2-14
2-5. LED Indicator Infomation on Boards
2-5. LED Indicator Infomation on Boards
<Top view>
D301
D300
D601
D800
D2109
D711
D51
APR-1 Board
SS-52 Board
SS-52 Board
LED No.
Name
Color
Description
Normal State
D300
–––––
–––––
Unused
–––––
D301
SYS 1
Amber
Blinks during SYS 1 V25 CPU normal operation.
Blinks
D601
SYS 2
Amber
Blinks during SYS 2 Z80 CPU normal operation.
Blinks
D711
SV
Amber
Checks the ROM and RAM for communication when the power
Blinks
switch is set to ON.
Lights for scores ms at intervals 1 to 2 seconds. (For the blinking
pattern when abnormality occurred, refer to the figure shown next page.)
D800
DRUM
Amber
Blinks during drum microcomputer normal operation. Usually lights
Blinks
for 30 msecond at intervals of about one second.
The blinking interval is inverted when the drum is locked.
D2109
DT
Amber
Blinks during DT microcomputer FMC-16 CPU normal operation.
Blinks
APR-1 Board
LED No.
Name
Color
Description
Normal State
D51
APR 1
Amber
Blinks during APR 1 microcomputer normal operation (when a 1/2VD
Blinks
signal is received from the SS-52 board).
Summary of Contents for DVW-522
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Page 49: ...2 9 2 4 1 Printed Circuit Board Locations Rear view Front view ...
Page 50: ...2 10 Top view of casssette compartment 2 4 1 Printed Circuit Board Locations Top view ...
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Page 136: ...7 2 7 2 OVERALL 1 4 OVERALL 1 4 7 2 Overall Signal Processing System OVERALL 1 4 DVW 522 522P ...
Page 137: ...7 3 7 3 OVERALL 2 4 OVERALL 2 4 Signal Processing System OVERALL 2 4 DVW 522 522P ...
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