| Make | Model | Problem | Solution | Date |
| | | |
| Found: 135
|
| Aiwa | VXD2120K | Pin code resetting when lost | unplug set for 1 hour plus. reduce volume to minimum. simultaneuously press Volume down on unit and "7" to reset pin code and customer ID | 14-09-04 |
| Akai | CT2125 | Comes on with chirping noise & st/by led on then trips out after 1/2 min | C817 100µ 25v | 14-09-04 |
| Akai | CT2125 | Int blank raster with fb lines | OK when con TD203 on txt pcb removed - TZ01 27Mhz Xtal | 14-09-04 |
| Beko | 14212 | Tuning drifts | C458 100nF sm near tuner or C460 breaking down (in parallel with C457 - not shown on diag) 0µ47 63v | 14-09-04 |
| Hitachi | C2121T Daewoo | Squealing with no sound/pic | Burning smell coming from IC301 TDA8356 FOP chip which was faulty | 14-09-04 |
| Hitachi | C2125T 11AK19K | Dead aft it went pop | D812 BYD33D s/c in 14v supply | 14-09-04 |
| Hitachi | C2125T 11AK19Y4 | St/by only | Handset was faulty even though it gave an o/p | 14-09-04 |
| Hitachi | C2127T | No sound, no picture; OSD and TEXT are Ok | pin 21 (blanking) of IC201 TDA8361 stuck at 8V, replace IC201 and make sure that the correct "N" version is used, mine was TDA8361/N5 | 14-09-04 |
| Mitsubishi | CT2124BM | Dead | C964 100µ50v o/c | 14-09-04 |
| Mitsubishi | CT2124BM | Dead | C962 100µ & C974 10µ in -30v supply6had leaked & corroded adjacent print, also C965 220µ leaky in 12v supply | 14-09-04 |
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| Mitsubishi | CT2124BM | Loss of tuning memory | check IC702 for 5v at pin1 & -30v at pin 2. If missing check back to psu, if ok replace chip. | 14-09-04 |
| MITSUBISHI | CT2124BM | NOT SWITCHING ON FROM COLD | REPLACE C964 100MFD50V | 14-09-04 |
| Mitsubishi | CT2125TX | Dead - standby light flashing. | HT @ 35v , D961 ( 6.2v zener ) leaky. | 14-09-04 |
| Mitsubishi | CT2125TX | Dead. | D909 ( 3v zener ) s/c. | 14-09-04 |
| Mitsubishi | CT2125TX | Int blowing line transistor. | STR54041 , clean & resolder pins of line driver transformer. | 14-09-04 |
| Mitsubishi | CT2125TX | Large black square int covers screen, floats left or right & int poor contrast | C959 100µ 25v hi esr causing low 5v supply from reg - also check C964 10µ 50v, C962 100µ 50v, C905 470µ 25v | 14-09-04 |
| Mitsubishi | CT2125TX | No sound mute. | D361 ( 1N4148 ) | 14-09-04 |
| Mitsubishi | CT2125TX | No video | Z951 630ma fusible link in 8.5v line on psu | 14-09-04 |
| Mitsubishi | CT2125TX | SLIGHTLY OFF TUNE | REPLACE IC101 | 14-09-04 |
| Mitsubishi | CT2125TX | Sound - will not tune right down or mute. | D361 ( 1N4148 ) leaky. | 14-09-04 |
| Mitsubishi | CT2125TX | Sound wont go off | Pin 4 audio chip hi at 2.3v (0.3v) - D361 1N4001 leaky | 14-09-04 |
| Mitsubishi | CT2125TX | Tuning slightly off - unable to fine tune | IC101 MS1496P | 14-09-04 |
| Mitsubishi | CT2125TX | user settings wont store | minus30v pin 2 eeprom IC702 low. C962 leaky also check other electros | 14-09-04 |
| Mitsubishi | CT212STX | Slow start up | C962 100µ 50v o/c - corroded leg & check for dry joints esp R902/916 | 14-09-04 |
| Philips | MD2.12E | "Digital scan" does not appear in the picture menu | In the direction for use is mentioned that in the picture menu the function 'Digital Scan' can be switched off.
However during the picture modes; Super Zoom, 14/9, 16/9, subtitles an automatic the function 'Digital Scan' does not appear in the picture me | 14-09-04 |
| Philips | MD2.12E | +5 V stand-by defective (also fuse 1580 defect) | First check the +5 V supply panel before replacing the fuse.
When the +5 V panel is defective, it could be that the +5 V becomes too high, which will damage the circuitry. | 14-09-04 |
| Philips | MD2.12E | After a while vertical and horizontal scrolling picture. | Check and replace if necessary:
IC7505 (software) in the feature box.
Software FBX3-F; 4822 900 10982
Software FBX4-Eco; 4822 900 10745. | 14-09-04 |
| Philips | MD2.12E | Bad colours | Check YUV output signals of IC7441 (TDA8753AN; 4822 209 90528)
If necessary replace IC7441. | 14-09-04 |
| Philips | MD2.12E | Bad focus or focus varies in a new set or after CRT replacement | Possible solution:
Short circuit the focus and the G2 pins of the picture tube with the
aquadag coating. Switch the set on for approximately 5 seconds.
After this return the set to its original condition. Check if the
focus adjusted normally. If not repla | 14-09-04 |
| Philips | MD2.12E | Bad start behaviour, ON and ST.BY LED flashing | Change mains input voltage by a variac. When start problem increases with an input voltage that is only about 10% below normal, check or replace the supply optocoupler. With a good optocoupler an avarage set easily starts on 60% of normal mains voltage. | 14-09-04 |