_) CX-34G3 CX-51 G3 SHARP SERVICE MANUAL SX7i2CX-51 G31 COLOUR TELEVISION Chassis No. SP-67 CX-34G3 CX-51 G3 MODELS CX-34G3 CX-51 G3 In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.
SPECIFICATIONS IMPORTANT SERVICE NOTES Convergence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self Converging System Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quadra-Potential Electrostatic Sweep Deflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTMENT PRECAUTIONS n SERVICE MODE (1) Press the specific keys to change the modes as follows. This model’s settings are adjusted in two different ways: through the PC bus control and in the conventional analog manner. The adjustment via the PC bus control includes preset-only items and variable data. COLOUR ADJUST mode 1.
l 4 4 SUB CONT+ST (SUB CON) V-AMP 60 Hi (V-AMPGO) Y DELAY PA/- (DT PAL TV/AV) SUB BRIGHi (SUB BRI) V-LINE 60 H; (V-LINEGO) SUB COLO”p (SUB COL) VS-CORRECT 60 Hz 4 V-PHASE 60 Hz (V-CENTERGO) 4 H-PHASE 60 Hz (H-CENTERGO) 4 V-BLK STABT 60 Hz (V-BLK ST60) Y DELAY SECAM (DT SECAM TV/AV) 4 Y DELAY N;SC (DT NTSC TVIAV) SUB SUBTIY ( SUB TIN) SUB SHAFtTESS (SUB SHARP) Y-SUB CONTRAST (Y SUB CON) Y DELAY BtW (DT BW TVIAV) 4 VIDEO MUT; ON/OFF (V-MUTE) VIDEO 2 ON/OFF (AV2) (DELAY AN effective in AN mode) t
l 3 : When the ICI001 is RH-iX2938CEZZ/Nl, change the NVM data from 00 to 01 (address 198H). For the RHiX2938CEN2 and the following ICs, there is no need to change this data (as from the July 1997 production). ‘4 : Only 0 through 5 must be used in changing the data. FACTORY SETTING (1) The following key-in data have been factory-set for the E2PROM. INITIAL SETTINGS OF CHANNEL SELECTION DATA (1) Make an entry of MCLI in the service mode in order to set the following channel selection data to the E2PROM.
PIF/AFT/AGC ADJUSTMENT 115V ADJUSTMENT Adjusting point 115v adjustment: R71l Adjusting procedure/conditions Waveform and others 1. Receive the E-5CH (monoscope pattern) signal. 2. Using the remote controller, call the P-NORM mode. 3. Connect a beam ammeter between TP602 and TP603. 0 Ammeter’s full-scale : 3 mA range l Ammeter’s positive (+) lead : TP603 l Ammeter’s negative (-) lead : TP602 4.
PURITY ADJUSTMENT rlo. j Adiustins point j Adiusting procedure/conditions Purity adjustment 1. Using the remote controller, make the screen colour green-only. Adjust the contrast control to have a beam current of about 500 f.tA (14”)/700 pA (21”). 2. Degauss the cathode ray tube enough with the degaussing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field. Vertical Bv : +0.030 mT (0.30 gauss) Horizontal Bh : +0.020 mT (0.20 gauss) See page 10. 3.
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT So. Adjusting point 1 00 CRT cut-off service mode: 12C bus data adjustment Adjusting procedure/conditions 1. Receive the E-5CH (monoscope pattern) signal. 2. Using the remote controller, call up the P-NORM mode. 3. Turn on the service switch and select the cut-off/ background mode. 4. Set the screen control to O/10 position. 5. Press the “9” key on the remote controller to reach the horizontal centering mode. 6.
PAL CHROMA ADJUSTMENT HORIZONTAL AND VERTICAL CIRCUIT ADJUSTMENT lo. 1 Adlustina ooint 1 Adiustina orocedurekonditions V-AMP 50 1. Adjust the overscan to 9% (E-5). V-LINEARITY 50 Hz 1. Adjust to get the best linearity. V-S CORRECTION - 50 Hz 1. Preset (readjust if the linearity is poor). V-SHIFT 50 (VCENTER) 1. Align the screen center with the cathode ray tube’s geometrical center (E-5). H-SHIFT (50) (H-CENTER) 1. Align the screen center with the cathode ray tube’s geometrical center (E-5).
