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El manual esta muy detallado, los numeros de partes y los esquemas de despiece son correctísimos y muy claros, tanto para los técnicos experimentados como para los novatos.
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Ottima qualità grafica e completo nelle notizie. Costo abbastanza contenuto.
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Great and quick support. The maual was exactly what I was looking for and my problem
solved. Many thanks.
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Very good service Within one day i received a pdf of the users manual and electric circuits so I was able to measure the different voltages in the printed circuit and find out the fault Payment was also reliable and easy.Without the manual i could not have repaired.So thanks to "Search for a manual"
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you are doing great job guys.....my father ask me to find out the schematics of Sony KV25R1D to sort out the problem ..(he was electrical technician, and excperianced with TV and simillar stuff). finally he found the cause and change all necessary parts....now he has got working old dog..and is very happy!!... thank you all.. NB..he also saved the repair cost.
5
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8
A M
IC152 (pins 2, 5) DDC_RX1
Q
IC101 (pins 58, 59, 62, 63, 66, 67, 70, 71) TMDS_RX2
A
Are signals detected?
No
Check the soldering of CN101. If soldering has not been done correctly, replace CN101.
Do signals (approx. 0.5 Vp-p) run in all the lines?
No
Check the soldering of CN102. If soldering has not been done correctly, replace CN102.
M
Yes
IC152 (pins 3, 6) Are signals the same as those at Pins 2 and 5 detected ? N Yes Q153 (pins 1, 4) Are signals the same as those at Pins No 6 and 3 but whose voltage has been converted from 5V to 3V detected? Yes
R
Yes DDC_RX2 No Check the soldering of CN102. If soldering has not been done correctly, replace CN102.
B
IC172 (pins 2, 5) No Check the soldering of IC152. If soldering has not been done correctly, replace IC152.
Are signals detected?
R
Yes
IC172 (pins 3, 6) Are signals the same as those at Pins 2 and 5 detected ? Check the soldering of IC172. If soldering has not been done correctly, replace IC172.
C
Check the soldering of Q153. If soldering has not been done correctly, replace Q153.
No
S
Yes
O
IC161 (pins 2, 15) Are signals the same as those at Pins 3 and 13 detected immediately after the power is turned on? Yes IC151 (pin 8) No Check the soldering of D151. If soldering has not been done correctly, replace D151.
Q173 (pins 1, 4) Are signals the same as those at Pins 6 and 3 but whose voltage has been converted from 5V to 3V detected? Yes
No
No Check the soldering of IC161. If soldering has not been done correctly, replace IC161.
Check the soldering of Q173. If soldering has not been done correctly, replace Q173.
P
O
IC161 (pins 4, 11)
D
Is the voltage about 5V? Yes
Are signals the same as those at Pins 3 and 13 detected immediately after the power is turned on?
No Check the soldering of IC161. If soldering has not been done correctly, replace IC161.
Check the soldering of IC151. If soldering has not been done correctly, replace IC151.
T
Yes IC171 (pin 8)
Is the voltage about 5V? Yes Replace IC171
No
Check the soldering of D171. If soldering has not been done correctly, replace D171.
E
F
VSX-AX4AVi-S
5 6 7 8
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