DV-5700/DVF-R9050/R9050-S
9
CIRCUIT DESCRIPTION
POWER ON
CD Tray close
When initialize the mechanism,
it will display "INITI ".
DISC Position SW ON
Rotary SW ON
Traverse Unit Down
Initializing the RAM area
• The "INITI NG " will be displayed if abnormal
and Backed up
action is occurred during the stop mode.
• The "INITI OK "will be displayed if no error occurred.
1. Initializing the DVD Carrousel
1-1 Setting Method
• Insert the AC power plug to AC wall outlet with pressing the "STOP" key.
Port No.
Port Name
I/O
Function
1
VSS
O
GND
2-4
KEY0-2
I
Key input for AD.
5,6
KEY3,4
O
Unused.
7
KISYU
I
Model selector.
8.9
KID0,1
I
Destination selector.
10
VREF+
O
Positive reference voltage for AD converter.
11
VDD
O
+5V
12
OSC2
I
Clock input (10MHz).
13
OSC1
O
Clock output.
14
VSS
O
GND
15
XI
I
Unused.
16
XO
O
Unused.
17
MMOD
I
GND
18
TXD0
O
SIO0 data output port. Main processor contact.
I
SIO0 data input port. Main processor contact.
O
SIO0 clock output.
O
SIO1 data output port. FL driver contact.
I
SIO1 data input port. FL driver contact.
I
SIO1 clock input.
O
FL chip enable.
I
CPU reset.
O
Unused.
O
Unused.
O
Mechanism PCM output.
29
P13
O
Unused.
30
LED DM
O
Unused.
31
REMOCON
I
Remocon code input.
32
POS SENS
O
Mecahnism position sensor.
33
MECHA FG
I
Mecahnism frequency generator(FG) signal input.
34
OPEN SW
I
Tray open switch sensor.
35
CLOSE SW
I
Tray close switch sensor.
36
12C SDA
O
IC400 control (I2C data). Scart drive/E2ROM
37
SB12
O
Unused.
38
12C SCL
O
I2C clock.
39,40
P33,34
O
Unused.
2. Main Microcomputer : MN101C28CMA(X25, IC1)
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513 QQ 376315150 892498299