Kenwood KDC-W241AY Service Manual page 16

KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
Turn power on.
Press and hold the [1] and [3] keys and press reset button.
(Enter the system in the test mode.)
Press [B.BOOST] key. (ROM data System enters data
transfer mode.)
Press (or .) (Select READ)
[ ] [ ]
Press [ ] key for 1 second or longer. (Data transfer)
e
Mother unit (X34-)
FRONT-
END (A1)
E2PROM
In case of [2]
READ OK
In case of [1] or [3]
READ OK2
Press [ ] key. (Exit ROM data transfer mode.)
Turn power off.
Remove front-end (A1).
r
Mother unit (X34-)
FRONT-
END (A1)
16
ROM DATA TRANSFER PROCESSES
E2PROM
R-OK
R-O2
E2PROM
Install new front-end (A1).
No ROM correction or other data status.
t
Mother unit (X34-)
FRONT-
END (A1)
E2PROM
Turn power on.
Press and hold the [1] and [3] keys and press reset button.
(Enter the system in the test mode.)
Press [B.BOOST] key. (Start transferring ROM data.)
Press [ ] (or [ ] .) (Select WRT)
Press key for 1 second or longer. (Data transfer)
[ ]
y
Mother unit (X34-)
FRONT-
END (A1)
E2PROM
In case of [2] or [3]
WRT OK
In case of [1]
WRT OK2
Press key. (Exit ROM data transfer mode.)
[ ]
E2PROM
E2PROM
W-OK
W-O2