Sony KLV-22CX350 / KLV-32CX350 Service Manual ▷ View online
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Troubleshooting
3-9. USB Troubleshooting Flow
TV ON condition,
USB multimedia
cannot playback
cannot playback
Ch
k TV
Check
USB connector,
Check TV
supported
media files
media files
USB Connector
File type
not supported
OK
NG
NG
,
CN3000 (B* Board)
Check Voltage at
Pin 4 (EN) of
IC3001
USB Connector
IC5000,MT5306
GPIO block
OK
NG
Expected result :
Voltage at Pin
4(EN) of IC3001 =
4(EN) of IC3001 =
Check Voltage
at Pin 5 (IN) of
IC3001
(B* Board)
DC-DC Converter
OK
OK
NG
3.3V ± 5%
Expected result :
Voltage at Pin
5(IN) of IC3001 =
5V ± 5%
5(IN) of IC3001 =
5V ± 5%
Check
JL3005 on
B*Board
IC3001, TPS2051C
OK
NG
OK
Expected result :
Voltage at point
JL3005 = 5V ± 5%
JL3005 = 5V ± 5%
Check
the impedance
between
USB data line
and GND.
IC5000, MT5306
USB block
NG
OK
Expected result :
Impedance between
USB Data Line,
CN3000
USB Data Line,
CN3000
Pin2
GND
≈ Mῼ
(*)
Size
B* Board Type
G* Board Type
22”
BAQ GD1
41
USB Device
Error
OK
Pin2 – GND
≈ Mῼ
Pin3 – GND
≈ Mῼ
26 / 32 “
BAQ
G9
40’’
BAQ G10
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Parts
Location
Parts
PWB Drawing Parts Location
Trouble Shooting
3-1. Troubleshooting Reference
3-1-1. BAQ BOARD
CN3601
i) Pin 1
ii) Pin 3
iii) Pin 4
iv) Pin 6
v) Pin 7
i) Pin 1
ii) Pin 3
iii) Pin 4
iv) Pin 6
v) Pin 7
Pin 18
C
Pin 1
Pin 3
D
E
B
Note: Refer to each Troubleshooting for details information.
F
Pin 7
Pin 9
Pin 12
L3602
L3603
v) Pin 7
vi) Pin 9
viii) Pin 10
ix) Pin 12
x)
vi) Pin 9
viii) Pin 10
ix) Pin 12
x)
Pin 18
L3602
L3603
L3603
C
A
Pin 4
Pin 6
Pin 10
CN3601
CN6001
i) Pin 5
ii) Pin 17
iii)Pin 19
i) Pin 5
ii) Pin 17
iii)Pin 19
JL6004
D
E
JL6004
BAQ BOARD
G
H
CN6001
Pin 19
Pin 17
JL6008
CN3600
i) Pin 1
ii) Pin 3
i) Pin 1
ii) Pin 3
Parts
Location
Parts
PWB Drawing Parts Location
CN3001
A
G
F
JL6004
JL6008
Pin 5
Pin 19
Pin 7
Pin 9
Pin 10
)
iii) Pin 4
iv) Pin 6
v) Pin 7
vi) Pin 9
vii)Pin 10
ix) Pin 12
x) Pin 18
iv) Pin 6
v) Pin 7
vi) Pin 9
vii)Pin 10
ix) Pin 12
x) Pin 18
CN3001
CN3600
Pin 1
Pin 18
Pin 3
Pin 4
Pin 6
Pin 12
)
CN5000
i)
i)
Pin 1
ii)
Pin 7
iii)
Pin 9
CN4000
B
CN4000
H
Pin 1
CN5000
Pin 7
Pin 9
42
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Trouble Shooting
3-1-1. BAQ BOARD
Parts
Location
Parts
PWB Drawing Parts Location
IC4002
N
N
K
P
L
I
M
IC4002
IC5000
i) Pin 6
ii) Pin 79
iii) Pin 80
i) Pin 6
ii) Pin 79
iii) Pin 80
O
BAQ BOARD
O
Pin 79
Pin 80
iii) Pin 80
Parts
Location
Parts
PWB Drawing Parts Location
F4000
I
IC5000
IC5000
JL6007
F4000
K
JL6007
F4000
Pin 6
IC8000
(RTC IC)
(RTC IC)
F6000
JL600
2
P
L
M
F6000
L6002
IC8000
43
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Trouble Shooting
3-1-1. BAQ BOARD
Parts
Location
Parts
PWB Drawing Parts Location
JL6011
T
Q
R
U
W
JL1003
BAQ BOARD
U
R
S
JL6011
W
JL1003
U
T
V
JL1003
JL6013
Parts
Location
Parts
PWB Drawing Parts Location
V
JL6013
JL6010
JL6015
JL6012
Q
R
JL6015
JL6012
W
JL6014
S
JL6014
JL6010
W
44
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