Service
Manual
SECTION
1. TECHNICAL SPECIFICATIONS ................................................................................................................. 1
2. SERVICE MODE ....................................................................................................................................... 2
4. LCD CONTRAST ADJUSTMENT ......................................................................................................... 11
5. HOW TO DISASSEMBLE ...................................................................................................................... 11
6. WAVEFORMS ......................................................................................................................................... 17
7. BUGS AND PROBLEMS ........................................................................................................................ 18
8. WIRING DIAGRAM ................................................................................................................................. 19
9. BLOCK DIAGRAM .................................................................................................................................. 21
10. LEVEL DIAGRAM ................................................................................................................................... 23
11. SCHEMATIC DIAGRAM ......................................................................................................................... 25
12. PARTS LOCATIONS .............................................................................................................................. 45
13. MICROPROCESSOR AND IC DATA ................................................................................................... 53
15. ELECTRICAL PARTS LIST ................................................................................................................... 59
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Printed in Japan
Portable Mini Disc Recorder
M I C
MONO (L ch)
SP
LP
STEREO
REC MODE
SOURCE
PORTABLE MINIDISC RECORDER PMD650
-15dB
0dB
-30dB
MIC
MIC ATTEN
INPUT LEVEL
FLAT
ANALOG
ANC
INPUT SELECT
REPEAT
A-B/DEL
TITLE
DIGITAL RECORDING
E D I T
BACKSPACE
POWER
EJECT
REC PAUSE
HP/SPK VOLUME
PHONES
DISPLAY
LIGHT
TABLE OF CONTENTS
PMD650
PMD650 /
STEREO
INT MIC
L
R
HP/SPK MODE
LIMITER
LINE
ALC
MANUAL
REC LEVEL
DIGITAL
OFF
ON
LSR
CHAR
ENTER
REC/MARK
L
R
REC
KEY LOCK
LEVEL
N1B, /U1B, /F1B
PAGE
R
409S855010 MIT
3120 785 22260
First Issue 2000.03
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