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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: 285
Akura
CX
24
Dead - hesitant to come on originally
R811 560k in psu pri hi res
14-09-04
Akura
CX
24
No sigs
tuning volts fixed at 31v - R023 47k o/c
14-09-04
Akura
CX
24
Sound low
Check for dry joints C622 1mfd bi-polar cap behind audio IC
14-09-04
Akura
CX
24
Txt lines across screen
C310 4µ7 250v in fop stage
14-09-04
Akura
CX
24
0
Snowy pic with 2" of field scan
R842 39k 1w in LOP stage
14-09-04
Bush
24
20
sound muting on some chans & no search lock
sync pulses at Q403 varying - base bias res R424 750k o/c
14-09-04
Bush
T
24
Contrast - dark picture.
TR203 ( BC557 ) may check ok.
14-09-04
Bush
T
24
No colour
R229 ( 3k6 ) go's high.
14-09-04
Bush
T
24
Shutdown - int.
R476 ( 1M ) o/c.
14-09-04
Bush
T
24
Shutdown - standby.
Zener D472 ( BZX79B6V2 ) leaky.
14-09-04
Bush
T
24
Teletext - interference.
C313 ( 4.7uf ) o/c.
14-09-04
Bush
T
24
E
Dead.
FS803 ( 3 15 ) , TR801 , D801-4 T801.
14-09-04
Daewoo
CP
24
0 GB20F8T2
Dead or relay clicking only
C840 47µ 25v in psu pri
14-09-04
Daewoo
CP
24
0 GB20F8T2
No control of vol or chan change - neg pic with fb lines
1703 eprom available from seme part number CAT24C08p at ?8
14-09-04
Daewoo
CP
24
0 GB20F8T2
To set up & service mode…
Put set in standby then press blue yellow green red & standby to get into svc, to adjust use 4 & 7, vert centre 5 & 8 size 6 & 9 slope yellow, blue horiz centre 123 & above to ajust RGB
14-09-04
Diamond
DM002 Daewoo
24
PF
Dead
TOP214, D12 1N4148, D819 18v zener on main board & fuse
14-09-04
Finlux
30
24
BLACK BANDS ON SCREEN WORSE AT TOP
CK8 0.1uF ( UNDER FIELD HEATSINK )
14-09-04
Finlux
30
24
Int sync
Ra13 & Ra17 on sigs/IF panel never been soldered
14-09-04
Finlux
30
24
There was intermittent loss of line and field sync
One end of both Ra13 and Ra17 had never been soldered.
14-09-04
Finlux
30
24
F
LINE TRANSISTOR SC REPLACEMENT BLOWS AFTER 2-3hrs
Tz3 LINE DRIVER US + DRY JOINTS
14-09-04
Finlux
30
24
F
No pic - faint vert line down centre at sw off
C219 scan coupling cap 470nf 250v split
14-09-04
Finlux
30
24
F
No signals received - ok on scart
ICi1 SDA3203-3
14-09-04
GEC
TVC
24
37B
Int off - no power LED
Dry joints PSU R183 22k & tfmr
14-09-04
GEC
TVC
24
60
No pic at sw on aft LOPTx replacement
Judicious adj of A1's
14-09-04
Grundig
24
01
Tripping
CHECK L-O-TRANS & L519
14-09-04
Grundig
24
01
TRIPS
L519 SHORTED TURNS
14-09-04
Grundig
55
24
5
BLOWS LOP. TRANSISTOR ( MAY RUN FOR SHORT TIME. )
CHECK 220mfd BASE DRIVE
14-09-04
Grundig
8
24
0
Lack of blue.
R1958 o/c.
14-09-04
Grundig
CUC
24
00
Dead.
BU508D.
14-09-04
Grundig
CUC
24
00
Flashing & intermittent picture.
Poor contact on CRT base board , & cap shorting.
14-09-04
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