Read Panasonic KX-FT57E Service Manual online
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KX-FT57E
General Block Diagram
POWER SUPPLY
RECTIFIER SW. TRANS
+24V
NOISE
FILTER
FILTER
SW. MOS
MOS SW
+5V
+5V
+24V
OPERATION PANEL
SENSOR
LED
DOC READ-POSITION
LCD
LCD
LCD
CONTROLLER
G/A
KEY MATRIX
SERIAL I/F
RESET
BATT
RESET
IC9
ROM
RAM
2M
BIT
IC2
IC2
FLASH
MEMORY
IC4
256K
BIT
IC3
IC3
HEAD
ON
IC8
DIGITAL PCB
HEAD POWER
THERMAL
HEAD
SENSOR
CUT-POS
ANT-CURL
LED ARRAY
TO CCD
+24V
+5V
TR
SW
F1,F2,FR,FTG
VID
CCD BLOCK
I/O
HEAD TEMP.
24MHz
PRINTER
CONTROL
FLASH ROM
CONTROL
OSC
CPU
I/F
OP PANEL
I/F
MOTOR I/F
IC7
IC8
RXM
TXM
MOTOR
DRIVER
DRIVER
RX MOTOR
ANTI CURL
TX MOTOR
IC5
MODEM
TONE1
T2/BEL
AC
+24V
+5V
IC1
CPU-ASIC
T7D56
BACK UP VCC
ADDRESS
BUS
DATA BUS
IC6
CODEC
TXA
IN
RIN
A/D
IMAGE
PROCESSING
DC/DC
CONVERTER
CONVERTER
+ -
MODRX
MODSRX
MODTRX
DATA
ADDRESS
HANDSET
MIC
SPEAKER
MIC
DTMF
RECEIVER
IC4
4.19MHz
CROSS POINT SW
ALC
T1
IC10
IC10
G/A
IC5
IC5
I/O PORT
I/O PORT
SPEAKER AMP
IC3
SPMUTE
SPEAKER
COVER
SET SW
SET SW
PAPER
SET SW
SET SW
HOOK
SW
SW
+5V
+5V
+5V
+5V
JAM
DETECT
DETECT
T2
–
+
~
~
D6
RLY1
TEL LINE
E
a
b
S
ANALOG PCB
+5V
+5V
Q3
DC
LOOP
TXD
RXB
T1/T2
RIN
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