Pioneer DRM-7000 Service Manual page 54

1
DRM-7000, DRM-AF751, DRM-AL751, DRM-AH721, DRM-PW701
3.11 MMCB BOARD ASSY (1/3)
A
B
C
CN102
B
CN211
CN101
F
D
CN261
J
1/3
54
1
2
4
1
CAUTION:FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TIME NO. ICP-N25, MFD BY
ROHM CO., LTD. FOR IC143 and IC144.
2
3
Power Off (Free Drive)
1 CN101 pin2 (V+12)
1
V:10V/div H: 200msec/div
2 IC106 pin2 (VCC)
2
V:5V/div H: 200msec/div
3 IC106 pin1 (XRST)
3
V:5V/div H: 200msec/div
4 CN102 pin2 (XINT)
2 3
4
V:5V/div H: 200msec/div
: The power supply is shown with the marked box.
3
4
Power Off (16 Drive)
1
GND
GND
2
GND GND
3
GND GND
4
GND GND
∆t= 2.234 sec ∆t= 614 msec
(typ 600msec)
(typ 2.00msec)
4