Pin
No.
Terminal
Name
I/O
Function
77 SBP /
RETRY
-
Spindle management retry test
signal output (Not used, open)
78 SRV /
RETRY
-
Servo retry test signal output
(Not used, open)
79 ARDSKIP -
Address skip test signal output
(Not used, open)
80 SPMWE
-
SPM test signal output
(Not used, open)
17.5. IC72 (M51V4400D7FS): / 4M DRAM
Pin
No.
Terminal
Name
I/O
Function
1
DO1
I/O DRAM data 1 input/output
2
DO2
I/O DRAM data 2 input/output
3
WE
I
DRAM write enable input
4
RAS
I
DRAM row address strobe input
5
A9
I
DRAM address 9 input
9
A0
I
DRAM address 0 input
10
|
12
A1
|
A3
I
DRAM address 1 - 3 input
13
V
CC
I
Power supply terminal
14
|
18
A4
|
A8
I
DRAM address 4 - 8 input
22
OE
-
DRAM output enable input
(Not used, connected to GND)
23
CAS
I
DRAM column address strobe
input
24
DO3
I/O DRAM data 3 input/output
25
DO4
I/O DRAM data 4 input/output
26
V
SS
-
GND terminal
18. Measurements and Adjustments
Note:
Because this unit uses the optical magnetic recording, the unit
outputs over 10 times more laser than a CD player does. In
adjustment mode, the laser is always being output. Therefore, be
33
Summary of Contents for SJ-HD515
Page 8: ...8 ...
Page 9: ...9 ...
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Page 11: ...7 4 Replacement for the belt and loading motor ass y Follow the Step 1 Step 3 of item 7 1 11 ...
Page 12: ...12 ...
Page 14: ...14 ...
Page 46: ...F000306000YM KH 46 ...
