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Aiwa Manuals
Cassette Player
AD-F990
Service manual
Aiwa AD-F990 Service Manual
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Also See for AD-F990
:
Operating instructions manual
(29 pages)
,
Service manual
(40 pages)
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Contents
Table of Contents
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Table of Contents
Measuring Point
General Instructions for Mechanism Repair
Specifications
Spring Application Position
Exploded View
Parts List
Mechanical Parts
Description of Microcomputer Terminal
Terminal Name IC-1
Terminal Functions
Terminal Name IC-2
Terminal Name IC-3
AD-F990 Block Diagram
Circuit Description
AUTO DOLBY-NR Selector System
Block Diagram
Description of each Block
L.p.f.
Integrating Circuit
Analog SW
Description of Operation
Dolby NR Circuit NR Control
During Recording
Auto Dolby-NR B-Type
Control System During Recording
Common AUTO Operation During Playback
Operation During Playback
Auto Tape Monitor System
During Play
T/S Selection
During Power on
Auto REC Level by Use of Electronic VR
IC Pin Description
Pin Arrangement
Pin Connection Diagram
Pin Function IC5V
IC3V Relation between Attenuation Value and VR Position
Electronic VR IC
Hpf
Circuit Operating
UP Operation
AUTO Circuit Operation
Peak Detector Circuit Operation
VR Position Indicator Circuit Operation
Outline of Operation
Automatic
Up
Down
FL Bar Meter Circuit
FL Level Meter Drive IC
Peak Hold Control Section
Single Bar PEAK Section
Accessories/Package List
Electrical Main Parts List
Schematic Diagram
Wiring
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General Instructions for Mechanism Repair
2
Mechanical Parts
3
Electrical Main Parts List
4
Schematic Diagram
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