Sony KDE-55XBR950 (serv.man2) Service Manual ▷ View online
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4.7.3 Problem Analysis Procedure
(1) Select the problem analysis menu from the main menu using the ↑key or ↓key and press
<ENTER> key to start the program.
(2) Check the error code (hexadecimal number) from the Latest error code read-out menu and
locate the faulty position from the following table.
Example of displaying breakdown analysis
(3) Confirm the latest error code, and then the faulty point is specified from the Error code table.
(4) Select RETURN using the ↑key or ↓key and press <ENTER> key to start the program, then
the screen returns to the menu screen.
* When EXIT is selected, the screen returns to the WINDOWS or DOS screen.
Main menu
Problem analysis menu
The state of the module
The latest error code
A past error code is shown in
new the order.
new the order.
All error code is cleared to 0.
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Error code table
Suspected faulty board
(In the order of higher probability of defect)
ERR
code
Detect
position
(board)
Contents
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Remarks
00
LOGIC
STANDBY power is stopped
PSU
PSU temperature
has probably
increased
has probably
increased
02
ROM data of waveform is abnormal LOGIC
04
3.3V power voltage has dropped
LOGIC
PSU
06
3.3V power startup is faulty
X-SUS
Y-SUS
ADMU1-U11
ADND1-D11
ADND1-D11
PSU
ABUSU1-U4
ABUSD1-D4
ABUSD1-D4
LOGIC
08
1V power voltage has dropped
LOGIC
PSU
0A
1V power startup is faulty
X-SUS
Y-SUS ADM1-22 PSU
ABUS
LOGIC
18
Internal
I2C_SCL1_LOW
level
LOGIC
19
Internal I2C_ACK does not respond LOGIC
1C
EEPROM initial setting is defective LOGIC
1D
EEPROM write-down is defective
LOGIC
1E
EEPROM user initial setting is
defective
defective
LOGIC
1F
LOGIC
EEPROM factory setting reading is
defective
defective
LOGIC
24
Vex power voltage has decreased
X-SUS
LOGIC
25
Vex power voltage is excessive
X-SUS
26
Vex power startup is faulty.
X-SUS
LOGIC
28
Vx power voltage has dropped
X-SUS
LOGIC
29
Vx power voltage is excessive
X-SUS
2A
Vx power startup is faulty.
X-SUS
LOGIC
39
Vs power current is excessive
(during operation)
(during operation)
X-SUS Panel LOGIC
3B
Vs power current is excessive
(during startup)
(during startup)
X-SUS Panel LOGIC
3C
Vq power voltage has dropped
X-SUS
3D
Vq power voltage is excessive
X-SUS
3E
X-SUS
Vq power startup is faulty.
X-SUS
44
Vey power voltage has dropped
Y-SUS
LOGIC
45
Vey power voltage is excessive
Y-SUS
46
Vey power startup is faulty.
Y-SUS
LOGIC
48
Vu power voltage has dropped
Y-SUS
49
Vu power voltage is excessive
Y-SUS
4A
Vu power startup is faulty.
Y-SUS
59
Vs power current is excessive
(during operation)
(during operation)
Y-SUS Panel LOGIC
5B
Vs power current is excessive
(during startup)
(during startup)
Y-SUS Panel LOGIC
5D
Y-SUS
SDM current is excessive
SDM
Y-SUS Panel
LOGIC
61
Vs power voltage is excessive
PSU
X-SUS LOGIC
62
Vs power startup is faulty.
X-SUS
Y-SUS PSU
LOGIC
64
Ve power voltage has dropped
LOGIC
X-SUS Y-SUS
65
Ve power voltage is excessive
X-SUS
Y-SUS
66
Ve power startup is faulty.
LOGIC
X-SUS Y-SUS
68
Vw power voltage has dropped
Y-SUS
X-SUS LOGIC
69
Vw power voltage is excessive
X-SUS
6A
X-SUS
Y-SUS
Y-SUS
Vw power startup is faulty.
