KX-TVM50BX, KX-TVM502X, KX-TVM524X, KX-TVM594X, KX-TVM296X (serv.man7) - Panasonic PBX Service Manual Supplement (repair manual). Page 4

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4
KX-TVM50BX
1.3.
SCHEMATIC DIAGRAM
1.3.1.
MAIN No.1(CONTROL BLOCK)
Change from the Original Service Manual Section 16.1.
D
C
B
A
45
6
3
2
1
2/
4
1/
4
4/
4
3/
4
(1
)
(2
)
(3
)
(4
)
(5
)
(6
)
(7
)
(8
)
(9
)
(10)
(11)
(12)
(13)
(14)
KX-TVM50BX  MAIN NO.1 (1/4)
(15)
(16)
(a
)
(b
)
(c
)
(d
)
(e
)
(g
)
(i
)
(k
)
(n
)
(q
)
(s
)
(u
)
(w
)
(y
)
(A
)
(C
)
(E
)
(G
)
(J
)
(L
)
(N
)
(Q
)
(S
)
(U
)
(W
)
(Y
)
(aa)
(f
)
(h
)
(j
)
(m
)
(p
)
(r
)
(t
)
(v
)
(x
)
(z
)
(B
)
(D
)
(F
)
(H
)
(K
)
(M
)
(P
)
(R
)
(T
)
(V
)
(X
)
(Z
)
(a
b)
(a
c)
(a
d)
(a
e)
(a
f)
(a
g)
+3.3V
R676
LA[9]
LA[16]
LD[7]
LD[11]
LD[13]
LA[18]
LD[14]
LD[10]
LA[11]
LA[7]
LA[19]
LD[12]
LA[2]
LA[1]
LA[4]
LA[6]
LD[15]
LA[17]
LD[9]
LA[15]
LD[2]
LA[5]
LA[8]
LA[12]
LD[0]
LA[10]
LD[1]
LA[13]
LD[6]
LD[5]
LD[8]
LA[14]
LA[3]
LD[4]
LD[3]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
D[8]
D[9]
D[10]
D[11]
D[12]
D[13]
D[14]
D[15]
n_LANINT
n_RD
RD_nWR
n_WE0
n_WE1
n_CE1B
n_RASU
CKE
n_CASU
U/A
n_CE2A
n_CS2
n_CE1A
n_CE2B
n_VBINT
n_RASL
n_WAIT
n_CS4
n_DSP_INT_CPU
n_CS3
n_USBINT
n_CASL
HDDINT
n_CS0
nShut_DN
n_RASL
n_RASU
n_CASL
n_CASU
RD_nWR
n_WE0
CKE
n_RD
n_CS0
n_CS2
n_CS3
n_CS4
n_CE1A
n_CE1B
n_WE1
n_CE2A
n_CE2B
n_RESET
n_CS0G
n_RDG
n_WE0G
n_USB_DRQ1
n_USB_DRQ0
HDDINT
n_VBINT
n_LANINT
n_USBINT
n_DSP_INT_CPU
n_WAIT
LD[14]
LD[11]
LD[13]
LD[9]
LD[12]
LD[10]
LD[8]
A[15]
A[13]
A[14]
A[20]
A[18]
A[17]
LA[20]
LA[16]
LA[18]
LA[21]
A[22]
A[16]
LA[22]
A[21]
LA[19]
A[19]
LA[17]
A[2]
LA[4]
A[14]
A[11]
A[12]
A[6]
LA[9]
LA[7]
LA[1]
A[10]
A[13]
LA[11]
LA[14]
LA[2]
LA[12]
LA[0]
LA[3]
LA[13]
LA[5]
A[3]
A[15]
LA[6]
LA[8]
A[8]
LA[10]
LA[15]
A[5]
A[1]
A[4]
A[7]
A[0]
A[9]
BELL1
n_AUDSYNC/HOOK6
USB_DACK0
n_AUDATA0/CPC6
n_AUDATA1/BELL5
n_USB_DRQ0
n_USB_CS
HOOK4
n_AUDATA2/BELL6
BELL2
CPC2
n_WE1G
RD_nWRG
n_DSPRST[3]
n_CE1B
n_DSPRST[1]
n_DSPRST[2]
n_USB_DRQ1
n_RDG
n_LAN_CS
HDDINT
USB_DACK1
n_LANINT
n_AUDCK/CPC5
CPC1
n_USBINT
n_CE2B
HOOK1
HOOK2
n_ECO_INT
ASEBRKAK
n_AUDATA3/HOOK5
nBAT_ALM
CKIO1
CKIO1
CKIO2
CKIO2
RD_nWRG
n_LB_gate
LA
[2
0]
LD[15]
HOOK3
CPC3
CPC4
BELL4
BELL3
n_HDB_gate
nDC_ALM
nBAT_ALM
n_USB_RESET
n_MODEMRST
n_LAN_RESET
APT_DOUT
APT_DIN
APT_DCLR
n_RESET
