Panasonic WV-CU850 Service Manual ▷ View online
– 7 –
OVERALL BLOCK DIAGRAM
16
10
15
16
A1
A0
1
2
3
6
7
8
9
10
11
14
15
16
7
8
3
4
2
1
6
5
+5V
+5V
+5V
+5V
+12V
2
3
1
1 VIN
2
VO
4
VADJ
1 VIN
2
VO
4
VADJ
+12V
+12V
+12V
T1
Z36
IC18
IC10
BZ1
1:1
1:2
PRIVATE
IC
PRIVATE
IC
GCLK1/INPUT
OE2/INPUT/GCLK2
OE2/INPUT/GCLK2
GCLR/INPUT
37
40
40
39
OE1/INPUT
38
IO0/TDI
1
IO5/TMS
7
IO20/TCK
26
IO25/TDO
32
MACROCELLS
17 TO 32
LAB B
6TO16
6TO16
I/O CONTR
OL
BLOCK
6OUTPUT ENABLES
6
6TO16
36
16
PIA
1/6
IC21
2
3/6
IC21
6
5/6
IC21
10
1/6
IC20
2
KSCAN0
22
25
27
30
28
31
33
1
5
11
1
IO17
IO19
IO21
IO23
IO22
IO24
IO26
2/6
IC21
4
3
4/6
IC21
8
9
6/6
IC21
12
13
KSCAN1
KSCAN2
KSCAN3
KSCAN4
KSCAN5
KSCAN6
6TO16
36
16
MACROCELLS
49 TO 64
LAB D
6TO16
6TO16
I/O CONTR
OL
BLOCK
MACROCELLS
1 TO 16
LAB A
6TO16
6TO16
I/O CONTR
OL
BLOCK
6OUTPUT ENABLES
6
6TO16
36
16
6TO16
36
16
MACROCELLS
33 TO 48
LAB C
6TO16
6TO16
I/O CONTR
OL
BLOCK
I/O BUS
IO3
5
IO7
10
IO1
2
IO2
3
IO4
6
IO10
IO12
IO14
IO12
IO14
13
15
19
15
19
IO6
8
21
IO16
GCLK1/INPUT
OE2/INPUT/GCLK2
OE2/INPUT/GCLK2
GCLR/INPUT
MACROCELLS
17 TO 32
LAB B
6TO16
6TO16
I/O CONTR
OL
BLOCK
6OUTPUT ENABLES
6
6TO16
36
16
PIA
6TO16
36
16
MACROCELLS
49 TO 64
LAB D
6TO16
6TO16
I/O CONTR
OL
BLOCK
MACROCELLS
1 TO 16
LAB A
6TO16
6TO16
I/O CONTR
OL
BLOCK
6OUTPUT ENABLES
6
6TO16
36
16
6TO16
36
16
MACROCELLS
33 TO 48
LAB C
6TO16
6TO16
I/O CONTR
OL
BLOCK
I/O BUS
OE1/INPUT
87
90
90
89
88
6TO16
36
16
MACROCELLS
81 TO 96
LAB F
6TO16
6TO16
I/O CONTR
OL
BLOCK
6
MACROCELLS
65 TO 80
LAB E
6TO16
6TO16
I/O CONTR
OL
BLOCK
6
6TO16
36
6TO16
36
16
MACROCELLS
113 TO 128
LAB H
6TO16
6TO16
I/O CONTR
OL
BLOCK
6
MACROCELLS
97 TO 112
LAB G
6TO16
6TO16
I/O CONTR
OL
BLOCK
6
6TO16
36
16
IO7
10
IO9
13
IO10
14
IO13
17
LEDRST
SPTXD
LEDBSY
LHALT
SPCLK
CLK20M
LRST
IO41
63
IO42
64
IO43
65
IO44
IO45
IO45
67
IO46
68
69
69
IO80
70
IO47
71
IO74
72
IO49
75
I0
I1
I2
I3
I4
I5
I6
I7
I1
I2
I3
I4
I5
I6
I7
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
IC22
1
2
2
I0
I1
I1
O0
O1
O1
IC23
18
LEDS0
17
16
15
14
13
12
11
16
15
14
13
12
11
18
17
17
I0
I1
I2
I3
I4
I5
I6
I7
I1
I2
I3
I4
I5
I6
I7
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
IC24
18 LEDD0
17
16
15
14
13
12
11
17
16
15
14
13
12
11
81
84
85
92
93
96
97
98
84
85
92
93
96
97
98
IO53
I0
I1
I2
I3
I4
I5
I6
I7
I1
I2
I3
I4
I5
I6
I7
O0
O1
O2
O3
O4
O5
O6
O7
O1
O2
O3
O4
O5
O6
O7
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
18
17
16
15
14
13
12
11
17
16
15
14
13
12
11
24
27
28
49
53
7
22
55
27
28
49
53
7
22
55
IO68
IO54
IO69
IO55
IO70
IO56
IO71
IO57
IO73
IO58
IO77
IO59
IO78
IO60
IO79
IC25
D161-166
D151-159
SW101-146
YA1
ENA
A1
YA2
YA3
YA4
YB1
A2
A3
A4
ENB
B1
B2
YB2
B3
YB3
B4
YB4
1
2
4
6
8
19
11
13
15
17
18
IC26
16
14
12
9
7
5
3
LD0
LD1
LD2
LD3
LD4
LD5
LD6
LD7
KDATA0
KDATA1
KDATA2
KDATA3
KDATA4