PROTECTOR PERFORMANCE CHECK SECAM CHROMA ADJUSTMENT lo. Adjusting point Adjusting procedure/conditions 1 SECAM b l a c k level (R-Y/B-Y) adjustment: 1% bus adjustment 1. Receive the Oi-5CH (SECAM colour bar) signal. 2. Call the SECAM black level adjustment R-Y mode. 3. Connect the oscilloscope to pin (34)(R-Y OUT, TP802) of IC801. l Range : 10 mV/div. l Sweep time : 20 psec/div. (Use a 10 : 1 probe.) 4. Adjust the R-Y data so that the offset between the no-signal line and the signal line be minimum.
FUNCTION CHECK (VIDEO AND AUDIO) 1 CONTRAST key 1. Receive the E-5CH signal. 2. Select the contrast on the P-MODE screen. 3. The contrast must be changeable with the UP/ DOWN key. 2 COLOUR key I. Receive the E-12CH signal. 2. Select the colour on the P-MODE screen. 3. The colour must be changeable with the UP/ DOWN key. 3 I. Receive the E-5CH signal. 2. Select the brightness on the P-MODE screen. 3. The black level must be changeable with the UP/ DOWN key. BRIGHTNESS key 4 TINT key 5 PIC-NOR.
MEMORY MAP (RH-iX2938) DATA SUB DDRESS 7 1 I 6 1I 5 1I 4 1 R- I 003 II I 004 II t ii& I 006 1 007 II I 008 I I t t t 7- 012 1 013 I PLL d a t a (i PLL data (lower) 017 018 019 OIA fl1B OlC OlD OlE OlF 020 021 022 023 024 025 026 027 028 029 02A 028 02c 02D 02E 02F PLL data (lower) PLL data (upper) PLL data iIower) PLL data (upper) PLL data il&eri \ PLL data (uppe;) PLL data (lower) PLL d a t a Jeer) (I PLL data (lowerj PLL data &De;) PLL data ildwerj PLL data (upper) PLL data (lower) PLL
FACTORY SETTING SUB ADDRESS 090 091 092 093 094 095 096 097 098 7 1 6 1 lzF= 09B 09c 09D 09E 09F OAO OAl OA2 OA3 OA4 OA5 OA6 OA7 OA8 OA9 OAA OAD 1 OAE I 6 DATA ’ - ’ - ’ * ’ n 1 4 131211JU PLL dz ata (upper) PLL dz ata (lower) PLL di ata (upper) PLL dista (lower) PLL diata (upper) PLL diata (lower) PLL dsata (upper) PLL dsata (lower) PLL data (upper) PLL d PLL d PLL d PLL d PLL dlata (lower) PLL dlata (upper) PLL dlata (lower) PLL clata (upper) PLL clata (lower) PLL clata (upper) PLL ctata (lower)
I SUB . ~- I DATA 1 j I 110 2 4 PLL data (upper) PLL data Ilower\ t --.-‘I PLL data (upper) PLL data (lower) PLL data (upper) PLL data (lower1 1 PLL data (upper) I PCL . , data (lower1 \ -.--.
DATA SUB ADDRESS 7 130 131 132 133 1 6 AUDIO AUDIO AUDIO AUDIO 5 4 SYSTEM SYSTEM SYSTEM SYSTEM I 15F 3 2 VIDEO VIDEO VIDEO VIDEO I 1 AUDIO SYSTEM CH4B CH49 CH50 CH51 1 1 VIDEOSYSTEM FACTORY SETTING CRITERIA REMARKS 1 0 SYSTEM SYSTEM SYSTEM SYSTEM 1 ‘iHi I 1 I I
i DATA SUB 1 7 160 161 162 163 164 165 166 167 168 169 1 6 1 5 1 AUDIO SYSTEM AUDIO SYSTEM AUDIO SYSTEM AUDIO SYSTEM AUDIO SYSTEM 4 1 I 3 1 2 VIDEO VIDEO VIDEO VIDEO VIDEO 1 1 1 SYSTEM SYSTEM SYSTEM SYSTEM SYSTEM 0 I REMARKS CRITERIA I CH96 CH97 CH98 CH99 A/V MODE cArrfiay DATA SUB .
