Pioneer SC-LX90 Service Manual page 88

Audio/video multi-channel amplifier
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5
AX
small
HDMI5V
regulator
HDMI6V
DD HDMI ASSY
AWX8750
PGOOD
A HDMI FAN SUPPLY
from PRIMARY ASSY
O
J
T
FRONT
HN MODULE
USB ASSY
ASSY AWV2535
AWX8781
small
regulator
FRONT Display Block
LCD
10ch & Ice Blue LED
Main LED
Power
LOGIC IC
LED
AD
MOTHER 2 ASSY
AWX8776
uCOM SUPPLY
IC8503
5.6V
NJM78M56FA
+10V
HDMI FAN
Q4014
2SD1858X
DMI ASSY
ICE RY Driver(+12V)
A
FAN Driver(±12V)
PFC ASSY
B
ON+12V
PQ20RX11
STBY SUPPLY
T21
FAN
IC4002
+5.6V
ATT7100
AXM7034
STBY
TRANSFORME
R
SW
POWER ON: OFF
STBY: ON
OM
BC
PRIMARY ASSY
AWX8756
5
6
2CH DD ASSY AWX8961
AZ
FET
T1502
ATS7414
FET
TRANSFORMER
IC4601
2
LTC3728LEG
FET
N
FET
FET:
AS
FET:
DD DSP ASSY
AWX8748
IC4301
FET
DSP+5V
LTC1735EG
N
FET
DSP-5V
4
IC4321
BD9718G
IC4351
NTWK+5V
LT3430EFE
AW
DD DISP ASSY
AWX8784
IC4501
3
LT1766EFE
DISP+8V
IC4701
2
LT3430EFE
FAN+12V
IC4713
NJM79M12
FAN-12V
INLET ASSY
AWX8731
FU1
BG
RY
ICE INPUT Part
(ICE INPUT 4CH ASSY AWX8946)
(ICE INPUT 6CH ASSY AWX8945)
6
AC
BF
BD
BE
ICEPOWER SMPS ASSY
ICEPOWER AMP ASSY
AWR7048 (Switching Mode Power Supply)
AWH7010
PRIMARY BLOCK
M
M
SECONDARY BLOCK
POWER AMPLIFIER SUPPLY
M
M
PROTECTION RY or OTHER CIRCUITS
SUPPLY
M
SC-09TX
7
B -1 from PRIMARY ASSY
PFC ASSY AWX8735
RY
REACTOR
RY
FAN AXM7025
FAN AXM7025
B -2 from PRIMARY ASSY
SWITCHING
TRANSFORMER
7
8
A
B
C
D
RY
FU2
E
F
33
8

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