Sony ZRD-1 Service Manual page 10

1-3-2. UC-1 Board
Ref. No. Color Name
D2503 Green FPGA
D2504 Green 16V
D2512 Green UNIT ON
D2514 Red Standby/error
D2515 Orange 12V
D2516 Green 16V_RDY_STATUS
D2517 Green 16V_RDY
D2518 Green VDD1
D2519 Green VDD2
D2512 and D2514
D2514: Red Lit
Off
Blink
1-4 (E)
Function
Lit: The FPGA (IC2001) configuration has been completed.
Off: The FPGA configuration has not been completed.
Lit: A voltage output of 16 V is normal.
Off: A voltage output of 16 V is abnormal. Or, a voltage of 16 V
is not supplied.
Refer to the following table.
Lit: A voltage of 12 V is supplied from the PS-903 board.
Off: A voltage of 12 V is not supplied from the PS-903 board.
Lit: 16V_RDY_STATUS is High. Display unit is in power ON
state.
Off: 16V_RDY_STATUS is Low. Display unit is in standby mode.
Lit: 16V_RDY is High. Display unit is in power ON state.
Off: 16V_RDY is Low. Display unit is in standby mode.
Lit: The voltage VDD1 is output. (It is output even with one
system.)
Off: The voltage VDD1 is not output.
Lit: The voltage VDD2 is output. (It is output even with one
system.)
Off: The voltage VDD2 is not output.
Lit
During system setup
The picture is displayed
normally.
_
D2517
D2516 D2519
D2512
D2503
D2518
D2504
UC-1 board (side A)
D2512: Green
Off
The power is standby state.
The power is not supplied.
System error
D2515
D2514
Blink
_
_
System warning
ZRD-1/ZRD-2