3-34
PCS-1500/1500P
Fig. 3-20 Infrared signal demodulation Block
PRE AMP
Q801 ~ Q803
B
UFFER
Q804
PRE AMP
Q701 ~ Q703
B
UFFER
Q704
B
UFFER
Q401
B
UFFER
Q421
B
U
FFER
Q110
BPF
TP402 ~
TP403
BPF
TP422 ~
TP423
RF AMP
Q424
RF AMP
Q404
LIMITER
IC101
DEMODULA
TO
R
IC121
LPF(integ
rator)
TP121 ~
TP141
DE_EMPHASIS
IC141(1/2)
VIDEO AMP
IC142
MUTE CONTR
OL
IC141(2/2)
Ref
.160 ~
IPM-92 (Infrared IR Receiver Board)
IPM-93 (Infrared IR Receiver Board)
DE-54 (FM Demodulator Board)
6
6
1
1
3
CN101
CN402
CN403
CN701
CN801
TP401
TP421
TP402
TP422
TP403
TP423
TP404
TP424
TP101
TP102
TP121
TP141
TP142
TP143
3
5
5
3
STEP-UP
IC301
ANALOG_9V
ANALOG_27V
ANALOG_9V
ANALOG_5V
ANALOG_5V
ANALOG_5V
ANALOG_5.9V
Q901
5
7
ANALOG_5V
ANALOG_9V
2
4
2
4
R801
R701
L491
L492
L193
L194
L192
L302
ANALOG_27V
ANALOG_5V
ANALOG_27V
ANALOG_5V
L301
TP301
TP391
TP491
TP191
TP192
TP193
ANALOG_5.9V
Photodiode
D701
Photodiode
D801
3-2. Circuit Description of the Respective Boards
Summary of Contents for PCS-1500
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