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: 17
Bush
2057
2059
2157 2
Dead - no StBy
R919 0R68 oc ( pin 4 chopper Tx )
14-09-04
Bush
2059
2159NTX Onwa
Pic alternates with blank raster & corrugated verts
C915 100µ 160v in HT supply o/c
14-09-04
Bush
2059
NTX
Dead - HT present
R919 0R68 o/c in LT supply
14-09-04
Bush
2059
NTX
Height fluctuates/reduces & NICAM sound dropout
18v supply low at 11v due to R919 1R high res
14-09-04
Bush
2059
NTX
If standby selected pic becomes dark & sound mutes
Q907 ( 2SC2335 )
14-09-04
Bush
2059
NTX
No raster, no sound, EHT 32KV
C910 10uF, C909 47uF, R422 3R3 2w, ZD402 12 volt zener and R423 .68ohm
14-09-04
Bush
2059
NTX
No sound or raster - HT line Ok.
R919 ( 0.68ohm ) fusible o/c.
14-09-04
Bush
2059
NTX
Patterning when cold - possibly with no col
C125 100mfd 16v between IC103 & IC101 near front of pcb
14-09-04
Bush
2059
NTX
St/by only
R120 (100K ) power unit O/C
14-09-04
Bush
2059
NTX
Trips
No 17v o/p from psu sec - 6R8 surge lim res o/c
14-09-04
Bush
2059
NTX
Wont sw to st/by
Q907 2SC2335
14-09-04
Bush
2059
TX
Brightness variations
C424 10µ 250v - video o/p supply smoother
14-09-04
Bush
Onwa
2059
NTX
Pic size varies with brightness after psu repair
Check 0R68 resistors for rise in value
14-09-04
Daewoo
DMQ
2059
Int trip
On/Off sw momentary contacts perm connected
14-09-04
Grundig
CUC
2059
Dead - chopper tr T60006 blown
14-09-04
Matsui
28WV2N CUC
2059
Dead
T60006 BUZ90 s/c, also replace R60001 62k 1w & R60007 270k 1w
14-09-04
Matsui
28WVDP CUC
2059
Dead - both mains fuses o/c
T60006 chopper Tr BUZ90A s/c - caused by R60001 270k o/c
14-09-04
page:
1
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : LG 50pa4500-zm 50pa4510-zg 50pa4520-zj chassis pb23a
script execution: 0.10 s