Panasonic JB-3300 Technical Manual page 403

FUNCTION SETTINGS AND MOUNTING METHOD FOR NDC 5027M BOARD
General Description
This section describes the jumper-plug function settings and mounting method
for the NDC 5027M board.
Function Settings
The functions are set using the jumper plugs as shown below.
JPl: Memory address setting at location Cl on the board
( JP |
O T
0000000 0
O0O00000 0
EN | aia | are] aie |
Al3 AI5 AI? AIY | .
EN: Short-circuit this to enable use of the memory. The address
setting is short circuit = O and open circuit = l.
Address settings Al3 to Al9 are wired on the PCB to C8000Hex.
JP2: Controller base address setting
JP 2
O 6
0O0O0000 0
OO00000
as |as |az7 [ag
A4 A6 A8
The address setting corresponds to short circuit = O and open circuit
= Ll.
Address settings A3 to A9Y are wired on the PCB to 320 Hex.
JP6:. Magnetic disk drive control signal and function setting
JP 6
3 2 |
Switch operation of magnetic disk drive control signal No. 2.
terminal: |
Between 1 and 2: Reduced write current
Between 2 and 3: Head select 2
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