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RXD-052/702/792/772S/852/A81/A601/A701
CIRCUIT DESCRIPTION
4. Main microprocessor M30622MC-526FP (X13:1C1)
4-1 Microprocessor periphery block diagram
;
X28(IC1)
DECK
PLAY/REC
EQ IC
(HA12219NT)
CD MECHA
(MGC
— E9001)
X14(IC51)
X13(IC1)
DOT
DRIVER
(M66004F
P)
X14(IC52,53)
MAIN
U-COM
LED DRIVER x 2
(BU2090)
M30622MC-526FP
X13(IC7)
DSP/DAC IC
(CXD2587Q)
X13(IC3)
RDS IC (E,T,Q TYPE)
(SAA6579)
DOLBY PROLOGIC IC
(CXD2718Q)
| 4-2 VOLTAGE KEY MATRIX
DECK
MECHA
(CMAT
2 Z)
X13(IC2)
AUDIO CONTROL
IC
(M6249
2FP)
X13(A1:IC2)
PLL IC
(LOT 213)
X28(IC4)
EXPANDER
IC
(TC74HC166AP)
DECK
PORT
DRIVER
(BU 2 0 9 OF)
INPUT VOLTAGE
KEY1
KEY2
KEY3
(V)
(HEX)
Pin97
Pin95
Pin94
0.00~0.26
OOH~ODH
DISC SKIP
BAND
TUNING
0.27~0.81
QEH~29H
DISC2
EX. BASS (SW)
DISP./DEMO
0.82~1.37
_ 2AH~46H
CD STOP
ENTER
INPUT
1.38~1.94
47H~63H
OPEN/CLOSE
RWD
SELECT
1.95~2.51
64H~80H
A/B
FF
RVS. MODE
2.52~3.07
81H~9DH
FWD PLAY
PLAY/PAUSE
TAPE STOP
_3.08~3.62
9EH~B9H
RVS PLAY
DISC1
REC
3.63~4.16
BA~D5H
DOLBY(T.EQ.)
POWER
DISC3
4.17~4.73
D5~F2H
NO KEY
MENU
BACK
4.74~5.00
F3H~FFH
KEY OFF
KEY OFF
KEY OFF
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