Aiwa HV-FX8000 Service Manual page 9

SCHEMATIC DIAGRAM-5 (TUNER/IF SECTION)
QQ
3 7 63 1515 0
VIDEO
DETECTOR
SAW SIF
FILTER FILTER
IF FM
AMP DETECTOR
MIXER VHF
IC OSC
TE
L 13942296513
UHF
MIXER
VHF UHF
RF AMP RF AMP
RF CARRIER
OSC
THROUGH SW
ANT
IN
VHF/UHF/CATV
www
.
http://www.xiaoyu163.com
To
REG9V
POWER
5.1VD
SECTION
36V
1B 4B
GND
To
Hi-Fi
MOD AUDIO
SECTION
AUDIO(TU)
1E , 2E
TU701
TADC-H002F
TUNER
AFT
AGC
IF
BLOCK
PLL
UHF
OSC
ENABLE
TUNER
RF AGC
BLOCK
CONTROL
VIDEO FM
MODULATOR MODULATOR
OFF
4.5MHz
TANK
MODULATOR
BLOCK
OUT
TO
TV
SW701
CH3
CH4
x ao
y
i
http://www.xiaoyu163.com
8
A MAIN(TUNER/IF SECTION)C.B
1B
2B
3B
4B
1E
2E
20
19
C704
0.1/50
18
NC
17
16
IF
NC 15
R701
3.9K
14
TU30V
C701 ZD701
4.7/50 MTZ33B
13
NC
12
REG5V
Q Q C709
NC 11 3 220/6.3 6 7 1 3
10
9
8
NC 7
6
R702
1K
5
4
REG5V 3
R710
C703
C702
1.5K
2
0.01
220/6.3
1
R711
18K
:PB VIDEO SIGNAL
:REC VIDEO SIGNAL
:PB AUDIO SIGNAL
:REC AUDIO SIGNAL
N O T E : V O L T A G E P B O R R E C M O D E
*
u163
.
13
2 9 9 4 2 8
C710
0.1
R703
470
C705
470/6.3
2 . 8
L701
2 . 1
Q701
27u
KTA1267
0
1 5 0 5 8 2 9 9 4
R706
470
R707
470
R708
33K
C708
3.3/50
m
co
9 9
1F VIDEO(TU)
2F VIDEO(LINE)
To
A/V
SECTION
1F , 2F
1G VIDEO
2G VIDEO(ACSS)
3G AFT
2 8 9 9
4G IIC DATA
5G IIC CLOCK
6G VCR "H"
To
SYSCON/
SERVO
SECTION
1G 6G