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SPP-N1025/N1026
13
13
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – BASE UNIT Section –
• SIGNAL PATH
: TX
: RX
: BELL
OPER 0
TONE
REDIAL/
PAUSE
RESET SIGNAL
GENERATOR
Q5, 6
+
–
CHARGE
TERMINAL
DC IN 9V
–
+
J3
BUFFER
Q1
J7
HOOK ON/OFF
U8
D14
D16
D15
D7
T2
LINE TRANSFORMER
FREQUENCY SHIFT
KEYING DEMODULATOR
U3
X1
3.58MHz
B+
(+5V)
A1
RF UNIT
+
ANT
TX AUDIO
PLL DATA
TX DATA
RX DATA
CAR DET
RX AUDIO
PLL CLK
PLL EN
MIC
MIC101
CHARGE
LED1
EEPROM
U6
CHARGE
CONTROL
Q2, 8
X2
8MHz
23
22
CHARGE
DETECT
Q4
VOICE MAIL
LED4
NEW CALL
LED2
INTERCOM
LED8
SPEAKERPHONE
LED6
LINE
LED7
6
TEL LINE
SWITCH
U13 (3/4)
TEL LINE
SWITCH
U13 (2/4)
OFF
LOW
HIGH
KEY MATRIX
KEY1 – 17,
KEY19 – 22
SW1
RINGER
12
SPEAKER AMP
U14
SP101
VOICE SPEAKERPHONE
U4
13
SPEAKER ON/OFF
SWITCH
U13 (1/4)
D13
D11
D10
D9
7
1
KEY16
KEY17
KEY22
HOLD
ABC 2
GHI 4
PQRS 7
WXYZ 9
JKL 5
TUV 8
MNO 6
DEF 3
KEY13
KEY 14
KEY15
CALL WAITING/
FLASH
KEY21
KEY 8
KEY 7
KEY10
KEY11
KEY12
KEY20
#
KEY 9
KEY5
KEY4
SPEED DIAL
KEY1
KEY6
PGM
KEY2
VOLUME
+
KEY3
–
KEY19
SPEAKERPHONE
INTERCOM
LINE
Содержание SPP-N1025 - Cordless Telephone
Страница 12: ...12 SPP N1025 N1026 MEMO ...