Schematic Diagram; Digital Board - Panasonic KX-FP81BX Service Manual

14 SCHEMATIC DIAGRAM

14.1. DIGITAL BOARD

+24V
+5VD +5VA
TO POWER UNIT
CN506
+5V 1
DG 2
PG 3
PG 4 DG DG
DG
+24V 5
+24V 6
+24V 7
+24V
IC506
1 8
S D
2 7
S D
3 6
S D
4 5
+5VD G D
TO THERMAL HEAD
CN505
COM(THON) 11
R503 0
THLAT
THLATCH 10
R504 0 STB1
STB1 9
GND(PG) 8 Q501 THON
+5V 7
R522 22K
TM 6
R505 0 THCLK R523 82K
THCLK 5
C509 J560P
GND 4
R506 0 STB2
STB2 3
THDAT
R507 0 THDAT
THDAT 2 THCLK
COM(THON) 1 THLAT
STB1
STB2
STB3
+24V
+5VD
Q502 R516
Q503
D501 1.5k(1/2w) L501
0
TO MOTOR
IC508
CN502
M[3] 16 1
M3 1
L502
M[2] M[0] 15 2 0
M2 2
L503
M[1] M[1] 14 3 0
M1 3
L504
M[0] M[2]
13 4 0
M0 4
L505
M[3] 12 5 0
COM 5
11 6
10 7
D502
9 8
GND
TX0
TX1
TX2
TX3
TXE
C506
K1000P
C507
K1000P
+5VD
R519 47K
R520
47K
C510
Z0.1u
CN504
TO OPERATION PANEL
+3.3VBAT
IC504
+5V/BAT +3.3V/BAT
+3.3V
A[0] 10 11 D[0]
+5VBAT
A[1] A0 D0 D[1]
9 12
A1 D1
A[2] 8 13 D[2]
A2 D2
A[3] D[3]
7 15
A3 D3
A[4] 6 16 D[4]
A4 D4
A[5] 5 17 D[5]
R598
A[6] A5 D5 D[6]
4 18
A6 D6 D504
A[7] 3 19 D[7]
A7 D7 4.7K
A[8]
25
A8
A[9] 24
A9
A[10] 21 28
A10 VCC
A[11]
23
A11
A[13] 2 Q505
A12
A[14] 26 20
+5VD
A[15] A13 CS
1
A14
22
OE
R529 14 27
SENLEDON GND WE
10K
Q504
+5VD
R524
5.6K
3 1
PS501
4 2
PTOP
+5VD
SW501 R530
FILMEND
1 3
2 4
100
FILM/COVER SW
....
+5VD
....
R535 10K
RESET
RA501 RA502 RA503
+3.3V +5VD
MTE
STB1
STB2
R534
4.7K
MT0
MT1 XRESET
109 DB5
MT2 XORESET
C516 110 5V DB1
MT3 111 VSS DB4
Z0.1u
112 XRESET1 DB2
113 XWDERR DB3
THDAT XWDERR
114 THDAT XRESCS2/OP71
THCLK
115 THCLK XCAS2/IOP44
TEST THON
116 3.3V XCAS1/IOP43
C513
VSS XRAS/IOP42
Z0.1u 117
THLAT
118 THLAT 3.3V
119 STBNP VSS
120 RM0/IOP00 XMDMCS
JOG1
121 RM1/IOP01 XMDMINT
JOG2
122 RM2/IOP02 TEST4
R532 10K
123 RM3/IOP03 24MHz TEST3
124 RXE/IP04 TEST2
MT0
IC501
125 TM0/IOP10 TEST1
C517 126 5V XTEST
Z0.1u 127 VSS 5V
MT1
128 TM1/IOP11 VSS
MT2
129 TM2/IOP12 XIN
MT3 32.768KHz
TM3/IOP13 XOUT
130
MTE
131 TXE/IP14 3.3V
KSTART
132 KSTART ADR13
KLATCH
133 KLATCH ADR14
KSCLK
134 KSCLK ADR15
KTXD
135 KTXD XOPRBE/MUX/OP53
KRXD
136 KRXD XHSTWR/IOP41
137 ADSEL1 XHSTRD/IOP40
138 VSSC XWAIT/IP60
139 VDDC 20KOSC/IOP56
140 VSSA 5V
Z0.1u 141 VDDA VSS
C514
142 VREFB FMEMCLK/IOP24
C515 Z0.1u
VCL FMEMDI/IOP25
143
FMEMDO/IOP26
144 VREFT
MILAT/IOP47
XNMI/XINT
AMON
C519 K0.1u
R536 0
+5V/BAT
X501
+3.3V/BAT
32.768KHz
R537
( )
NC
....
KRXD/KTXD
....
KSCLK
KLATCH
....
KSTART
IC502
A[0] 12 13 D[0]
A0 D0
A[1] 11 14 D[1]
+5VD A1 D1
A[2] 10 15 D[2]
A2 D2 FAX TX Signal
A[3] 9 17 D[3]
A3 D3
