28W8DB Repair Tips


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Search: 28W8DB
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Results 13
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Toshiba 28W8DB
No frame drive however sound and line drive is presentE/W correction chip TA1240 at front of line/frame was defective, replacing the IC cured the fault
ToshibaC7SS 28W8DB
stuck in stbyQ4370 (B0385853)
ToshibaC7SS 28W8DB
height reducing/varying, may be distorted sound with patterning on picC892 2200uF 35V 105deg on power PCB
Toshiba28W8DBA C7SS
St/by only with R & G LEDs flashing - was orig int start updry joint on (+9V-1) reg tr Q420on sigs board next to IF unit. Overriding the protection by unsoldering pin 16 of Z801 broght the set to life with a narrow frame collapse 3/4 of the way up the screen
Toshiba28W8DBA
Int off with led flashing & no redCRT internal s/c - replaced under guarantee
Toshiba28W8DB, 28W93DB
Tripping - Red/Gn LEDs flashing on/off every 1 secQ802 coll low (should be 35v) - C819 22µ 100v
Toshiba28W8DB, 28W93B etc
Sound mute during high sat picturesAdd 120pf in vacant RV49 posn
Toshiba28W8DB etc
Sound mutes with high sat col (int)Add 120pf cap in vacant posn RV49 on rear term pcb
Toshiba28W8DB C8SS
No sound at all - spkr, scart, hphoneCheck vert pcb is fully plugged in to main pcb under cover around back skts
Toshiba28W8DB C7SS
Field collapse - no drivereplace e/w ic Q4370 TA1241 pt no:B0385853
Toshiba28W8DB C7SS
Dead with plug mains fuse o/cReplace Q801 STRS6709 pt no 23905084, bridge rect D801pt no 23316795, zener D804 MTZJ6.8B pt no 23316678, zener D815 MTZJ15B pt no 23316725 & R810 3R 15w pt no 24007864
Toshiba28W8DB 28W93DB
Tripping with LEDs flashing red/green at 1 sec intervalC819 22µ 100v low cap
Toshiba28W8DB
Service Mode enteringpress "Mute" on remote , then press & hold "Mute" on the remote again while pressing the "Menu" button on the TV.