Kenwood KRF-V7772D Service Manual page 7

QQ
3 7 63 1515 0
Push key I N P U T SELECTOR
TUNER
CD1
MD/TAPE1
VIDEO1
VIDEO2
DISPLAY VIDEO3
VIDEO4
AV AUX
PHONO
4. Main microprocessor: uPD784214GF-527(X08: IC71)
4-1 Microprocessor periphery block diagram
TE
L 13942296513
(X08)S91-96
TACT KEY
(X08)IC91
FLDRIVER
uPD780204
(X09)ED1
FL
(X05)
TUNER UNIT
www
.
CIRCUIT DESCRIPTION
S P A S P B
P. CALL P. CALL
STEREO
UP DOWN
STEREO
STEREO
PRO LOGIC
3 STEREO
STEREO
DSP
STEREO
STEREO
(X08)IC16
VOLUME IC
TC9412
(X08)IC26
VOLUME IC
TC9412
(X08)IC36
VOLUME IC
TC9412
(X08)S97
ROTARY-
ENCODER
DESTYINA TI
ON SW
x ao
y
i
(X08)IC72
LCD REMOTE
TRANSMIT IC
uPD17215
KRF-V7772D/VR-3080
8
MUTE
ATT
AUTO/STEREO
OFF ON FM
(DOLBY DIGITAL LED : OFF
TONE (TUNED)
+10 (light on)
ARENA
THEATER
CATHEDRAL
OFF
INPUT LEVEL
0dB
(X08)IC15
SELECTOR IC
TC9162
(X09)IC5
Q Q
3 6 7 1 3
SELECTOR IC
NJU7312AL
(X09)IC4
SELECTOR IC
NJU7313AL
(X08)IC71
MAIN UCOM
µPD784214GF-527
u163
.
(X08) (X08)A91
IR RECEIVER IRREMOTE
DESTINATION
2 9 9 4 2 8
DISPLAY MODE
MANUAL/MONO
ON)
OFF (light off)
(Press the key for 2 secs)
ANALOG
IR RECEIVER A(ON)
JAZZ CLUB
STADIUM
TAPE2
ON
-3dB -6dB
1 5 0 5 8 2 9 9 4
(X08)IC42
TONE CONTROL IC
TC9184
(X08)IC3
CODEC
CS4226
(X08)IC51
DSP
YSS912
(X09)K2-5
SP.RELAY
MUTE
(X08)J81
m
SYSTEM
CONTROL
co
(X08)J84
IR RECEIVER
9 9
DIGITAL
OFF
2 8 9 9
7