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: 41
B & O
33
XX
Grey scale variations.
4R18 ( 1.8M ) on CRT base.
14-09-04
B & O
33
XX
INT LOSS SIGNALS
DRYS ON TCA270S IN CAN E
14-09-04
B & O
33
XX
No luminance.
Drys on tuner/IF contact strip , drys on coils delay line.
14-09-04
B & O
33
XX
No sound mute via hand set.
1D4 on tuner/IF panel.
14-09-04
B & O
33
XX
Pulsating.
Loose screws on chopper 6TR1.
14-09-04
B & O
33
XX
Remote - insensitive remote hand set.
Check LEDs for o/c.
14-09-04
B & O
33
XX
Startup - no startup.
Q3 on PSU o/c.
14-09-04
B & O
33
XX
Stuck in standby.
Short on 5T11 transformer primary-to-secondary.
14-09-04
B & O
37
XX
Flashing black lines - int
1TR11 tuner /IF pcb leaky int
14-09-04
B & O
37
XX
Lack of height
10v supply to fop cct low at 9v - D32 6v2 zener leaky
14-09-04
B & O
37
XX
No line sync
TDA1940 26IC5 - no sync out at pin 9
14-09-04
B & O
37
XX
No start up
Check for dry joints & Q3 in psu
14-09-04
B & O
37
XX
No Txt or osd etc
8IC1 shift reg chip 4015
14-09-04
B & O
37
XX
Width reduced
C32 1n5 1.5kv o/c
14-09-04
B & O
37
XX
Frame - reduced height
D32 6.2v zener leaky.
14-09-04
B & O
38
XX
Speaker - LH spitting noise
Poor conns earthing braid/aquadag on crt
14-09-04
B & O
39
XX
SPITTING FROM L/H speaker
CRT EARTH POOR - CLEAN
14-09-04
B & O
4402 35
XX
Dead
Check C10 & C12 ( 47u f )
14-09-04
B & O
4402 35
XX
No sound or picture.
5C10 ( 47u f ) o/c.
14-09-04
B & O
4402 35
XX
Width - line collapse.
Poor connections on scan coils leads.
14-09-04
B & O
4402 35
XX
Width - varieing intermittentley.
Poor connections on scan coils leads.
14-09-04
B & O
5102 77
XX
Intermittent negative picture.
Dry joints on i.f. board connector , in vision detect can.
14-09-04
B & O
5102 77
XX
Negative picture - intermittently.
Drys on IF edge connector , & earthg lugs in vision can.
14-09-04
B & O
7702 7
XX
XX
Dead with no standby LED - intermittent.
Drys on or T2 standby transformer.
14-09-04
B & O
8102 71
XX
Won't come out of st/by - int
R20 ON REMOTE / MICROPROCESSOR PCB HIGH IF 2M7 REPLACE WITH 820k
14-09-04
B & O
9000 33
XX
Tripping - & going to standby.
Dry joint on C18 S-correction capacitor.
14-09-04
B & O
LX2500 37
XX
NO STBY LED SET STUCK IN STBY
C14 470uF 16v OC
14-09-04
B & O
LX2800 37
XX
Sync - poor sync.
26IC5 ( TDA1940 )
14-09-04
B & O
MX1500 78
XX
raster but no sound or picture.
ICP1640 ( 630mA ) o/c.
14-09-04
B & O
MX2000 31
XX
Bright raster with no sound.
RL28 1.5ohm dry.
14-09-04
page:
1
2
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : Philips 730 a
script execution: 0.03 s