| Make | Model | Problem | Solution | Date |
| | | |
| Found: 776
|
| Matsui | TVR161 | Blows 4A fuse at sw on | Q500 fet chopper (2SK2056) s/c, R501 (2R2 7W) o/c, C515 (1mfd, 160v) and C504 (47mfd) high esr. Print to pin 3 TDA4605-3 chopper control Ic o/c | 14-09-04 |
| Matsui | TVR161 | chopper FET s/c Q500 2SK2056 | check R504 330k; R506 820k metal film 350v also check 2R2 7w limiter | 14-09-04 |
| Matsui | TVR161 | Dead | R504 390k o/c (pin 2 of TDA4605-3) R505 330K Blows 2SK2056 2.2Ohmn 7w/w to bridge rects Changed all inc ic and C515 1uF 160v C504 47uF 25v | 14-09-04 |
| Matsui | TVR161 | Dead | R506 820k in psu o/c, Q500 2SK2056 FET s/c, & check C515 1µ 160v, C504 47µ 25v & R504 330k | 14-09-04 |
| Matsui | TVR161 | Dead - R508 in chopper overheats & destroys FET | Replace R508 47k (not 4k7) & Q500 FET 2SK2056 | 14-09-04 |
| Matsui | TVR161 | No pic with fb lines | HT to RGB o/p only 50v; C431 22µ 250v | 14-09-04 |
| Matsui | TVR161 | Slow start up before going dead | replaced q500 (2sk2056) + r508 47k res+ic501 tda4605-3 + the cause of the problem c504 47mfd (high ESR) | 14-09-04 |
| Matsui | TVR162 | Dead | start up res R506 560k o/c | 14-09-04 |
| Matsui | TVR162 | Sound level low on pback | Check elects in audio stage | 14-09-04 |
| Matsui | TVR180 | Dark pic | C819 2200pf 2kv leaky on crt base | 14-09-04 |
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| Matsui | TVR180 | Dead - PSU blown | STRF6707, R542, R543, R503, 22u, 100u & opto coupler | 14-09-04 |
| Matsui | TVR180 | Dead with front blown off STRF6707 | STRF6707 R542 0R39 1W, R543 680R, R503 4k7 | 14-09-04 |
| Matsui | TVR180 | Dead with psu pulsing | LOPTr 2SD2599 s/c - replaced with BU508DFI - no reason found for its demise | 14-09-04 |
| Matsui | TVR180 | Dead, front blown off the STRF6707 | replace STRF6707; R542( 0R39 1 watt ); R543 ( 680R );R503 ( 4k7) & 100uF & 22 uF in psu | 14-09-04 |
| Matsui | TVR180 | Low height aft EEPROM replacement | entered service mode Vol(-) +9 on H/Set. change vert amp setting from 30 to 45 on both. had to wait overnight for the backup battery to discharge, (to get into service mode) | 14-09-04 |
| Matsui | TVR180 | No I/P from SCART or access to tuning menu or i/p select | EEPROM corrupt - reprog IC | 14-09-04 |
| Matsui | TVR180 | No sound, AFC off | EEPROM corrupted | 14-09-04 |
| Matsui | TVR180 | Shows "Protected" after fitting EEPROM PCB | I/P any 4 digit code 3 x until screen displays ''protected''. Then hold ''volume down'' on TV & ''7'' on remote. | 14-09-04 |
| Matsui | TVR180 | Tuning not possible above chan 26 | Tuner faulty | 14-09-04 |
| Matsui | TVR180R | St/by only | EEPROM chip can be the cause - MODKIT37 from Grandata can be used | 14-09-04 |
| Matsui | TVR185 | Field collapse int - could be tappable | D401 int o/c | 14-09-04 |
| Matsui | TVR185T | Dead - 330v across mains cap | STRF6707 IC501 | 14-09-04 |
| Matsui | TVR2062 | Bright red screen at sw on then cuts out | CRT faulty - a gentle tap may help! | 14-09-04 |
| Matsui | TVR2062TS | Stuck in Protect Mode | First attempt to guess the four digit code by using any random numbers. On your third unsuccessful try the unit will stop asking for pin numbers on screen and go into the "protect mode" Within 5 seconds hold in the volume down on the TV at the same time as pushing the Number "7" on the remote handset. The set should then come on in the "unprotected mode" & you can see & alter the pin code in the correct menu if you desire. BTW if you have made three incorrect guess, this set has to be left unplugged for sometime B4 it allows you to guess again! It will go into standby within 10 seconds after "protect" is flashed on the screen. | 14-09-04 |
| Matsui | VTR161 | Field dist | 68k 1/4 watt R425 from pin 3 of fo/p chip IC402 LA7837 was going O/C as the PCB was being flexed. | 14-09-04 |
| Matsui | VTR161 | No sound | safety res R 511 6R8 1w - feeds the sound output stage +B rail to the VCR PCB was O/C. This resistor is located at the front of the TV PCB at the bottom & hidden by a large black heatsink carrying a couple of regulators. | 14-09-04 |