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 Vid
P
bl
3-5. Video Problem
Picture On Screen
Distorted Or Missing
Check LED 6x
times blink?
Refer to Power Troubleshoot (STANDBY LED
BLINK 6x times blinking
Yes
Backlight
turns ON?
Refer “Tuner
Yes
No
No
No
Check Eco
Power Saving
ON?
Refer to IM Eco
Power Saving
Yes
Change B*
board
Tuner, OK?
Video 1, OK?
Refer “Video 1
Problem”
Refer Tuner
Problem”
Yes
Yes
No
N
Power Saving
Setting
No
Refer “Video 2
Problem”
Yes
Yes
No
Component, OK?
Refer “Component
Problem”
Video 2, OK?
No
Segment
Size
B*
Board
G*
Board
HDMI, OK?
PC, OK?
Refer “HDMI
Problem”
Refer “PC
Problem”
Yes
Yes
No
No
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
25
Finish
Yes
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 1 Tuner Troubleshooting Flow
3-5-1. Tuner Troubleshooting Flow
Analog RF input no
picture
Change RF cable and antenna
Check RF source cable
and antenna, OK?
OK
NG
Check JL1003 =
+3.3V?
Change BAQ board
OK
NG
Check R1030 =
+3.3V?
R
t
OK?
Change BAQ board
OK
NG
NG
Raster, OK?
Tuning, OK?
Check LVDS
harness
connection
between BAQ
board, OK?
OK
OK
NG
26
Change BAQ board
Reconnect LVDS cable
or change new LVDS
cable
NG
OK
KLV-22, 26,32 BX350, 32BX35A, 40,46 BX450
RM-GA021
Troubleshooting
3-5. Video Problem
3 5 2 Video 1 Troubleshooting Flow
3-5-2. Video 1 Troubleshooting Flow
1) Flow Chart A
Video 1 Problem
Check Video input source
signal or cable.
OK
NG
Video Signal Source Problem or
cable problem
NG
Check Input
jack ”J3005”
OK
Change B* board
Check LVDS harness
connection between
B* board.
Reconnect LVDS cable or
change new LVDS cable
NG
Segment
Size
B*
Board
G*
Board
OK
Change B* board
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
27
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 2 Video 1 Troubleshooting Flow
3-5-2. Video 1 Troubleshooting Flow
2) Flow Chart B
Check
Ref1
Video1
NG picture
input
signal
1Vp-p at
FB3000
(B*Board)
IC5000 defect
(B* Board)
OK
OK
Confirm waveform at
C3033 (face to IC5000)
same as ref 1
(CB input pattern)
R3302 defect
Confirm R3043,
FB3000 & C3033
connection and
NG
NG
Segment
Size
B*
Board
G*
Board
(B* Board)
connection and
value
(B* Board)
Type
Type
P-2F
22
BAQ
GD1
P-2F
26
BAQ
G9
P-2F
32
BAQ
G9
28
P-2F
40
BAQ
G10
P-2F
46
BAQ
G11
Click on the first or last page to see other KLV-22BX350 / KLV-26BX350 / KLV-32BX350 / KLV-40BX450 / KLV-46BX450 service manuals if exist.