17
17
SPP-904
QUAD COIL
SCAN
CONTROL
1st
MIXER
2nd
MIXER
LOCAL OSC
BUFFER
LOCAL
OSC
PHASE
DETECTOR
LOCK
DETECTOR
B.P.F.
FT301
RF AMP
Q301
TX AMP
Q306, 307
TX B+
SWITCH
Q302
IF AMP
Q1
TX
VCO
RX VCO
Q312
VCO
(RX SYSTEM)
PREAMP
Q2
AF AMP
Q4
HYBRID
AMP
Q3
MIX
OUT
ANT1
(ANTENNA)
FT1
10.555MHz
MIX
IN
LIM
IN
MIX
OUT
16
5
LIMITER
AMP
SQUELCH
TRIGGER
WITH
HYSTERESIS
AF
AMP
VCA
SUM
AMP
MUTE
L.P.F.
L.P.F.
LIMITER
MUTE
VCA
SUM
AMP
PRE
AMP
DATA
SHAPE
DRIVE
FILTER
AMP
DE-
MODULATOR
EXP
IN
LPF1
IN
DISCRI
VOLTAGE
L3
TX
FREQUENCY
CT1
TX
POWER
RT301
SQ
SENSITIVITY
RT1
MODULATION
SENSITIVITY
RT3
TEL
OUT LEVEL
RT2
AF
OUT
B+ (+3V)
FIL
IN
SQ IN
FIL
OUT
9
LPF2
IN
LPF2
OUT
6
10
11
3
TEL
OUT
10
FSK
OUT
19
PRE
IN
24
CHARGE DETECT
Q6
CHARGE CONTROL
Q8
12
8
PD2
PROGRAM-
MABLE
DIVIDER
LATCH
SI
CPS
PLL DATA
PLL CLK
PLL EN
X1
3.579545MHz
17
15
16
40
X1
6
X0
5
41
42
20
18
DATA IN 38
D6
CHARGE
SYSTEM CONTROLLER
IC5
2nd MIXER, LIMITER AMP, DET,
AF AMP, SQUELCH CONTROL
IC3
1st MIXER, VCO, PLL SYNTHESIZER
IC302
EXPANDER, COMPRESSOR, LIMITER
IC1
BATTERY
VOLTAGE DETECT
IC6
TX MUTE
B+ SWITCH
(FOR TX SYSTEM)
Q12
+3V
REGULATOR
Q11
RESET SIGNAL
GENERATOR
Q9
CHARGE
TERMINAL
37
RX MUTE 36
DTMF
1
DTMF 34
LED CHG1
LED CHG2
B+ (+3V)
32
31
TX B
PULSE
TONE
RESET
2
46
CHG IN 35
+
–
RL1
HOOK ON/OFF
RELAY DRIVE
Q10
RINGER DETECT
IC4
TALK 13
21
05
• SIGNAL PATH
: RX
: TX
: BELL
+6V
REGULATOR
Q7
CHG OUT 25
BATT OFF
BELL IN
18
PROGRAM-
MABLE
DIVIDER
PROGRAM-
MABLE
DIVIDER
1/32, 1/33
PRESCALER
L.P.F.
D7
LINE
S2
DIAL MODE
S1
HANDSET
LOCATOR
LED INUSE1
LED INUSE2
30
29
B+ (+6V)
TX B+ (+3V)
B+ (+3V)
EXPANDER
SQ IN
RST
XIN
XOUT
TX B+
X2
10.1MHz
D303
D302
OSC
OSC
RXE
RXB
MIX
IN
DA
TA
OUT
DA
TA
EN
EXP MUTE
CONT
CMP MUTE
CONT
47 48
16
17
39
1
COMP
OUT
20
9
10
18
13
1
2
20
21
13
FT2
455kHz
3
24
PHASE
DETECTOR
VCO
(TX SYSTEM)
2 DOUBLER
TX AMP
PD1
LATCH
1/2
LATCH
1/16, 1/17
PRESCALER
OSC &
1/2 DIVIDER
PULSE
COUNTER
SHIFT
REGISTER &
LATCH
L.P.F.
TXE
TXB
7
TX
OUT
2
5
4
14
LOCK
COMPRESSOR
LINE
J1
T1
LINE
TRANSFORMER
+
J2
!
DC IN 9V
PAGE
22 TONE/PULSE
24 FLASH 100
23 FLASH 270
1
2
3
S3
FLASH
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – BASE UNIT Section –
Содержание SPP-904
Страница 1: ...MICROFILM SERVICE MANUAL CORDLESS TELEPHONE E Model SPECIFICATIONS SPP 904 ...
Страница 3: ...3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Страница 4: ...4 ...
Страница 16: ...16 ...