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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: 157
Aiwa
VX9
142
K
Dead
R516 270k in psu o/c
14-09-04
Aiwa
VXD
142
0
Pin code removal
Enter wrong no 3 x, then press Vol- on set & "7" on R/C for 5 secs when "protected" appears
14-09-04
Aiwa
VXG
142
No raster - OSD OK
Q1029 near tuner
14-09-04
Aiwa
VXG
142
K
Dead - no st/by
R516 270K, IC501 TDA4605-3, Q500 2SK2397-01MR
14-09-04
Aiwa
VXG
142
K
Dead - no stby
R516 270k, IC501 TDA4605-3, Q500 2SK2397
14-09-04
Aiwa
VXG
142
K
Dead with st/by led lit - accepts a tape but no functs
ICP506 1A CP on tv pcb o/c
14-09-04
Aiwa
VXG
142
K
Dead with fast tripping aft power cut
C513/C538 1m 160v in psu hi esr
14-09-04
Aiwa
VXG
142
K
No pic or vcr mechs - osd & sound ok
Replacing the faulty switching transistor Q511 [2SB926] which supplies the chroma +9V cured both faults. It is situated at the back LHS of the VCR board.
14-09-04
Aiwa
VXG
142
K
No sigs
Q1029 (2SC926) at rear of vcr pcb s/c - used a BD234
14-09-04
Aiwa
VXT
142
0k
Dead
Start up Res R502 1M & R503 820k
14-09-04
Aiwa
VXT
142
0K
St/by only
LOPTr leaky
14-09-04
Akai
CT2
142
VNT
Poor pic with fbck lines and curious col
IC301 pin 12 supply only 7v5 (9v1). R424 (0R68) hi res
14-09-04
Astron
EC
142
Dead.
BU208A ( BU326A will do ) 22k in series with set-ht pot oc
14-09-04
Beko
142
12
Tuning drifts
C458 100nF sm near tuner or C460 breaking down (in parallel with C457 - not shown on diag) 0µ47 63v
14-09-04
Bush
142
7T
Blue screen with fb lines
18k on crt base
14-09-04
Bush
142
7T
bright screen with fb lines
check crt cathodes - if low at 100v check R435 0R68 safety res
14-09-04
Crown
CTF
142
RSL
Crown CTF142 TV when powered on displays a white horizontal line in the center of the screen. Upon inspection i discovered that Resistor R625 was fried. However i cannot see the code as it has burnt away. Id be greatfull for any help. Also would i need to
replace vertical ic w/ corresponding passive components like cap./ resistor r625 is fusible resistor like 0.5 ohm.
25-06-05
Etron
EC
142
Dead.
BU208A ( BU326A will do ) 22k in series with set-ht pot oc
14-09-04
Goodmans
142
0R
All progs slightly mis-tuned & not stopping during search tune
All that was required was a slight tweak of the hex core in the afc coil
14-09-04
Goodmans
142
5RS
Dead with slight ticking
IC901 TDA6106Q on crt base (runs warm)
14-09-04
Goodmans
142
5RS
Lines at bottom from cold
C308 470µ 25v
14-09-04
GOODMANS
142
5RS
LINES ON BOTTOM OF SCREEN WHEN COLD
REPLACE C308 470MFD25V
14-09-04
Goodmans
142
5RS
No pic or screen volts - sound ok
C911 on crt base leaky
14-09-04
Goodmans
142
5RS
NO PICTURE SOUND OK
REPLACE C911 ON CRT BASE
14-09-04
Goodmans
142
8RT
Line speed off
Due to wrong spec TDA8362 use one with 3Y prefix (not 5Y)
14-09-04
Goodmans
142
8T
LINE SPEED OFF
CHANGE TDA8362 TO A TDA8362A
14-09-04
Goodmans
142
8T/2028T
No col, IC701 pin 26 0v, pin 33 low - no burst
C503 4n7 leaky
14-09-04
Goodmans
TVC141/
142
Vol locked in mid posn
EEPROM 24C08P
14-09-04
Goodmans
TVC141/
142
VOLUME LOCKED
REPLACE EEPROM
14-09-04
Goodmans
TVC
142
T
Dead with st/by psu running
No 8v from main psu due to dry joints on power touch sw
14-09-04
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