Sony KDL-40W590B / KDL-40W600B / KDL-48W590B / KDL-48W600B Service Manual ▷ View online
KDL-40W590B/40W600B/48W590B/48W600B 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.
No
Power
Remote
Audio Smart
Core
2X 3X 4X 5X 6X 7X 8X 9X 10X
No White
Power
LED
Steady
lines or
dots
No Video
One of
Inputs
No Video
All Inputs
No Remote
Wireless
can't
connect
Bluetooth
can't
connect
No
Audio
No LED
MAIN BOARD
▲
▲ ▲
▲
▲
▲
▲
▲
▲
TUNER BOARD
▲
▲
▲
▲
LCD PANEL
▲
▲
TCON
▲
▲
▲
▲
▲
LVDS FFC
▲ ▲
▲
▲
H BOARD
SPEAKER
▲
LD BOARD
▲
BT BOARD
WIFI
Problem
POWER
AUDIO/
POWER
POWER
LD
TCON
BACK-
LIGHT
TEMP
SOFT-
WARE
4. Follow the associated flowcharts in the Training Manual to isolate the board.
Board Reference
Symptoms - Shutdown. Power LED blinking
red diagnostics sequences
Video
Network
*NOTE: REFER TO LCD PANELS SERVICE MANUAL IN REFERENCE LIBRARY DATABASE
FOR CORRECT REPLACEMENT PARTS BASED ON SERIAL NUMBER.
EMIT-
TER
To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Service Portal
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.
KDL-40W590B/40W600B/48W590B/48W600B 6
SECTION 2 - TROUBLESHOOTING
FLOWCHARTS AND DIAGRAMS
OVERALL BLOCK DIAGRAM
VIDEO 2 CVBS/COMP
VIDEO 1 CVBS
HDMI 1 / MHL
SWITCH
UNIT
HFR
TCON
L
R
HEADPHONES
OUT
OPTICAL
AUDIO OUT
HDMI
SWITCH
EQ
ETHERNET
USB
HDMI 4
LVDS
AC IN
A/V
DECODER
VIDEO
PROCESS
WIFI
IR RX
LED’s
HJM
LD
HDMI 2 /ARC
HDMI 3
USB
TUNER
AUDIO
AMP
TUNER
DEMODULATOR
ADC / DACAMP
MAIN BOARD
TUNER BOARD
LCD PANEL
LED BACKLIGHTS
LOCAL DIMMING
AC ADAPTOR
SWITCH
UNIT
BAXL
USB
HUB
HUB
ETHER
PHY
AUDIO
AMP
RF
KDL-40W590B/40W600B/48W590B/48W600B 7
SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM
LOCAL DIMMING
LD
DC IN
MAIN BOARD
BAXL
PANEL
MODULE
CN2001
PWM0
20
2
PWM1
19
3
IP_REF
18
8
PWM2
17
4
AC_MON
16
12
MAIN_PWR
15
11
GND
14
25
STBY_+3.3V
13
14
GND
12
24
REG+12V
11
17
GND
10
23
19.5V_HOLD
9
18
GND
8
22
19.5V_SS
7
19
GND
6
16
GND
5
15
+19.5V
4
21
+19.5V
3
20
LD_ERR
2
28
LD_STBY
1
9
AC_IN
1
DC-IN
2
DC_GND
CN9101
2
28
BL_ERR
14
25
GND
12
24
GND
10
23
GND
8
22
GND
4
21
+19.5V(12V)
3
20
+19.5V(12V)
7
19
+19.5V_SS(12V)
9
18
+19.5V_HOLD(12V)
11
17
REG+12V
6
16
GND
5
15
GND
13
14
STBY+3.3V
16
12
AC_OFF_DET
15
11
POWER_ON
1
9
LD_STBY
18
8
IP_REF
17
4
LD_PWM_2 / SPI0_2(DATAF)
19
3
LD_PWM_1 / SPI0_1(LATF)
20
2
LD_PWM_0 /SPI0_0(EMIT IN)
NC
30
GND
NC
29
GND
NC
27
BL_ON
NC
26
DIGITAL_STBY
NC
13
TCON_ON
NC
10
SA_MODE
NC
7
FB_REF
NC
6
LD_PWR_4 / SPI0_RDATA / BLU_TEMP
NC
5
LD_PWM_3 / SPI0_3(CLKF)
NC
1
LD_MODE_SW
KDL-40W590B/40W600B/48W590B/48W600B 8
SECTION 2 - TROUBLESHOOTING
NO POWER FLOWCHART
No Power
Yes
No
See Standby LED
Blinking chart
Does TV turn ON?
Is red light blinking
on front of TV?
Yes
No
AC Adaptor*
Substitute 19.5V AC
Adaptor with another.
Main Board*
Check STBY 3.3V
Pin 13 CN2001
LD Board.
Is Pin 13 CN2001
on 3.3 volts?
Yes
LD Board*
*For Part Number information, refer to
“Section 4 - Exploded View/Part Number Information” on page 17
.
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