Service manual

10
8-1-2. OUTPUT CONTROL (IC700: M38022)
OUTPUT CONTROL
3.3V ON/OFF
5.0V
ON/OFF
9.0V
ON/OFF
OUTPUT
VIDEO
21PIN SCART
21PIN SCART
(TV/DVD, SQUEEZE, RGB)
S
S1
AUDIO
MUTE
MAIN
OPERATION
FLD
LED
MAIN
FLD/LED
8-1-2. Output Control Microprocessor
(IC700:M38022)
Main operation features of this microprocessor is
as follows.
Power supply control : Power efficiency switching.
3.3V line ON/OFF
5.0V line ON/OFF
9.0V line ON/OFF
Out put selection of the OUTPUT PCB.
VIDEO output stage control
21PIN SCART output signal selection
21PIN SCART control signal selection
(TV/DVD, SQUEEZE, RGB)
AUDIO output control
Output MUTE control
Feedback to the MAIN microprocessor
OPERATION PCB
Operation Button key scan
Remote control code reading
FLD indication
LED indication
Communication between MAIN microprocessor
Command transmission (by user controlable)
Data receiving for FLD/LED indication
S-Video out S1 control
/ In case of no DISC
DVD
/
While DVD Video playback
8-2.
1.
2. (STOP) (PAUSE)
FLD
8-2. TEST MODE
How to set up the TEST MODE
1. Remove any Disc from the tray, and turn OFF
the mains power.
2. Turn ON the mains power while depress the " "
(STOP) and " " (PAUSE) buttons together. Do
not release buttons till FLD shows follows.