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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: 90
Goldstar
CI20C22F P
C4
2B
Reverts to st/by after sec of sw on
IC831 GL7812 12v reg o/c
14-09-04
Goldstar
M
C4
1 A chassis
Dead with STRS6707 blown
Check C819 4n7 2kv for burn before replacement
14-09-04
Goldstar
M
C4
1A
Dead with "plops" at sw on
dry joints C814
14-09-04
Goldstar
P
C4
2
Blank raster with on screen display, no sound
IC831 12v reg faulty - low o/p
14-09-04
Goldstar
P
C4
2B
No start up - led indicator works
HT low at 35v (109v); 12v Reg IC831
14-09-04
Granada
C4
1GS5 CBP1748
Int sw on
Opto coupler int
14-09-04
Granada
C4
1HS4 Sanyo E4A/B
Field reduced or collapse with blank raster
12v reg L78M12
14-09-04
Grundig
CU
C4
0
Frame collapse.
D2758.
14-09-04
Grundig
CU
C4
1
Dead - blowing fuse intermittently.
D657 ( MZD160 )
14-09-04
Grundig
CU
C4
1
Poor contrast
T2251 in tuner/if has glue on it's legs , try cleaning it off.
14-09-04
Grundig
CU
C4
1
Raster - white.
R723 high or o/c.
14-09-04
Grundig
CU
C4
1
SOUND NO PICTURE NO LINE DRIVE
TDA2595 US
14-09-04
Grundig
CU
C4
1
Tripping.
R651 in series with set HT control o/c.
14-09-04
Grundig
CU
C4
1
Tuning drift
C2230 0µ1 surf mount in tuner leaky (across TDA5430)
14-09-04
Grundig
CU
C4
1
Tuning drift with 33v down to 28v
C2234 0µ1 sm cap in tuner/if leaky - across pins of TDA5430
14-09-04
Grundig
CU
C4
1/70
Frame collapse.
D353 s/c.
14-09-04
Grundig
CU
C4
1/70
If channel changed sometimes snow would appear
Check on/off switch momentary contacts
14-09-04
Grundig
CU
C4
1/70
Sound - no sound & snow on picture.
DJ IC681.
14-09-04
Grundig
CU
C4
1/70
Standby - int going into standby.
C642 ( 100u f , 10v ) intermittent o/c by TDA4600.
14-09-04
Grundig
CU
C4
1/70
Tuner - drift for 1st 10 minutes.
If TDA4426 , change C2237 to 22uf , if TDA4427 change IC.
14-09-04
Grundig
CU
C4
1/70
Tuner - snow on picture & no sound.
DJ IC681.
14-09-04
Grundig
CU
C4
1B
Intermittent colour when cold.
Q2567 ( 4 , 43Mhz Xtal )
14-09-04
Grundig
CU
C4
1B
Intermittent display at switch on & no memory
IC663 ( MC78NI5 ) 15v supply to IC2301 down to 10v.
14-09-04
Grundig
CU
C4
1B
Memory - channel 1 & 2 losing memory.
IC2375 ( MCM2801 )
14-09-04
Grundig
CU
C4
1B
Memory - no & intermittent display at sw on.
IC663 ( MC78NI5 ) 15v supply to IC2301 down to 10v.
14-09-04
Grundig
CU
C4
1KT
DEAD POWER SUPPLY WORKING
TY40164 7812 OC
14-09-04
Grundig
CU
C4
1KT
Dead.
D655 ( BYW76 ) s/c.
14-09-04
Grundig
CU
C4
400
Chan changes & vol varies int
IR detector TFMS3300
14-09-04
Grundig
CU
C4
400
ERATIC LINE SYNC
C2257 100nF 63v
14-09-04
Grundig
CU
C4
400
Flickering/lines with pic breakup
C2257 100n 63v in line osc
14-09-04
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