Y-SUS
X-SUS LOGIC
81
Va power voltage is excessive
PSU
X-SUS LOGIC
82
Va power startup is faulty.
ADMU1-U11
ADND1-D11
ADND1-D11
PSU X-SUS LOGIC
ABUS
99
Va power current is excessive
(during operation)
(during operation)
ADMU1-U11
ADND1-D11
ADND1-D11
ABUS
X-SUS PSU LOGIC
9B
ABUS
Va power current is excessive
(during startup)
(during startup)
ADMU1-U11
ADND1-D11
ADND1-D11
ABUS
X-SUS PSU LOGIC
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Suspected faulty board
(In the order of higher probability of defect)
ERR
code
Detect
position
(board)
Contents
Contents
Contents
(1)
(2)
(3)
(4)
(5)
(6)
(7)
Remarks
9D
Va power current is excessive (during
operation)
operation)
ADM1-8 ABUS PSU
LOGIC
Excess current is
detected in ACCC
operation.
detected in ACCC
operation.
A5
ADM-D1 ADM-D1 has abnormal heat generation. ADM-D1 PSU
LOGIC
A7
ADM-U1 ADM-U1 has abnormal heat generation. ADM-U1 PSU
LOGIC
A9
ADM-D2 ADM-D2 has abnormal heat generation. ADM-D2 PSU
LOGIC
AB
ADM-U2 ADM-U2 has abnormal heat generation. ADM-U2 PSU
LOGIC
AD
ADM-D3 ADM-D3 has abnormal heat generation. ADM-D3 PSU
LOGIC
AF
ADM-U3 ADM-U3 has abnormal heat generation. ADM-U3 PSU
LOGIC
B1
ADM-U4 ADM-U4 has abnormal heat generation. ADM-U4 PSU
LOGIC
B3
ADM-D4 ADM-D4 has abnormal heat generation. ADM-D4 PSU
LOGIC
B5
ADM-U5 ADM-U5 has abnormal heat generation. ADM-U5 PSU
LOGIC
B7
ADM-D5 ADM-D5 has abnormal heat generation. ADM-D5 PSU
LOGIC
B9
ADM-U6 ADM-U6 has abnormal heat generation. ADM-U6 PSU
LOGIC
BB
ADM-D6 ADM-D6 has abnormal heat generation. ADM-D6 PSU
LOGIC
BD
ADM-U7 ADM-U7 has abnormal heat generation. ADM-U7 PSU
LOGIC
BF
ADM-D7 ADM-D7 has abnormal heat generation. ADM-D7 PSU
LOGIC
C5
ADM-U8 ADM-U8has abnormal heat generation. ADM-U8 PSU
LOGIC
C7
ADM-D8 ADM-D8 has abnormal heat generation. ADM-D8 PSU
LOGIC
C9
ADM-U9 ADM-U9has abnormal heat generation. ADM-U9 PSU
LOGIC
CB
ADM-D9 ADM-D9 has abnormal heat generation. ADM-D9 PSU
LOGIC
CD ADM-U10
ADM-U10has
abnormal
heat
generation.
ADM-U10 PSU LOGIC
CF
ADM-D10 ADM-D10 has abnormal heat
generation.
ADM-D10 PSU LOGIC
D1 ADM-U11
ADM-U11has
abnormal
heat
generation.
ADM-U11 PSU LOGIC
D3
ADM-D11 ADM-D11 has abnormal heat
generation.
ADM-D11 PSU LOGIC
E2
LOGIC
5V power startup is faulty.
X-SUS
Y-SUS PANEL PSU
ABUS
LOGIC
FC
PSU
Detection error of Vs and Va voltage.
PSU
LOGIC
It can possibly
occur depending
on screen display.
occur depending
on screen display.
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5 DISASSEMBLING AND REASSEMBLING
Unless otherwise specified, use the torque screwdriver for screw tightening, following the
tightening torques.
tightening torques.
Screw size
Tightening torque
M 3
0.69±0.049Nm (7±0.5kg·cm)
M 4
1.18±0.098Nm (12±1.0kg·cm)
5.1 Exploded View
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⑱
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