Pin
No.
Mark
I/O
Division
Function
1
RVDD 3
I
Power supply to internal
DRAM
2
RVDD 18
O
Voltage regulator output
terminal (Connects to
internal DRAM supply
terminal)
3
RVDD 23
—
Voltage regulator input
terminal (Accepts a supply
voltage identical to that for
IO pad)
4
LON
I
Voltage regulator ON/OFF
control signal input
terminal (1:ON, 2:OFF)
5
TMDISY
O
Microprocessor interrupt
signal 3 output terminal
(for monitoring)
6
TSGSY
NC
O
ATRAC frame sync. signal
output terminal (for
monitoring)
7
MONI6
O
Monitor signal output
terminal 6
8
MONI5
O
Monitor signal output
terminal 5
9
NRST
I
Chip Reset signal input
terminal (O:reset)
10
SELAD
I
Microprocessor IF address
data select signal input
terminal
11
SSCK
I
Microprocessor IF shift
clock signal input terminal
12
SSDW
I
Microprocessor IF write
data input terminal
13
SSDR
O
Microprocessor IF read
data output terminal
14
NRQ
O
Microprocessor interrupt
signal 1 output terminal
15
MDAS
CSY
O
Microprocessor interrupt
signal 2 output terminal
16
FG
I
FG input terminal
17
TRDP
O
Tracking drive (+) PWM
signal output terminal
18
TRDM
O
Tracking drive (-) PWM
signal output terminal
46
Summary of Contents for SJ-MJ88
Page 6: ...Fig 1 Fig 2 4 2 Grounding for electrostatic breakdown prevention 1 Human body grounding 6 ...
Page 9: ...9 ...
Page 10: ... Check the P C B as shown below 10 ...
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Page 16: ...5 4 Replacement for the traverse motor Follow the Step 1 Step 3 of item 5 1 16 ...
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Page 30: ...Fig 9 30 ...
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Page 41: ...8 Schematic Diagram Notes 8 1 Type Illustration of IC s Transistors and Diodes 41 ...