TROUBLE SHOOTING TABLE (Continued) TROUBLE SHOOTING TABLE NO RASTER CIRCUITS TO BE CHECKED: Tuner. PIF. l Automatic Gain Control. l (W), (9V) Power Source. NO PICTURE, NO SOUN l l I Check F701. t I Blown out. Replace the fuse. I I No snow noise. received. 1 Abnormal 1 I Check pin (1) of T701 voltage (Approx. 31 OV at 220V AC) I I ‘-i ir’ Abnormal 1 Normal Main+B i-i ___--------_ 1 Check C707, D701,0702, ; 1 --------------_I D703 and 0704.
TROUBLE SHOOTING TABLE (Continued) TROUBLE SHOOTING TABLE (Continued) NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION ( NO SPECIFIC COiOU$ NO CIRCUIT TO BE CHECKED: l Sync. Separator Circuit. 3,..--------------_ I Check IC801 and Q401. I I Is some colour produced in BNJ broadcast reception ? YES I + - - - - - - -* ---_-__ ,yEs I s t h e w h i t e b a l a n c e p r o p e r l y adjusted ? i Check IC801, R809, R810, i , R811, D801, D802, D803, 1 ; I Q801, Q802, Q803,Q804 : and Q805.
SOLID STATE DEVICE BASE DIAGRAM TOP VIEW 56 8 - 5 16 a l-4 1 8 ST24C04 29 9 1 ix1 779CE 1 28 ix2938 TB1226 11 BA7357S SIDE VIEW Ii Ii IL t-BASE COLLECTOR !- EMITTER 2SA1015 2SC1815 2SC1906 1 - BASE L COLLECTOR I EMllTER 2sc2229 2SC2482 123 3 2 1 KiA7045P TA78L09 UPC78LO5 R L L CATHODE ANODE iX0037CE TA7348P 1 7 1 9 1 2 3 B C 2582586 2SD1877 E B C iX0640CE E 2SD1884 KA7809 KA7805 PX0003PE 19 TDA7056A
i . ‘. CX-34G3 CX-51 G3 MODEL CX-34G3 CHASSIS LAYOUT s1003 VOL-UP 3403 vrncn ..“-- . .IM. 3402 AV UNIT *,,nrn . .1t.l. ,._.,.” l-“-I-TAWM -.. s’oo4 “.,.... l-G% ,“I ““..I, SlOOl PRE-SET s1005 CH-UP I r / II /II, 1 2 MAIN UNIT RMClOOl CFlOOl ICI003 if=! ICI002 PBO4 Q607 OQBOI 0 8 PBOS OQB03 I C60.
CX-34G3 CX-51 G3 MODELCX-51 G3 CHASSIS LAYOUT s1003 VOL-UP 51004 CH-DOWN 5402 J403 51005 CH-UP Y-l I I7 a RMClOOl PRE-SET ’ q ' ' D1013 CFlOOl IC1002 4804 g OQBOl cl805 ow303 0 QEO2 0 a301 E S1006 NOR SEVON 1 I VIDEO INI A UD I O IN 1 VIDEO OUT CRT UNIT 1 PWB-B 1 2 3 :I 1 1 I 2 I 3 I 21 4 I 5 I 6 1
.. ‘. CX-34G3 CX-51 G3 WAVEFORMS IO1 2.0 VP-p (H) -1 A- I 1 2 1.3 Vp-p (H) IO ,,L..L 3 1.5 Vp-p (H) IO l 4o 3.0 Vp-p (H) n -7Ttt=w II7 I I t I @ 0.8 VP-p (I-i) 0 1.8 Vp-p (H) I @ 140 VP-p (H) (CX-34G3) 145 Vp-p (H) (CX-51 G3) I 0 9% VP-p (I-i) @? 150 Vp-p (H) (CX-34G3) 1000 Vp-p (H) (CX-51 G3) 22 IO 19 520 Vp-p (H) IO5 3.
