Circuit Description - Kenwood DP-SE7 Service Manual

1. Microprocessor
1-1. Microprocessor periphery block diagram
SLT SW
CD mecha
KSL-
213BGN

CIRCUIT DESCRIPTION

(X32) IC2
D.S.P.
CXD 2507AQ
CLK, DTA, LAT
S. CLK M. ON
MUTE XLON
MOTOR CONTROL
TERMINAL
µPD78044FGF
SWITCH INPUT
X 2
KEY INPUT
GRID X 8
X 2
SEGMENT X 12
Seg key scm pin
6
KEY MATRIX
DP-SE7/SE7(G)/SE9
SENSE
SCOR
SUBQ
(SLTSW)
(FOK , GFS)
SDATA
SBUSY
(X25) IC5
SGATE
SCK
SDT
8-BT-207GK
SYSTEM
SERIAL
SIGNAL
KAN03
3