Schematics 4 Free
Service manuals, schematics, documentation, programs, electronics, hobby ....
◦
register
◦
send pass
S
earch
B
rowse
U
pload
W
anted
D
atasheets
C
hassis2model
R
epair tips
F
ulltext search
C
ables & Connectors
R
epair tips
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: 15
Toshiba
2877
C7SS
Dead - HT low at 60v
Q801 STRS6709 - also replace D809, D813, D804
14-09-04
Toshiba
2877DB
C7SS
Reverts to st/by aft init EHT with G LED flashing
Frame IC Q301 TA8427K s/c on pin 2 (scan output).
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
28W8DBA
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
28W93B
C7SS
Line speed slightly off causing hor lines
C508 12pf in series with Xtal relaced
14-09-04
Toshiba
28W93B
C7SS
St/by only - HT only 43v (125v)
IC801 HIC1016 faulty
14-09-04
Toshiba
28W93B
C7SS
St/by only with LED lit
HT only 43v - IC Z801 HIC1016 u/s (HT regulator IC,12UKP+VAT). HT must be 125V when on & about 60V in standby
14-09-04
Toshiba
3377DB
C7SS
Hiss from left/right chan at vol level 1
Replace Multiplex/Audio module H002 type MVGS48 pt no 23148275
14-09-04
Toshiba
C7SS
background hiss from rear spkrs
improved Dolby digital module reqd
14-09-04
Toshiba
C7SS
Thin hor white line over pic
Move C314 to print side of pcb - see diag in Serv briefs
14-09-04
Toshiba
C7SS
White diagonal dashes - depends on vi content
TA9090AN digital comb filter chip
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
Toshiba
C7SS
28W93B
int. line whistle in widescreen mode
L441 (23233090)
14-09-04
page:
1
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : TEAC AG-D8000
script execution: 0.13 s