Read Sony HBD-NF620 / HBD-NF720 Service Manual online
HBD-NF620/NF720
4
2. Video
check
fl ow
Check that the drive is
operating normally.
operating normally.
Refer to the “2-1. Flow of drive section check”
on page 6 on original service manual.
on page 6 on original service manual.
NG
OK
Exchange the complete MB-149 board.
OK
Check the solder of J1401.
NG
Check that each power
supply is supplied.
supply is supplied.
Refer to the “1. Power check flow” on page 2.
NG
OK
Check that VIDEO OUT is
outputted normally.
outputted normally.
Check that there are no abnormalities in J1401.
NG
OK
Check that the input voltage
of the following pin is 6 V.
MB-149 board
IC701 pin 5 (VIN)
of the following pin is 6 V.
MB-149 board
IC701 pin 5 (VIN)
Refer to the “1. Power check flow” on page 2.
NG
OK
Check that the output voltage
of the following pin is 5 V.
MB-149 board
IC701 pin 4 (VOUT)
of the following pin is 5 V.
MB-149 board
IC701 pin 4 (VOUT)
Exchange the IC701.
Part No.
6-705-337-01
6-705-337-01
NG
OK
Check that only the digital
output (HDMI) is affected.
output (HDMI) is affected.
Check the settings on the menu screen.
NG
Description
IC TK11150CSCL-G
IC TK11150CSCL-G
OK
Check that there are no
abnormalities in CN750.
abnormalities in CN750.
OK
Perform other analyses.
Exchange the CN750.
Note:
When CN750 is exchanged, be careful of the
quality of soldering enough.
Part No.
1-821-398-41
1-821-398-41
NG
Description
HDMI CONNECTOR
(HDMI
HDMI CONNECTOR
(HDMI
ARC
OUT)
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