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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: 242
Amstrad
TVR2/3
No tune store
MN1220 RAM - 14DN379/MN14831 chip
14-09-04
Amstrad
TVR3
Colour drops out
IC10 UPC1420
14-09-04
Amstrad
TVR3
Colour fades off
µPC1420CA IC10
14-09-04
Amstrad
TVR3
corrugated pics
C91 22µ 16v
14-09-04
Amstrad
TVR3
Dead
D306 SC
14-09-04
Amstrad
TVR3
Dead
Check D306 : IC301 : C310 : R301 : C307
14-09-04
Amstrad
TVR3
Dead
D306 FR304 120v rect s/c
14-09-04
Amstrad
TVR3
Dead
C310 3300pf 1kv split, 4A fuse o/c STK7348, C307 1µ 50v, C314 470µ 16v
14-09-04
Amstrad
TVR3
Dead except for whistle
C310 IN POWER SUPPLY 3.3nF 2kv
14-09-04
Amstrad
TVR3
dead with power to vcr
C310 3300pf 1Kv burnt
14-09-04
Amstrad
TVR3
Dead.
D306 ( FR304 ) s/c 120v feed to TB.
14-09-04
Amstrad
TVR3
Dead.
W/W resistor o/c by STK if blows change STK7348
14-09-04
Amstrad
TVR3
Dead.
Check IC301 & R301 For o/c
14-09-04
Amstrad
TVR3
Dead.
C307 ( 1uf , 50v )
14-09-04
Amstrad
TVR3
Dead.
Check Bridge Rectifier And 10 Ohm Series resistor
14-09-04
Amstrad
TVR3
Int dead
D21 9v1 ZENER
14-09-04
Amstrad
TVR3
Lack of G
G o/p tr u/s though checked ok on meter
14-09-04
Amstrad
TVR3
Line disturbance on dark scenes
STK7348 IC301
14-09-04
Amstrad
TVR3
Long time to come on
C307 1µ 50v faulty
14-09-04
Amstrad
TVR3
No colour after a long time.
IC10 ( u PC1420CA ) 48pin.
14-09-04
Amstrad
TVR3
No tuning
No 12v at tuner pin BU - IC2 LA7913 band sw chip
14-09-04
Amstrad
TVR3
OSG - no on-screen graphics.
14DN379/MN14831 IC.
14-09-04
Amstrad
TVR3
Pic varies in size with brightness when heated
STK7348 & R301 curr lim Res - fails again when replaced - a design fault? Make sure heat sink is adequate
14-09-04
Amstrad
TVR3
Screeming
C310 3300pf 1Kv disc cap
14-09-04
Amstrad
TVR3
Set goes dead when sw on/off when heated
Design fault suspected
14-09-04
Amstrad
TVR3
Slow start
C307 1µ 50v
14-09-04
Amstrad
TVR3
Tunes Ok - but does not store data
IC MN1225
14-09-04
Amstrad
TVR3
Tuning - will not tune in or store
14DN379/MN14831 IC.
14-09-04
Amstrad
WSTV3032
Dead - BU2525 LOPTr s/c
When replaced ran hot with smoke from D01 - EW driver chip STV2145 faulty
14-09-04
Amstrad
WSTV3032N
Accessing service mode
Enter code 089
14-09-04
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