Alpine 7980M - Page 60

Block Diagram
@ Q001~003
NEIGHBORING
REJECT DET./MUTE
FM/MW/LW TUNER UNIT (FEOO1) MUTE / EM
ANTENNA: tinwyte coe ee pie STOR ee a a Rg ee Ene
RECEPTACLE |
ETOO2
Cc
CERAMIC CERAMIC
FILTER FILTER
LO/DXxX
SWITCHING
F-O/FM L/D
Q007, 00¢
LPF.
Osc AMP
Q010, 011
L.P.F. SWITCH
(LW)
Q008, 013 Q805~807
TUNER ON
SWITCHING
FM +B FM +B
Q014
SWITCHING
-~75-
7980M 7980M
1C002
MULTI PASS
DETECTOR
1€207 (2/2),
1c001 1C207 (1/2) 1€208 (2/2),
1€208 (1/2) 1C209
NOISE CANCELLER
MPX TREBLE / BASS BUFFER
AMP AMP
RCA JACK
kD)
1€204, Q203 1C205 FL 1€210, 211
+ (O)
CD/TUNER BUFFER ELECTRICAL VOLUME R
LR!
witcHinG
ee
1C206
>
i.
L
(REAR) JK202
S)
OPOWER ANTENNA
(FRONT) JK203
MUTING
Q204~207
Q809~812
MUTE
DRIVER BATT
[ ene |
Q817, 818
OUT REMOTE
DRIVER
REMOTE O
POWER SUPPLY
CONTROL
CONNECTOR
1€203
ISOLATOR
AMP
TO CHANGER UNIT
IN PAUSE
DRIVER
Q815, 816
POWER ANTENNA
DRIVER LEAD
ET902 -1
S:G
IN INTERRUPT AUDIO INTE RRUPT
R L PO
DIN JACK CG) ones | | later
JK201 (4G) Bus INTERRUPT Pp AUDIO INTE RRUPT
BUS
GND
WITCHIN
OUT
LEAD
G) @® z-COM ae
(6) 1C601
as GND LEAD
ACC POWER ON a
+ 13.8V.
IC802, Q803
AUDIO
REGULATOR
CONTROL
Q801, 804
DATA BUS
CONTROL
601
LEVEL
SWITCH
ACC
DETECTOR
BATTERY
DETECTOR
Notes: @:For Germany Model only, Others: Comnon.
“76