JVC KT-DB1000 Service Manual page 33

Q Q
Block diagram 3 7 6 3 1 5 1 5 0
ANTENNA
TU1
DAB TUNER
S1
ANTENNA
POWER
SUPPLY
TH1
PTC
T E
L 1 3 9 4 2 2 9 6 5 1 3
BATT
TUSCL
TUSDA
Q891
TR.SW
POW OUT
IC802 IC803 IC804
SW.REG SER.REG SER.REG
IC801
SER.REG
IC806
SER.REG
w w w
IC805
CMOS REG
.
http://www.xiaoyu163.com
X1
IF
IC1
DAB BASE BAND
MP2 DECODER
MPUDAI
MPUDAO
MPUCK
MPUEN
MPUMOD
NIRQ
WFIC
DABRST
IC701
CONTROLLER
ANT+BIN
(P3.3V)
RESET
IC851
A3.3V
RESET
D3.3V
(P3.3V)
DI
DO
X701
A5V
SK
CS
9V
IC702
EEPROM
(P3.3V)
P3.3V
P5V
x a o u 1 6 3
y
i
http://www.xiaoyu163.com
8 9
CD CHANGER
L-CH
MCLK
R-CH
IC501 IC901
DAC LPF AMP.
(A5V) (9V)
BICK
SDTI
LRCK
DACRST
DACCCLK
DACCDTO
DACCSN
Q Q
3 7 6 3 1 5 1
DZFL
DZFR
AUDIOSEL
AMUTEL
AMUTER
JBUSINT
JBUSI/O
JBUSDAO
JBUSDAI
IC771,IC772
JBUSCK
JBUS BUFFER
(P5V)
c o
.
2 4 2
9 8
L-CH
R-CH
IC911
Q121
AUDIO
JBUS AUDIO OUT
Q221
SELECTOR
MUTE
(9V)
5 0 8 9 2 4 9 8 2
JBUSCK
JBUSDA
Serial Communication Signal
Analog Signal
Other Control Signal
m
9 9
9 9
2-1