Sony KLV-22CX350 / KLV-32CX350 Service Manual ▷ View online
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Troubleshooting
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?
times blink?
BLINK
6x times blinking
Yes
No
No
Check Eco
Power Saving
Yes
Change B*
b
d
Tuner, OK?
Video 1, OK?
Refer “Video
1 Problem”
Refer “Tuner
Problem”
Yes
Yes
No
No
Power Saving
ON?
Refer to IM Eco
Power Saving
Setting
No
board
1 Problem
Refer “Video
2 Problem”
Yes
Yes
No
Refer
Video 2, OK?
No
HDMI, OK?
Refer “HDMI
Problem”
Yes
Y
No
Component, OK?
e e
“Component
Problem”
No
(*)
Size
B* Board Type
G* Board Type
22”
BAQ GD1
PC, OK?
Refer “PC
Problem”
Finish
Yes
Yes
No
25
26 / 32 “
BAQ
G9
40’’
BAQ G10
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Troubleshooting
3-5. Video Problem
3-5-1. Tuner Troubleshooting Flow
Analog RF input no picture
Change RF cable and antenna
Check RF source cable
and antenna, OK?
NG
Check JL1003 =
+3.3V?
Change BAQ board
OK
NG
Check R1030 =
+3.3V?
Change BAQ board
OK
NG
Raster, OK?
Ch
k LVDS
OK
NG
Reconnect LVDS cable or
Tuning, OK?
Check LVDS
harness
connection
between BAQ
board, OK?
OK
OK
NG
NG
26
Change BAQ board
change new LVDS cable
NG
OK
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Troubleshooting
3-5. Video Problem
3-5-2. Video 1 Troubleshooting Flow
1) Flow Chart A
Video 1 Problem
Check Video input source
NG
Video Signal Source Problem or
Check Video input source
signal or cable.
OK
NG
Video Signal Source Problem or
cable problem
Ch
k I
t
NG
Check LVDS
Check Input
jack ”J3005”
NG
OK
Change B* board
C ec
S
harness
connection between
B* board.
Reconnect LVDS cable
or change new LVDS
cable
NG
OK
Size
B* Board Type
G* Board Type
22”
BAQ GD1
(*)
Change B* board
26 / 32 “
BAQ
G9
40’’
BAQ G10
27
KLV- 22, 26, 32 CX350, 40 CX450
RM-GA022
Troubleshooting
3-5. Video Problem
3-5-2. Video 1 Troubleshooting Flow
2) Flow Chart B
Ref1
Video1
NG picture
Check
input
signal
1Vp-p at
IC5000 defect
(B* Board)
OK
OK
Confirm waveform at
C3033 (face to IC5000)
same as ref 1
FB3000
(B*Board)
NG
NG
same as ref 1
(CB input pattern)
R3302 defect
(B* Board)
Confirm R3043,
FB3000 & C3033
connection and
value
(B* Board)
(*)
Size
B* Board Type
G* Board Type
22”
BAQ GD1
28
26 / 32 “
BAQ
G9
40’’
BAQ G10
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