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Harman Kardon
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AVR500
Harman Kardon AVR500 User Manual
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22
Models: AVR300, AVR
500
Subject: Volume Lev
el Changes
Model
Serial Num
ber
120V
Serial Num
ber
230V RDS
STAT
US
ACTION
AVR300
AVR500
TH0001-
01000
To
TH0001-
08402
TH0002-
01000
To
TH0002-
05565
TH0005-
01000
To
TH0005-
01001
TH0006-
01000
To
TH0006-
01001
Volume
level changes by
itself or
when volume
knob is
tapped
Change VR901
Rotary encoder
AVR300
AVR500
TH0001-
08403
Or higher
TH0002-
05566
Or higher
TH0005-
01002
Or higher
TH0006-
01002
Or higher
Modified by factory
NONE REQUIRED
21
23
Table of Contents
Table of Contents
1
Service Manual
1
Specifications
2
Product Safety Notice
4
Esd Warnings
4
Leakage Test
5
Front Panel
6
Controls and Functions
6
FM STEREO Separation Adjustment
9
Service Procedure
9
Test Equipment Required
9
Alignment Procedures
9
AM Auto Stop Adjustment
10
Main Amp Ldling Current Adjustment
10
Main Amp DC OFFSET VOLTAGE Adjustment
10
Cautions for Main Amp Adjustment
10
Alignment and Test Points
11
Tuner P.C. Board
12
Surround P.C. Board
12
Dolby Digital
13
Surround Circuit
13
Circuit Description
13
PCM Input
14
Sound Field Effect
14
Bass Management
15
Block Diagram
16
Removal and Modification of the Dsp Board
17
Bulletin Hk2000-02
17
Ground Reinforcement
18
Replace
18
Bulletin Hk2000-04
19
Location of IC Upgrade for the AVR500/AVR7000
20
Modification of the Dsp Board
20
Replace Vr901 Volume Encoder
21
Bulletin Hk2000-05
21
Disassembly Procedure
23
Main Amp Pcb Block
23
Power Pcb Block
23
Sub Pcb Block
23
General Unit Parts List
24
General Unit Exploded View
26
Pc . Boards
27
Bottom View
28
Audio P.C. Board
28
Top View
28
Main Amp P.C. Board
29
Front P.C. Board
30
Headphone P.C. Board
30
Power P.C. Board
30
Stand-By Switch
30
C-Video
31
Rear Amp
31
S-Video
31
Sub P.C. Board
31
Electric Part List
32
Hex Inverter
55
Octal Buffer/Line Driver
55
IC Block Diagrams
55
Octal D-Type Flip-Flop with 3-State Output
56
Low Saturation Voltage Typer 3-Pin Regulator
57
AC-3 Decoder
61
96Khz Digital Audio Receiver
62
4-M-Bit CMOS Mask ROM
63
Quad 2-Input NAND Schmitt Trigger
64
Fm/Am if IC
65
Video Switch IC
66
Electronic Volume Control
67
FM MPX Demodulator
67
On-Screen Display
68
No-Adjustment Sync Separator & Sync Detector
69
Dual J-Fet Input Op-Amp
70
Video Switching
70
Op Amp IC
71
Analog Function Sw.
72
Cpu Pin Configuration
75
Key Matrix
76
Define Option
76
Flt Pin Configuration
76
Anode & Grid Assignment
81
Pin Assignment
82
Schematic Diagrams
83
Audio Input Ass'y
88
Pin Connection Diagram
92
Wiring Diagram
93
Packing Material and Parts List
94
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Harman Kardon AVR500 Specifications
General
Brand
Harman Kardon
Model
AVR500
Category
Receiver
Language
English
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