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23
CDX-V7800X
AM ANT
R-OUT
FM ANT
2
1
16
TUNER UNIT
TU601
R-CH
L-CH
VIDEO OUT
MPEG
SECTION
5
TONE
FL
RL
23
22
21
,0
36
28
37
38
27
18 17 16
12
11
5
3
9
7
4
22
STBY
MUTE
RR+
RR-
FR+
FR-
TEL MUTE
BATT
AMP REM
ACC
BATT
R-CH
R-CH
ACC
ANT REM
13
RL–
10
6
5
16
7
RL+
2
3
11
4
12
FL–
9
1
FL+
PJ401-5
PJ401-3
PJ401-1
CNP901
IN2
IN1
POWER AMP
IC902
47
49
48
SYSTEM CONTROL
IC801(1/2)
VOL CE
VOL DATA
VOL CLK
8
MUTE
35 PDOUT
31 VCOH FM
32 VCOL AM
28 AM IFC
26 S-METER
46 SD
29 FM IFC
4
LCL/DX
5
VT
51 FM ON
BATT
52 AM ON
68 MSC
BATT
BATT
LOW PASS
FILTER
Q603,604
6
VCO
11
MONO
19
S-METER
20
SD
21
IFC/SEEK
8
FM +B
9
TU +B
FM POWER
CONTROL
Q602,607
10
AM +B
AM POWER
CONTROL
Q601,604
REG
Q905
REG
Q901
CD MECHA
POWER CONTROL
Q906-908
POWER
CONTROL
Q909,923,924
Signal path
: FM
: AM
: CD VIDEO
: CD AUDIO
04
CE
DI
CL
Q406
Q405
CD POWER
CONTROL
Q902-904
AM DET 12
L-OUT 18
22
ST IND
64 ST IN
39 LCL/DX
69 MSI
70 MSO
71 MSRQ
72 MCS
6 SYSRST
2 SELF SW
40
BEEP
17
POWER ON
19
AMP MUTE
16
TEL MUTE
41
ACC IN
78
BU IN
58
60
ANT ON
AMP ON
1 AMP ON
5 BU+B
2
AMP+B
4
VCC
ACC CHECK
Q913,914
AM POWER
CONTROL
Q915,916
REG
IC904
BU CHECK
Q911,912,922
ACC
BATT
MUTE DRIVE
Q401,402
BATT
BATT
BATT
BU CHECK
POWER SUPPLY
IC901
MPEG
SECTION
4
CD
SECTION
1
MPEG
SECTION
9
MPEG
SECTION
3
CD
SECTION
8
R-CH
Q407
16
AUX
IN
A MUTE
VIDEO OUT
FRONT
REAR
AUDIO OUT
-4
-2
CNJ601
(ANTENNA)
MSC
MSI
MSO
MSRQ
MCS
SYSRST
SELF SW
VIDEO 6V
BU5V
A3.3V
ELECTRONIC VOLUME
IC401
3-2. BLOCK DIAGRAM — TUNER SECTION —
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299