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: 7
Matsui
TVR161
Blows 4A fuse at sw on
Q500 fet chopper (2SK2056) s/c, R501 (2R2 7W) o/c, C515 (1mfd, 160v) and C504 (47mfd) high esr. Print to pin 3 TDA4605-3 chopper control Ic o/c
14-09-04
Matsui
TVR161
chopper FET s/c Q500 2SK2056
check R504 330k; R506 820k metal film 350v also check 2R2 7w limiter
14-09-04
Matsui
TVR161
Dead
R504 390k o/c (pin 2 of TDA4605-3) R505 330K Blows 2SK2056 2.2Ohmn 7w/w to bridge rects Changed all inc ic and C515 1uF 160v C504 47uF 25v
14-09-04
Matsui
TVR161
Dead
R506 820k in psu o/c, Q500 2SK2056 FET s/c, & check C515 1µ 160v, C504 47µ 25v & R504 330k
14-09-04
Matsui
TVR161
Dead - R508 in chopper overheats & destroys FET
Replace R508 47k (not 4k7) & Q500 FET 2SK2056
14-09-04
Matsui
TVR161
No pic with fb lines
HT to RGB o/p only 50v; C431 22µ 250v
14-09-04
Matsui
TVR161
Slow start up before going dead
replaced q500 (2sk2056) + r508 47k res+ic501 tda4605-3 + the cause of the problem c504 47mfd (high ESR)
14-09-04
page:
1
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : Keithley 6220-6221
script execution: 0.11 s