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4-3. BLOCK DIAGRAM
MAIN/POWER SECTION
INPUT
SELECTOR
J101
IC310
L
12
X0
X
13
ANALOG IN
14
X1
R
R-CH
Q304
TUNER/AUX
10
A
ANA INH
6
INH
Q303
B
A
TUNER UNIT
L CH
R CH
R-CH
FM
RDS
X52
IC52
ANTENNA
4.33MHz
13
AM
RDSCLK
14
16
RDSDATA
FM DET OUT
4
2
DIN
D O
S-METER
FMIF OUT
TUNED
TUNED
STEREO
STEREO
CE-ST
CE
DATA-ST
DATA
CLOCK-ST
CLOCK
TUN-MUTE
MUTING
MUTING
Q307,308
C
16
AD/DF/DAC
IC301
IC317
IC308
9
8
3
41
+L1
56
INLP
UNBAL
BAL
5
6
55
INLM
11
10
1
–L2
39
13
12
DATA(DAC)
27
DADT
BCK(DAC)
11
BCK1
26
BCK2
XIN
36
LRCK(DAC)
X301
10
LRCK1
22MHz
28
LRCK2
35
XOUT
INIT(DAC)
ADDATA
16
DPD
ADDT
12
18
INIT
ATT(DAC)
MCK1
15
IC302
19
MODE
2
4 256FS
SHIFT(DAC)
256CK
22
20
SHIFT
LATCH(DAC)
512FS
21
LATCH
25
512CK
FL801
FL TUBE
FL
DRIVER
G1-G15 S1-S35
IC861
DATA
VF1
VF2
63
DAT
G1
40
CLK
62
CLK
SEL
G15
54
61
CS
FL RES
60
RST
S1
5
S35
39
–29V
56
V FL
+3.3V
(SW)
D843
LED SW
P1
1
SLEEP
Q843
D846
LED SW
P2
2
MUTING
Q846
D844
LED2
LED SW
DISPLAY
Q844
D845
LED4
LED SW
FLOW
Q845
D847
LED1
LED SW
+3.3V
STANDBY
(EVER)
Q847
D841
LED3
LED SW
JOG
+12V
SELECT
Q841
IDAC
IC303
4
18
IN1+R
IC312,314(2/2)
IC314(1/2)
17
IN1–R
IOR+
6
BAL UNBAL
LPF
IOR–
5
2
IN2+R
20
21
IN2–R
L-MUTE
DRIVER
MUTE
CIREF
Q305,306
Q301
1
IC306
ATT
DRIVER
Q311,312
I-AMP
R-CH
13
VOUT1
CLK(VOL)
8
CLK
DI(VOL)
9
DI
BS(VOL)
10
BS
VOL
INIT(DAC)
11
RES
IC307
S805
S802
S803
S804
BAND
ENTER
TUNING
JOG MENU
KEY1
KEY2
S806
DISPLAY
POWER KEY
S801
I/u
VOL A
RV801
VOL B
VOL
ENC A
RV802
ENC B
JOG
SIRCS IN
IC881
1
SIRCS
• Signal Path
TUNER :
• R-CH is omitted.
19
19
POWER AMP
IC501
+VOUT1
2
OUTPUT
DRIVER
6
IN1
NF1
5
Q502-504
–VOUT1
3
OVERLOAD DET
Q505
R-CH
ATT
Q309
R-CH
Q700
R-CH
IC502
IC700
1
OVERHEAT DET
OVER LOAD
2
DC
8
VCC
7
ON-MUTE
4
AC-OFF
RELAY
6
SPEAKER DET
D509,725
AC DET
D700
-29V REG
–29V
Q703
D728
D750
+39V
FAN
IC751
+10V
SWITCH
+10V
–39V
3
1
REG
Q706,707
IC752
D751
IC305
+15.5V
+5V
+6V
+5V
3
1
3
1
REG
REG
IC301
IC753
IC307
+6V
IC317
–15.5V
–6V
–6V
3
2
IC318
REG
D101-104
IC754
+12V
+12V
3
1
REG
+5V
IC756
IC755
D702-705
+3.3V
+5V
+3.3V
3
1
3
1
REG
REG
(SW)
D801-804
IC757
+3.3V
+3.3V(EVER)
3
1
REG
STR-LSA1
RY501
TM501
3
4
L
SPEAKERS
R
R-CH
R-CH
J501
PHONES
RY502
BUFFER
PROTECT
D
Q701,702
POWER RY
T2
E
Q705
D729
D727
D730
RY1
F1
F701
F702
AC IN
VF1
VF2
F703
T1
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