| Make | Model | Problem | Solution | Date |
| | | |
| Found: 776
|
| Matsui | 14R1 G1000 | Int pic & odd col effects | 17.7Mhz Xtal connected to pin 33 micro dry jointed or faulty | 14-09-04 |
| Matsui | 14R1 G1000 | Line at twice normal freq | Check I?Cbus line for low res to chassis - can be caused by micro or txt chip | 14-09-04 |
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| Matsui | 14R1 G1000 | Loss of one col | Tr801/2/3 BC847 sm leaky on main pcb - also check R903/8/13 330R emitter bias resistors & Tr904 etc BF423 on crt base | 14-09-04 |
| Matsui | 14R1 G1000 | Mains fuse blows int | Degaussing therm R100 | 14-09-04 |
| Matsui | 14R1 G1000 | Micro won't initialise | Corrosion on front tactile switches | 14-09-04 |
| Matsui | 14R1 G1000 | No pic - Txt ok | C840 0µ1 connected to pin 2 IC800 leaky | 14-09-04 |
| Matsui | 14R1 G1000 | Noise on sound at min vol setting | IC400 if chip faulty - increase R556 in audio I/p coupling cct to combat it | 14-09-04 |
| Matsui | 14R1 G1000 | PSU pulsing | R113 or R114 o/c or LOPTx | 14-09-04 |
| Matsui | 14R1 G1000 | Sound missing | No LT supply to audio o/p chip - R550 fusible 4R7 feed res o/c | 14-09-04 |
| Matsui | 14R1 G1000 | St/by only | Check D108 2v4 zener sm for o/c; often happens after failure of Tr100 | 14-09-04 |
| Matsui | 14R1 G1000 | Txt inoperative or int/frozen | Tr653 BC847 leaky, XT650 13.875Mhz Xtal dry joints | 14-09-04 |
| Matsui | 14T1 | St/by only | LOPTx SEME HR7511 | 14-09-04 |
| Matsui | 14TR50 F series | Sound but no raster at sw on thens shuts down with LED flashing every 4 secs | ReplaceR909, R913, R922 180K on tube base, D901 6.2V zener, 100k or could be 180K on tube base, R404 270K on main board. | 14-09-04 |
| Matsui | 14V1R | Dead - 2.5A fuse blackened | T665 (MJF18004C), IC630 (UC3842N), D663 (3.6v zener), CD656
(LL4148 smd diode) and CD656 (18v smd zener) were all S/C R661 (220R 1/2w) O/C. Cause was C669 1n 1400v dry joints | 14-09-04 |
| Matsui | 14V1R | Won't go fully into st/by - crt heaters stay lit etc | Pin 1 IC676 should drop to 1.2v in st/by - was staying at 10.7v. BC848 sm tr downstream from pin 1 was faulty though checked ok | 14-09-04 |
| Matsui | 14V1T CUC7303 | Dead - Chopper FET s/c | HT res cap 47µ 385v o/c | 14-09-04 |
| Matsui | 14VR1 | Dead - PSU blown | Chopper tfmr, S2055 LOPTr & FOP chip | 14-09-04 |
| Matsui | 1580 | Dead | C818 1µ 50v; R811; C810 22µ 160v; C806 1000µ 16v; C808 1000µ 25v;R409 2k7; C410 100µ 16v | 14-09-04 |
| Matsui | 1580 | Dead - F851 fuse shattered | Q801 BU508A s/c - caused by R808 270k o/c | 14-09-04 |
| Matsui | 1580 | Dead - fuse F851 shattered. | | 14-09-04 |
| Matsui | 1580 | Int vision at switch on. | IC TDA3562A must use TFK ( Telefunken ) type. | 14-09-04 |
| Matsui | 1580 | No pic at sw on until A1's adj | Replaced TDA3562A & change R513 from 180k to 68k & R515 from 120k to 150k | 14-09-04 |
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| Matsui | 1580 | SET SQUEALS AND SWITCHES OFF | C818 1uF 50v IN POWER SUPPLY | 14-09-04 |
| Matsui | 1580 | TRIPPING , SUPPLY AT TP44 160v | C818 1uF 50v | 14-09-04 |
| Matsui | 1580 | Trips off with squeal - high HT | C818 1µ 50v - once replaced HT normal at 112v | 14-09-04 |
| Matsui | 1660 | No luminance. | Q201 ( KTA562 ) &/or TA7698. | 14-09-04 |
| Matsui | 1660 2060 | INT AUDIO | REMOVE JA03 ON AUDIO PCB | 14-09-04 |
| Matsui | 1810 | Nicam breakthrough on sound | Remove CF 301 | 14-09-04 |
| Matsui | 1810 | NICAM INTERFERENCE ON SOUND | REMOVE FILTER CF301 | 14-09-04 |
| Matsui | 1810 | Pic jitter after heated up | C438 0µ022 | 14-09-04 |