Sony MZ-N707 OpenMG Jukebox NOTES on installing & operating Service Manual page 49

IC801 CXD2677-202GA (SYSTEM CONTROLLER, DIGITAL SIGNAL PROCESSOR, 16M BIT D-RAM)
Pin No. Pin Name
1
NC
2
NC
3 to 7 NC
8, 9
NC
10, 11
DRAMVDD0, 1
12, 13
DRAMVSS0, 1
14, 15 NC
16 to 19
NC
20
NC
21
NC
22, 23 NC
24
DVSS0
25
DVDD0
26
OFTRK
27 SSB DATA
28
SSB CLK
29 VREC PWM
30
VL PWM
31
VC PWM
32 NC (VD PWM)
33
NC
34
IFVDD0
35
IFVSS0
36 OPT DET
37
XJACK DET
38
XMIC DET
OPEN CLOSE
39
SW
40, 41
SET CODE0, 1
42, 43
SET CODE2, 3
44
XPATCH
45
SI0
46
SO0
47
SCK0
48
XGUM ON
49
BEEP
50, 51
TEST1, TEST0
52
KDO
53
KRB
54
KCLK
55
KCS
56
KDI
I/O
O
Load address strobe signal output terminal for D-RAM Not used
I
Test input terminal for D-RAM Not used
O Address signal output terminal for D-RAM Not used
I/O
Two-way data bus terminal for D-RAM Not used
—
Power supply terminal (for D-RAM) (+2.4V)
—
Ground terminal (for D-RAM)
I/O Two-way data bus terminal for D-RAM Not used
O
Address signal output terminal for D-RAM Not used
O
Column address strobe signal output terminal for D-RAM Not used
I
Test input terminal for D-RAM Not used
O Address signal output terminal for D-RAM Not used
—
Ground terminal (for the DSP block)
—
Power supply terminal (for the DSP block) (+1.5V)
I
Off track signal input from the DSP monitor (3)
I/O SSB data input/output with the RF amplifier and the remote commander attached headphone
O SSB clock output to the RF amplifier
PWM signal output for the Over write head drive power supply voltage control to the power
O
control
O PWM signal output for the laser power supply voltage control to the power control
O PWM signal output for the system power supply voltage control to the power control
O VD power supply voltage control signal output terminal Not used
—
Not used
—
Power supply terminal (for the microcomputer I/F block) (+2.3V)
—
Ground terminal (for the microcomputer I/F block)
I DIN plug detection signal input terminal "H": DIN plug
I LINE IN plug detection signal input terminal "L": LINE or OPT plug
I Microphone plug detection signal input terminal "L": microphone plug
Open/close detection switch of the upper panel input terminal
I
"L": when upper panel close
I Input terminal for the set (open in this set)
I Input terminal for the set (fixed at "L" in this set)
I Patch function detection signal input terminal "L": patch function Not used
I Serial data input from the nonvolatile memory
Serial data output to the nonvolatile memory, A/D converter and liquid crystal display element
O
module
Serial clock signal output to the nonvolatile memory, A/D converter and liquid crystal display
O
element module
Rechargeable battery detection switch input terminal "L": there is rechargeable battery
I
Not used
O Beep sound control signal output to the headphone amplifier
I Input terminal for the main test (normally fixed at "L")
O
Data output terminal Not used
I
Ready/busy signal input terminal Not used
O
Clock signal output terminal Not used
O
Chip select signal output terminal Not used
I
Data input terminal Not used
Description
MZ-N707
49