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Pioneer SC-LX81 Service Manual
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83
SC-LX81
5
6
7
8
5
6
7
8
A
B
C
D
E
F
Click the Ok b
utton.
The firmware update will be star
ted.
After the updating is completed, click the
Ok button to return status page.
Confirm the Fir
mware
V
ersion.
Note:
Please restore the Network IP settings of the
customer's unit after the update is completed.
Click.
If you want to cancel, clic
k here.
Firmware version is updated.
Click.
82
84
Table of Contents
Table of Contents
3
Service Precautions
5
Notes on Soldering
5
Notes on Replacing Parts
5
Notes on Assembling
6
Specifications
8
Accessories
8
Specifications
9
Panel Facilities
10
Basic Items for Service
16
Check Points after Servicing
16
Pcb Locations
17
Jigs List
19
Block Diagram
20
Overall Wiring Diagram
20
Audio Block Diagram
22
Dsp Block Diagram
24
Hdmi Network Block Diagram
25
Microcomputer Block Diagram
26
Power Block Diagram
28
Diagnosis
30
Diagnosis Flowchart
30
Circuit Description
62
Service Mode
70
Test Mode
70
Disassembly
75
Each Setting and Adjustment
78
How to Update Firmware
78
Exploded Views and Parts List
84
Packing Section
84
Exterior Section
86
Chassis Section
88
Rear Panel Section
90
Front Panel Section
92
Schematic Diagram
94
Audio Assy
94
D-Mother Assy (1/4)
96
D-Mother Assy (2/4)
98
D-Mother Assy (3/4)
100
D-Mother Assy (4/4)
102
FRONT in and V-BRIDGE ASSYS
104
Control Assy
106
Hdmi Network Assy (1/6)
108
Hdmi Network Assy (2/6)
110
Hdmi Network Assy (3/6)
112
Hdmi Network Assy (4/6)
114
Hdmi Network Assy (5/6)
116
Hdmi Network Assy (6/6)
118
Interface Assy
120
Component Assy
122
Composite S Assy
124
Front Bridge Assy
126
DISPLAY, VOL and POWER SW ASSYS
128
PRE BRIDGE, ICE BUFFER, ICE SHIELD and PRIMARY GUARD ASSYS
130
ICE INTERFACE and ZOUT ASSYS
132
Icepower Amp (1/5)
134
Icepower Amp (2/5)
136
Icepower Amp (3/5)
138
Icepower Amp (4/5)
140
Icepower Amp (5/5)
142
Primary Assy
144
Reg Assy
146
Ice Reg Assy
148
B Reg Assy
150
B DIODE, DCDC, and HDMI RECT ASSYS
152
Pcb Connection Diagram
153
Audio Assy
154
D-Mother Assy
158
Front in Assy
162
Control Assy
163
Hdmi Network Assy
164
Interface Assy
168
COMPONENT and V BRIDGE ASSYS
172
Composite S Assy
176
Front Bridge Assy
178
DISPLAY, POWER SW and VOL ASSYS
180
PRE BRIDGE, ICE BUFFER and ICE SHIELD ASSYS
184
Ice Interface Assy
186
Icepower Amp Assy
188
ZOUT, PRIMARY GUARD and REG ASSYS
192
Primary Assy
196
Ice Reg Assy
198
B DIODE and B REG ASSYS
200
DCDC and HDMI RECT ASSYS
202
Electrical Parts List
203
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Pioneer SC-LX81 Specifications
General
Brand
Pioneer
Model
SC-LX81
Category
Receiver
Language
English
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