TV
Repair Database
|
Hito |
F512T |
Int white line across upper
part. |
R55 clean resin from PCB
& refit ( 12R , 1/2w ) |
|
Huanyu |
37C2 |
Line collapse. |
Drys on T782. |
|
Huanyu |
37C2 |
No go with whistle. |
Drys on T782. |
|
Huanyu |
37C2 |
Squeal only at sw on |
Check R786 2k4 2w o/c or
R710 10k 3w o/c |
|
Huanyu |
37-C2 |
Hor lines & focus |
C610 2µ2 63v |
|
Huanyu |
37C-2 |
int dead - esp when cold |
Power reg STR4211 int -
stopped working when freezer applied |
|
Huanyu |
37C-2 |
line collapse |
dry joints T782 |
|
Huanyu |
37C-2 |
No luminance |
D306 1S2076 - checked ok
out of cct |
|
Huanyu |
37C-2 |
Pic shifted horizontally |
D781 SM1-02 & R783 220
1w disintegrated - caused by C780 2µ2 160v |
|
Huanyu |
37C3 |
bright raster with fb lines |
RGB supply low C774 10µ
250v o/c |
|
Huanyu |
37C3 |
Dead - line transistor s/c. |
ZD907 ( 2.7v ) zener. |
|
Huanyu |
37C3 |
Height 3" only |
C619 2µ2 50v |
|
Huanyu |
37C3 |
Line foldover, centre
cramp, lack of width |
Dry joint L781 |
|
Huanyu |
37C-3 |
Dead |
LOPTr 2SD898B & ZD907
2v7 zener |
|
Huanyu |
37C-3 |
Dead - mains fuse blackened |
Degaus therm |
|
Huanyu |
37C-3 |
Dead - mains fuse o/c |
Bridge rects s/c, R901 6R
6w surge lim o/c, STR4211, ZD907 2v7 zener s/c, R909 270k o/c, Q781 LOPTr
2SD898B s/c |
|
Huanyu |
37C-3 |
Dead - no HT or crt htrs |
Dry joints brown plastic
inductor by scan coil plug |
|
Huanyu |
37C-3 |
Dead - whining |
No load on psu - no line
drive - o/c print between line dr tfmr & L781 |
|
Huanyu |
37C-3 |
Dead with whining |
HT measures 2.7v. OK on
dummy load - LOPTx |
|
Huanyu |
37C-3 |
Field collapse |
dry joints field o/p chip |
|
Huanyu |
37C-3 |
Field flyback blanking
missing |
Check C612/613 1µ 50v |
|
Huanyu |
37C-3 |
Field non lin |
C611 2µ2 50v o/c |
|
Huanyu |
37C-3 |
Line collapse |
Line lin coil dry joints
& replace burnt R783 220R 1w |
|
Huanyu |
37C-3 |
No colour. |
Check R318 12k, R778 &
R779 1k5, TA7193AP dec chip |
|
Huanyu |
37C-3 |
No luminance |
Check service switch for
bad contacts |
|
Huanyu |
37C-3 |
No pic - PSU o/ps ok |
L509 12v feed to col dec
chip IC501 o/c |
|
Huanyu |
37C-3 |
No start up |
Check R710 10k 3w - line
osc start up res |
|
Huanyu |
37C-3 |
Ringing & patterning |
IC201 CD7607AP - TA7607AP
does in lieu |
|
Huanyu |
37C-3 |
Sound int |
poor connection to speaker
push on connector |
|
Huanyu |
37C-3 |
When replacing C907 2µ2
160v |
Markings on pcb may be
wrong -ve of C907 to cath
D905 |
|
Huanyu |
37C3 365A |
Dead - fuse o/c. |
Bridge recy , 6ohm , 6W
R901 o/c , ZD907 ( 2.7v zener ) ,
Q781 ( 2SD898B ) line |
|
Huanyu |
37C3 365A |
Line collapse Int. |
Drys on T781. |
|
Huanyu |
37C3 365A |
Line collapse. |
R783 ( 220ohm , 1W )
o/c/burnt , resolder Lin coil. |
|
Huanyu |
37C3 365A |
No line. |
R783 ( 100R )
o/c , D781 s/c , Due to drys on L783. |
|
Huanyu |
37C3 365A |
No picture. |
L509 ( 100uh ) o/c
, 12v feed to colour decoder IC. |
|
Huanyu |
37C-3R |
Int dead with mains sw
solenoid operating |
STR4011 power chip |
|
Hyanu |
37C3 |
INT SOUND |
LOUDSPEAKER FLEXIBLE BRAID
CONNECTIONS OC |
|
Hyanu |
37C3 |
LINE COLL Chopper TX
screaming |
DRY ON LINE LIN COIL L782
BURNING OUT R783 220R |
|
Hyanu |
37C3 |
No EHT no CRT heaters |
D/J on scan coil plug |
|
Hyanu |
37C3 |
No picture. |
L509 12v FEED TO IC501 OC |
