Sony HT-MT500, Service Manual

Page: 36 / 66

HT-MT500/MT501
36
2. The video and audio of HDMI is not outputted
The video and audio of HDMI is not
outputted.
The voltage of the following is 1.2 V.
MB-1610 board: R449
The voltage of the following is 1.5 V.
MB-1610 board: JL2152
The voltage of the following is 3.3 V.
MB-1610 board: JL319
The voltage of the following is about 3.3 V.
MB-1610 board: IC301 pin 5
MB-1610 board: IC302 pin 5
MB-1610 board: IC306 pin 5
Check the mounted state of the area
surrounding IC301, IC302, IC306 on the
MB-1610 board.
Yes
Yes
The voltage of the following is about 5 V.
MB-1610 board: CN602
pin 18 (+5V POWER)
The voltage of the following is 5.2 V.
MB-1610 board: IC601 pin 5
The voltage of the following is about 5 V.
MB-1610 board: CN602
pin 15 (SCL (5V))
pin 16 (SDA (5V))
Yes
No
No No
Yes
abnormality
Replace the MB-1610 board.
No
Check the SCL, SDA line (mounted state
of connector (CN602) and resistor (R635
to R638)) on the MB-1610 board.
Check the mounted state of
the area surrounding IC6011
on the MB-1610 board.
abnormality
Yes
The voltage of the following is about 3.3 V.
MB-1610 board: IC601 pin 1
Check the mounted state of the area
surrounding IC601 on the MB-1610 board.
abnormality
Replace the MB-1610 board.
abnormality
Replace the MB-1610 board.
Replace the MB-1610 board.
The voltage of the following is about 3.3 V.
MB-1610 board: CN602 pin 13 (CEC) The voltage of the following is about 3.3 V.
MB-1610 board: IC5006 pin 8
Yes
No No
Check the mounted state of
connector (CN602), diode
(D5001), IC5006 and resistor
(R5007, R5020) on the
MB-1610 board.
abnormality
Replace the MB-1610 board. Replace the MB-1610 board.