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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: 2171
Amstrad
3128N
F
Int pic break up
Line dr Tr replaced & increase feed res from 1 to 2k
14-09-04
Amstrad
CTV3121N
F
11AK12
No response from R/C although R/C is outputting a signal
Was still faulty handset - dry joints IC giving wrong output codes
14-09-04
Amstrad
CTV3128N
F
CTV3228NF
Field collapse
C578 470pF leaky (behind FOP chip)
14-09-04
Amstrad
CTV3128N
F
CTV3228NF
Field collapse with narrow display & no sound
The +8v supply pin 10 ICI101 missing but present on pin 36 - L300 10µH o/c
14-09-04
Amstrad
CTV3228N
F
No Txt or tuning menu - stuck in Hotel Mode
When set up in tuning memory all settings lost at sw off - Memory IC faulty
14-09-04
Amstrad
WSTV7328N
F
11AK19
Narrow with E-W bowing
R629 10R o/c - check for dry joints on caps
14-09-04
Blaupunkt
F
M100
Dead - relay click as normal
No mains feed to pcb as relay M865 o/c pole
14-09-04
Blaupunkt
F
M100-21S
field - lack of
C723, C733 1000µ 25v
14-09-04
Blaupunkt
F
M100-30
Entering service mode
Power up set with "ME" pressed V-Amp press brightness then adjust with plus and minus,store with ME V-Shift press >< ...... H-Width press colour ...... H-Shift press volume ...... Power off with mains switch. Power on the set with ME depressed until display is lit. Audio-norm press P Power off with mains switch. Power on the set with ME depressed until display is lit. Standby-enable press oo (two channel mode) Power off with mains switch. two digit program-numbers,select between1-9,press C and select channel,press ME and select within 5 seconds two digit number, the numbers in your choosen decade are now enabled and accessable.
14-09-04
Blaupunkt
F
M120
Long time to come on
C420 1µ 63v, C426/429 100µ 25v & TDA4600
14-09-04
Blaupunkt
F
M120
Tripping at sw on
LOPTx arcing
14-09-04
Blaupunkt
IM63-18
F
M 100-41
E-W bowing - won't correct
IC555 TDA 8145
14-09-04
Blaupunkt
IM63-18
F
M 100-41
Width excessive
D518 BY 399 s/c
14-09-04
Blaupunkt
MILANO IL32
F
M
DEAD RELAY CLICKS
RELAY OC ON ONE POLE
14-09-04
Blaupunkt
MS70-76
F
M 100-30
black screen
U2(200V) is missing at CRT pcb. Check fuse S720 and R1853(3K3)+V1855 (BF421) on video module. +evt. R1816+V1815
14-09-04
Blaupunkt
MS70-76
F
M 100-30
No start up at power on
C450 100uF/25Vin psu between TDA 4601 & base V450. Also check L452 in Coll of V450 & all comps in psu. Recomend fit 10k between pin 1 & 9 of TDA 4601
14-09-04
Blaupunkt
MS70-76
F
M 100-30
Relay clicks at sw on - otherwise dead
C441 1uF & R440 330k in psu area; 11v at V410 front left in front of modules ( measures 8 volt in Stby )
14-09-04
Blaupunkt
MS70-76
F
M 100-30
Reverts to st/by at sw on
C450 (100uF/25V) in psu area
14-09-04
BPL
F
MR9403
Field jitter & lines at bottom of pic
C455 2µ2 50v (pin 2 FOP chip)
14-09-04
Bush
28Z
F
K WST66
Dead set. TP2 (FET) Blown and also diode in bridge rectifier cct.
Fit new FET(I fitted a BUZ91 type instead of a P4NA80FI) and IN4007 diode in bridge cct
14-09-04
Bush
28ZK
F
Orion 4400
Dead with faulty on/off sw
Dry joints also LOPTr S2000AF s/c & LOPTx from SEME LOPTX1277 at ?18.95 Part S065621409
14-09-04
Bush
28ZK
F
WST66
Blank raster
Check TP6 BD441 5v reg, dry joints chopper trfmr
14-09-04
Bush
WST Pro
f
essional 4400 series
Service Mode access
hold menu button while turning CTV on until the red LED lights up. Release the menu button and press standby.
14-09-04
Bush
WST66 28ZK
F
Trips once then dead - LOPTr S2000AF1 s/c
LOPTx cause - FAT30564 ?19.38 SEME
14-09-04
Crown
CT
F
1401R
Field collapse
R200 4R7 feed to D200 FOP supply o/c - no other FF
14-09-04
Crown
CT
F
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
Crown
CT
F
14R
St/by only - LED lit
R521 100k near HT sw trs
14-09-04
Crown
CT
F
14R/T
Dead - LOPTx squealing - blows LOPTr
C261 22nF leaky
14-09-04
Crown
CTV9528N
F
T
Dead with TR15 S2000N S/C
Replace S2000N and C102 100ufd which was down to 20ufd
14-09-04
Crown
CTV9528N
F
T
Green 'tubey' picture
R28 68K on tube base
14-09-04
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Last SM download : Blaupunkt Opel Car 2003
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