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: 14
De Graaf / Granada
D51
KS
4D
St/by only
Several elects replaced & opto D315 CNY75 faulty - used CNX82A in lieu
14-09-04
Granada
C51
KS
6
No sound, pic shifted to left with vert bands
VP411 50k "H centre" pot near LOPTx o/c
14-09-04
JVC
AV24WT5E
KS
JK11
Blank white raster at start up - reverts to st/by aft 5 secs
The +5v supply low - replace 5v reg IC954 BA05T - used L7805CP in lieu
14-09-04
JVC
AV24WTSE
KS
Dull pic, poor contrast
Check if "ECO" mode has been set - press the I "Information button and Mute button at the same time to enter the service mode. Choosing 6 (Picture settings) from the VSM menu you can set up the contrast and brilliance settings etc in all the preset modes that this set offers (EI Warm, Cool, Normal etc)
14-09-04
JVC
AV28WFT1E
KS
Reverts to st/by aft pic appears with lack of width at sw on
C521 2nF 1.5kv tuning cap breakdown - pt no QFZ0196-202
14-09-04
JVC
AV28WR4E
KS
Dead
Replaced s/c MC44604P chopper chip, CP953 blown, optocoupler TLP721FD4GR and the error amp SE-135N finally cured the problem (HT was rising above its correct 145v)
14-09-04
JVC
CV14E
KS
Int flashes red - worse when heated
IC401 Vid proc - Pt no JVC 03320211631A
14-09-04
JVC
CV14E
KS
Int no pic on RF - OK on scart
L204 o/c pt no JVC 10515010102V
14-09-04
JVC
CV14E
KS
Onwa
Dead - HT present at coll of chopper tr
R919 10k additional res in series with base cct of Chopper o/c
14-09-04
Nikkai
KS
159T
Dead aft blow up with Q801 BUZ77B blasted
R809 0R47 & R805 330k o/c & replace IC801 TDA4605
14-09-04
Nokia
5354U
KS
FN
Crackle on NICAM sound
MSP2400 sound proc IC & reset eeprom values
14-09-04
Nokia
6364U
KS
FN
E-W fault symptom
C515 2µ2
14-09-04
PYE
56
KS
1062
dim blank raster
TDA3560 was blanking the crt
14-09-04
Sony
FE1 KV25
KS
U
FRAME IC HOT LINES ON SCREEN
REPLACE C506 0.01MFD
14-09-04
page:
1
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : Keithley 1N3595
script execution: 0.10 s