A[4] 8 18 D[4]
A4 D4
A[5] D[5]
7 19 FAX RX Signal
A5 D5
A[6] 6 20 D[6]
A6 D6 +5VD
A[7] 5 21 D[7]
A7 D7
A[8] 27 +2.0V
A8
A[9] 26
A9
A[10]
+5VD 23 C549 R558
A10
A[11] 25
A11
A[12] 4 31
A12 A18 K0.1u 18K
A[13] 28 1
A13 VPP
A[14] 29 32 IC510
A14 VCC
A[15] 3
A15
A[16] 2
A16
A[17] 30
A17
R563
22 +2.0V +5VA
CE
24 16
OE GND
A[18]
IC503
A[4] D[0]
10 2
DA0 D0
A[5] 11 3 D[1]
DA1 D1
A[6] 12 4 D[2]
DA2 D2
A[7]
13 5 D[3]
DA3 D3
A[13] 16 24 D[4]
DA4 D4
A[14] 17 25 D[5]
+5VD+5VD +5VD
A[15] DA5 D5
18 26 D[6]
DA6 D6
A[16] 19 27 D[7]
DA7 D7
A[17]
20
DA8
A[18] 9
DA9
6
NC
21 14
NC VDD
1
VDD
7
WE
22
OE
8 15
RAS GND
23 28
CAS GND
D[6]
D[0]
D[7]
D[5] +5VD
72
D[1]
71
D[4]
70
D[2]
69
D[3]
68
67
66
65
64
63 C536
62
Z0.1u
61
60
L508
59
C552
58
XTEST
57
56 R599 120
55
54
C537
53 Z0.1u
52
51
+5VD
50
L509
49
48
47
46
SENLEDON
45
PTOP
44 R553
FILMEND
43
1M
42
EXTHOOK
41 X502
Z0.1u
40 C538 BELL
39 24MHz
LINERLY
38
37
+5VD
+24V
MPOS
+5VD
Q506
R554
CISON
( )
NC
NC
....
SI
CN503
197
C580
J100P
C556 K1000P TO ANALOG
+24V
BOARD
R585
R565 82K
CN501
110K +5VA
+5VA +5VA +24VA 15 +24V
IC509
C571 R579
C592 Z0.1u
2 8 2 8
14 AG
1 1 14 1
VDD K0.1u 47K
3 3 IC511
4 4 -2 13 +5VA
2 13
-2 +12V
12 LINERX
3 12
11 LINETX
220K
4 11 C572 R580 R583 C581 C586 R593
10 HSTX
5 10
HSRXEN K0.1u 33K 15K K0.1u K0.1u 47K
OF-MREN 6 9 Q510
R594
7 8
VSS
SPMUTE
2.2K
C560 Z0.1u ON-MREN
LINERLY
MDMTXEN
BELL
MDMRXEN
EXTHOOK
C575 K0.1u
HOOK
C576 K0.1u R586 3.9K
MPOS
+12V
C561 K1800P
HSTXMUTE
R570 12K
IC511 -1
C579
IC510 -1
R566 6
7 5
K0.1u
1K 5 7
6
R592
+2.0V
+12V 68K
C584
R568 10K K680P
+24V +24VA
Q511
Q509
R581
R569 10K
10K +12V
Q508
C573
R576 R582
3.3K K0.1u 6.8K
+5VD
C566
6.3V,100u
R578 22
C564
Z0.1u
C574 6.3V,220u
C565 K330P
C578 Z0.1u
TP514
+5VD
51 NC 0VA 30
52 IRQ NC 29
53 WRITE NC 28
54 CS NC 27
55READ SYNCIN1 26
A[4]
56 RS4 ECLKIN1 25
A[3]
57 RS3 SWGAINI 24
A[2]
A[1] 58 RS2 0VD2 23
59 RS1 +5VD2 22
A[0]
60 RS0 0VA 21
K0.01u
61 GP13 NC 20
+5VD 62 NC NC 19
63 GP11 RAMPIN 18
270
64 RTS 0VA 17
IC505 RA504
65 EN85 0VD2 16
D[0]
1 8
66 0VD2 D0 15
2 7 D[1]
67 PORI D1 14
3 6 D[2]
68 XTLI D2 13
D[3]
4 5
TP506 69 XTLO D3 12
1 8 D[4]
TP507 70XCLK D4 11
2 7 D[5]
TP508 71YCLK D5 10 D[6]
3 6
72 +5VD1 D6 9
4 5 D[7]
C558 73 DCLK1 D7 8
74 SYNCIN2 0VD2 7 RA505
Z0.1u 75 GP16 0VD2 6 270
C559
76 GP17 GP07 5
77 0VD2 GP06 4
Z0.1u 78 CTS GP05 3
79TXD GP04 2
80 0VD2 GP03 1
TP509
TP510
....
CLK
Q507
NC...Not Used
PG
KX-FP81BX / KX-FP81CX / KX-FP82CX
9 HSRX
8 SPOUT
7 SPMUTE
6 ON-MREN
5 LINERLY
4 BELL
3 EXTHOOK
2 HOOK
1 MPOS