Aiwa HV-FX5700 Service Manual page 20

SCHEMATIC DIAGRAM-2 (POWER/TUNER SECTION) <HV-FX990/GX915>
MAIN(POWER/TUNER SECTION)C.B <990,915>
LFS202014-
04350
:REC VIDEO SIGNAL
:PB VIDEO SIGNAL
:REC AUDIO SIGNAL
:PB AUDIO SIGNAL
VOLTAGE CHART-1 (POWER SECTION)
IC102 IC141
PB 4.0 0.0 PB 3.5 2.0 17.2 3.7
REC 4.0 0.0 REC 3.5 2.0 17.5 3.9
4
5
IC102
IC141
1 1
PB 4.9 3.9
PB 1.1 1.3 0.0 0.0
REC 4.9 4.0 REC 1.1 1.3 0.0 0.0
IC103 TRANSISTOR
Gate Anode Cathode
Emitter Collector
PB REC PB REC PB REC
PB REC PB REC
IC103 2.5 2.5 0.0 0.0 3.9 3.9 Q151 11.9 11.8 14.8 15.0
Q152 9.4 9.3 11.8 11.6
Q153 11.8 11.7 14.8 15.0
Q154 -27.3 -27.9 -27.3 -27.8 -26.6 -27.0
Q155 5.3 5.3 5.2 5.3
Q156 -16.1 -16.5 -16.0 -16.4 -15.4 -15.7
Q157 5.3 5.3 5.2 5.2
Q158 35.6 36.0 35.3 35.7
Q159 5.3 5.3 5.2 5.2
Q160 0.0 0.0 0.0 0.0
Q161 0.0 0.0 0.1 0.0
Q162 5.3 5.3 5.2 5.2
Q164 5.3 5.3 5.3 5.3
Q165 0.0 0.0 10.0 10.0
NOTE:
Voltage are DC-measured with a digital voltmeter during TUNER mode.
6 7
8
4
9
ERA18-02KFRB
2
10
D 11
G
12
S
13
ERC81-004L22
14
1 15
NOTE) Warning
NOTES) Symbol denotes AC ground.
NOTE) Parts that are shaded are critical
NOTE) With respect to risk of fire or
NOTES) Symbol denotes DC chassis ground.
NOTE) electricial shock.
IC BLOCK DIAGRAM-1
IC, KA7552
Base
PB REC
12.5 12.4
10.0 9.9
12.4 12.3
0.0 0.0
0.0 0.0
35.0 35.4
4.5 4.5
5.0 5.0
5.0 5.0
4.5 4.5
4.6 4.6
0.0 0.0
25
KRA18-02KFRG
KTC3205
22uH
KRA103M
22uH
KRA103M
KTA1273
1
3
2
KSR1003
KRA103M
KTA1273
KRC101M
KTC3199-BL
10u/16V
KTA1267-GR
C710
43P
To To
To
SCART
SYSTEM CONTORL/
SCART
SERVO/OSD SECTION
SECTION
SECTION
26
To
SYSTEM
CONTORL/
SERVO/OSD
SECTION
(DRUM)
To
SCART
SECTION
To
10u/16V
AUDIO/
VIDEO
SECTION
KTA1267-GR
To
SYSTEM
CONTORL/
SERVO/OSD
SECTION
ENTREE
ANTENNE
AERIAL
SORTIE
ANTENNE
RF.OUT