Pioneer sxr 9 service manual

Page 1

GD PIONEEIT

The Art of Entertainment

S ervice
Manual

STEREO TUNER AMPLIFIER

SX- R9

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

ORDER NO.
RRV1937

Model
Type Power Requirement Remarks
SX-R9
MY 0 A0220-230V

O This product is a system(s) component.
This product does not function properly when independent; to avoid malfunctions, be sure to
connect it to the prescribed system component(s), otherwise damage may result.

CONTENTS

1. SAFETY INFORMATION .................................... 2 7. GENERAL INFORMATION .............................. 33
2. EXPLODED VIEWS AND PARTS LIST ............. 3 7.1 PARTS ....................................................... 33
3. SCHEMATIC DIAGRAM ..................................... 6 7.1.1 IC ....................................................... 33
4. PCB CONNECTION DIAGRAM ....................... 18 7.1.2 DISPLAY ........................................... 35
5. PCB PARTS LIST ............................................. 28 7.2 DIAGNOSIS ................................................ 36
6. ADJUSTMENT .................................................. 32 7.2.1 DISASSEMBLY ................................. 36
7.2.2 TEST MODE ...................................... 37

7.3 BLOCK DIAGRAM ...................................... 38

8. PANEL FACILITIES AND SPECIFICATIONS
....................................................... 39

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1~Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. PO. Box 1760, Long Beach, CA 90801-1760, U.S.A.

PIONEER ELECTRONIC (EUROPE) N.V . Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923

© PIONEER ELECTRONIC CORPORATION 1998 T-DZY MAR. 1998 Printed in Belgium

Page 2

SX~R9

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual
do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.

WARNING

Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which
may cause birth defects or other reproductive harm (California Health & Safety Code, Section 25249.5).

When servicing or handling circuit boards and other components which contain lead in solder, avoid unprotected skin contact with
the solder. Also, when soldering do not inhaie any smoke or fumes produced.

NOTICE

(FOR CANADlAN MODEL ONLY)

Fuse symbols 1 (fast operating fuse) and/or l-~ - (slow operating fuse) on PCB indicate that replacement parts
must be of identical designation.

REMARQUE

(POUR MODELE CANADIEN SE JLElVIENT)

Les symboles de fusible I (fusible de type rapide) et/ou |- ~ (fusible ole type lent) sur CCI indiquent que les
pieces de remplacement doivent avoir la meme designation.

(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS

The following check should be performed for the
continued protection of the customer and service
technician.

LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground

(water pipe, conduit, etc.) by connecting a leakage

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A PO-
TENTIAL SHOCK HAZARD AND MUST BE COR-
RECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

current tester such as Simpson Model 229-2 or
equivalent between the earth ground and all exposed
metal parts of the appiiance (input/output terminals,
screwheads, metal overlays, control shaft, etc.). Plug
the AC tine cord of the appliance directly into a 120V
AC 60 Hz outlet and turn the AC power switch on. Any
current measured must not exceed 0.5 mA.

Reading should
not be above
Leakage 0_5 mA

_ current
Devrce tester
under L
ISSI + _
Test all exposed
metal surfaces
0 Aiso test with piug
M reversed
(Using AC adapter
@ plug as required) 3 I

-7- Earth ground

AC Leakage Test

Many eiectricai and mechanical parts in the appli-
ance have special safety related characteristics. These
are often not evident from visual inspection nor the
protection afforded by them necessarily can be ob-
tained by using replacement components rated for
voltage, wattage , etc. Replacement parts which have
these special safety characteristics are identified in
this Service Manual.

Electricai components having such features are

identified by marking with a AX on the schematics and
on the parts list in this Service Manual.
The use of a substitute replacement component which
does not have the same safety characteristics as the
PIONEER recommended replacement one, shown in
the parts list in this Service Manual, may create shock,
fire, or other hazards.

Product Safety is continuously under review and
new instructions are issued from time to time. For
the latest information, always consuit the current
PlONEER Service Manual. Asubscription to, or ad-
ditional copies of, PIONEER Service Manual may be
obtained at a nominal charge from PIONEER.