CX-34G3 CX-51 G3 n Tuner ,t&VTki~ST§WD64/ NOTE: The parts here shown are supplied as an assembly but not independently. n Infrared Remote Control Unit RRMCGI 342PESA NOTE: The parts here shown are supplied as an assembly but not independently. . 03001 2SC3203Y DxDl -191.
DESCR~P‘TION OF SCHEMATIC DIAGRAM SAFETY NOTES: NOTES: 1. DISCONNECT THEAc PLUG FROM THEAC OUTLET BEFORE REPLWING PARTS . 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENT/AL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING. 7. The unit of resistance ‘ohm” is omitted. (K = 1000 ohms, M = Meg ohm). 2. All resisfors are I/B watt, unless otherwise noted. 3. All capacitors are pF; unless therwise noted. (P = ppF).
MODELCX-34G3 SCHEMATIC DIAGRAM PWB-C (AV2 UMT) DUNTK9324WEVO B (CRT UNIT) <9323WEV2 ~ PWB-A (MAIN UNIT) DUtdTK9322WEW 1 .
k, CX-34G3 CX-51 G3 26
CX-34G3 CX-51 G3 MODEL CX-51 G3 SCHEMATIC DIAGRAM 27
CX-34G3 CX-51 G3 CX-34G3 CX-51 G3 28
J 1 AUDIO-IN --------w--z-VIDEO-IN ____AUDIO-OUT--______VIDEO-OUTv-, 2 I 3 4 29 5 6
\I CX-34G3 CX-51 G3 CX-34G3 CX-51 G3 r l 5701 c----1 d--! I 1 L-- - -+ -8 I I I 1 I-F & -------__A, 1 L70L ; LINE FILTER I*---- - - - - - a-1 j I II I l-4 R E CTI F IER 070 I-0704 PLUSE CLIP D602 H-DRIVE 060 I T60 I H-OUT 0602 T
- MODEL CX-51 G3 BLOCK DIAGRAM P*B-B PWB-A MAIN UNIT . H G IC35 I SPOT -FOCUS / ------_ - C I- I - I - , * F c - E D C B 4 i@ @ @ a ---------___----____--------.
CX-34G3 CX-51 G3 CX-34G3 CX-51 G3 G LED DR.
CX-34G3 CX-51 G3 PRINTED WIRING BOARD ASSEMBLIES (All the PWBs here are shown as viewed from their wiring sides) PWB-A: Main Unit 1 1 2 3 4 33 5 6 C C
‘. I 3463 51G3 --_-_ “-xxIIIIIII rX 1 ___.
Ref. No. Description PWB-A DUNTK9322WEwl/ws PARTS REPLACEMENT MAIN UNIT Code TUNER NOTE: THE PARTS HERE SHOWN ARE SUPPLiED AS AN ASSEMBLY BUT NOT INDEPENDENTLY. a TU201 VTUVTSTGHD64I R VHFTuner BF INTEGRATED CIRCUITS “HOW TO ORDER REPLACEMENT PARTS” TO have your order filled promptly and correctly, please furnish the following informations. IC201 VHiBA7357S/-1 R BA7357S IC202 RH-iX0037CEZZ R 32V Regulator AF IC302 VHiTA7348P/-1 AK AR 1. MODEL NUMBER 2. REF. NO.
Ref. No. Part No. * Description Code Ref. No. Description Code PACKAGED CIRCUITS PWB-A DUNTK9322WEwmv3 PR701 RMPTP0028CEZZ R Packaged Circuit (CX-34G3)AG MAIN UNIT(Continued) PR701 RMPTPOOOl D302 RH-DX0224CEZZ R Diode AB D303 RH-DX0475CEZZ R Diode AB RH-DX0475CEZZ R Diode . R Diode AB D304 * Part No. R Packaged Circuit (CX-51 G3)AN PEZZ AH X801 RCRSB0244CEZZ R C r y s t a l , 16.
