DOWNLOAD Sony KDL-24R425A / KDL-32R424A / KDL-32R425A Service Manual ↓ Size: 4.5 MB | Pages: 32 in PDF or view online for FREE

Model
KDL-24R425A KDL-32R424A KDL-32R425A
Pages
32
Size
4.5 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-24r425a-kdl-32r424a-kdl-32r425a.pdf
Date
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Sony KDL-24R425A / KDL-32R424A / KDL-32R425A Service Manual ▷ View online

KDL-24R425A/32R424A/32R425A 5
SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location. 
1.  Confirm the symptom from the customer.
    Red Dot: (Primary) Most likely defective part.  
2.  Select that symptom from the chart.
    Blue Triangle: (Secondary) Possible defective part.
3.  Bring the primary component listed for that symptom.
5.  Chart Color Code.
Power
Audio
2X     3X    5X     6X   
Dead set
No 
Video             
Whole 
Screen 
Distortion
Isolated 
Area 
Distortion                            
No Audio          
MAIN BOARD
▲
▲
 
POWER SUPPLY
LCD PANEL
TCON
▲
▲
Video                  
Protection Modes
4.  Follow the associated flowcharts in the Training Manual to isolate the board.
Board 
*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN REFERENCE LIBRARY DATABASE 
FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER.
KDL-24R425A/32R424A/32R425A 6
SECTION 2 - TROUBLESHOOTING
FLOWCHARTS AND DIAGRAMS
OVERALL BLOCK DIAGRAM
COMPONENT/
COMPOSITE
RF
COMPOSITE
HDMI 1
POWER SUPPLY
LED
IR RX
LCD PANEL, TCON 
LED BACKLIGHTS
A
H
L
R
ANALOG AUDIO OUT
OPTICAL AUDIO OUT
MT5366
A/V DECODER
A/V PROCESS
TUNER
USB
HDMI 2
LVDS
AC IN
CLASS D 
AUDIO
AMP
G32 (32")
HEADPHONE AUDIO OUT
G24 (24")
MAIN BOARD
&
CONTROL
KEYS
KDL-24R425A/32R424A/32R425A 7
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
KDL-24R425A
AC IN (N)
AC IN (H)
1
2
A
CN1
G24 (24”)
 
POWER SUPPLY
MAIN BOARD
LED5 
1 
LED1
2
CN8502
LED6
LED2 
VLED
LED7
LED3
3
4
6~8
9
10 
LED8
LED4
11
12 
ACD
+16V
+5.2V
PS_ON 
1
2, 3 
4
5, 6
GND
DET
    DIM
DIM
7~9
10 
  
11
12
ON/OFF
13
14
15 
CN9102
CN701
ON/OFF
ON/OFF
1
2, 3 
4
5, 6
7~9
10 
  
11
12
13
14
15 
LCD PANEL, TCON
&
LED BACKLIGHTS
KDL-24R425A/32R424A/32R425A 8
SECTION 2 - TROUBLESHOOTING
KDL-32R424A/32R425A
AC IN (N)
AC IN (H)
1
2
A
G32 (32")
CN901
LCD PANEL, TCON
&
LED BACKLIGHTS
VLED 
1,12
LED1 -
3,10
CN8501
POWER SUPPLY
MAIN BOARD
ACD
+18V
+5.2V
PS_ON 
1
2, 3 
4
5, 6
GND
DET
    DIM
NC
7~9
10 
  
11
12
NC
ON/OFF
NC
13
14
15 
CN9101
1
2, 3 
4
5, 6
7~9
10 
  
11
12
13
14
15 
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