Schematics 4 Free
Service manuals, schematics, documentation, programs, electronics, hobby ....
◦
register
◦
send pass
S
earch
B
rowse
U
pload
W
anted
D
atasheets
C
hassis2model
R
epair tips
F
ulltext search
C
ables & Connectors
R
epair tips
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: 509
ITT
3493
No R/C, sound or col
SAA1251 R/C dec chip
14-09-04
ITT
3493 CVC1200
No sound - colour or remote.
IC SAA1251 Remote decoder IC.
14-09-04
ITT
3493 CVC1200
No startup or light on in standby but still o
Check for shorted out relay pins , Tx 4511 3109 faulty.
14-09-04
ITT
3493 CVC1200
Remote control inoperative
IC SAA1251
14-09-04
ITT
3538
St/by only - HT low at 40v
LOPT (FAT3806 or HR6057)
14-09-04
ITT
3621
Noise on pic then E/W dist & narrow
T541 BC637 & R539 1k faulty due to overheating & dry joints C521
14-09-04
ITT
3732 CVC825P
Frame - Hight & width low.
145v rail down - R651 ( 120k ) high.
14-09-04
ITT
3732 CVC825P
Width & hight low.
145v rail down - R651 ( 120k ) high.
14-09-04
ITT
3896 Digi-3
Dead.
Replace D795 & T742 plus fuse.
14-09-04
ITT
3896 Digi-3
Flyback lines & white raster.
Replace D541 & R541.
14-09-04
ITT
3896 Digi-3
Frame reduced after 1 or 2 hours.
Replace IC791.
14-09-04
ITT
3896 Digi-3
Lines flashing on picture.
Replace IC1403 ( MEA2901 ) on control panel.
14-09-04
ITT
3896 Digi-3
Lines on picture.
Resolder DJ on frame IC ( IC401 )
14-09-04
ITT
3896 Digi-3
No sound
IC670 pin 11 low - C676 s/c.
14-09-04
ITT
3896 Digi-3
Raster - white with flyback lines.
Replace D541 & R541.
14-09-04
ITT
3896 Digi-3
Sound - hum or buzz if using via "0" on scart
MOD. required ( screening to cover the digital mod )
14-09-04
ITT
3896 Digi-3
Teletext - flashing on 9's ect.
Replace IC640 ( TPU2732 )
14-09-04
ITT
3896 Digi-3
Teletext - no teletext.
Replace IC02.
14-09-04
ITT
3896 Digi-3
Teletext - picture 2" to left on teletext.
Replace IC02.
14-09-04
ITT
3896 Digi-3
Tripping.
Faulty sound IC5 ( TDA2040 ) .
14-09-04
ITT
3896 Digi-3
Tuning - not storing.
Replace IC1403 ( MEA2901 ) on control panel.
14-09-04
ITT
4835
Standby - going into standby int.
HT preset incorectly adjusted.
14-09-04
ITT
5861
Tripping.
BU208.
14-09-04
ITT
7180
Hiss only from left speaker
IC3201 APU2470 on audio/scart pcb u/s
14-09-04
ITT
7180
No sound - just buzz
ADC2310 audio proc chip IC3101
14-09-04
ITT
80-90 deg CVC823
No results - PSU heavily loaded.
C1021 ( 270pf )
14-09-04
ITT
80-90 deg CVC823
Slight hum bar & touchy tuning.
Cracked print at 90v supply res capacitor C516 ( 10uf )
14-09-04
ITT
80-90 deg CVC824
Screen flashing white - PSU trips momentarily
CRT.
14-09-04
ITT
80R
Black streaking & random channel change.
Spark gap on crt base panel.
14-09-04
ITT
80R
Colour - flashing on & off.
Check C721 ( 100u f )
14-09-04
page:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : Sony CDX-L480X
script execution: 0.01 s