KRF-V7772D/VR-3080
7
CIRCUIT DESCRIPTION
(X08)IC16
(X08)IC15
(X08)IC26
(X09)IC5
(X08)IC36
(X09)IC4
(X08)IC42
(X08)S91-96
(X08)S97
(X08)IC71
(X08)IC3
(X08)IC91
(X08)IC51
(X09)ED1
(X09)K2-5
(X05)
(X08)J81
(X08)IC72
(X08)
(X08)A91
(X08)J84
MAIN UCOM
µ
PD784214GF-527
TACT KEY
ROTARY-
ENCODER
FLDRIVER
uPD780204
DESTYINA
FL
TI
ON SW
LCD REMOTE
TRANSMIT IC
VOLUME IC
TC9412
VOLUME IC
TC9412
VOLUME IC
TC9412
SELECTOR IC
TC9162
SELECTOR IC
NJU7312AL
SELECTOR IC
NJU7313AL
TONE CONTROL IC
TC9184
CODEC
CS4226
DSP
YSS912
SP.RELAY
MUTE
TUNER UNIT
IR RECEIVER
DESTINATION
IRREMOTE
IR RECEIVER
SYSTEM
CONTROL
uPD17215
4. Main microprocessor: uPD784214GF-527(X08: IC71)
4-1 Microprocessor periphery block diagram
Push key
I N P U T SELECTOR
S P A
S P B
MUTE
DISPLAY MODE
TUNER
STEREO
P. CALL
UP
P. CALL
DOWN
ATT
OFF ON FM
AUTO/STEREO MANUAL/MONO
(DOLBY DIGITAL LED : OFF ON)
(Press the key for 2 secs)
CD1
STEREO
TONE (TUNED)
+10 (light on) OFF (light off)
ANALOG DIGITAL
MD/TAPE1
STEREO
IR RECEIVER A(ON) OFF
VIDEO1
PRO LOGIC
VIDEO2
3 STEREO
DISPLAY
VIDEO3
STEREO
VIDEO4
DSP
ARENA JAZZ CLUB
THEATER STADIUM
CATHEDRAL
AV AUX
STEREO
TAPE2
OFF ON
PHONO
STEREO
INPUT LEVEL
0dB -3dB -6dB
KRF-V7772D(K)
COVER1,1(
99.10.29
10:11
AM
y [ W 14
