Yamaha htr 6066

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AV RECEIVER

RX-V675/HTR-6066/

RX-A730/TSR-6750

Note:

When the DIGITAL PCB. or ICSZ on DIGITAL (1) PCB. is replaced, this unit will display Internal Error" and will
not Operate properly. The model name MUST be written to the backup IC (EEPROM: |C82 on DIGITAL (1) PCB.) to
have proper operation. (For detailed procedure, refer to related Service News or Sen/ice Bulletin. Or contact your
local Yamaha representative.)

lMPORTANT NOTlCE

This manual has been provided for the use of authorized Yaitiaha Retailers and tiicir service personnel.
it has been assumed that basic Service procedures inherent to Ilie industry, and more specifically Yamaha Products. are already known
and understood by the users and have therefore not been restated,

WARNING: Failure to follow appropriate semce and safety procedures when Servicing this product may result in personal injury.
destnictiou of cxpeusite components. and failure of the product to perform as specified. For these reasons, we advise
all Yamaha product owners that any service required should be performed by an authorized Yamaha Retailer or the
appointed serytce representative,

INIPORTANT: The presentation or sale of this manual to any individual or firm does not conslitiite authorization. certification or
recognition ofaiiy applicable technical capabililies. or establish a principleragent relationship nt'any form.

The data provided is belieyed to be accurate and applicable to the ||nlI(S) indicated on the cover, The research. engineering. and service

departiiieuts of Yamaha are continually striving to Imprmc Yamaiia products. Modifications are therefore. ineyitabie and specifications

are subject to change Without notice or obligation to retrofit. Should any discrepancy appear to eXist. please contact the distributor's

Service Division.

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

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

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I CONTENTS

TO SERVICE PERSONNEL ............................................ 2
FRONT PANELS
REAR PANELS ..
REMOTE CONTROL PANEL
SPECIFICATIONS .................
INTERNAL VIEW ...........
SERVICE PRECAUTIONS .
DISASSEMBLY PROCEDURES .
UPDATING FIRMWARE .
SELF-DIAGNOSTIC FUNCTION
POWER AMPLIFIER ADJUSTMENT

Copyright tciYamatta Corporation All rights reserved.
this manual is copyrighted by Yamaha and may not be copied or
redistributed either in print or electronically Without permission,

DISPLAY DATA ....................................................... 72-73
IC DATA .......................................
PIN CONNECTION DIAGRAMS .
BLOCK DIAGRAMS .
WIRING DIAGRAMS
PRINTED CIRCUIT BOARDS ..
SCHEMATIC DIAGRAMS ........
REPLACEMENT PARTS LIST .
REMOTE CONTROL
ADVANCED SETUP .
FIRMWARE UPDATING PROCEDURE

YAMAHA

YAMAHA CORPORATION

P.O.Box 1, Hamamatsu, Japan
'1 3 .05

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RX-A730ITSR-6750

RX-V675/HTR-6066IRX-A730/TSR-6750

I TO SERVICE PERSONNEL

AC LEAKAGE
1. Critical Components Information WALL EQUIPMENT TESTER OR
Components having special characteristics are marked A and OUTLET UNDER TEST EQUIVALENT
must be re laced with parts havin s ecifications e ual to those
originally insptalled. 9 P q ® :I:)-
2. Leakage Current Measurement (For 120V Models Only) J_-
When serVIce has been completed, It is Imperative-to verify INSULATING
that all exposed conductive surfaces are properly Insulated TABLE
from supply circuits.
0 Meter impedance should be equivalent to 1500 ohms shunted 0 Leakage current must not exceed 0.5mA.
by 0-15 IJF- 0 Be sure to test for leakage with the AC plug in both polarities.
For U model
IEB CAUTION
AV "F3701: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 2A,
250V FUSE."
"F3702: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE 8A,
125V FUSE."
For C model
CAUTION

F3701: REPLACE WITH SAME TYPE 2A, 250V FUSE.

F3702: REPLACE WITH SAME TYPE 8A, 125V FUSE.

A'I'I'ENTION

F3701: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 2A, 250V.
F3702: UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE DE 8A, 125V.

WARNING: CHEMICAL CONTENT NOTICE!

This product contains chemicals known to the State of California to cause cancer, 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.

About lead free solder

All of the P.C.B.s installed in this unit and solder joints are soldered using the lead free solder.

Among some types of lead free solder currently available, it is recommended to use one of the following types for the
repair work.

0 Sn + Ag + Cu (tin + Silver + copper)
0 Sn + Cu (tin + copper)
0 Sn + Zn + Bi (tin + ZlnC + bismuth)

Caution:
As the melting point temperature of the lead free solder is about 30°C to 40°C (50°F to 70°F) higher than that of the lead
solder, be sure to use a soldering iron suitable to each solder.