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Sansui 2000A Service Manual

Sansui 2000A
33 pages
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Sansui 2000A Specifications

General IconGeneral
Power Output35 watts per channel into 8Ω (stereo)
Total Harmonic Distortion0.8%
Speaker Impedance4Ω to 16Ω
Frequency Response20Hz to 20kHz
Input Sensitivity2.5mV (MM)
Signal to Noise Ratio70dB (MM)
OutputHeadphones
Semiconductorstransistors, diodes

Summary

General Troubleshooting Chart

Custom Mounting

Disassembly Procedure

Removing the Front Panel, Bonnet and Bottom Plate

Procedure for disassembling the front panel, bonnet, and bottom plate.

Removing the Wood Case

Steps for removing the wood case from the unit.

Dial Mechanism

Diagram illustrating the dial mechanism components.

Block Diagram

Alignment

Test Points

Identifies and labels various test points on the circuit boards.

FM Alignment Procedure

Step-by-step guide for aligning the FM section of the tuner.

FM Multiplex Alignment Procedure

Procedure for aligning the FM multiplex stereo circuit.

AM Alignment Procedure

Step-by-step guide for aligning the AM section of the tuner.

Current Adjustment

Output Adjustment

Printed Circuit Sheets and Parts List

F-1222 Tone Control Block Parts List

List of components and their locations for the F-1222 Tone Control Block.

F-1253 Equalizer Amp. Block Parts List

List of components and their locations for the F-1253 Equalizer Amp. Block.

F-1197 Rectifier Block Parts List

List of components and their locations for the F-1197 Rectifier Block.

F-1195 Ripple Filter Block Parts List

List of components and their locations for the F-1195 Ripple Filter Block.

F-1224 Noise Canceler and Muting Block Parts List

List of components and their locations for the F-1224 Noise Canceler and Muting Block.

F-1223 High-Low Filter Block Parts List

List of components and their locations for the F-1223 High-Low Filter Block.

F-1220 AM Meter Block Parts List

List of components and their locations for the F-1220 AM Meter Block.

F-1254 Accessories Block Parts List

List of components and their locations for the F-1254 Accessories Block.

F-1214 FM IF Block Parts List

List of components and their locations for the F-1214 FM IF Block.

F-1190 Multiplex Block Parts List

List of components and their locations for the F-1190 Multiplex Block.

F-10381 AM IF Block Parts List

List of components and their locations for the F-10381 AM IF Block.

F-1180 Driver Amp. Block Parts List

List of components and their locations for the F-1180 Driver Amp. Block.

Other Parts and Their Position on Chassis

Sansui Service Bulletin

Modification of the Power Circuit

Details on modifying the power circuit to address noise issues.

Hum Level on Phono Input

Procedure to address hum on PHONO 1 or 2 inputs by adding a ripple filter.

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