Onkyo TXSR 503 Service Manual

Page 1

TX-SR503/503E/8350

Ref. No. 3863

ONKYO SERVICE MANUAL °42°°5

AV RECEIVER

MODEL TX-SR503
MODEL TX-SR503E
MODEL TX-SR8350

ammo

E 02%;

TX-SR503 Black and Silver and Golden models

RC-607M

B MDD, B MDC, S MDC 120V AC, 60Hz

B MPA, S MPA 230-240V AC, 50Hz

B MWT, S MWT, G MWT 120V/220-230V AC, SO/OOHZ
G MGR, G MGQ, G MGK 220-230V AC, 50/60Hz

TX-SR503E Black and Silver models

l B MPP, s MPP |23o-240v AC, 50Hz
TX-SR8350 Golden model

GMGR

|220-230v AC, 50/60Hz

SAFETY-RELATED COMPONENT
WARNING! !

COMPONENTS IDENTIFIED BY MARK A ()N THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ()NKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.

MAKE LEAKAGE-CURRENT ()R RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

ONKYO.

IMAGINATIVE SIGHT & SOUND

Page 29

TX-SR503/503E/8 0

A l B C

SCHEMATIC DIAGRAMS-7
DISPLAY SECTION

8513 DISELAY-PC BOARD

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I
. THE COMPONENTS IDENTIFIED EV MARK/1\ ARE CRITICAL EOR SAEETV
REPLACE ONLY WITH PART NUMBER SPECIFIED

- VOLTAGE (MEASURED WITH VOLTMETERI Cl IS DC VOLTAGE (NO INPUT SIONALI I

. ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SAwI 579R UNLESS OTHERWISE NOTED

~ ALL NPN TRANSISTORS ARE EQUIVALENT To 2SCISISOR UNLESS OTHERWISE NOTED

v ALL DIODES ARE EQUIVALENT TO 185133 UNLESS OTHERWISE NOTED

~ ELECTROLV'IIC CAPACITORSI +31 IARE IN WW, I

. ALL CAPACITORS ARE IN pF/SOWV UNLESS OTHERWISE NOTED

EX) 0307 ME 3307 33pF 3317 330OF 3337 n oaauE

. ALL RESISTORS ARE IN OHMS IIAWATTS UNLESS OTHERWISE NOTED

~ THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OE THE PARTS

Ex) -/PRINTING SIDE '

. CIRCUIT IS SUBJECT TO CHANGE FOH IMPROVEMENT l
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I

mm
mm >
$4

NC:NO mount oI pans

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