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Thursday, 31 March 2016

Videocon Champ 14 Av solution

If your videocon champ 14 Rf or cable tv ok but AV not working mean when you press AV button on your remote it does not respons.
I first change a blank memory ic
2nd croma ic LA76931K 7N 5AP3
When it in same fault
3rd goto service mode
Menu 1947
Goto page no 7 by press vol+
There a option opt av system
Change this value zero to one
Now exit servise menu press standby button
Not you can enjoy AV now
If any query comment me in down comment box.

Thursday, 17 March 2016

HCL TFT185W80PSA+ MONITOR DEAD SOLUTION

WHEN A DEAD MONITOR HCL TFT185W80PSA+ COME
I FOUND SOME PART FAULTY AND REPLACE THIS AND NOW OK
TL431
TOP255EN
DIODE - SR5100





Wednesday, 9 March 2016

Cat vision model IN2-M-1E-850 LE

After some time Rf signal not coming
First check ic supply 24v
Second pin no 1 input Rf dB (80)
Third pin no 7 output Rf dB +dB of input
If any problem change this ic
Here these image

Rf signal comming but very weak 
First check rf ic pin no 1 signal that weak so 
Change the bo ic (optic ic )
Now input of rf ic ok anf all are ok

Thursday, 3 March 2016

Samsung CZ -20R1V LINERTY PROBLEM

BRAND = SAMSUNG
CHASIS = AA41 - 00849C
SYSTEM = TDA 9381PS/N2/3I1415
MEMORY = A510C
SMPS = 5Q0765RT
SMPS TRANSFORMER = AA 26-001
EHT= AA26- 00201A
HOR OUT PUT = D2499
HOR OSC COIL = 4150
VERTICAL = LA78040
AUDIO = TDA 8943SF
TUNER = AA40 - 00076A
REMOTE 
SERVICE CODE



This linerty problem solved by changing 681pf / 1Kv 2nos
552pf  / 1600v def
 

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