| Make | Model | Problem | Solution | Date |
| | | |
| Found: 22
|
| Goodmans | 3375 | Dead | dry joints chopper trfmr | 14-09-04 |
| Goodmans | 3375 | E-W chip burnt (IC18) | Also replace L15, D46 & 22R resistor | 14-09-04 |
| Goodmans | 3375 | Field severly reduced | Check diode feeding supply to FOP chip | 14-09-04 |
| Goodmans | 3375 | GOES TO STBY UNLESS ON OFF HELD ( WHEN SWITCH HELD | TDA8361 | 14-09-04 |
| Goodmans | 3375 | St/by only | TDA1521 Audio o/p IC s/c & R170 0R1 o/c | 14-09-04 |
| Goodmans | 3375 F11 | Corrugated verts & white dots on screen | 100 uF 25 volt next to regulator I.C. and 100 uF 250 volt on HT to line. | 14-09-04 |
| Goodmans | 3375 F11 | Corrugated verts & white dots on screen | 100µF 25v next to reg & 100µF 250v on HT to line. | 14-09-04 |
| Goodmans | 3375 F11 | E/W & width | L20 s/c pt no 88700503139 between scan coils & chassis - measured 0R6 on esr meter (infinite on 'Serv' coil) | 14-09-04 |
| Panasonic | TX143T Z375 Chassis | Tripping - st/by led flashing | LOPTx | 14-09-04 |
| Panasonic | TX14B3T Z375 chassis | Field collapse noticed when A1s advanced | IC301 TDA8456 - also do following mod - change C309 to 22µ 100v, add 0µ01 across R310 & fit 2R2 1w in place of jumper R420 | 14-09-04 |
|
|
| Sharp | DV3750 | Dead - burnt out safety res R728 | Replaced R728 3k3 ?w caused by D707 - pin 7 loptx | 14-09-04 |
| Sharp | DV3750H | Blank raster, virtually no pic/sound at sw on - int | Aft chan change no sound/pic, caused by corrupt NVM IC1002 24C02; replace with empty memchip & set up customer & service mode settings - usually caused by noisy 5v line; - replace D710 by 1N4937 - increase the value of C7145 to 2200uF/16V - add a 10nF/50V ceramic capacitor from pin 10 of IC1001 to ground - add a 10nF/50V ceramic capacitor from pin 39 of IC1001 and ground - fit a 8,2V zener diode between pins 4 and 5 of IC1002 (anode to pin 4) - fit a 8,2V zener diode between pins 3 and 6 of IC1002 (anode to pin 3) | 14-09-04 |
| Sharp | DV3750H | CHANGING SDA20561 - ( A528 ) TO SDA20561- ( A535 ) | CHANGE BOTH IC 1001 AND IC1OO2 IC1001 Sharp RH-IX1492BMN2 IC1002 Sharp CH-IX1463CJH6 | 14-09-04 |
| Sharp | DV3750H | Service mode entering | connect a jumper wire between terminals 2 and 6 of the service slot on
the video PWB
- press the MODE button on remote
- SERV will appear on the screen
- remove the jumper wire
- use channel up/down to move between the options
- use volume control buttons to change the data
- use the standby button on remote to store settings
- turn the set OFF with mains to exit service mode | 14-09-04 |
| Sharp | DV3751 | No AFC | Check R214 for damage - by tuner | 14-09-04 |
| Sharp | DV3751 | No AFC - poor tuning | R214 sometimes gets damaged if set dropped or if rear cover not put on correctly | 14-09-04 |
| Sharp | DV3751 | NO TEXT - AND NO CLOCK FUNCTION | CHECK LOCATION 21 IN NVM ( LINK PINS 2-6 EDGE CONNECTOR PRESS MODE , REMOVE LINK. ) | 14-09-04 |
| Sharp | DV3751 DV5131H | CHANGING MICRO | WHEN CHANGING MICRO REPLACE NVM ALSO IC1001 SDA20561- ( A535 ) RH-IX1492BMN2 IC1002 NVM Sharp CH-IX1463CJH7 | 14-09-04 |
| Sharp | DV3751H | BLANK VIDEO FIELD LINES ACROSS | REPLACE MICRO AND MEMORY Sharp CHIX1463CJ7 Sharp RHIX1492BMN2 | 14-09-04 |
| Sharp | DV3751H | int start up, dead,width | R601 5R6 5w varied in value & int o/c | 14-09-04 |
| Sharp | DV3751H | TEXT FAULTY , CHANNEL 4 , SOME TRANSMITTERS ONLY | 4 ) REPLACE R825 2.2k WITH 1.8k ( Sharp VRS TV1JD182J ) 5 ) ADD 100pF ON PRINT SIDE , ACROSS R871 6 ) FIT 100pF CAP IN POSITION C2 | 14-09-04 |
| Sharp | DV37560 | Reverts to st/by aft 2 secs | Heavy load on LOP stage caused by faulty LOPTx | 14-09-04 |