n_LAN_WAIT
n_HDD_WAIT
U/A
n_DSPCS[1]
n_DSPCS[2]
n_DSPCS[3]
n_USB_DRQ0
n_USB_DRQ1
n_FMC_RST
n_FMC_RST
D[8]
D[15]
D[10]
D[9]
D[11]
D[12]
D[14]
D[13]
A[5]
A[1]
A[9]
A[2]
A[11]
A[3]
A[8]
A[12]
A[4]
A[10]
A[7]
A[6]
D[5]
D[15]
RD_nWR
D[14]
D[3]
D[12]
D[11]
n_RASL
n_CS3
D[10]
n_CASL
CKIO1
CKE
D[4]
D[2]
n_WE0
D[9]
D[0]
D[13]
D[1]
D[6]
D[7]
D[8]
n_WE1
n_ADPT_INT
n_ADPT_INT
RST_SW
RA
12
1
33
1
2
3
4
5
6
7
8
RA
12
0
33
1
2
3
4
5
6
7
8
RA
12
2
33
1
2
3
4
5
6
7
8
L106
22
C130
22P
C131
22P
X1
01
16
.3
84
MH
z
+3.3V
RA
12
3
33
1
2
3
4
5
6
7
8
C142
470P
C143
470P
C141
22P
TP86
C140
22P
+3.3V
C1
38
0.
01
u
C1
39
1.
0u
L1
20
+3.3V
LD[0-15]
TP120
FIL107
NC
1
2
3
TP43
TP61
TP44
TP117
TP45
TP26
LA[0-15]
+3.3V
+3.3V
C1
17
0.
01
u
C124
0.1u
C125
0.1u
C120
0.1u
C126
1.0u
C119
0.1u
C121
0.1u
C127
2.2u
C123
0.1u
IC108
16MByte SDRAM
1
VDD1
2
DQ0
3
VDDQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VDDQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
VDD14
15
LDQM
16
#WE
17
#CAS
18
#RAS
19
#CS
20
A13(BA0)
21
A12(BA1)
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD27
28
VSS28
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC36
37
CKE
38
CLK
39
UDQM
40
NC40
41
VSS41
42
DQ8
43
VDDQ43
44
DQ9
45
DQ10
46
VSSQ46
47
DQ11
48
DQ12
49
VDDQ49
50
DQ13
51
DQ14
52
VSSQ52
53
DQ15
54
VSS54
TP15
C122
0.1u
TP109
TP101
TP115
TP105
TP113
TP107
TP102
TP103
TP106
TP112
TP104
TP108
TP116
TP111
TP110
TP114
RA
11
6
10
k
4
3
2
8
1
7
6
5
RA
11
3
10
k
1
2
3
5
4
6
7
8
RA
11
5
10
k
1
2
3
5
4
6
7
8
RA
11
4
10
k
4
3
2
8
1
7
6
5
TP27
TP28
TP29
TP30
TP31
TP32
TP33
TP34
TP35
TP36
TP37
TP38
TP39
TP40
TP41
TP42
TP80
TP78
TP51
TP52
TP22
RA
11
7
10
k
4
3
2
8
1
7
6
5
RA
11
8
10
k
4
3
2
8
1
7
6
5
RA
11
9
10
k
4
3
2
8
1
7
6
5
+3.3V
L108
L109
L110
L111
L112
L113
L114
L115
L116
L117
L119
L118
C110
0.01u
C1
05
1.
0u
FIL112
1
2
3
IC110
1#
1
G
2
1A1
32
Y
4
4
1A2
52
Y
3
6
1A3
72
Y
2
8
1A4
92
Y
1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
L1
03
TP12
C1
02
2.
2u
C112
0.01u
TP4
+3.3V
C1
08
0.
01
u
TP6
C114
0.01u
IC101
1#
1
G
2
1A1
32
Y
4
4
1A2
52
Y
3
6
1A3
72
Y
2
8
1A4
92
Y
1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
C1
06
1.
0u
+3.3V
C1
03
2.
2u
FIL101
1
2
3
IC102
1#
1
G
2
1A1
32
Y
4
4
1A2
52
Y
3
6
1A3
72
Y
2
8
1A4
92
Y
1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
TP2
TP7
C113
0.01u
C1
09
0.
