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Pioneer KEH-M8250 - User Manual

Pioneer KEH-M8250
50 pages
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Summary

SAFETY INFORMATION

CAUTION

Safety warning for qualified technicians.

WARNING

Health warning regarding lead in solder.

SPECIFICATIONS

Product Specifications Overview

General, Amplifier, Tape Player, and Tuner specifications.

1. SWITCHING POWER ON;ADJUSTING VOLUME AND TONE

Adjusting the Fader

Controls balance between front and rear speakers.

Adjusting Bass

Controls the low frequency response of the audio.

Adjusting Middle

Controls the mid-frequency response of the audio.

Adjusting Treble

Controls the high frequency response of the audio.

Adjusting Balance

Controls left-right speaker sound distribution.

Using the Clear Button

Resets microprocessor in case of abnormal operation.

Switching Power On

How to turn the unit on via radio or tape insertion.

Adjusting Volume

Controls the overall audio output level.

Changing the Source

Selects between Tape, Radio, or CD input.

Other Operational Features

Using the Loudness Function

Enhances bass and treble at low volumes.

Switching Illumination Colour

Selects between green or amber display illumination.

Using Source Level Adjustor

Adjusts volume for different audio sources.

2. USING THE RADIO

Use seek tuning to tune in a frequency

Automatically scans for receivable radio stations.

Preset Scan Tuning

Automatically monitors stations stored in preset memory.

BSM (Best Stations Memory)

Automatically finds and assigns strongest stations.

Manual Tuning

Allows fine-tuning of stations when seek tuning is weak.

Switching between FM stereo and Mono

Selects reception mode for optimal clarity.

Adjusting Seek Sensitivity

Adjusts tuner sensitivity for local or distant stations.

Changing the Local Seek Sensitivity

Sets sensitivity levels for local tuning.

Switching between Local and DX

Toggles between local and distant station tuning.

3. USING THE TAPE DECK

Tape Operation Modes

Music Search, Fast Forward/Rewind, Dolby NR, Auto Tape Selector, Blank Skip.

4. CONNECTIONS

Installation Precautions and Notes

Important guidelines for safe and correct installation.

5. DISASSEMBLY

Component Removal Procedures

Steps for removing Case, Cassette Mechanism, and Grille.

Unit Component Removal

Steps for removing Display Unit and Tuner Amp Unit.

6. ADJUSTMENT

Test Mode Operations

Entering, canceling, and using test mode functions.

TUNER ADJUSTMENT

Connection Diagram for Testing

Diagram showing necessary test equipment connections.

Tuning Adjustments

FM, AM, Dolby NR, and Clock adjustment procedures.

7. BLOCK DIAGRAM

8. LCD (CAW1133)

ICs

IC Pinouts and Functions

Pin configurations and descriptions for key ICs.

9. CONNECTION DIAGRAM

13. CIRCUIT DIAGRAM AND P. C. BOARD PATTERN

Deck Unit Diagrams

Circuit diagrams and PCB patterns for deck units.

14. CABINET EXPLODED VIEW

Parts List and Notes

List of cabinet parts and important notes.

15. CHASSIS EXPLODED VIEW

Parts List

List of chassis parts and their numbers.

Chassis Exploded View

Parts List

List of chassis parts and their numbers.

16. CASSETTE MECHANISM ASSY EXPLODED VIEW

Parts List

List of cassette mechanism parts and their numbers.

17. PACKING METHOD

Packing List and Notes

List of packing items and important notes.

18. ELECTRICAL PARTS LIST

Notes and Component Lists

Notes on parts, chip components, tuner, and miscellaneous parts.

Pioneer KEH-M8250 Specifications

General IconGeneral
BrandPioneer
ModelKEH-M8250
CategoryCar Receiver
LanguageEnglish

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