Yamaha r 85

Page 1

STEREO RECEIVER

-460/360IR-85

SERVICE MANUA

I CONTENTS

TO SERVICE PERSONNEL

FRONT PANELS.
REAR PANELS
SPECIFICATIONS ..
INTERNAL VIEW'...

BLOCK DIAGRAM.............. ........
DISASSEMBLY PROCEDURES

ADJUSTMENTS ..

PRINTED CIRCUIT BOARD

k apply power to the mix. /

/ IMPORTANT NOTICE \

This manual has been pxovidcd far the use of amhorized YAMAHA Retailm and their service personneL
II has been assumed that basic service pmcednres inherent in the industry. and max: spedfically YAMAHA
Premiums. are aheady known and mdeistcod by the uscxs, and have therefore not been xesutedi

WARNING: Failure In fallow appmpxiam servicc and safely pmoedum when servicing Ihis pmdum
may result in persrmal injury. demuctim of expensive components, Ind failme of the
pmducl lo pertmm as specified. For dies: reasons, we adviu all YAMAHA pxodnc: ownexs
um any sen/ice required should be pexformed by an authorized YAMAHA Retailer or {he
Ippoinled savim mptesanutive

IMPORTANT: The presenvafion or sale of this annual no any individual or rm does no: Oonstilme
autiwxizuim, conificatinn or xecognixicm of any applicable Lechnical capabilities, or
establish a pdncipleagmt relationship of any form

The dau provided is believed to be accmate and applicable to (he unit(s) indicaled an the cover. The mach,
engineering, Ind service departments of YAMAHA axe continually striving to improve YAMAHA products.
Modificanons axe, therefore, iucviuble and specifications are nubjwt to change William nofice or Obligation w
retrofiL Should my discrepancy appear m exist, please mus: the dimly-MES Service Division.

WARNING: Sade discharges can destroy expensive emporium. Discharge any static clumsily your
body may have accumulated by grounding yourself to the gonad buss in Ihe unit (heavy
gauge black wires cornea to This buss).

IMPORTANT: Tum The unit OFF during dmassembly 1nd pan xeplacemenL Rechcck all work before you

IC DATA

DISPLAY DATA.
..2~3 WAVEFORM OF TE 0|NT..
4~5 FRONT END PACK ................

...5 Rx-450 SOHEMATIO DIAGRAM...
RX-360/R-85 SCHEMATIC DIAGRAM.
...s PARTS LIST .....................
REMOTE CONTROL TRANSMITTER .................... 53~54

YAMAHA CORPORATION
P, . x1.Hamamatsu,Japan
0.30K-554 n© Printed In Japan $22.4

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Page 2

A l B I C l D 1 E F G
RX-460l360IR-85
I PRINTED CIRCUIT BOARD (Foil side)
1 SIGNAL DMETER
0 Except G model 1- FROM- MA'N ( 5) rRX-360/R-85 MAIN P. c. B. ( 1 ) |
' z
2 A TO: LCD AM [F ADJ.
(D to @: WAVEFORM OF TEST POINT (See page 36) E f:
.. E .
0 Semlconductor Locations 5 4:
Ref. No. Localion m .2. R 3 , 1. 1 :
1c 1 Fa - E 11 M J
[C 3 Fe ::| o 3 1 jg; E I;
[c 4 F4 N E 3 * 3 <
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lo 7 E3 I f i E "-
IC 8 E3 g3; _ 1 I 1
IC 9 02 1 i " 3
low D4 . wow" 5 o
«2 12 02 Q ~ m 1 E
M n 4
Ref. No. Location 2
o 1 E2 0) u i <
O 2 E2 3 a 4 Q 7 - a
Q 3 F3 2 g : z
D 3 O
Q 4 E2 3 E J:
o 5 Da 3 a 1-
B
o a D3 M a 3
o 7 D3 1 . ° %
Q 5 c4 1 ' "
o 9 04 E 1 x
010 ca 1. 3
013 F4 """" 4 a
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1 1 g.
1-1
m m g m
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1 - "' K \
DISCRIMINATOR MONAURAL D.
|.|.| BALANCE ADJ. DIST ADJ. E I.
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m g -s-8
fi " A SEPARATION n: A - - 53
.- q A :1 A L; w 3 E E;
N . v .. N 3
V E 9 8 E 5.: 3
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1 E "
.. ,9 g
3 (2) RE 55 n:
n: :5; n-
m ll. PSW

| RX-360/R-85 MAIN P. c. B. ( 6 ) |

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