Sony GY-2120WD, Maintenance Manual

Page: 40 / 484

1-30
GY-2120WD/WS
1-9. LED Indicator Information on Board
1-9. LED Indicator Information on Board
MA-83 board
LED No. Color Description
D401 Red Lights when an A/C-channel sync pattern error occurs. (High in level.)
D402 Amber Lights when an A/C-channel sync pattern error occurs. (Middle in level.)
D403 Amber Lights when an A/C-channel sync pattern error occurs. (Middle in level.)
D404 Green Lights when an A/C-channel sync pattern error occurs. (Low in level.)
D405 Green Lights when an A/C-channel sync pattern error occurs. (Low in level.)
D406 Red Lights when a B/D-channel sync pattern error occurs. (High in level.)
D407 Amber Lights when a B/D-channel sync pattern error occurs. (Middle in level.)
D408 Amber Lights when a B/D-channel sync pattern error occurs. (Middle in level.)
D409 Green Lights when a B/D-channel sync pattern error occurs. (Low in level.)
D410 Green Lights when a B/D-channel sync pattern error occurs. (Low in level.)
D411 Green Lights when a C1 error occurs in channel A.
D412 Green Lights when a C1 error occurs in channel B.
D413 Green Lights when a C1 error occurs in channel C.
D414 Green Lights when a C1 error occurs in channel D.
D415 Green Lights when a C2 error occurs.
EQ-66 board
LED No. Color Description
D602 Amber Indicates the status of the following by blinking pattern as shown in the drawings on the
below.
. Read and write check of the ROM and RAM at power on.
. Drum servo check during nomal operation.
<Blinking pattern of D602 on EQ-66 board>
ROM RAM error
lighting
off
Drum not locked
8 ms
116 ms
Repeat
50 ms
lighting
off
1600 ms
Repeat
Drum locked
50 ms
lighting
off
1900 ms
Repeat