Read Sony HBD-NF620 / HBD-NF720 Service Manual online
SERVICE MANUAL
SUPPLEMENT-1
9-893-453-81
Ver. 1.2 2012.07
File this supplement with the service manual.
File this supplement with the service manual.
Subject: Addition of TROUBLESHOOTING
HBD-NF620/NF720
AEP Model
HBD-NF620/NF720
UK Model
Taiwan Model
HBD-NF720
Mexican Model
HBD-NF620
HBD-NF620/NF720
2
TROUBLESHOOTING
1. Power
check
fl ow
The power is turned on.
Check that a sound is
outputted normally.
outputted normally.
Check that [Audio Settings] -
[Audio output] in the menu
screen is “Speaker”.
[Audio output] in the menu
screen is “Speaker”.
Check that the output voltages of the
SWITCHING REGULATOR are the following
value.
CN301 pin 1: 12 V (A+12V)
CN301 pin 2: 12 V (UNSW12V)
CN301 pin 3: 12 V (FEUNSW12V)
CN301 pin 8: 6 V (UNSW6V)
SWITCHING REGULATOR are the following
value.
CN301 pin 1: 12 V (A+12V)
CN301 pin 2: 12 V (UNSW12V)
CN301 pin 3: 12 V (FEUNSW12V)
CN301 pin 8: 6 V (UNSW6V)
Check that the following fuses are not damaged.
F5303/F5305/F5306/F5307/F1301
F5303/F5305/F5306/F5307/F1301
Check the following power control signal in the
power on state. (Normally voltage: +3.3 V)
MB-149 board
IC6301 pin 36 to 38 (PCONT1 to PCONT3)
power on state. (Normally voltage: +3.3 V)
MB-149 board
IC6301 pin 36 to 38 (PCONT1 to PCONT3)
NG
OK
OK
OK
Check the related IC on the MB-149 board.
OK
OK
Check each voltage with reference to the
schematic diagrams, and check that there is
no problem in them.
schematic diagrams, and check that there is
no problem in them.
OK
Check that a picture is outputted normally.
NG
Optimize the speaker settings.
NG
Check that the drive is
operating normally.
operating normally.
– Continued on next page –
OK
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
Check that harness is inserted
normally.
When harness is inserted normally,
exchange the SWITCHING
REGULATOR.
normally.
When harness is inserted normally,
exchange the SWITCHING
REGULATOR.
Exchange the damaged fuse.
Exchange the complete MB-149 board,
when the power is not turned on, even
if you exchange fuses.
Exchange the complete MB-149 board,
when the power is not turned on, even
if you exchange fuses.
NG
NG
Power supply IC is damaged.
Exchange the power supply IC.
Exchange the power supply IC.
NG
Refer to the “2. Video check
flow” on page 4.
flow” on page 4.
NG
Exchange the IC6301.
Part No.
Description
A-1857-997-A IC R5F3650KCDFB
(for
SERVICE)
NG
HBD-NF620/NF720
3
Check that each power
supply is supplied to the
audio block.
supply is supplied to the
audio block.
Refer to the “1. Power check flow” on page 2.
NG
Check that a sound is
normally outputted from
each speaker.
normally outputted from
each speaker.
OK
Check that each speaker is connected normally.
Front//Subwoofer
Front//Subwoofer
NG
Check that the signal is inputted into the
following pins.
AMP board
IC3001 pin 39, 40, 48, 49
following pins.
AMP board
IC3001 pin 39, 40, 48, 49
OK
Exchange the IC3001.
Part No.
Description
6-718-105-01 IC TAS5534DGGR
NG
Check that the signal is outputted from the
following pins.
AMP board
IC3102 pin 10, 11 (SP FRONT R)
following pins.
AMP board
IC3102 pin 10, 11 (SP FRONT R)
pin 16, 17 (SP FRONT L)
pin 2, 3, 8, 9 (SP SUBWOOFER)
OK
Exchange the IC3102.
Part No.
Description
6-718-787-01 IC STA516BE
NG
Perform and check
[Audio Settings] -
[Speaker Settings] -
[Test Tone] in the menu
screen, or reinsert the
speaker cables.
[Audio Settings] -
[Speaker Settings] -
[Test Tone] in the menu
screen, or reinsert the
speaker cables.
NG
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)
