Make | Model | Problem | Solution | Date |
| | | |
Found: 10
|
Hitachi | C2574TN C2874TN | Shuts down with only NICAM leds lit | R952 68k, R953 82k, R954 8k2 in PSU | 14-09-04 |
Hitachi | C2874TN | Dead with plopping sound at sw on | R901 82k 1/2w start up res o/c | 14-09-04 |
Hitachi | C2874TN | Dead with popping sound from spkrs | R901 82k o/c | 14-09-04 |
Hitachi | C2874TN | Field collapse - IC601 failed | Check dry joints Q601/2/3 & R610. Also E-W chip & 10R safety res not marked on cct connected between L752 & diodes D707/6 | 14-09-04 |
Hitachi | C2874TN | Field o/p chip IC601 LA7838 fails | Check dry joints Q601/2/3 & R610 etc. Check IC751 (e/w corr) in psu | 14-09-04 |
Hitachi | C2874TN | Int dead - can come back on its own. Sometimes red/green or no LED | Dry joints on IC951, Q953, and Q956. Q953 was the worst, all
connections to each leg were faulty. | 14-09-04 |
Hitachi | C2874TN | Int E-W | R751 across C758 on comp side of pcb not soldered | 14-09-04 |
Hitachi | C2874TN | Int width & E/W dist | Dry joint wire link J196 between C612 & R080 connected
to plug E180 via Pin 8 (EW connection). | 14-09-04 |
Hitachi | C2874TNX | Trips with red led blinking | Dry joint Q953 coll under plastic runner | 14-09-04 |
Hitachi | C2874TNY | Reverts to st/by | Check IC4451 TDA7253M audio chip & R952 68k in HT preset network | 14-09-04 |