| Make | Model | Problem | Solution | Date |
| | | |
| Found: 68
|
| Hinari | CT15 | Bright, blank raster clearing with time | C629 100µ 25v | 14-09-04 |
| Hinari | CT15 | Sync missing | Check sandcastle pulse pin 27 IC201 (8v p-p), if ok check line pulses (+?V) pin 25. If missing or low check TXT cables/conns CN901/2. If still missing check 12v on this panel - goes to R949 - could be o/c | 14-09-04 |
| Hinari | CT15 TVA1 | INT WONT COME OUT OF SBY | LISTEN FOR MAINS RELAY , IF NOT CHECK 5v | 14-09-04 |
| Hinari | CT15 TVA1 GX9 | WON'T COME OUT STBY ( INT ) | IF RELAY DOESN'T OPERATE CHECK 5v ON FRONT PANEL OR RELAY DRIVER , IF RELAY WORKS , R802 , 803 100k OR STR5412 | 14-09-04 |
| Hinari | CT15 ST200 VTV20 | Bright blank screen , sometimes clears if left on | C629 100uF 25v oc | 14-09-04 |
| Hinari | CT15 TVA1 | St/by only | Check relay, R802/3 start up res 100k ?w, STR5412 | 14-09-04 |
| Hitachi | CPT1556 Salora L | NO LUMINANCE | LUMINANCE DELAY LINE OC | 14-09-04 |
| Hitachi | CPT1558 | Keyboard operation int | RD54 820k between base/emitt TD12 near keypad ribbon cable | 14-09-04 |
| Mitsubishi | CT1525TX | Dead with squeal | LOPTr 2SD1877 leaky - no other fault found (ON sw on front) | 14-09-04 |
| Mitsubishi | CT1525TX | St/by only - Q552 LOPTr 2SD1877 s/c | Check dry joints line dr trfmr & STR54041 IC901 | 14-09-04 |
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| Mitsubishi | CT1535TX | stuck in st/by - red light only | Replace STR54041 - only works properly with Mitsi version | 14-09-04 |
| Mitsubishi | CT15M1TX | Field collapse - partial or total | R563 0R82 o/c | 14-09-04 |
| Mitsubishi | CT15M2TX | Int off | IC901 (STR54041) int | 14-09-04 |
| Mitsubishi | CT15MS1TX | Low sound aft being in st/by | EPROM IC702 changed | 14-09-04 |
| Mitsubishi | CT15MS1TX | No sound/pic all ht volts ok | IC702 X24C04 eeprom replaced | 14-09-04 |
| Mitsubishi | CT15MS1TX | Sound but no picture. Brightness, contrast & colour all at minimum. Returning these settings to normal brings back the picture but they return to minimum if the set is switched off then back on. | Replace faulty X24C04P EPROM (IC702).
| 14-09-04 |
| Philips | 14PT156B | No pic (field collapse) - sound ok | R3449 4R7 feed res to FOP chip o/c - no other fault detected | 14-09-04 |
| Philips | Anubis A 14PT155A/05 | Dead - 95V being dragged down because the line dr tr turned hard on by 12V from pin 29 of IC7015 (TDA4504B). | LOPTx | 14-09-04 |
| Philips | L6.1 14PT1532 | No picture, hissing noise from speakers ( like no aerial), front LED not lit. Only 1v on micro supply line | Replaced 7505 BC548B, 5V reg from 5500 transformer. Philips Mod. Replace BC548B with a BC337-40 & change R3500 from 330R to 470R | 14-09-04 |
| Philips | L6.1 20PT1552 | Contrast poor | TDA8361 | 14-09-04 |
| Philips | L6.1 21PT1532 | Int locks up or loses pic | Carry out the following mod Remove Tr7505 (BC548B) & fit a BC337-40, change R3500 from 330ohm to 470ohm (these two are in the 5v rail) if any unusual faults persist then suspect corrupted EEPROM (part No 4822 2096 2098) | 14-09-04 |
| Sharp | 15AT15H | 3 coloured lines on the top of the picture | replace D504 (measured Ok). I used 1N4005 as a replacement. | 14-09-04 |
| Sharp | 5BSA 51AT15 | Dead symptoms with psu running | No line drive base Q603, no 5v supply pin 8 EEPROM IC1002 as 5v reg tr Q704 BC338-40 o/c emitter | 14-09-04 |
| Sharp | 5BSA 51AT15H | appears dead, LED is green | Q704 BC338 o/s | 14-09-04 |
| Sharp | 5BSA 51AT15H | Corrupted service mode settings after replacement of Q601/2 | No stopping when tuning, height and vert posn out - set AFC optione byte to '9F' | 14-09-04 |
| Sharp | 5BSA 51AT15H | Dead | LOPTr, Q509, Q510 & C713 | 14-09-04 |
| Sharp | 5BSA 51AT15H | Dead | C713 1000µ 25v hi esr caused failure of Q509 BC635 & Q510 BC338 in field cct | 14-09-04 |
| Sharp | 5BSA 51AT15H | Dead | C716 100µ hi esr | 14-09-04 |
| Sharp | 5BSA 51AT15H | dead | Q601 BU508DFI s/c (use correct type) | 14-09-04 |
| Sharp | 5BSA 51AT15H | dead | LOPTr reads s/c in situ, check R622 - one of its ends shorting to earth print | 14-09-04 |