6-25
6-25 E
2. Power LED does not light in green after transmitting
the POWER on command. It remains lighting in red (in
the STANDBY mode).
2-1. Check the EVER -11V (pin-
1
), EVER+5V (pin-
5
),
EVER+11V (pin-
4
) voltage at CN201 of the power
supply block/
If voltage is abnormal.
t
The power supply block is defec-
tive.
2-2. Check if the fuse on the power block has blown of
not.
If the fuse has blown
t
Replace the fuse.
2-3. Check the P-CONT (pin-
9
) at CN103 of the FR-189
board and P-CONT (pin-
6
) at CN301 of the AI-25
board when the POWER button is pressed.
If it remains at “L”,
t
The signal line has the defective soldering or it is short-
circuited with other signal lines or capacitor or resistor is de-
fective or IFCON is defective or connection between the power
supply block and the AI-25 board is defective, or connector
installation is defective, or the power supply block is defec-
tive.
2-4. Check if the button is kept depressed in the IFCON
self mode.
If the button is kept depressed.
t
The front panel is defec-
tive, or FR-189 board is defective.
2-5. Check PONCHK (pin-
e;
) of IFCON (IC106) on the FR-
189 board.
If it is 0.5 V or more.
t
The power supply is defective, or
FR-189 board is defective.
3. Power LED becomes red (STANDBY mode) in at once
through Power LED lights in Green once when the
POWER button is pressed.
3-1. Check CN201 voltage of the power supply block
when the LED lights in green.
If voltage is abnormal.
t
The power supply block is defec-
tive, or the FR-189 board is defective, or MB-107 is defective
3-2. Check XFRRST (pin-
2
) at CN103 on the MB-107
board.
If it is fixed to “L”.
t
The signal line has defective solder-
ing, or is short-circuited with other signal lines, or parts are
defective.
3-3. Check IFBSY (pin-
3
), XIFCS (pin-
4
), SI0 (pin-
5
),
SO0 (pin-
6
) and SC0 (pin-
7
) at CN103
If they are fixed to “H” or “L”.
t
The signal line has defective soldering, or is short-cir-
cuited with other signal line, or parts are defective, or
SYSCON (IC104) is defective
If they change between “L/H”.
Connector installation is defective, or the FR-189 board is
defective, or SYSCON (IC104) is defective.
If they stay in the center voltage.
Poor connection of flexible wiring board such as it is inserted
in an angle diagonally, or defective soldering, or is short-cir-
cuited with other signal line.
3-4. Check PONCHK (pin-
e;
) of IFCON (IC106) on the
FR-189 board.
If rise-up time from 0.5 V to 1.5 V or more takes longer time,
or it does not exceed 1.5 V or more.
t
The FR board is de-
fective.
4. The LED lights in green but the FL display does not
light when the POWER button is pressed.
Connection between the power supply block and the AI-25
board is defective, or connector installation is defective, or
the FR-189 board is defective.
5. Both picture and audio are not output.
Connection(s) between the power supply block and the AI-25
board, the AI-25 board and the FR-189 board, the AI-25 board
and AV-66/VD-33 boards, AV-66/VD-33 boards and MB-107
board is/are defective, or connector installation is defective,
or AV-66 and/or VD-33 is/are defective.
6. Picture is not normal. (Block noise or others appear.)
The MB-107 board AVD (IC403) or SDRAM (IC404, IC405)
is defective, or ARP & SERVO (IC301) is defective.
