Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
---|---|---|---|---|---|
Hitachi | C28WD2TN | Goes off aft 5 mins | check sleep timer isn't set & dry joints on 5v regs - if HT is high(above 150v) check R950 & HT pot VR950 (under plastic frame) | ||
Hitachi | C28WD2TN | Dull red raster only | Check R807/8/9 560r cathode feed resistors - if burnt out s/c crt is suspect | ||
Hitachi | C28WD2TN | dotted vertical contours of pic features | C875 22µ 250v dry jointed | ||
Hitachi | C28WD2TN | Dead - previously int shut down | LOPTr had a pin hole in it & was arcing to heatsink in use | ||
Hitachi | C28W511N | Int trips | HT pot 1k, 68k feed res & check for dry joints | ||
Hitachi | C28W1TN-311 | Dead | R950 68k o/c, Q954 s/c, BU2508AF LOPTr s/c - psu will work for checking if loaded with 2k2 10w | ||
Hitachi | C28W1TN A7 | Service mode entering | Set to Chan 44 & press "Status" button(I or +) then mute & TV | ||
Hitachi | C28W1TN A7 | Excess height - unable to enter serv mode | Can be altered using EEPROM programmer - address 171H is the location | ||
Hitachi | C28W1TN | Trips aft 5 secs after trying to start up | FOPTr TDA8350Q was faulty - removing it makes no diff to symptoms HT should be approx 152v with Philips/LG crt | ||
Hitachi | C28W1TN | Tripping, tearing pic & OSD & no B | R809 560R & Q814 | ||
Hitachi | C28W1TN | Cuts out aft 10 secs (line freq appears to double) | Field chip TDA3650Q - other possible causes - 68k & 8k2 res & 1k pot | ||
Hitachi | C28W1TN | Cuts out | FOP chip TDA3650Q - also could be 68k & 8k2 res & dry joints Line Dr Tx | ||
Hitachi | C28P819 | Dead | MAINS SMOOTHING CAP 150uF 400v | ||
Hitachi | C28P759 | Width excessive | TB526 BS208 EW driver s/c | ||
Hitachi | C28P759 | No picture with burning smell | C525 2µ2 100v dry joint & burning - replaced |