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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair
Make
Model
Problem
Solution
Date
Found: 12
Toshiba
28W8DB
Service Mode entering
press "Mute" on remote , then press & hold "Mute" on the remote again while pressing the "Menu" button on the TV.
14-09-04
Toshiba
28W8DB
28W93DB
Tripping with LEDs flashing red/green at 1 sec interval
C819 22µ 100v low cap
14-09-04
Toshiba
28W8DB
C7SS
Dead with plug mains fuse o/c
Replace 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
14-09-04
Toshiba
28W8DB
C7SS
Field collapse - no drive
replace e/w ic Q4370 TA1241 pt no:B0385853
14-09-04
Toshiba
28W8DB
C8SS
No sound at all - spkr, scart, hphone
Check vert pcb is fully plugged in to main pcb under cover around back skts
14-09-04
Toshiba
28W8DB
etc
Sound mutes with high sat col (int)
Add 120pf cap in vacant posn RV49 on rear term pcb
14-09-04
Toshiba
28W8DB
, 28W93B etc
Sound mute during high sat pictures
Add 120pf in vacant RV49 posn
14-09-04
Toshiba
28W8DB
, 28W93DB
Tripping - Red/Gn LEDs flashing on/off every 1 sec
Q802 coll low (should be 35v) - C819 22µ 100v
14-09-04
Toshiba
28W8DB
A
Int off with led flashing & no red
CRT internal s/c - replaced under guarantee
14-09-04
Toshiba
28W8DB
A C7SS
St/by only with R & G LEDs flashing - was orig int start up
dry 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
14-09-04
Toshiba
C7SS
28W8DB
height reducing/varying, may be distorted sound with patterning on pic
C892 2200uF 35V 105deg on power PCB
14-09-04
Toshiba
C7SS
28W8DB
stuck in stby
Q4370 (B0385853)
14-09-04
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