Ref. No. Description Part No. Ref. No. Code C408 PWB-A DUNTK9322WEwmV3 c409 MAIN UNIT(Continued) Part No. -k VCKYMNlCY103N R Description 0.01 Code 16V C e r a m i c AA AA VCEAGAlCWlOGM R 10 16V Electrolytic c410 RC-QZA104TAYK R 0.1 50V M y l a r AB c212 VCKYPAl HFlO3Z R 0.01 5ov Ceramic AA c411 VCEAGAlHW475M R 4.7 50V Electrolytic AB c213 VCFYSAlHB154J R 0.15 5ov Mylar AB C412 VCKYMNlCY103N R 0.01 16V Ceramic AA C214 VCKYMNlCY103N R 0.
CX-34G3 CX-51 G3 Ref. No. Part No. Ir Description Ref. No. Code PWB-A DUNTK9322WEwVws C616 VCFPPD3CA912H R 9 1 OOp 1.6kV M-Poly. AE (CX-51 G3) Description Code 50V M y l a r AA C805 VCEAGAl CW107M R 1 0 0 16V Electrolytic AB C806 VCKYMNl CY103N R 0 . 0 1 16V Ceramic AA C807 VCEAGAl CWl07M R 1 0 0 16V Electrolytic AB C808 VCKYMNlCY103N R 0 . 0 1 16V Ceramic AA C804 MAIN UNIT(Continued) * Part No. RC-QZA103TAYK R 0.01 50V M y l a r AB C809 VCKYMNlCY103N R 0 .
CX-34G3 CX-51 G3 Ref. No. Part No. * Description Code Ref. No. Part No. * Description Code PWB-A DUNTK9322WEwmM R324 VRD-MN2BElO2J R lk 1/8W Carbon AA MAIN UNIT(Continued) R328 VRD-MN2BE472J R 4.7k 1/8W C a r b o n AA R401 VRD-RA2EE750J R 75 1/4W Carbon AA R210 VRD-RA2BE122J R 1.
Ref. No. * Part No. Description Code PWB-A DUNTK9322WEwvw3 R661 VRW-KQ3NC4R7K R 4 . 7 7W Cement R661 RR-XZ0073CEZZ VRG-PD2HD820J R 270 1/2W Fuse Resistor AB R 82 1/2W Carbon AA 8 R33 1W k AA R 1M li8W Carbon AA R 3.9 Cement AE VRS-KT3LB562J R 5.6k 3W Metal Oxide AC R704 VRS-SV3DB15OJ R15 Metal Oxide AA Metal Film AB Metal Film AA Metal Film AA VRN-RV3DB4R7J 7W 2W R 4.7 2W (CX-51 G3) R705 VRN-VV3AB2R2J R 2.
CX-34G3 CX-51 G3 * Ir Description Code Ref. No. Part No. PWB-A DUNTK9322WEwVws R1047 VRD-MN2BE472J R 4.7k ll8W C a r b o n AA MAIN UNIT(Continued) R1049 VRD-MN2BE473J R 47k lf8W C a r b o n AA R1050 VRD-RA2BE473J R 47k 1/8W C a r b o n AA AA Ref. No. Part No. Description Code R1051 VRD-MN2BE393J R 39k lf8W C a r b o n VRD-MN2BE272J R 2.
L CX-34G3 CX-51 G3 Ref. No. Part No.
CX-34G3 CX-51 G3 Part No. Ref. No. PWB-B Ir Description Code Ref. No. PWB-C DUNTK9323WEvmm VRD-MN2BE471 J R 4 7 0 1/8W Carbon * Description Code DUNTK9324WEvoIw AV-2 TERMINAL UNIT CRT SOCKET UNIT(Continued) R862 Part No.
CX-34G3 CX-51 G3 Ref. No. Part No. * Description Code Part No. * Description Code PACKING PARTS MISCELLANEOUS PARTS (NOT REPLACEMENT ITEM) VSP905OPBll WA R Speaker AP A ACC701 QACCL3025CESA R AC Cord AR SPl Ref. No.
Ref. No. 1 Part No. Ref. No. Part No.
CX-34G3 cx-51 G3 SHARP COPYRIGHT 0 1997 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher. TQ0373-S Dec. 1997 Printed in Japan NA.
