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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: 81
Bush
148
5N AK19
Int off aft 5 - 10 mins
Check for dry joints on regs - on big heatsink
14-09-04
Daewoo
DVT
148
2P
Dead
F4AH fuse o/c, chopper tr 2SD2499 s/c - used 2SD1555 in lieu, C811 100µ 16v hi esr, 220µ 25v hi esr
14-09-04
Daewoo
DVT
148
2P
Dead - mains fuse blackened & Chopper Tr s/c
TDA4601 control chip & C811 100µ 35v
14-09-04
Daewoo
DVT
148
2P
Dead with burning smell
LOPTx
14-09-04
Daewoo
DVT
148
2P CP310
Sound absent in TV mode - ok in pback
Check RHS edge connector for dry joints/damaged print on video unit
14-09-04
Goodmans
148
WONT STEP UP CHANNELS INT ( ALSO OTHER ODD EFFECTS
CHANGE MEM ICs ( BOTH ) IC**CAT24C02P
14-09-04
Goodmans
148
T
ROLLING AND PULLING PIC.
CHECK C703 47nf
14-09-04
Harwood
CTV
148
81R
Corrugated verts
C611 220µ 25v in psu
14-09-04
Harwood
CTV
148
81R
SERATED EDGES TO PIC - LESS AFTER WARM UP
C611 220mfd 25v
14-09-04
JVC
148
0
Dead - When main micro sus
check blue ceramic 3 legged filter
14-09-04
JVC
148
0
proc module faulty
caused by 3 legged ceramic filter
14-09-04
JVC
148
0
tuner drift
check sm comps
14-09-04
JVC
148
0EK
Stuck in st/by (timer light?)
22µ sm cap in stn select module had leaked & broken track between pin 2 of the IC and L001 choke.
14-09-04
JVC
C
148
0
Tuning drift
C016 0µ47 sm in thick film module
14-09-04
JVC
C
148
0EK
dead
mains at CON3 but not at LF901 choke. Cracked print by chassis support
14-09-04
JVC
C
148
0EK
St/by only - No HT at LOP
No 5v o/p pin 15 of Stn select module tho' 5v I/p at pin28 & -30v I/p at 34 - module faulty (Pt no SBX-M903A(E) ?44.82 + VAT WVE
14-09-04
JVC
C
148
0EK
tuner drift or failure to store chans
station select module SBX-M903A - check sm caps
14-09-04
Matsui
148
0
Contrast control has no effect - no remote.
Standby transformer O/C.
14-09-04
Matsui
148
0
Dark pic
C509 470µ 16v
14-09-04
Matsui
148
0
DARK PICTURE
CHECK 10V LINE FOR 50HZ C509 ( 47uF )
14-09-04
Matsui
148
0
Dead
STR50103A o/c also can be caused by R502/3 330k start up res o/c
14-09-04
Matsui
148
0
Dead
STR50103 o/c - no other faulty components
14-09-04
Matsui
148
0
Dead.
Replace STR50103 , SR2M , 2SD2105 , 6R5 7W.
14-09-04
Matsui
148
0
Int no teletext & blank raster.
Replace X901 6MHz Xtal.
14-09-04
Matsui
148
0
No raster or sound.
Replace line IC & clean the film on the nearby print.
14-09-04
Matsui
148
0
No remote or LED lights - contrast con U/S.
Standby transformer O/C.
14-09-04
Matsui
148
0
No signals
T101 pri winding o/c
14-09-04
Matsui
148
0
No sound or raster.
Replace line IC & clean the film on the nearby print.
14-09-04
Matsui
148
0
No sound or raster.
Check for sticky film around line chip.
14-09-04
Matsui
148
0
No sound/raster - no line drive
Clean sticky glue around line osc chip
14-09-04
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