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DV-4070-B/4900/DVF-R7030-B/R9030
CPPM,WM IC PERIPHERY DIAGRAM
X35,IC300
OPTICAL
DEVICE
CONTROL
ADDRESS
DECODER
8
A19
BUS
OR
ODCWIAT
INITIALIZATION
Turn power-on with pressing the STOP key. You can separate
from initialization mode if pull out the ac power cord.
Step function
1
POWER-ON
2
CD-TRAY CLOSE.
3
DISC-POSITION-SW ON
4
ROTARY-SW ON
5
TRAVERSE-UNIT
6
RAM & BACKUP INITIALIZE
SUB MICROPROCESSOR:MN101C28C(X25,IC100)
Port No.
Port Name
1
VREF-
2-4
KEY0-2
5,6
KEY3,4
7
KISYU
8.9
KID0,1
10
VREF+
11
Vdd
12
OSC2
7
CIRCUIT DESCRIPTION
X35,IC700
CONTENTS
PROTECTION
for PRERECORD
MEDIA
16
A16
X35,IC500
CS1
MAIN
MICROPROCESSOR
Remarks
Display shows blinking "INITI"
Display shows "INITI_OK" if no trouble. "INITI_NG if any trouble.
I/O
O
Negative reference voltage for AD converter.
I
Key input for AD
O
No use
I
Model selector
I
Destination selector
O
Positive reference voltage for AD converter.
O
+5V
I
Clock input,10MHz
X35,IC401/2
SDRAM
X35,IC400
AV DECODER
ADDRESS
DECODER
16
CS2
Description
X25, IC5/6
AUDIO
DAC
WATER
MARK
8
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