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5
[2] Protection Circuit Process List (XVDDERR)
Item
Purpose
USB
Detection of failure
power
in regulator circuit
failure
for external supply
detection
V+6_AD
Detection of failure
failure
in +6V power
detection
supply circuit for
AD/DA converter
V+5_V
To protect an over
over
voltage of +5V
voltage
power supply for
protection
video IC
XVDDERR Circuit
C
FRONT HDMI USB ASSY
V+5_USB_DC
GNDCH
A
AUDIO ASSY
V+6_AD
CN2861
-16
5
6
Detection Method
Status of Equipment
Detected when USB
Shuts down
voltage reaches 7V or
higher.
XVDDERR port is set to
"L" (IC6001 60pin)
Detected when V+6_AD
Shuts down
voltage reaches 3.8V or
lower.
XVDDERR port is set to
"L" (IC6001 60pin)
Detected when V+5_V
Shuts down
voltage is over 6.6V.
XVDDERR port is set to
"L"(IC6001 60pin)
V+5_HD
CN8002
-4
Q8004
2SC4081(QRS)
DIGITAL
E
MAIN ASSY
D-AUDIO
Y
BRIDGE ASSY
CN3772
CN3771
-16
-9
6
7
Warning Indication
Blinks Wireless LED
Blinks Wireless LED
Blinks Wireless LED
J
DISPLAY ASSY
CN6003
-4
R6214
R6222
22
10
XVDDERR
V+5_EV
*R752
100
CN1502
-9
*R1968
DET+6AD
10
SC-95
7
8
Remarks
Restoration
possible with
Power ON
Restoration
possible with
Power ON
UCOM
IC6001
R6087
60
10
GNDD
CN6001
-2
U
V-REG_S ASSY
-38
CN7903
CN7902
-12
CN601
-28
*R744
10
*Q603
DTA124EUA
*Q602
DTC124EUA
GNDD
8
A
B
C
D
E
F
37
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