Pioneer spj 720 service manual

Page 1

(U) PIONEER

The Art of Entertainment

Service
Manual l :I-] ORDER NO.

RRV1 050
SOUND FIELD PROCESSOR
S P - J 4 2 O
SOUND IMAGE CONTROLLER
G R - J3 2 0
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODELIS) AND TYPEISI.
Model
Type Power Requirement Remarks
SP-J720K SP-J420 GR-J320
ADL O O 0
EM, I O - - AC power supplied from power transformer's
AEZIW _ O O secondary of other system component
AB - O O

OThese products are systems components.

Each of these products does not function properly when independent ; to avoid malfunctions, be
sure to connect it to the prescribed system componentis), otherwise damage may result.

These products' instructions are contained within the instruction manual of the related system com-
ponentIs).

The manual is packed with those componenfls).

These products' accessories etc. are packed with their related componentis).

OWhen SP-J720K is operated independently, connect ACZGV to MAIN ASSY TP terminals AC1

and ACZ, and connect input/output signals to TP terminals of L IN, R IN, L OUT, R OUT, C OUT,
and S OUT.
At this time, since communication between SX-J720 and CLD-J7ZO is terminated, all opera-
tions cannot be confirmed. (KARAOKE MPX cannot be switched to Hi-Fi MPX.) Also, keep in mind
that, after SCENE SELECTOR changeover and other keys are operated, there is a 2-second delay
before they operate.

PIONEER ELECTRONIC CORPORATION 4-1, Meguro I-Chome. Meguro-ku. Tokyo 153. Japan

PIONEER ELECTRONICS SERVICE INC. PO. Box 1760. Long Beach. Califorma 90801 U.S.A.

PIONEER ELECTRONICS OF CANADA, INC. 300 Allstate Parkway Markham. Ontario LSR 0P2 Canada

PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 178-184 Boundary Road, Braesrde, VIctorIa 3195. Austraha TEL: [03] 580-9911

© PIONEER ELECTRONIC CORPORATION 1993 0_DFN [3301993 mm, in Japan

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SP-J 720K, «.SP-J420. GR-J320

CONTENTS

CHAPTER 1 CHAPTER 2
1.1 PANEL FACILITIES --------------------------- 1-2 2.1 EXPLODED VIEWS --------------------------- 2-3
1.2 SPECIFICATIONS -------------------------- 1-4 2.2 SCHEMATIC AND PCB CONNECTION
1.3 ADJUSTMENTS .............................. 1-5 DIAGRAMS .................................... 2_5
1.4 IC INFORMATION --------------------------- 1-6
1.5 PARTS LIST FOR EXPLODED VIEWS 1-8
1.6 PCB PARTS LIST ------------------------------ 1-9

CHAPTER 1

1.1 PANEL FACILITIES

FRONT PANEL FACILITIES

This unit features an illumination guide function" which uses
, flashing indicators to show which controls should be

manipulated next
(D (2) (3) @CS) (63 C7) ®

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