Make | Model | Problem | Solution | Date |
| | | |
Found: 24
|
Matsui | 14R1 | Int stays in st/by | TR800 BC847 sm between jungle chip & Tr301 leaky/o/c | 14-09-04 |
Matsui | 14R1 | No sound or picture | Check D301 | 14-09-04 |
Matsui | 14R1 | One of these small portables produced a green scre | Replacing TR9Ol restored the picture. | 14-09-04 |
Matsui | 14R1 G1000 | Bright white raster - sound ok | R315 100R fusible o/c | 14-09-04 |
Matsui | 14R1 G1000 | Colour peculiar | No supply to CCD delay line chip IC801 - R831 47R o/c & C834 10nF s/c | 14-09-04 |
Matsui | 14R1 G1000 | Dead - no Led, but PSU seems ok | No start up signal from micro;Tr540 BC847 leaky | 14-09-04 |
Matsui | 14R1 G1000 | Dead or pulses few times 1st with 300v across C104 | C106 100µ low in value or IC100 s/c | 14-09-04 |
Matsui | 14R1 G1000 | Dead - psu ok | R314 6k8 o/c - removes supply to line driver | 14-09-04 |
Matsui | 14R1 G1000 | Dead - s/c in LOP stage | D301 s/c | 14-09-04 |
Matsui | 14R1 G1000 | Entering Service Mode | Hold down P+ & P- on set whilst sw on TV. To select adj pres V+ & V- at front of set togethr or "Menu" on handset. To carry out adj Press P+ & P-. To leave service menu press V+ or V- or "TV" on hset. | 14-09-04 |
|
Matsui | 14R1 G1000 | Flyback lines at top of pic | C201 220µ | 14-09-04 |
Matsui | 14R1 G1000 | Green screen at sw on | Check Tr901 & Tr904 on crt base | 14-09-04 |
Matsui | 14R1 G1000 | Green, red or blue background | C821, C824 & C825 0µ1sm on print side of main pcb leaky - remove, clean & refit or replace | 14-09-04 |
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 |
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 |