GND
+3.3V
GND
R9~R0
C5~C0
D7-0
A6-0
WEN
REN
CSN
INTON
INTIN
PDX0
PDX1
PDR
Function Key 46
KEYIN6-1
KEYOUT8-7
+3.3V
GND
DATA
COMUNICATION
TEL
JACK
JK2
XDP
CN
CN13
IC3 CPU
H8/3627S
ROM : 60kB
RAM : 2kB
OSX,OSR,OSYNC,OCK2M,RESETOUT
RESET
JK1(HS JACK)
MIC
CN6
SP
CN7
TO
GND
TO
USB
HOOK
RESET
SCLK,TxD,RxD,TxEN,RxRDY,BUSY,OPDET
PBX I/F
OPTION I/F
LED's driver
CPU I/F
DSP CORE
DTMF.Gen.
TONE.Gen.
TONE Det.
CODEC
MIC
SP
LED
CO1~24(2color)
Function LED 8
LED's driver(Tr)
Q3~7, Q11~13
LED
Function LED 1
D133
Function Key
12
X1
16.384MHz
+3.3V
+3.3V
TO
LCD
CN1
HOOK
SW
SO,SCL,A0,RES,CS1
HF
COMP
EEPROM
128bit
IC9
LIGHT
TO
LIGHT
CN2
SP
MIC
JK4(HEADSET JACK)
POWER
PCM
I/F
Q1
8.196MHz
D6
T1
OSX,OSR,OSYNC,OCK2M,RESETOUT
SCLK,TxD,RxD,TxEN,RxRDY,BUSY,OPDET
DPTS I/F
COMP
DATA
COMUNICATION
Q8,Q9
Q2
Q15
LED
Message
D130-132
CN4-CN5
ECHO
CHANCELLOR
DDX0
DDX1
DDR
CLK
DATA
CS
-1.2V
IC8,C11,12
D1,13
Charge Pump
GAIN
CONTROLLER
DXDP
XDP
JACK
JK3
Q16
CONNECTOR
CN3
CONNECTOR
CN8-CN9
CONNECTOR
CN11-CN12
KEYIN8-1
KEYOUT8-1
OPTION
CN10
OPTION
KX-T7633 / KX-T7633-B : BLOCK DIAGRAM
MAIN P. C. Board
Summary of Contents for KX-T7633
Page 4: ...4 LOCATION OF CONTROLS 4 ...
Page 9: ...Note Refer to 1 5 of WAVEFORM for waveform 8 2 LCD DOES NOT OPERATE 9 ...
Page 10: ...Note Refer to 6 of WAVEFORM for waveform 8 3 HANDSET DOES NOT WORK Receive Send 10 ...
Page 11: ...Note Refer to 7 8 of WAVEFORM for waveform 8 4 HEADSET DOES NOT WORK Receive Send Note 11 ...
Page 28: ...13 CABINET AND ELECTRICAL PARTS LOCATION 28 ...
