Onkyo TX 830 M Service Manual

Page 1

T 830

SERIAL No. 3293

ONKYO SERVICE MANUAL

QUARTZ SYNTHESIZED
TUNER AMPLIFIER
MODELS TX-830/TX-830M

Black model

BHUD, BHUDN, MBHUDN 120v Ac, 60Hz

BHUG 220v Ac, 501-12

BHUQA 240v Ac, SOHz

BHUW 120/220v AC, 50/60Hz
SAFETY-RELATED COMPONENT WARNING TABLE OF CONTENTS
COMPONENTS IDENTIFIED BY MARK A ON
THE SCHEMATIC DIAGRAM AND IN THE PARTS specifications ........................ 2
LIST ARE CRITICAL FOR RISK OF FIRE AND Service procedures ...................... 3
ELECTRIC SHOCK. REPLACE THESE COMPO- Exploded view ...... . .................. 4
NENIS WITH ONKYO PARTS WHOSE PART pans list ........................... 5
NUMBERS APPEAR AS SHOWN IN THIS Block diagram .gov model .................. 6
MANUAL Block diagram -220v model ------------------ a

Connection diagram of microprocessor ------
Block diagram of 1C ------------- .
Adjustment procedures -------------------- 18
PC board view/parts list

MAKE LEAKAGECURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM

THE SUPPLY CIRCUIT BEFORE RETURNING

Display/preamp./speaker ----------- . 21
THE APPLIANCE TO THE CUSTOMER AM/FM tuner and selector circuit ------ . 25
Power amplifier ............... . . 30
Other pc boards --------------------- 33
Schematic diagram
120V model *Tuner- ................... 23
120V model -Amp. --------------- . 27
Other models -Tuner ------------------- 31
Other models -Amp. -------------------- 35
Disassembling procedures ------------ . 37

I ONKYO ........................ 38
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