Pioneer A-504R Service Manual

QW) PIONEER'
The Art of Entertainment —
Service
Manual |;
STEREO AMPLIFIER
A-5 1
A-504R-G
A-404R
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODELIS) AND TYPE(S).
5666 33© ae .
The ieuaton shows model A-504R.
'ORDER NO.
ARP2894
AC 220V - 230V_ AC 240V, *
|
oO |
|
O |
ac 220V - 230V
AC 240V, *
*: Aner the saiia: of the Power-supply block at the primery winding of Power- transformer referring
to the "Line Voltage Selection" described in Service Manual.
© For the following : A-504R/HEWZ ; A-504R-G/HEZ ; A-404R/HBW and HEWZ, refer to page 19.
CONTENTS
1. EXPLODED VIEWS, PACKING AND |
PARTS UIST cccccacesecicotssiseeeseereesecnscbiaaesaceiien: 2
2. SCHEMATIC AND PCB CONNECTION
DIAGRAMIS] .........cccccccceccssescccscececsececssceseseseenees 6
3. PCB PARTS LIST .0.......ccccscceceeeeees een eer (
4. FOR A-504R/HEWZ, A-504R-G/HEZ, |
A-404R/HBW AND HEVVZ.......... seve ada: 19
5. PANEL FACILITIES 00.0... esccsccsecccssssssscseseeees 21
6. SPECIFICATIONS. ............0ccscccccscesscesesveesersssseeee 2D
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE INC. PO Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087, Keetbergiaan 1, 9120 Meisele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923