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Marantz 3250B Service Manual

Marantz 3250B
20 pages
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Marantz 3250B Specifications

General IconGeneral
TypePreamplifier
Frequency Response20 Hz to 20 kHz
Total Harmonic Distortion0.005%
Input Sensitivity (MM)1.8mV (MM)
Input Sensitivity (line)180mV (line)
Dimensions17.5 x 14.5 x 4.5 inches
Weight10 lbs
SemiconductorsTransistors
Output Level1.5V (Pre out)
Output1.5V (Pre out)
Output Voltage1.5V (Pre out)

Summary

Marantz Design and Service

Ordering Parts Information

Details on how to order Marantz replacement parts domestically.

Overseas Parts Ordering Locations

List of international service centers for ordering Marantz parts.

Introduction to Service Manual

P.W. Board Component Units

Required Servicing Test Equipment

Alignment Procedures

Voltage Conversion for European Models

Functional Block Diagram

Schematic Diagram

Diagram and Component Locations

SPK/Headphone Assembly (PW01) Diagram

Schematic and component layout for the speaker and headphone assembly.

Pre-Amp Assembly (PJ01) Diagram

Schematic and component layout for the pre-amplifier assembly.

Loudness Control (PF01) Diagram

Schematic and component layout for the loudness control assembly.

Fuse Assembly (PP01) Diagram

Schematic and component layout for the fuse assembly.

Input Terminal (PV01) Diagram

Schematic and component layout for the input terminal assembly.

Tone Control Filter (PS01) Diagram

Schematic and component layout for the tone control filter assembly.

Exploded Mechanical Diagram

Rear Panel Diagram (Europe Only)

Exploded mechanical diagram of the rear panel, specific to European models.

Packing Material Exploded View

Parts List

Technical Specifications (USA Model)

European Model Technical Specifications

Audio Section Specifications

Performance parameters for the audio circuitry of the European model.

General Specifications

General operational and physical characteristics for the European model.

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