SW30
HELP
SW24
1
SW25
4
SW26
7
SW27
*
SW11
0
SW10
8
SW7
RECEIVE MODE
SW8
2
SW21
(
)
SW13
MONITOR
SW6
(
)
SW19
[3]
#
SW18
9
SW17
6
SW16
3
SW31
FAX/START
SW20
MUTE
SW12
REDIAL/PAUSE
SW5
NO USE
NC
SW14
(
)
SW22
(
)
PS1
1
2
3
4
R4
10K
+5V
C1
Z0.1u
C2
100u
SW4
NC
NO USE
SW3
NO USE
NC
R19
10K
R17
10K
R15
10K
R13
10K
R14
470
R16
470
+5V
PS2
1
2
3
4
SW2
NO USE
NC
1
4
2
6
3
COM
4
7
5
5
6
TNH
7
VEE
8
VSS
9
C
10
B
11
A
12
3
13
0
14
1
15
2
16
VDD
+5V
10K
R10
+5V
R7
10K
Q1
Q2
+5V
R12 56K
R11
270
D1
+5V
+5V
C6
Z0.22u
C7
NC
C8
NC
SW28
FLASH
SW29
MENU
C9
NC
C5
NC
Q4
NC
R6
NC
C4
NC
R9
NC
R8
NC
C3
NC
R29
NC
R27
NC
+5V
CN2
1
MICIN
2
AG
3
NC
4
DG
5
KRXD
6
KTXD
7
KLATCH
8
KSCLK
R5
10K
CN3
1
VSS
2
VDD
3
V0
4
RS
5
R/W
6
E
7
DB0
8
DB1
9
DB2
10 DB3
+5V
D2
LED1
R31
NC
Q5
NC
R32
NC
CN1
[0]
1
KSTART
2
KIN3
3
KIN2
4
KIN1
5
KIN0
6
E
7
RS
8
OPESEL
9
+5V
R33
4
.7
SW9
5
SW23
STOP
R28
10K
R30
750
SW1
NO USE
NC
SW15
COPY
R2 10K
Q3
R3
10K
R1
NC
J102
NC
J101
NC
R20
470
R18
470
R34
NC
Q6NC
R35
NC
PAPER
SENSOR1
TO:DIGITAL BOARD
PAPER
SENSOR2
LCD MODULE
TO MIC
RED
BLACK
NOT USE
NOT USE
OPERATION BOARD SCHEMATIC DIAGRAM
KX-FT71LA-B
5V
0V
0V/3.3V/5V
5V
0V
5V
0V
5V
0V
Summary of Contents for KX-FT71LA-B
Page 10: ...1 11 2 CCIT NO 2 TEST CHART 10 ...
Page 11: ...1 12 LOCATION OF CONTROLS 1 12 1 OVERVIEW 11 ...
Page 22: ...22 ...
Page 32: ...4 Close the cover securely by pushing down on both sides 32 ...
Page 33: ...5 Tear off the excess paper by pulling it towards you 33 ...
Page 41: ...CROSS REFERENCE SENSOR SECTION DISASSEMBLY INSTRUCTIONS 2 3 4 3 MULTIPLE FEED 41 ...
Page 42: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 4 SKEW 42 ...
Page 43: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 2 3 4 5 IMAGE IS DISTORTED WHEN PRINTING 43 ...
Page 45: ...CROSS REFERENCE DIGITAL BOARD SECTION TEST FUNCTIONS 2 3 4 7 SKEWED RECEIVING IMAGE 45 ...
Page 47: ...CROSS REFERENCE DISASSEMBLY INSTRUCTIONS 47 ...
Page 59: ...Error code table 59 ...
Page 62: ...62 ...
Page 63: ...CROSS REFERENCE TEST FUNCTIONS 63 ...
Page 64: ...CROSS REFERENCE TEST FUNCTIONS 64 ...
Page 65: ...CROSS REFERENCE TEST FUNCTIONS 65 ...
Page 66: ...CROSS REFERENCE TEST FUNCTIONS 66 ...
Page 67: ...67 ...
Page 68: ...68 ...
Page 69: ...69 ...
Page 75: ...Normal Wave Patterns 75 ...
Page 78: ...CROSS REFERENCE NG EXAMPLE CHECK THE STATUS OF THE DIGITAL BOARD 78 ...
Page 79: ...CROSS REFERENCE CHECK THE STATUS OF THE DIGITAL BOARD 2 3 6 2 NG EXAMPLE 79 ...
Page 84: ...84 ...
Page 85: ...85 ...
Page 86: ...86 ...
Page 92: ...2 4 3 USER MODE The list below is an example of the SYSTEM SETUP LIST the unit prints out 92 ...
Page 93: ...Note The above values are the default values 2 4 4 SERVICE FUNCTION TABLE 93 ...
Page 104: ...3 2 HOW TO REMOVE THE OPERATION BLOCK 104 ...
Page 105: ...3 3 HOW TO REMOVE THE OPERATION BOARD AND LCD 105 ...
Page 106: ...3 4 HOW TO REMOVE THE BOTTOM FRAME AND ANALOG BOARD 106 ...
Page 107: ...3 5 HOW TO REMOVE THE DIGITAL POWER SUPPLY BOARD AND AC INLET 107 ...
Page 108: ...3 6 HOW TO REMOVE THE MOTOR BLOCK AND SEPARATION ROLLER 108 ...
Page 109: ...3 7 HOW TO REMOVE THE MOTOR AND GEARS OF MOTOR BLOCK 109 ...
Page 110: ...3 8 HOW TO REMOVE THE IMAGE SENSOR CIS 110 ...
Page 111: ...3 9 HOW TO REMOVE THE DOCUMENT FEED ROLLER 111 ...
Page 112: ...3 10 HOW TO REMOVE THE THERMAL HEAD 112 ...
Page 113: ...3 11 INSTALLATION POSITION OF THE LEAD WIRES 113 ...
Page 117: ...4 4 BRIDGE MODIFICATION PROCEDURE 5 CIRCUIT OPERATIONS 5 1 CONNECTION DIAGRAM 117 ...
Page 122: ...38 VSS DG Ground 122 ...
Page 140: ...5 4 6 3 2 SCANNING CROSS REFERENCE SENSOR SECTION 5 4 6 3 3 PRINTING 140 ...
Page 141: ...Note See 6 5 SENSERS AND SWITCHES 5 4 6 3 4 COPYING 141 ...
Page 163: ...8 CABINET MECHANICAL AND ELECTRICAL PARTS LOCATION 8 1 OPERATION PANEL SECTION 163 ...
Page 164: ...164 ...
Page 165: ...8 2 UPPER CABINET SECTION 165 ...
Page 166: ...8 3 LOWER CABINET P C B SECTION CROSS REFFERENCE MOTOR SECTION 8 4 MOTOR SECTION 166 ...
Page 167: ...8 5 ACTUAL SIZE OF SCREWS 167 ...
Page 168: ...9 ACCESSORIES AND PACKING MATERIALS 10 REPLACEMENT PARTS LIST 168 ...
Page 179: ...L3 PQ4R10XJ000 0 S 179 ...