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 3 Video 2/ Component Troubleshooting Flow
3-5-3. Video 2/ Component Troubleshooting Flow
Component Problem
OK
NG
Check Video 2 /
Component Setting.
Refer to IM Video2 /
Component Setting
Check component input
source signal or cable.
NG
NG
Component Signal Source Problem
or cable problem
Check Input
Change B* board
OK
Check LVDS harness
connection between
Reconnect LVDS cable or
change new LVDS cable
jack ”J3006”( B*)
NG
Change B board
OK
Segment
Size
B*
Board
G*
Board
co
ec o be wee
B* board.
c
ge ew V S c b e
Change B* board
OK
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
29
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 4 Video 2 Troubleshooting Flow
3-5-4. Video 2 Troubleshooting Flow
Check
Ref2
Video2
NG picture
input
signal
1Vp-p at
FB3001
(B* Board)
IC5000 defect
(B* Board)
OK
OK
Confirm waveform at
C3025 (face to IC5000)
same as ref2
(CB input pattern)
R3014 or R3017
defect
Confirm FB3001 &
C3025 connection
and value
NG
NG
Segment
Size
B*
Board
G*
Board
(B* Board)
and value
(B* Board)
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
30
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
3-5-5. Component Troubleshooting Flow
Ref3
Ref4
Ref5
Confirm waveform at
C3027 (face to IC5000)
Component
NG picture
IC5000 defect
(B* Board)
OK
OK
Check input signal 0.7Vp-p
at R3034_Y0P line ,
R3036_PB0P line &
R3037_PR0P line
(B* Board)
C3027 (face to IC5000)
same as Ref3. Confirm
waveform at C3029 (face
to IC5000) same as Ref4.
Confirm waveform at
C3030 (face to IC5000)
same as Ref5. Input CB
R3017 orR3018 or
Confirm R3014,
R3034 C3027
NG
NG
Confirm R3015,
Confirm R3016,
pattern.
Segment
Size
B*
B
d
G*
B
d
R3019 defect
(B* Board)
R3034, C3027
(Y0P line)connection
and value
(B* Board)
,
R3036, C3029 (PB0P
line)connection and
value (B* Board)
,
R3037, C3030 (PR0P
line)connection and
value (B* Board)
Board
Type
Board
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
31
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 6 A t S it hi
C
t / Vid
2 T
bl
h
ti
fl
3-5-6. Auto Switching Component / Video 2 Troubleshooting flow
Input
Pr-input
O
O
Take out
Pr-input at
Auto switching NG
at J3006
and check
at R8123
= 5V?
(B* Board)
IC5000 defect
(B* Board)
NG
OK
NG
OK
J3006 and
check at
R8123 =
0V?
(B* Board)
R3039 defect
(B* Board)
NG
NG
J3006 defect
(B* Board)
Segment
Size
B*
Board
G*
Board
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
32
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
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