRETING WPS 3.58 TRAP DC REST AFT C211 4.7 /50V 5 T203 C221 0.01 ZF 4 41 R320 220 90 PIF GND 3 42 CLAMP LOCK LOCK DET DET 2 43 C331 0.01 D302 1SS133 3 DRIVER STAGE 6 C506 100/25V D315 1SS133 44 R303 1.8k 1/4W R307 330 R305 3.3k C303 0.1 MYL C214 0.01 ZF 45 BPF Q DET 1 R361 1k R214 56k 46 C315 2.2 /50V R503 100 1/4W D501 1N4002E VCC RF AGC S105 VOL-DOWN 1000p MYL C361 47 R R134 12k 48 SIF VCC LIMIT IC301 TA1268N R133 5.6k FM DET 49 VCO C306 0.1 MYL C343 0.1 /50V 50 C342 0.1 /50V 51 SIF GND G 52 R328 2.2k C308 10 /50V R342 820 53 C341 0.1 /50V 54 R343 820 55 D308 1S2473 56 R362 39K GND TP9 R344 10k VSS 4 T202 VCO C362 100p D312 1SS133 SDA 3 C212 4.7 50V C231 0.01 ZF WC SCL 2 E2 E1 E0 R132 3.3k 1 C213 4700p B C317 0.01 C319 10p CH VCC CF201 L203 4.5MHz 22uH TP7 BPF SIF C320 0.022 ZF 5 C232 47 /16V R301 1.8k 6 C318 47 /16V L361 5.6uH C218 47p CH R220 1k 7 CF301 4.5MHz TRAP Q301 2SC945 (P) 3 WF-1 IC501 AN5512 VERTICAL DEFLECTION OUTPUT C601 0.1 /AC125V R110 22k R131 3.3k S101 POWER 8 IC102 M24C02 S102 CH-UP Q303 2SC945 (P) VIDEO TP8 3 2 2 S103 CH-DOWN R127 270k 1/4W R129 10k R179 18k 1/4W R176 10K 1/4w L301 15 uH R306 330 1 SCL JL102A D561 1F4-E C507 0.047 MYL WF-5 R218 1k AGC JL102 CN501 R116 1k C217 47p CH S104 VOL-UP ! DY501 VERTICAL HORIZONTAL DEFLECTION YOKE WF-7 R105 1k 1 R3 10k JL102B R332 1k 1/4W 21 1 C326 1 /250V 20 3 C611 1000 /25V ! ! D602 1N4004E C602 0.01 /250V KH ! L601 DEGAUSSING 19 4 CN601 18 4551-2011602D WF-2 5 R178 56k TP6 AFT R113 10k R112 22k R114 1k R105 1k 17 GND R181 33k R177 33k 6 R461 R462 330 1.5k 1/6W 1/4W R459 R460 330 1.5k 1/6W 1/6W C674 10 /250V 16 7 C560 0.39 /200W 15 TP10 8 C454 1000p /2kV 24V 14 JL101 Q453 1473A (R) GREEN C561 680p/2KV C559 4300p 1.6kV 13 D306 1SS133 R458 1.5k 1/4W C511 100 /25V 12 Q173 2SC945 (P) R180 68k 1/6W 9V 9V R137 15k C129 100p B R457 330 1/6W ! V451 CRT 9 TP14 Q452 1473A (R) BLUE R504 15k 11 C177 270p Q101 DTC143ZS C127 1000p B R519 56k 1/6W 10 R 9 POWER 8 B 7 OSD CONT 2 6 OSD CONT 1 5 22 G R120 1k R121 5.6k 1/4W BLK R122 B 5.6k 1/4W R123 G 5.6k 1/4W R124 R 5.6k 1/4W BLK 4 23 ADJ MODE 3 HD-OSD 3 24 NC 2 TP5 AGC R136 100k C109 R119 1k 1/4W 8.2p CH AFC VD-OSD OSC2 MENU COLOR TEST OSC1 KEY IN XIN VCHIP SEL XOUT 1 R106 22k MAIN/SAP GND RESET L101 47uH X101 8MHz C103 4.7/50V 25 TV/VIDEO 26 REMOTE 27 NC 28 LANGUAGE SCL 29 H. SYNC 30 SERVICE 31 ST/MONO 32 POWER IN 33 V-BLOCK SDA C112 680pB C111 680pB C102 0.1 GND 34 NC 35 VCC C101 0.1 36 VIDEO INPUT 37 V-SYS 38 VIDEO INPUT 39 GND 40 Q102 2SC945 (P) NC 41 C106 30p CH C104 27p CH C105 27p CH R102 4.7k R101 4.7k C108 0.022 ZF C107 100 /10V IC101 TMPA8700CPN U-COM 42 5V Q451 1473A (R) RED JL101B 5P R G B JL101A 5P R G B ! SU451 R473 220 C126 560p B R456 2.7k 1/4W R455 2.7k 1/4W C453 470p B R126 22k R128 2.2k 1/6W 5V R104 100 R454 2.7k 1/4W TP15 TP13 R472 220 GND R146 1 k R103 100 R452 15k 1W MTL RX101 REMOTE SENSOR VCC R471 220 VOUT C180 100p B TP16 R451 15k 1W MTL R142 1k 1/4W C452 470p B 4551-2011601D C606 0.01 /250V PCB1 MAIN