Circuit Description - Kenwood KRF-V7510D Service Manual

1. Microprocessor CXP82832-141Q(X09 : IC51)
1-1 Microprocessor periphery block diagram
FL DISPLAY (X09) ED51
11GRID
LED
(PEAK. LEVEL)
(DOLBY DIGITAL)
(STANDBY)
(X00) POWER Relay - (K1)
SP. A RELAY - (K1)
SP. B RELAY - (K2)
(X09)
SURR RELAY - (K3)
CENTER RELAY - (K4)
(X09) IC6,7
AUDIO SELECTOR
X3
TC9163/9164
(X08) IC4
X3
NJM2279M
VIDEO SELECTOR IC
(X09) A501
REMOCON
SERIAL
BUSY
DATA
(X09) S517
VOLUME
ENCODER
(X09) S519
MULTI
ENCODER
(X09) S518
SELECTOR
ENCODER

CIRCUIT DESCRIPTION

Key matrix
KS0 P.CH DOWN
81
KS1
80
KS2
79
KS3
78
KS4
77
11-MT-116GK
KS5
76
KS6
75
KS7
74
X8
17SEGMENT
X3
X4
CXP82832-141Q
X2
X2
X2
KRF-V7510D/V8010D/VR-208/209
* No. of : u -COM Port NO.
12 KR0 13 KR1 14
ON/STANDBY SPEAKER A
P.CH UP DIMMER SPEAKER B
BAND LISTEN MODE BASS BOOST
AUTO SOUND MONITOR
MEMORY SETUP SOURCE DIRECT
INPUT MODE
DSW0 DSW1 DSW2
DSW3 DSW (AC3)
X3
8.0MHz
CE
RESET
X2
(M TYPE ONLY)
KR2
(X08) IC1
DSP IC
X4
YSS248
X1
(X08) IC2
DAC IC
CS4226
X3
(CRYSTAL)
X1
(X09) IC5, 6
FUNCTION SW
TC9162/9164
X3
AUDIO MUTE
TUNER MUTE
-10dB ATT
(X09) IC9
VOLUME IC
X3
M62446FP
TUNER (X09) IC2
X1
LC72131
X3
(X09) IC1
SD
STEREO
(X09) IC52
E2PROM
X24CO2
(XICOR)
7