Sony KD-65X9500B Service Manual page 80

1) 3 times blinking (DC Alert & Communication Error)
3-time blinking
DC_ALERT
NG NG
Check D+1.0V
F9105,IC9103,
at JL9129 on
etc (B* Board)
the B* Board
OK OK
NG
Check
+3.3V_MAIN_1
F9102,IC9102,
at JL9116 on
etc (B* Board)
the B* Board the B Board
OK
NG
Check Check
IC9201,etc
+1.8V_MAIN on
(B* Board)
Pin 2 of IC9201
OK
NG
Check
+5.0V_MAIN
F9104 / IC9101
at JL9132on
,etc (B* Board)
the B* Board
KD-65/85X9500B
TUNER
DMD_TU_I2C
or I2CB bus check:
NG
Probe CL2101,
I2C bus dumping or
CL2102 / CL2318 CL2102 / CL2318,
AYU2 AYU2
CL2101 on
TU* Board
OK
Brownie
NG
SPI
SPIC check
dumping
Probe RB8522
resistor
or AYU2
OK
NG
I2C_CCP check
R8502 and R8506 /
I2C_CCP
R8507 and R8508
Pull Up Pull Up
OK
I2CA bus I2CA b
NG
I2CA bus check:
dumping
Probe CL5069,
resistor
CL5072
or AYU2
Or FW of
IC5605 is
O OK
broken broken
HDMI
I2CD bus
I2CD bus check: Dumping resistor
NG
Probe CL5423, or Ayu2
CL5428 or FW of IC3150
is broken
OK
BackEnd
I2CC bus
NG NG
I2CC bus check: I2CC bus check:
dumping dumping
Probe CL3371,
resistor
CL3372
or AYU2
or Scorpio
/FRC
OK
VBO
dumping
NG
V-by-One check:
resistor and
Probe CL8064,
capacitor
CL8066, R6020
or AYU2
or Scorpio
/FRC
TROUBLE SHOOTING
AUDIO
Check
Speaker Speaker
NG
Impedance
Speaker
at
SP
Connector
OK
Check
Audio +12.5V
NG
at pin 18/20
G* Board
of CN9101
on the B* Board
(except Adapter
model)
OK
Check
+12.5V / +19.5V NG
F4401/F4601,
at Power Amp
IC4901/IC4601
side of F4401
,etc
/ F4601 on
(B* Board)
the B* Board
OK
IC4901 / IC4601
,etc
(B* Board)
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