01
u
L1
01
n_LAN_CS
n_DSPRST[3]
HOOK4
n_DSPRST[1]
n_AUDATA1/BELL5
ASEBRKAK
n_LANINT
n_CE1B
n_AUDATA0/CPC6
CPC1
n_USB_DRQ0
HOOK1
n_USB_CS
USB_DACK1
USB_DACK0
n_DSPRST[2]
BELL1
CPC2
n_RDG
n_AUDSYNC/HOOK6
HOOK2
n_USBINT
n_AUDATA2/BELL6
HDDINT
n_AUDCK/CPC5
BELL2
n_AUDATA3/HOOK5
RD_nWRG
HOOK3
n_USB_DRQ1
n_WE1G
n_CE2B
n_ECO_INT
TP76
TP75
TP66
TP67
TP68
TP69
TP64
TP63
TP62
TP65
TP83
TP82
TP81
TP84
TP85
IC119
1
2
4
3
5
TP5
TP13
TP56
TP25
RA
21
3
22
1
2
3
4
5
6
7
8
RA
21
4
22
1
2
3
4
5
6
7
8
+3.3V
C1
35
0.
01
u
CPC4
CPC3
BELL3
BELL4
n_HDB_gate
nBAT_ALM
nDC_ALM
n_USB_RESET
n_LAN_RESET
n_MODEMRST
APT_DOUT
APT_DIN
APT_DCLR
n_RESET
n_LAN_WAIT
U/A
n_HDD_WAIT
n_DSPCS[3]
n_DSPCS[2]
n_DSPCS[1]
TP119
+3.3V
+3.3V
n_FMC_RST
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
DG
RA
22
8
33
1
2
3
4
5
6
7
8
RA
22
9
33
1
2
3
4
5
6
7
8
TP59
C596
R742
NC
R743
NC
+3.3V
X1
02

2
3
4
RA
23
8
22
4
3
2
1
8
7
6
5
RA
23
9
22
1
2
3
4
5
6
7
8
RA
24
0
22
1
2
3
4
5
6
7
8
RA
24
1
22
4
3
2
1
8
7
6
5
RA
24
2
22
1
2
3
4
5
6
7
8
RA
24
3
22
4
3
2
1
8
7
6
5
DG
DG
IC107
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
NC9
10
NC10
11
WE
12
RESET
13
NC13
14
NC14
15
RY/BY
16
A18
17
A17
18
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
A0
26
CE
27
Vss27
28
OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
Vcc
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15/A_1
46
Vss46
47
BYTE
48
A16
IC105
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
10
GND
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
/2G
20
VCC
R161
33
R123
0
R715
33
R725
22
R145
0
R133
39
R709
33
R165
0
R158
33
R141
R711
33
R720
33
R151
0
R712
33
R729
33
R1
03
0
R166
0
R706
22
R121
NC
R1
04
0
R698
22
R713
33
R157
33
R719
33
R722
33
R164
0
R700
22
R730
33
R1
05
0
R721
33
R162
0
R152
33
R168
0
R159
0
R723
33
R146
0
R732
33
R727
33
R701
22
R703
22
R111
22
R154
33
R109
NC
R153
33
R169
0
R160
0
R726
33
R107
NC
220
R118
10k
R148
0
R707
22
R705
22
R112
NC
R137
NC
R150
0
R163
100
R716
33
R717
33
R147
0
R699
22
R114
NC
R155
33
R731
33
R697
22
R170
0
R677
NC
R173
0
R149
0
R714
33
R140
NC
R710
33
R156
33
R110
NC
R704
22
R171
0
R126
NC
R724
33
R678
NC
R728
33
R144
0
R108
NC
R702
22
R167
0
R113
22
R708
22
R718
33
FIL106
NC
1
2
3
FIL130 1
2
3
FIL131
1
2
3
IC168
1
XIN
2
VSS
3
S1
4
S0
5
SSCLK
6
FRSEL
7
VDD
8
XOUT
R188
CK
IO
2
A
d
d
re
ss B
u
s G
a
te
 C
ir
cu
it
Da
ta
 B
u
Ga
te
 C
ir
cu
it
Fl
a
sh
 R
o
m
 
(8
Mb
yt
e
)
S-
D
R
A
M
(16M
B
y
te
)
65.
536
MH
z
Da
ta
 B
u
s
Dev
ice S
e
le
ct
 S
ig
n
a
ls
16.
384M
H
z
16.
384M
H
z
32K
H
z
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