Block Diagram; Circuit Description - Kenwood VR-208 Service Manual

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1. Microprocessor CXP82832-141Q(X09 : IC51)
1-1 Microprocessor periphery block diagram
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
TC9163/9164
(X08) IC4
NJM2279M
VIDEO SELECTOR IC
(X09) A501
REMOCON
SERIAL
VOLUME
ENCODER
MULTI
ENCODER
SELECTOR
ENCODER

CIRCUIT DESCRIPTION

FL DISPLAY (X09) ED51
11-MT-116GK
11GRID
17SEGMENT
X3
X4
X3
CXP82832-141Q
X3
BUSY
DATA
(X09) S517
X2
(X09) S519
X2
(X09) S518
X2
Published in Heiloo, Holland.
KRF-V7510D/V8010D/VR-208/209
Key matrix
* No. of
12 KR0 13 KR1
KS0 P.CH DOWN ON/STANDBY
81
KS1 P.CH UP DIMMER
80
KS2 BAND LISTEN MODE
79
KS3 AUTO SOUND
78
KS4 MEMORY SETUP
77
KS5 INPUT MODE
76
KS6 DSW0 DSW1
75
KS7 DSW3
74
X8
X3
: u -COM Port NO.
14 KR2
SPEAKER A
SPEAKER B
BASS BOOST
MONITOR
SOURCE DIRECT
DSW2
DSW (AC3)
(X08) IC1
DSP IC
X4
YSS248
X1
(X08) IC2
DAC IC
CS4226
X3
(CRYSTAL)
X1
(X09) IC5, 6
FUNCTION SW
TC9162/9164
X3
8.0MHz
CE
RESET
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
X2
X24CO2
(XICOR)
(M TYPE ONLY)
12/6/15
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