Kenwood KDC-W4044UA Service Manual page 20

KDC-W4044UA/W4044UAY/W4044UG/W4044UGY
KDC-W413UA/W413UAY/W4544U/W4644UY
Press key. (Exit ROM data transfer mode.)
[ ]
Turn power off.
Remove front-end (A1).
r
Mother unit (X34-)
FRONT-
END (A1)
Install new front-end (A1).
No ROM correction or other data status.
t
Mother unit (X34-)
FRONT-
END (A1)
E2PROM
20
ROM DATA TRANSFER PROCESSES
SYSTEM
μ-COM (IC1)
E2PROM
SYSTEM
μ-COM (IC1)
E2PROM
Turn power on.
Press and hold the [1] and [3] keys press reset button. (Enter
the system in the test mode.)
Press [B.BOOST] key. (Enter the system in ROM data
transfer mode.)
Press (or .) (Select WRT)
[ ] [ ]
Press key for 1 second or longer. (Data transfer)
[ ]
y
Mother unit (X34-)
FRONT-
END (A1)
E2PROM
System μ-COM (IC1) copies
data on the mother unit (X34-) into
E2PROM in the front-end (A1)
WRT OK
Press key. (Exit ROM data transfer mode.)
[ ]
SYSTEM
μ-COM (IC1)
E2PROM
W-OK