| Make | Model | Problem | Solution | Date |
| | | |
| Found: 776
|
| Matsui | 1820 | Int losing sigs | Tuner replaced | 14-09-04 |
| Matsui | 2038 Onwa | Dead | C909/911 457µ 50v, ZD401 12v zener s/c, R419 5R6 3w hi res | 14-09-04 |
| Matsui | 2038 Onwa | No sigs & no tuning volts | Q608 | 14-09-04 |
| Matsui | 2038 Onwa | Still Dead aft replacement of C909/911 47µ | R417 2k2 5w (line dr supply) o/c | 14-09-04 |
| Matsui | 2039 Onwa | Dim pic with field cramp & poss loss of col | R419 5R6 3w hi res | 14-09-04 |
| Matsui | 2050 | dist sound | speaker | 14-09-04 |
| Matsui | 2055 | Bright pic with fb lines | HT supply to RGB low at 113v (190v) - C120 4µ7 350v | 14-09-04 |
| Matsui | 2060 | Dead | Mains smoothing cap corroded pins | 14-09-04 |
| Matsui | 2060 | No luminance. | Q201 ( KTA562 ) &/or TA7698. | 14-09-04 |
| Matsui | 2074 | Dead | HT at LOPTr; no 12v - ZD401 12v zener s/c; C909/911 47µ 63v 105deg; R419 4R7 2W replaced | 14-09-04 |
|
|
| Matsui | 2074 | Dead - no 12v from LOP stage - HT high | R421 0R68, R419 5R6 & ZD401 BYX61-C12; C909 & 919 47µ 63v was the cause (HT should be 115v) | 14-09-04 |
| Matsui | 2074 2086 | LINE OUTPUT TRAN OR ZD401 SC | FIT HIGH TEMP C911 47uF | 14-09-04 |
| Matsui | 2074/2086 | Dead - LOPTr or ZD401 12v stab failed | C911 47µ 50v in psu | 14-09-04 |
| Matsui | 2076R | Dead - R505 0R82 o/c | IC501 STK730-060 s/c & replaced C511 10Mfd | 14-09-04 |
| Matsui | 2076R | Hum bar on pic | Ripple on agc feed to tuner - C004 dry joints | 14-09-04 |
| Matsui | 2076R | HUM BARS ON PICTURE | C004 DRY IN AGC FEED TO TUNER | 14-09-04 |
| Matsui | 2076R | Won't go to st/by | Q503 2SD401A | 14-09-04 |
| Matsui | 2080 | Dead aft 10 mins | STR50103A chip | 14-09-04 |
| Matsui | 2080 | Int blank raster, rolling, high vol, Txt info over pic at sw on | C426 1µ 160v line driver supply smoother | 14-09-04 |
| Matsui | 2080 | Snowy screen, no sound or LEDs lit | No volts to front panel due to o/c pri st/by tfmr | 14-09-04 |
| Matsui | 2085 | Dead | Check mains smoothing cap 150µ 350v, 1.6A fuse, 120/150k resistors & 100µ 25v cap in psu | 14-09-04 |
| Matsui | 2085 | Dead - fuse blown. | Chopper trans , 120 , 150k , 100uf 25v in charging cct , smoothing cap. | 14-09-04 |
| Matsui | 2086 | Field collapse | ZD401 12v zener; R419 5R6 3w safety res; IC401 LA7830 | 14-09-04 |
| Matsui | 2086 | High HT | C917 47µ 50v | 14-09-04 |
| Matsui | 2086 | Lack of contrast | R316 100k in beam lim (between fop chip & relay) | 14-09-04 |
| Matsui | 2086 | St/by only | D406 BYT52J s/c, R421 0R5 o/c, ZD401 12v zener s/c caused by high HT - 47µ in psu had dried up | 14-09-04 |
| Matsui | 209 | FIELD FOLDOVER AND FLYBACK LINES | C303 4.7uF 160v | 14-09-04 |
| Matsui | 2090 | No line drive | D401 o/c - used 1N4007 in lieu | 14-09-04 |
| Matsui | 2091 | Dead | D802S has 17v on cathode proving psu is ok. No 112v or 12v at D801S. FR801S 1R fusible res o/c & D803S dry joints | 14-09-04 |
| Matsui | 2091 | Dead | D803 DRY | 14-09-04 |