Sony KLV-22BX350 / KLV-26BX350 / KLV-32BX350 / KLV-40BX450 / KLV-46BX450 Service Manual ▷ View online
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-5. Video Problem
3 5 7 PC T
bl
h
ti
fl
3-5-7. PC Troubleshooting flow
1) Flow Chart A
PC Problem
Check PC input source
signal or cable.
OK
NG
PC Signal Source Problem or cable
problem
NG
Check PC jack
Confirm PC input source format /
resolution supported by TV?
OK
Change PC input source to TV
supported format
NG
Check LVDS harness
i
b
Reconnect LVDS cable or
h
S
bl
Check PC jack
“CN3001”(B*)
NG
OK
Change B* board
Segment
Size
B*
Board
G*
Board
connection between
B* board.
change new LVDS cable
OK
Change B* board
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
33
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-5. Video Problem
3 5 7 PC T
bl
h
ti
fl
3-5-7. PC Troubleshooting flow
2) Flow Chart B
PC
NG picture
Confirm waveform at
C3046 (face to IC5000)
RP-signal
GP-signal
GP-signal
BP-signal
Check
input
signal
0.7Vp-p
at BP, GP
& RP line
IC5000
defect
OK
Check
pull up 5V
at R3066
& R3067
Check 5V
at
C3042_H
SYNC &
C3043_V
SYNC
OK
OK
OK
C3046 (face to IC5000)
same as BP-signal.
Confirm waveform at
C3048 (face to IC5000)
same as GP-signal.
Confirm waveform at
C3050 (face to IC5000)
RP i
l
& RP line
R3059 orR3060 or
R3061 defect
Confirm RB3002 &
C3046 (BP
line)connection and
NG
NG
Confirm RB3002 &
C3050 (RP
line)connection and
Confirm D3000,
R3066 & R3067
connection and
SYNC
Confirm RB3001
connection and
l
NG
NG
same as RP-signal.
Input CB pattern.
R3061 defect
line)connection and
value
Confirm RB3002 & C3048
(GP line)connection and value
line)connection and
value
connection and
value
value
34
Parts Location : BAQ Board
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-5. Video Problem
3 5 8 HDMI
T
bl
h
ti
fl
3-5-8. HDMI – Troubleshooting flow
1) Flow Chart A
HDMI Problem
Check HDMI input source
signal or cable.
OK
NG
HDMI Signal Source Problem or
cable problem
NG
Check HDMI
Change B* board
Confirm HDMI input source format /
resolution supported by TV?
OK
Change HDMI input source to TV
supported format
NG
Check LVDS harness
connection between
Reconnect LVDS cable or
change new LVDS cable
jack.
NG
OK
Change B* board
Segment
Size
B*
Board
G*
Board
B* board.
OK
Change B* board
Board
Type
Board
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
35
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-5. Video Problem
3 5 8 HDMI
T
bl
h
ti
fl
(HDMI1 / HDMI2)
3-5-8. HDMI – Troubleshooting flow (HDMI1 / HDMI2)
2) Flow Chart B
Check 5V on
Check
OK
OK
OK
CN3601(pin18),
HPD(CL3603)
IC5000(pin79 &
pin80)
Check
CN3601(pin1,3,4,6,
7,9,10,12) = 3.3V?
CN3601(pin1,3,4,6,
7,9,10,12) = 3.3V?
HDMI1,
no
picture
picture
Suspect IC5000
problem
problem
OK
OK
NG
NG
Short circuit check
on L3602 & L3603
on L3602 & L3603
*(Power off)
(Refer Chart C)
NG
Check input source,
R3612, R3625,
R3633, R3634,
R3629, R3630
connection
R3612, R3625,
R3633, R3634,
R3629, R3630
connection
Check L3602, L3603
connection
connection
Check L3602, L3603
on all pins condition
on all pins condition
Check 5V on
CN3600(pin18),
HPD(CL3600)
IC5000(pin6 &
pin7)
Check
CN3600(pin1,3,4,6,
7,9,10,12) = 3.3V?
CN3600(pin1,3,4,6,
7,9,10,12) = 3.3V?
HDMI2,
no
picture
picture
Suspect IC5000
problem
problem
OK
OK
Short circuit check
on L3600 & L3601
on L3600 & L3601
*(Power off)
(Refer Chart C)
OK
pin7)
Check input source,
R3602, R3626,
R3631, R3632,
R3627 R3628
R3602, R3626,
R3631, R3632,
R3627 R3628
Check L3600, L3601
connection
connection
NG
NG
(Refer Chart C)
Check L3600, L3601
on all pins condition
on all pins condition
NG
36
R3627, R3628
connection
connection
Parts Location : BAQ Board
Click on the first or last page to see other KLV-22BX350 / KLV-26BX350 / KLV-32BX350 / KLV-40BX450 / KLV-46BX450 service manuals if exist.