Sony HBD-NF620 / HBD-NF720 Service Manual ▷ View online
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)
MEMO
HBD-NF620/NF720
5
HBD-NF620/NF720
REVISION HISTORY
Ver.
Date
Description of Revision
1.0
2012.03
New
1.1
2012.06
Addition of TROUBLESHOOTING (SUPPLEMENT-1)
(SMR-12017)
1.2
2012.07
Addition of Taiwan model (HBD-NF720)
How to search for a contact point of signal lines or the like in DIAGRAMS SECTION
If a contact point of a BLOCK DIAGRAM, PRINTED WIRING BOARD or SCHEMATIC DIAGRAM is shown in a different page, use
the PDF fi le search function to fi nd one.
If a contact point of a BLOCK DIAGRAM, PRINTED WIRING BOARD or SCHEMATIC DIAGRAM is shown in a different page, use
the PDF fi le search function to fi nd one.
e.g.) If a contact point is shown as
, follow the procedure below.
Procedure:
1. Press the [F] key while pressing the [Ctrl] key.
2. Input “>001Z” in the search box and press the [Enter] key.
3. The relevant part (page), where the contact point is shown, appears.
1. Press the [F] key while pressing the [Ctrl] key.
2. Input “>001Z” in the search box and press the [Enter] key.
3. The relevant part (page), where the contact point is shown, appears.
Note: If you still see the original page, press the [Enter] key again.
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