Onkyo TX-2100 User Manual

TX-2100
SERVICE MANUAL
SERVICE MANUAL
STEREO RECEIVER
Black model
MODEL TX-2100
120 V AC, 60 Hz
BMDD
Ref. No. 3836
102004
REMOTE CONTROLLER RC-330S
INPUT SELECTOR
DISC
SLEEP
POWER
MUTING
VOLUME
CD
TUNER
GROUP
PRESET
TAPE-1
TAPE-2
TUNER PHONO CD
DECK-A DECK-B
RC-330S
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

Onkyo TX-2100 Specifications

General

Tuning range	FM, MW
Total Harmonic Distortion (THD)	0.08%
Input Sensitivity	2.5mV (MM), 150mV (line)
Signal to Noise Ratio	75dB (MM), 90dB (line)
Speaker Load Impedance	4-16 ohms
Damping factor	40

Summary

Safety-Related Component Warning

Component Identification and Replacement

Critical components identified by mark A require specific replacement procedures.

Specifications

Amplifier Section

Details power output, dynamic power, THD, sensitivity, and impedance.

General

Service Procedures

Replacing the Fuse

Instructions for replacing fuses, emphasizing correct type and rating.

Safety Check Out

IC Block Diagrams and Descriptions

TC9273N-010 Analog Switch Array

Adjustment and Confirmation Procedures 1

Idling Current Adjustment

Procedure to adjust idling current using a voltmeter.

Protection Circuit Confirmation

Adjustment and Confirmation Procedures 2

Current Detection Circuit Confirmation

Testing current detection using square signals and loads.

Test Mode Procedures