PMD650
409S855010 MIT
3120 785 22260
First Issue 2000.03
Service
Manual
PMD650 /
N1B, /U1B, /F1B
R
PMD650
Printed in Japan
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
TABLE OF CONTENTS
SECTION
PAGE
1. TECHNICAL SPECIFICATIONS ................................................................................................................. 1
2. SERVICE MODE ....................................................................................................................................... 2
3. MD MODULE(KML-252 with PCB) ELECTRICAL ADJUSTMENTS .................................................. 4
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
14. EXPLODED VIEW AND MECHANISM PARTS LIST ......................................................................... 57
15. ELECTRICAL PARTS LIST ................................................................................................................... 59
Portable Mini Disc Recorder
SOURCE
SP
LP
OFF
ON
REC MODE
0dB
-15dB
MIC ATTEN
FLAT
ANC
REPEAT
A-B/DEL
TITLE
CHAR
ENTER
E D I T
BACKSPACE
-30dB
MIC
LINE
INPUT LEVEL
INPUT SELECT
STEREO
HP/SPK MODE
REC LEVEL
LSR
MANUAL
STEREO
INT MIC
L
R
MONO (L ch)
ANALOG
DIGITAL
LIMITER
ALC
PORTABLE MINIDISC RECORDER PMD650
POWER
EJECT
M I C
DIGITAL RECORDING
DIGITAL IN
REMOTE
(RC-5)
➀
GND
➁
HOT
➂
COLD
MIC/LINE IN
PHANTOM
+48V
L
R
OFF
ON
DISPLAY
REC PAUSE
LIGHT
KEY LOCK
PHONES
HP/SPK VOLUME
REC
LEVEL
L
R
REC/MARK
DC IN 12V
CHARGE
LINE OUT
DIGITAL OUT
➂
➁
➀
L
R
ON
OFF