Pu-122 Board - Sony VSR-2000A Installation Manual

2-6. Function of Switches/LEDs on Board

2-6-8. PU-122 Board

A B C
S101
S102
Switches
n
Do not change the setting of the switch described as "Factory use only"
Ref. No. Address Name
S101 (C-7) Mode select switch
S102 (C-7) Reset switch
LED
Ref. No. Address Color
D102 (G-8) Yellowish green
2-16 (E)
E G
D F
D102
Function
Sets the operating mode of CPU (IC101).
S101-1 : Operating mode setting
OFF : Monitor mode
ON : Normal mode
S101-2 : RS-232C channel setting
OFF : CH-0
ON : CH-1
S101-3 : Factory use only
S101-4 : Factory use only
Initialize the PU-122 board
Name
CPU RUN
J K
H
Factory setting
ON
1
––––––
Function
For checking CPU operations
1
2
3
4
5
6
7
Side A (Component side)
8
2 3 4
Normal condition
Lights up
VSR-2000A