1. Confirm the symptom from the customer.
2. Select that symptom from the chart.
3. Bring all the boards listed for that symptom.
4. Follow the troubleshooting charts in the technical guides to isolate the board.
5. Chart Color Code
RED DOT: Most likely defective part
BLUE Triangle: Possible defective part
BLACK TEXT: Board and Part # that may correct the symptom
7) The
Troubleshooting Flowchart
Reference
2
3
BU1 BOARD
▲
BH BOARD
G1H BOARD
▲
U2 BOARD
INVERTER
BU1/BH LVDS CABLE
BH/TCON LVDS
LCD Panel
Flowchart Reference
B
C
Problem
POWER POWER POWER POWER
**ONLY IF TEMPERATURE ERROR OCCURS IMMEDIATELY
CTV-41
Sony KDL32XBR4 Technical Triage Summary Sheet
required to determine the actual defective part is listed for each column in the last row of each table.
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
4
5
6
7**
8
▲
▲
▲
C
C
D
C
C
INV
TEMP AUDIO COMM COMM
No
Power
No Green
Power LED
(Dead Set)
10
11
12
13
N/A
▲
N/A
N/A
N/A
N/A
N/A
N/A
N/A
C
C
D
N/A
B
N/A
Chapter 2 - Service and Troubleshooting
LAST UPDATED:
Video - missing or distorted
Stationary
colored
Video 2
No video
No Audio
lines or
0nly
all Inputs
dots
▲
▲
▲
▲
▲
G
F
F
H
CHASSIS:
WAX3
7/16/07
Part #
A-1268-671-A
A-1236-654-A
1-474-052-11
A-1289-342-A
1-789-795-11
1-833-964-11
1-834-188-21
1-802-411-11
41