Read Sharp SD-PX15H (serv.man18) Service Manual online
SD-PX15H
7 – 4
• Video is not output normally.
Put a disc on the DISC tray.
Yes
Is video signal input to each pin of IC3201 as shown below ?
IC3201 2 pin S-C
IC3201 6 pin S-Y
IC3201 10 pin Py
IC3201 12 pin Pb
IC3201 14 pin Pr
IC3201 6 pin S-Y
IC3201 10 pin Py
IC3201 12 pin Pb
IC3201 14 pin Pr
No
Check the main unit. (Circuits around IC3001 and IC3201.)
Check S5V line.
Yes
No
Video signals input to each pin of IC3201 as shown below ?
IC3201 26 pin S-C
IC3201 23 pin COMP
IC3201 21 pin S-Y
IC3201 20 pin Py
IC3201 18 pin Pb
IC3201 16 pin Pr
IC3201 23 pin COMP
IC3201 21 pin S-Y
IC3201 20 pin Py
IC3201 18 pin Pb
IC3201 16 pin Pr
No
Is voltage of approx. 5 V supplied to pins 1 and 28 of IC3201 ?
Yes
Yes
Do V-MUTE line for pins 3 and 13 of IC3201 reach “H” level ?
Yes
Replace IC3201.
No
Check V-MUTE line.
Is video signal output to each pin of main unit connector
CNP601 as shown below?
CNP601 as shown below?
CNP601 1 pin V
CNP601 2 pin S-C
CNP601 3 pin S-Y
CNP601 5 pin Pr
CNP601 6 pin Pb
CNP601 7 pin Pr
CNP601 2 pin S-C
CNP601 3 pin S-Y
CNP601 5 pin Pr
CNP601 6 pin Pb
CNP601 7 pin Pr
No
Check between CN3201 and CNP601.
Yes
Is each video signal output to the specified output terminal ?
Is combined video signal output to VIDEO OUT terminal (JK601)
?
Is combined video signal output to VIDEO OUT terminal (JK601)
?
No
Check line from pin 1 of CNP601 to VIDEO OUT terminal (JK601)
and VIDEO OUT terminal (JK601).
and VIDEO OUT terminal (JK601).
Is brightness signal output to S-OUT terminal (SO602) ?
No
Check line from pin 3 of CNP601 to S-OUT terminal (SO602) and
S-OUT terminal (SO602).
S-OUT terminal (SO602).
Is chrominance signal output to S-OUT terminal (SO602) ?
No
Check line from pin 2 of CNP601 to S-OUT terminal (SO602) and
S-OUT terminal (SO602).
S-OUT terminal (SO602).
Is brightness signal output to pin 1 of SCART OUT terminal
(SO601) ?
(SO601) ?
No
Check line from pin 7 of CNP601 to pin 1 of SCART OUT terminal
(SO601) and the SCART OUT terminal (SO601).
(SO601) and the SCART OUT terminal (SO601).
Is chrominance difference signal (Pb) output to pin 3 of SCART
OUT terminal (SO601) ?
OUT terminal (SO601) ?
No
Check line from pin 6 of CNP601 to pin 3 of SCART OUT terminal
(SO601) and SCART OUT terminal (SO601).
(SO601) and SCART OUT terminal (SO601).
Is chrominance difference signal (Pr) output to pin 5 of SCART
OUT terminal (SO601) ?
OUT terminal (SO601) ?
No
Check line from pin 5 of CNP601 to pin 5 of SCART OUT terminal
(SO601) and SCART OUT terminal (SO601).
(SO601) and SCART OUT terminal (SO601).
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