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Denon PMA-2000 IV - Amplifier User Manual

Denon PMA-2000 IV - Amplifier
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Hi-Fi Integrated Stereo Amplifier
SERVICE MANUAL
MODEL
PMA-2000
IV
R
INTEGRATED STEREO AMPLIFIER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
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Denon PMA-2000 IV - Amplifier Specifications

General IconGeneral
Signal to Noise Ratio (Line)108 dB
Input Sensitivity (MM)2.5 mV
Signal to Noise Ratio (MC)74 dB
Speaker Load Impedance4 - 16 ohms
Frequency Response5Hz - 100kHz
OutputRec Out
Dimensions434 x
Input Sensitivity (Line)135mV / 47k ohms

Summary

Safety Precautions

Leakage Current Check

Check leakage current or line to chassis resistance. Unit is defective if values exceed limits.

Specifications

Power Amplifier Section

Details rated output power, THD, input sensitivity, and amplification factor.

Pre Amplifier Section

Details PHONO EQUALIZER specs like rated output, input sensitivity, RIAA deviation.

Overall Characteristics

Covers SN ratio, tone control range, and other general performance metrics.

Other Specifications

Lists power supply, outlets, consumption, dimensions, and net mass.

Remote Control Unit (RC-858) Specifications

Specifications for the remote control unit, including system, power, dimensions, and mass.

Disassembly Procedures

Top Cover Removal

Instructions for removing the top cover by unscrewing specific parts.

Front Panel Disassembly

Steps for disassembling the front panel, including knob and nut removal.

Bottom Plate Removal

Procedure to remove the bottom plate by unscrewing multiple parts.

Rear Panel Detachment

Steps to detach the rear panel by removing specific screws.

Heat Sink Assembly Removal

Instructions for removing the heat sink assembly by unscrewing parts.

Method of Adjustments

Idling Current Setup

Instructions on positioning the unit and setting controls before adjustment.

Idling Current Adjustment

Step-by-step guide for adjusting idling current using a voltmeter and specific resistors.

Block/Level Diagram

Semiconductors and Components

IC Details: TMP87CC46N-4C08 (IC901)

Detailed pinout and function description for the TMP87CC46N-4C08 microcomputer.

Integrated Circuit LB1639 (IC902)

Pinout and typical application diagram for the LB1639 IC.

Integrated Circuits BA4558/NJM2082D

Pinout and typical application diagram for the BA4558/NJM2082D IC.

Other Component: GP1U27X Sensor

Block diagram and typical application of the GP1U27X sensor.

Transistor Information

List of transistors with front view and typical circuit examples.

Additional Transistor Listings

List of additional transistors with front views.

Diodes and LEDs

List of diodes and LEDs with part numbers and types.

Thyristor Details

Details for Thyristor SF0R3G42 with front view.

Thermistor Details

Details for Thermistor PTH9M04BD222TS2F333.

Printed Wiring Boards Layouts

1U-3432 Power Amp P.W.B. Unit Layout

Component layout diagram for the Power Amp P.W.B. unit.

1U-3130 Input P.W.B. Unit Layout

Component layout diagram for the Input P.W.B. unit.

1U-3433 Flat Amp P.W.B. Unit Layout

Component layout diagram for the Flat Amp P.W.B. unit.

Parts List Notes

Resistor Identification

Explains resistor coding and types.

Capacitor Identification

Explains capacitor coding, types, and markings.

P.W.B. Unit Parts Lists

1U-3432 Power Amp Unit Parts

Comprehensive list of parts for the Power Amp Unit.

Power Amp Resistors Group

List of resistors for the Power Amp Unit.

Power Amp Capacitors Group

List of capacitors for the Power Amp Unit.

Power Amp Other Parts

List of miscellaneous parts for the Power Amp Unit.

1U-3130H Input Unit Parts

Comprehensive list of parts for the Input Unit.

Input Unit Semiconductors

List of semiconductors for the Input Unit.

Input Unit Resistors

List of resistors for the Input Unit.

Input Unit Capacitors

List of capacitors for the Input Unit.

Input Unit Accessories

List of miscellaneous parts for the Input Unit.

1U-3433 Flat Amp Unit Parts

Comprehensive list of parts for the Flat Amp Unit.

Flat Amp Semiconductors

List of semiconductors for the Flat Amp Unit.

Flat Amp Resistors

List of resistors for the Flat Amp Unit.

Exploded View Diagram

Parts List for Exploded View

Screws Used in Assembly

List of screws used in the assembly.

Packing View and Accessories

Packing Diagram

Diagram showing how the unit is packed with accessories.

Packing and Accessories List

List of packing materials and included accessories.

Wiring Diagram

Schematic Diagrams (1/3)

EQ/Input Unit (1U-3130-1) Schematic

Schematic for the Equalizer/Input unit.

Protector Unit (1U-3130-2) Schematic

Schematic for the Protector unit.

Function Switch Unit (1U-3130-5) Schematic

Schematic for the Function Switch unit.

Schematic Diagrams (1/3) - Part 2

Power Supply Unit (1U-3130-4) Schematic

Schematic for the Power Supply unit.

Schematic Diagrams (3/3)

Flat Amp Unit (1U-3433) Schematic

Schematic for the Flat Amplifier unit.

Schematic Diagrams (2/3)

Volume Unit (2000/4R) Schematic

Schematic for the Volume unit (2000/4R).

Volume Unit (2000/4) Schematic

Schematic for the Volume unit (2000/4).

Control Unit Schematic

Schematic for the Control unit.

Power Amplifier L Unit Schematic

Schematic for the Left Power Amplifier unit.

Power Amplifier R Unit Schematic

Schematic for the Right Power Amplifier unit.

Schematic Diagrams (2/3) - Part 2

Pre Out Unit Schematic

Schematic for the Pre Out unit.

S. D. SW Unit Schematic

Schematic for the Source Direct Switch unit.

LED Unit Schematic

Schematic for the LED unit.

AC Outlet Unit Schematic

Schematic for the AC Outlet unit.

Power Switch Unit Schematic

Schematic for the Power Switch unit.

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