– 19 –
XL-3600
XL-3700/C
Figure 19 BLOCK DIAGRAM (1/3)
ANTENNA
TERMINAL
AM Band
Coverage fL
FM MUTE
LEVEL
AM IF
FM IF
FM IF
FM IF
AM IF
AM Band
Tracking fL
VD301
SVC348S
FM IF DET./
FM MPX./AM IF
IC303
LA1832S
+5V
+5V
VT
+5V
+5V
+B
FM +B
+5V
FM +B
+5V
T302
T306
T351
CF301
CF302
CF352
CF351
SWITCHING
Q301
VR351
X352
4.5MHz
VOLTAGE
REGULATOR
AM
GND
FM
75ohms
SO301
VSM
AM RF
OUT
OUT
OUT
OUT
IN
IN
CUT
AM LOW
FM/AM
MPX VCO
MPX IN
MO/ST
L-CH
R-CH
FM AFC
AM OSC
AM OSC
(AM/FM)
PHASE
PHASE
IF OUT
VCC
FM DET
STEREO
SD
GND
AM IF
REG
AM MIX OUT
IN
IN
FM IF
23
22
21
20
19
18
17
16
15
14
24
13
12
11
10
9
8
7
6
5
4
3
2
1
PLL(TUNER)
11
10
9
8
7
6
5
4
3
1
PD
IF IN
AM IN
FM IN
VDD
AIN
AOUT
VSS
X OUT
22 21 20
19
18
17 16 15
14 13 12
FM
FM
MUTE
CE
DI
CL
DO
MO/ST
IF REQ
X IN
IC302
LC72131
8
7
6
5
4
3
2
1
FE301
FM FRONT END
TP301
456kHz
X351
Q351
Q360
ZD351
TUNER PWB
11
10
9
8
7
6
5
4
3
2
1
SD
FM ST
DO
CL
CE
DI
A_12V
D_GND
TUN_L
TUN_R
A_GND
TO
MAIN PWB
CNS301
SWITCHING
RESET
SWITCHING
SWITCHING
Q701
Q702
Q703
COM0
FAN_DET
FAN
COM3
SEG0
SEG33
REMOCON
P—CONT
VDD
32.768kHz
8MHz
38
5
4
1
1
100
67
66
65
64
63
62
61
60
59
58
33
57
56
54
53
52
39
48 49 50
32
47
8
4
LCD701
FL DISPLAY
TO
MAIN PWB
REMOTE
SENSOR
RX701
RESET
23
VSM
VLC1
VLC2
VLC3
7
6
5
MMOD
VREF
VREF+
VSS
15
24
14
11
SYS_STOP
POWER
38
37
13
12
10
55
21
9
X701
X702
OSC1
OSC2
XO
XI
CLID_SW
SW711~713
SW725~728
SW709
SW718~720
SW710
KEY1
KEY2
18
17
16
SYSTEM MICROCOMPUTER/
FL DRIVER
IC701
IX0043SJ
DATA
ST
SD
51 41 42
B-LIGHT
DI
CL
DO
CE
28
27
26
25
SURR
P-MUTE
CD+B
46
45
43
CLE
40
DISPLAY PWB
Q708
Q707
Q709
Q706
GND
LED701 LED702
GND
LED704 LED703
LED PWB
TO
MAIN PWB
TO
CD PWB
Q806
Q804
Q807
CD LID
MOTOR DRIVER
7
6
5
4
3
2
1
7
6
5
4
3
2
1
M_GND
M_12V
USWD5.6V
P_CONT
D_GND
FAN_CONT
FAN_DEC
13
12
11
10
9
8
7
6
5
4
3
13
12
11
10
9
8
7
6
5
4
3
2
1
CLE
D_GND
SURROUND
P_MUTE
CD+B
DI
CE
CL
DO
STEREO
1
2
SWITCH PWB
CD LID
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
CD-RW
PU-IN
BUS0
BUS1
BUS2
BUS3
BUCK
CCE
CD-RES
CD-STB
GVSW
PU-IN
BUS0
DIMMER
LIGHT
SP_RLY
SP_RLY
CLID_UP
CLID_DW
BUS1
BUS2
BUS3
BUCK
CCE
CD-RES
CD-STB
1
2
3
5
6
7
8
9
LED PWB
M
CD LID
OPEN/CLOSE
1
2
1
2
3
3
PROTECT
AMP_DET
TA7291S
CNW701
CNW702
SW802
CNW704
CNW703
IC804
LED801
M801(246-6)