Sony HT-ST5000 Service Manual page 66

HT-ST5000
2. The video and audio of HDMI is not outputted
The video and audio of HDMI is not
outputted.
Yes
The voltage of the following is 5.0 V.
MB-1611 board: JL317 (from IC303)
The voltage of the following is 3.3 V.
MB-1611 board: JL327 (from Q308)
The voltage of the following is 1.1 V.
MB-1611 board: JL335 (from IC305)
Yes
The voltage of the following is 3.3 V.
MB-1611 board: IC5000 pin 167 (NRESET)
The pin 170 (SYSCLK/XI) of IC5000 on the
MB-1611 board is oscillated (27 MHz).
Yes
The voltage of one of the following is
about 5.0 V.
MB-1611 board:
CN5001 pin 19 (HOT PLUG DET),
CN5002 pin 19 (HOT PLUG DET) or
CN5010 pin 19 (HOT PLUG DET)
Yes
The voltage of the following is about 5.0 V.
MB-1611 board: CN5004
pin 18 (+5V POWER)
Yes
The voltage of the following is about 5.0 V.
MB-1611 board: CN5001, CN5002,
CN5004, CN5010
pin 15 (SCL (5V)), pin 16 (SDA (5V))
Yes
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The voltage of the following is about 3.3 V.
MB-1611 board: IC301 pin 5
MB-1611 board: IC303 pin 5
No
MB-1611 board: Q303 base
Check the mounted state of the area
surrounding IC301, IC303 and
transistor (Q303) on the MB-1611 board.
Check the area surrounding NRESET line
on the MB-1611 board.
The voltage of the following is about 3.3 V.
MB-1611 board: IC5011 pin 5
No
Check the pin 2 and pin 4 of IC5011 on
the MB-1611 board is oscillated 27 MHz.
If not oscillated, check the mounted state
of IC5011 on the MB-1611 board, and
check the pin 7 of IC401 on the MB-1611
board.
Check the HOT PLUG DET line.
The voltage of the following is about 5.0 V.
MB-1611 board: R5223, R5226, R5229,
No
R5230
The voltage of the following is about 3.3 V.
MB-1611 board: Q5001, Q5002, Q5003
base
No
The voltage of the following is about 6.2 V.
MB-1611 board: IC5008 pin 5
Yes
The voltage of the following is about 3.3 V.
MB-1611 board: IC5008 pin 1
Check the mounted state of the area
surrounding IC5008 on the MB-1611 board.
Check the mounted state of SCL, SDA
lines and HDMI connector of the following.
MB-1611 board:
No
CN5001: R5018, R5345, R5346
CN5002: R5016, R5343, R5344
CN5004: R5012, R5013, R5034, R5035
CN5010: R5104, R5341, R5342
abnormality
Replace the MB-1611 board.
abnormality
Replace the MB-1611 board.
abnormality
Replace the MB-1611 board.
Check the connection between the
MB-1611 board (CN301) and the
AMP board (CN7004).
Check and repair the area
surrounding IC7011 on the AMP
board.
No
The voltage of the following is about
No
6.2 V.
MB-1611 board: CN301 pin 5, 6
Yes
Check the area surrounding CN301
on the MB-1611 board.
If there is no abnormality, replace
the MB-1611 board.
abnormality
Replace the MB-1611 board.
abnormality
Replace the MB-1611 board.