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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: 67
Goodmans
286NS (Phili
ps
L6.3 chassis)
No sound - noise only from speakers
MPS3410 chip faulty - replaced audio pcb
14-09-04
Hitachi
C2509T G7
PS
Field - bottom cramp
C606 680mfd 16v scan coupling cap
14-09-04
Hitachi
CPT2188 I
PS
ALO
INT WON'T START
C604 1000uF 25v
14-09-04
Hitachi
CPT2188 I
PS
ALO
LINE TEARING + INT BLUE SCREEN
PIN 13 ICB500 SHOULD BE 11v IF NOT REPLACE TDA 2579
14-09-04
Hitachi
G7
PS
2
Int colour
R501 1k5 o/c - also check R502 1k5
14-09-04
Hitachi
G7
PS
low ht 40v & Q903 chopper overheating
D905 s/c
14-09-04
Hitachi
G7
PS
PSU blow up
Reason could be - T901 dry joints on pcb & wrapped end
14-09-04
Hitachi
G7
PS
R763 burns up at sw on
R760, 761, 762 & 766 all o/c & R763 3k3 replaced
14-09-04
Hitachi
G7
PS
Striations on lh side - ok from scart
L101 choke in 12v supply faulty
14-09-04
Hitachi
G7
PS
C21119T
Field collapse int
D601 1N4002 flyback boost diode going int o/c
14-09-04
Hitachi
G7
PS
C2114
Reverts to st/by when r/c operated after set been on several hours
Also when Chan 8 selected set goes to Ch 9 - IC001 micro TMP series replaced
14-09-04
Hitachi
G7
PS
C2114T
Sound absent & streaky white lines on pic when cold
C955 47µ 25v in 15v smoothing supply
14-09-04
Hitachi
G7
PS
C2114T
Stuck in st/by
HT ok at 112v - cause was FOP chip TDA8274K
14-09-04
Hitachi
G7
PS
C2119T
St/by only
R903 82k by chopper tr hi res, or IC601 LA7836 fop chip
14-09-04
Hitachi
G7
PS
Mk2
Field collapse 1cm high
IC703 AN7809 9v reg leaky
14-09-04
Hitachi
G7
PS
2
BRIGHT WHITE THEN FIELD COLLAPSE
CHECK Q801 SC
14-09-04
Hitachi
G7
PS
2
DEAD , 130v ZENER s.c.
REPLACE R909 39K EVEN IF READS OK.
14-09-04
Hitachi
G7
PS
2
Dead.
112v rail high R716 ( 51k ) o/c.
14-09-04
Hitachi
G7
PS
2
Fails to start
R902 & R903 ( 82K )
14-09-04
Hitachi
G7
PS
2
HIGH EHT WITH SET TRIPPING TO SBY INSTANTLY
R909 39K HIGH also replace ZD903
14-09-04
Hitachi
G7
PS
2
INT DEAD
ZD901 6v8 zener
14-09-04
Hitachi
G7
PS
2
INT DEAD
39K - 82K POWER SUPP - ALSO D/J on reg 12V (EDGE OF PCB BY LOPT. )
14-09-04
Hitachi
G7
PS
2
INT. FLAG WAVING AFTER TELETEXT USE
IC2002 ( TEXT PCB )
14-09-04
Hitachi
G7
PS
2
No OSD set works ok
Replace HD401314RS
14-09-04
Hitachi
G7
PS
2
No signals Tuning bar moves as if tuning but no va
Check R044 ( 12K )
14-09-04
Hitachi
G7
PS
2
OSD NOT CLEARING
DOO7 HIGH
14-09-04
Hitachi
G7
PS
2
Shuts down aft 20 secs with buzz
In prot mode (shutdown volts at pin 20 TA8690AN) ZD701 3v9 zener leaky
14-09-04
Hitachi
G7
PS
2
STANDBY ONLY
IC703 DRY JOINTS
14-09-04
Hitachi
G7
PS
2
When tried to tune in the correct display appeared
The 33V tuning voltage supply was missing because R044 ( 12k ) was open-circuit.
14-09-04
Hitachi
G7
PS
L
Excess bright raster
RGB colls low volts - Q801 BC558B leaky (on main pcb)
14-09-04
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