PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC.
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE N.V.
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000
K-ZZA. FEB. 2000 Printed in Japan
ORDER NO.
CRT2479
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
GM-X644
X1R/UC,EW
Service
Manual
CONTENTS
1. SAFETY INFORMATION............................................2
2. EXPLODED VIEWS AND PARTS LIST ......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM................................12
5. ELECTRICAL PARTS LIST........................................16
6. ADJUSTMENT .........................................................20
7. GENERAL INFORMATION.......................................21
7.1 DISASSEMBLY ..................................................21
8. OPERATIONS AND SPECIFICATIONS ....................22
GM-X544
X1R/UC,ES
GM-X644/X1R/UC