XAV-7W
21
21
SECTION 6
DIAGRAMS
6-1.
BLOCK DIAGRAM – MAIN Section –
TUNER UNIT
TU2
2
1
ANT-AM
ANT-FM
5
VCC (8.5V)
16
VDD (5V)
11
VDD E2P (5V)
SDA (I2CBUS)
SCL (I2CBUS)
12 13
14
S-METER
17
SDA (E2PROM)
18
SCL (E2PROM)
10
MPX
8
AM-DET
SDA
SCL
S MUTE
AM IF
10
MPX1
12
IIC BUS
DIGITAL
CONTROL
17
MP IN
19 20
R-CH
R-CH
R-CH
OUTSW
PILOT
CANCELATION
AM/FM NOISE
BLANKER
D/A
CONVERTER
DEMODULATOR
STEREO ADJUST
STEREO BLEND
HIGH-
CUT
LPF
PILOT DET
LPF
QUAL
S & H
PLL
LEVEL
14
13
QUALITY
16
PULSE
FORMER
44
38
33
R-CH
FRONT
AUDIO OUT
REAR
AUDIO OUT
MUTING
Q312-2
MUTING
Q311-2
MUTING
Q312-1
MUTING
Q311-1
MUTING
Q310
IN1
OUT1+
2
CN901 (1/2)
POWER AMP
IC171
FL+
IN2
IN3
IN4
14
15
12
11
22
4
OUT1–
1
FL–
OIT2+
3
FR+
OUT2–
4
FR–
OUT3+
10
RL+
OUT3–
9
RL–
OUT4+
11
RR+
OUT4–
12
14
15
7
13
RR–
SBRK
ACC
ATT
ILL
AUX
10
MUTE
ST-BY
BEEP
ST-BY
9
7
5
17
19
21
23
3
15
55
SUB OUT
INPUT
MULTIPLEXER
LOUDNESS
VOLUME
TONE
CONTROL
OUTPUT
SELECTOR
SUB WOOFER
FILTER
SOFT STEP
FADER
MIXER
SOFT
MUTE
I2C-SDA
I2C-SCL
CN3
1
3
(R)
(L)
(R)
(L)
(R)
(L)
SIDEBRK 58
ACCIN 81
TEL ATT 117
ILL-IN 95
70 71
ACCESSORY CHECK
Q910
LEVEL SHIFT
Q906
ILLUMINATION
CHECK
Q904
BATTERY OFF
MUTE DRIVER
Q306
MUTING
CONTROL SWITCH
Q307
MUTING
CONTROL SWITCH
Q301
D310
BACK-UP B+
D15
D311
28
27
OUTLF
OUTLR
AU-L
AM
23
SPECTRUM
ANALYZER
21
LOW-PASS
FILTER
IC101
B
SA DATA,
SA CLK
SA CLK
SA CLK
SA DATA
SA OUT
INPUT SELECT, FM MPX
ELECTRICAL VOLUME
IC302
D314
ATT
5
SOFT STEP
FADER
24
6
4
7
9
SCL
SDA
(Page 22)
• SIGNAL PATH
: FM
: AM (MW/LW)
: AUDIO
•
R-ch is omitted due to same as L-ch.
ACOUT L
ACIN L
D11
D908
13
2
CN2 (2/7)
AU-L
AU-R
FROM
CONNECTION
BOX
(ANTENNA IN)
TU +8.5V
TU +5V
50
QUALITY
56
NS-MASK
BAND-PASS
FILTER
IC54
Q51
NOISE DET
DISCHARGE
SWITCH
BU +5V
BUFFER
Q50
75
DAVN
RDS DECODER
IC50
INTERFACE
REGISTER
IIC BUS
SLAVE
TRANSCEIVER
OSCILLATOR
& CLOCK
X1
4.332MHz
4
8
5
OSCI
OSCO
SDA
SCL
DAVN
57 kHz
BAND-PASS
FILTER
CLOCKED
COMPARATOR
RDS/RDBS
DEMODULATOR
& DECODER
SIGNAL
QUALITY
DECODER
16
18
19
MPX
CIN
4
5
SCOUT
SDA
SCL
SDA (I2CBUS)
12
9
SDA
SCL
9 10
53
S-METER
10
TROM-SDA
11
TROM-SCL
A
(Page 24)
RESET
18
17
CN2 (1/7)
SDA
SCL
TO
CONNECTION
BOX
SCL
SDA
ADSO
CONTROL SWITCH
IC9
ADSO1
ADSO2
ADSO1
ADSO1 35
ADSO2 36
ADSO2
X0
92
X1
93
D909-2
X452
3.58MHz
X0A
74
X1A
73
X701
32.768kHz
RC-IN1
72
RC-IN0
48
KEYIN2
49
KEYIN1
47
KEY ACK
79
AD-ON
80
J901
(REMOTE IN)
KEY ACTIVE
SWITCH
Q912
BU
+5V
D316
D909-1
SW108
OPEN/
CLOSE
SW101 – 105, 107,
SW750, 751
SW106, 108
KEYIN0
46
LSW965 – 967
OPNCLS
61
MASTER CONTROLLER
IC703 (1/4)
Summary of Contents for XA-V7W
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