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ITT 3985
Manual de Servicio

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Contiene diagramas del circuito
Descargable
Formato PDF
Manual completo
Idiomas: English

Precio: $4.99

Descripción del ITT 3985 Manual de Servicio

Manual de servicio completo en formato digital (archivo PDF). Los manuales de servicio por lo general contienen diagramas de circuitos, tarjetas de circuitos impresos, consejos para reparación, diagramas de cableado, diagramas de bloque y lista de refacciones. El Manual de Servicio (a veces llamado Manual de Reparación) es usado principalmente por los técnicos.

Si tan solo quiere saber cómo utilizar su televisión, reproductor de vídeo, reproductor de mp3, etc. Quizá lo que necesita es el Manual del Propietario. Después de colocar la orden le enviaremos las instrucciones de descarga a su dirección de e-mail.

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Tabla de contenido

Technical Specifications, Precautions
Disassembly
Layout of Main Mechanical Parts
Periodic Maintenance
Key to Abbreviation
Mechanism Control Block Diagram
Audio Block Diagram Type B, C, D
Drum Servo Block Diagram
Capstan Servo Block Diagram
Audio Block Diagram Type A
Audio Demodulator Block Diagram Type A
Luminance Signal Block Diagram
Color Signal Block Diagram
Tuner/IF Block Diagram Type A, B
Timer/Presetter Block Diagram Type A, B
Tuner/IF Block Diagram Type C, D
Timer/Presetter Block Diagram Type C, D
Overall Wiring Diagram Type A
Overall Wiring Diagram Type B
Overall Wiring Diagram Type C
Mechacon, Servo, Audio and Operation Circuits Type A
A/S/M Circuit Board Type A
Operation Circuit Board Type A
Mechacon Sub Board
Mechacon, Servo, Audio and Operation Circuits Type B, C, D
A/S/M Circuit Board Type B, C, D
Operation Circuit Board Type B, C, D
Mechacon Sub Board
Video Circuits
Video Circuit Board Type A
Video Circuit Board Type B, C, D
Terminals
Audio and Demodulator Circuits Type A
Audio Circuit Board
Demodulator Circuit Board
Tuner/IF Circuit Type A
Regulator Circuit
Timer/Presetter Circuit Type A, B
Tuner/IF Circuit Board Type A
Timer Sub Board Type A, B
Timer/Presetter Circuit Board Type A, B
Regulator Circuit Board
Tuner/IF and Timer/Presetter Circuits Type C, D
Tuner/IF Circuit Board Type C, D
Timer/Presetter Circuit Board Type C, D
Tuner/IF Circuit Type B
Tuner/IF Circuit Board Type B
Mix Booster
Remote Control Circuit
RF - Converter Circuits

2. General Mechanical Adjustment
2.1 Important Precautions
2.1.2 Required Jigs and Tools
2.2 Layout of Main Mechanical Parts
2.2.1 Exploded View
2.3 Main Assembly Replacements
2.4 Tape Transport System Checks and Adjustment
2.5 Interchangeability Adjustment
3. Electrical Adjustments
3.1 Preparation
3.2 Regulator Circuit
3.3 Servo Circuit
3.4 Mechacon Circuit
3.5 Video Circuit
3.6 Audio Circuit Stereo
3.6 Audio Circuit Mono
3.7 Tuner/IF Circuit
3.8 Demodulator Circuit (Stereo)
4. Audio Multiplex TV Signal Generator
5. Position of Testpoints and Adjusters

General Description

Mechacon Functions in Various Modes

OPERATE Switch ON
Cassette Housing up and down States
Operating Modes
Timer Switch ON
Mode Shift Table

Timer Functions and Operation

Clock
Programm Functions
Timer Recording Operation
Program Entry Complete
Setting Corrections and Checks
Mode Return
Instant Recording
Counter
Counter Reset
Zero Output
Lap Time
Lap Time Release
Lap Time Reset
Tape Running Indicator
Station Selection Typ C, D
Station Selection Typ A, B

Mechanism Description

Functions of Major Parts

Drum Motor
Solenoid
Capstan Motor
Mode Control Motor

Description of Operations

Stop Mode
Loading Mode
Play Mode
Still Mode
Search Mode
Pause Mods
Unloading Mode
Fast Forward/Rewind Modes

Cassette Housing Operation

Cassette Loading Mechanism
Cassette Loading and Eject End Detect
Upper and Lower Door Mechanisms

Circuit Description

Mechanism Control System

General
Infrared Remote Control Unit
Mechanism Features
Circuit Description

Servo System

General
Principle of the Servo System
Servo Circuit Description

Video System

General
Luminance Signal System
Color Signal System

Audio System

General Typ B, C, D
Block Diagram Description
Muting Control
General Stereo Version Typ A
Block Diagram Description
Demodulator Circuit Stereo Version Typ A

Timer Presetting Circuit

Recorder Typ C, D

Clock
Program Functions
Timer Recording Operation
Program Entry Complete
Setting Corrections and Checks
Mode Return
Instant Recording
Counter
Counter Reset
Zero Output
Lap Time
Lap Time Release
Lap Time Reset
Tape Running Indicator
Station Selection

Typ A, B

Auto Tuning Operation
Pulse - Width Modulation (PWM)
Functions of Major ICs

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