Test Mode - Kenwood LVD-K9200 Service Manual

LVD-K9200
CIRCUIT DESCRIPTION
2. Test Mode
2-1. Setting the Test mode
This microprocessor built in this unit can be put to
TEST MODE by the just short-circuiting the test pins 3
and 4 on X35-2120 (A/2).
POWER ON
YES Test mode Inspection mode
Size detection
Track No. "00"
display
STOP mode
P-MODE, DOWN
OPEN/CLOSE
Are TEST pin -
short?
YES
Both CD and
LD have been
inspected 2,
Size detection
P-MODE, DOWN
OTHER OPEN/CLOSE
Test mode CD inspection
key processing mode key processing
LD inspection =
P-MODE, DOWN
OPEN/CLOSE
LO inspection mode
key processing
Set mode
(Normai state)
14