Yamaha htr 5170

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AV RECEIVER

X-V7953/RDS
HTR-5 1 7O

SERVICE MANUAL

l IMPORTANT NOTICE \

This maxilla] has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that bflSlC service procedures inherent to the industry, and more specifically YAMAHA Products. are
already known and understood by the user& and have therefore not been restated.

WARNING: Failure to follow appropriate service and safety procedtires when servicing this prodtict may result in

personal Injury. destruction of expensive components. and failure of the product to perform as specified.
For these tea, a we advise all YAMAHA prodtict owners that any servrce required should be performed
by an authorized YAMAHA Retailer or the appointed service representative,

IMPORTANT: The presentation or sale of this manual to any InleIduaI or firm does not constitute authorization. certificae
tion or recognition of any applicable technical capabilities. or establish a principleragent relationship
of any form

The data provided is believed to be accurate and applicable to the llllil(s) indicated on the cover. The research. engineering, and

setyice departntents of YAMAHA are continually striving to improye YAMAHA products, Modifications are. therefore.

inevitable and specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
eXlst. please Contact the distributor's Service Divlslon.

WARNING: Static discharges can destroy expensive components Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this
buss).

IMPORTANT: Tum the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the

\ unit, ,

\, /

I CONTENTS

TO SERVICE PERSONNEL 1 TUNER ADJUSTMENTS 22~25
REMOTE CONTROL PANELS 1 DISPLAY DATA

FRONT PANELS 2 IC DATA

REAR PANELS .. 3~4 PRINTED CIRCUIT BOARD

SPECIFICATIONS 5~6 PIN CONNECTION DIAGRAM .

INTERNAL VIEW 7 BLOCK DIAGRAM

DISASSEMBLY PROCEDURES 7 SCHEMATIC DIAGRAM .

SELF DIAGNOSIS FUNCTION...............................8~19 PARTS LIST.

FACTORY PRESET 20 REMOTE CONTROL TRANSMITTER
AMP ADJUSTMENTS 21

Lmfi-EXV:;7M;Lluv-afifimfiméfifi bruit.
This Service Manual uses recycled paper.

.YAMAHA

EWHAFSJORPORATSON
. . 0x1, amamatsu, apan
it? Printed in Japan

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RX-V795a/RDS/HTR-517O

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I TO SERVICE PERSONNEL

1. Critical Components information.
Components having special characteristics are marked A and

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must be replaced with parts having specifications equal to those ArcEsI-Fég/IJGRE
' ' ' . WALL EQUIPMENT

originally installed OUTLET UNDER TEST EQUIVALENT
2. Leakage Current Measurement (For 120V Model only).

When service has been completed, it is imperative that you G) D

verify that all exposed conductive surfaces are properly insu- r

lated from supply circuits. .__
0 Meter impedance should be equivalent to 1500 ohm shunted INSULATING

by 0.15 pF. TABLE

0 Leakage current must not exceed 0.5mA.
0 Be sure to test for leakage with the AC plug in both polarities.

"CAUTION"
F821 : FOR CONTINUED PROTECTION AGAINST RISK OF F|RE,REPLACE ONLY WITH SAME TYPE 2.5A,250V FUSE
(G model)"
,A ,v F822 : FOR CONTINUED PROTECTION AGAINST RISK OF F|RE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE
(A, B, G, L models)"
"F823 : FOR CONTINUED PROTECTION AGAINST RISK OF F|RE,REPLACE ONLY WITH SAME TYPE 8.0A,125V FUSE
(U, C, R, T models)"
"F851 : FOR CONTINUED PROTECTION AGAINST RISK OF F|RE,REPLACE ONLY WITH SAME TYPE 4.0A,250V FUSE
(Fl, T models)"

WARNING: CHEMICAL CONTENT NOTICE!

The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.

DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHATSOEVER!

Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to
solder/flux vapor!

If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling

food.
I REMOTE CONTROL PANELS
VU, C, R,T and L models VA, B and G models
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