Onkyo TX 18 Service Manual
This is the 21 pages manual for Onkyo TX 18 Service Manual.
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Extracted text from Onkyo TX 18 Service Manual (Ocr-read)
Page 1
T 718
SERIAL NO. 3225
ONKYO SERVICE MANUAL
QUARTZ SYNTHESIZED
TUNER AMPLIFIER
MODEL TX-18
Black and Silver models
BUD, BUDNJJD
120V AC. 60Hz
BUG, UG 220V AC, SOHZ
BUQA 240V AC. SOHZ
BUW. UW 120 or 220V AC, SO/GOHZ
SAFETYRELATED COMPONENT WARNING! I
COMPONENTS IDENTIFIED BY MARK A ON
THE SCHEMA'I'IC DIAGRAM AND IN THE PARTS
LIST ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE THESE (X)MPO*
NENTS WITH ONKYO PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS
MANUAL
MAKE LEAKAGECURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM
THE SUPPLY CIRCUIT BEFORE RETURNING
THE APPLIANCE TO THE CUSTOMER.
ONKYO
AIIIIIII BIIMPIIIIIIIIS
TABLE OF CONTENTS
Specifications ........................ 2
Service procedures ..................... 3
Exploded View ----------------------- 4
Parts IISL ......................... 5
Block diagram 120V mudeI" ---------------- 6
Block diagram "220V modeI- ---------------- 7
Circuit description --------------------- g
Adjustment procedures --------------- 12
Pcb view/parts Iist
Tone/Headphone terminal -------- 15
Display/Volume control --------- 16
FM/AM tuner .............. 17
Power ampIifier ...................... 2]
Schematic diagram
VIZOV model_ ....................... 19
-220V model-r
Packing View