KDATA5
KDATA6
KDATA7
14
IO11
18
IO13
20
IO15
34
IO27
42
IO29
44
IO31
LA1
ADCS
ADRD
ADRDY
LA2
LA3
LA1-3
IO30
43
KEYRD
VR201
PAN
TILT
32
LCDCLK
IO22
CKA
Q3A
IC13
5
Q4A
CKB
Q4B
IO12
8
16
1
6
6
13
CLK20M
M7KTCK
J4
1
3
M7KTDO
M7KTMS
5
M7KTDI
9
M7KTDIO
4
IO3/TDI
M7KTMS
15
IO11/TMS
M7KTCK
62
IO40/TCK
M7KTDO
73
IO48/TDO
DISPCK
33
IO23
M7KTDI
M7KTMS
M7KTCK
M7KTDIO
M7KTMS
M7KTCK
M7KTDIO
LOE
IOCS
IOCS
LRST
CLK20M
LDTK
LWEL
LWEH
LWEL
LWEH
DISPDS
DISPCS
DISPCS
KEYAEN
KEYA0
KEYA1
KEYA2
KEYA1
KEYA2
FWE
3/6
IC20
56
89
4/6
IC20
8
9
10
(3/4)
IC8
VSB
IC17
RST
8
6
SW3
3 RX+
1 TX+
2 TX-
6 RX-
RX+
TX+
TX-
RX-
ADDRESS DECODER
MEMORY ARRAY
DATA REGISTER
MODE DECODE LOGIC
CLOCK GENERATOR
OUTPUT BUFFER
DI
CS
SK
DO
6
5
3
4
(19.6608MHz)
OUT
X1
54
50
53
15
23
24
23
24
SPDIO
SPCS
SPSK
CLK20M
LRST
LHALT
LRST
LHALT
56 LEDRST
55 LEDBSY
39 SPCLK
38 SPTXD
20
IRQ7
2 TX(B)
3 TX(A)
4 RX(B)
5 RX(A)
1
2
2
3
4
5
5
6
IC8(2/4)
(1/4)
IC8
1
3
3
2
SW2
9
ROUT1
7
DIN1
ROUT2
DIN2
10
8
DOUT1
RIN1 12
14
13
DOUT2
RIN2 11
RE
2
ROUT
DIN
DE
5
4
R+
R-
R-
11
12
10
D-
D+ 9
3
IC29
CF1
1
3
2
4
5
7
6
8
4
5
2
7
3
6
CF2
1
8
IC27
67
37
66
36
65
64
TXD1
RXD1
RTS1
CTS1
RXD2
TXD2
7 RS1
3 SD1
2 RD1
8 CS1
MODE SELECT LOGIC CONTROLLER/
COMPATIBILITY/LOOPBACK/LINK TEST
WATCH-DOG
TIMER
PULSE
SHAPER
LOOPBACK
CONTROL
AND
FILTER
DO
COLLISION/
POLARITY
DETECT/
CORRECT
RX
SLICER
TX
AMP
RC
RC
TPOP
TPON
TPIP
TPIN
MD0
MD1
MD1
MANCHESTER
ENCODER
SQUELCH/
LINK
MANCHESTER
DECODER
COLLISION
LOGIC
DETECT
LEDR
PDN
LEDT/
LEDL
FDE
LEDC/
DSQE
LBK
XTAL
OSC
LI
TCLK
TCLK
CLKI
CLKO
TEN
TXD
TXD
CD
RCLK
RXD
RXD
25
26
26
21
24
27
28
RX+
TX+
TX-
RX-
D5
D4
D3
D2
10
11
12
13
5
20
X2
(20MHz)
78
ETCLK
77
ETENA
72
ETX
71
ERENA
76
ERCLK
70
ERX
18
7
7
2
3
6
8
8
14
16
17
17
1
2
2
8
SW4
141
140
139
138
140
139
138
KEYAEN
KEYA0
KEYA1
KEYA2
KEYA1
KEYA2
PB8
PB9
PB9
PB10
PB11
PB11
RX
RCLK
RENA
TX
TENA
TCLK
TXD2/PA1
RXD2/PA0
CTS1
RTS1
RXD1
TXD1
IPL2/IRQ7
HALT
RESET
EXTAL
TCLK3/PA11
RAS1/BRG3/PA12
RCLK3/PA10
RXD3/PA8
TXD3/PA9
CD3/SPCLK
RTS3/SPTXD
144
TOUT2/PB6
DIPSW0
7
142
DIPSW1
WDOG/PB7
134
IOCS
CS2
132
FROMCS
CS1
131
PROMCS
CS0/IOUT2
49
LOE
OE/DONE/PA15
48
LWEH
WEH/DACK/PA14
LWEL
47
WEL/DREQ/PA13
LDTK
31
DTACK
LWRITE
12
R/W
126
LA1
A1
LA2
A2
LA3
A3
LA4
A4
LA5
A5
LA6
A6
LA7
A7
LA8
A8
LA9
A9
LA10
A10
LA11
A11
LA12
A12
LA13
A13
LA14
A14
LA15
A15
LA16
A16
LA17
A17
LA18
A18
LA19
A19
LA20
A20
125
124
122
121
120
119
118
117
116
115
113
112
111
110
108
107
106
105
103
124
122
121
120
119
118
117
116
115
113
112
111
110
108
107
106
105
103
LD0
79
D0
LD1
D1
LD2
D2
LD3
D3
LD4
D4
LD5
D5
LD6
D6
LD7
D7
LD8
D8
LD9
D9
LD10
D10
LD11
D11
LD12
D12
LD13
D13
LD14
D14
LD15
D15
80
81
82
84
85
86
87
89
90
91
92
94
95
96
97
81
82
84
85
86
87
89
90
91
92
94
95
96
97
51
RAS
RAS0/BRG2/PA7
7
UCAS
CAS0/PB0/ACK7
6
LCAS
CAS1/PB1/ACK8
5
WE
DRAMW/PB2/ACK1
LA1-19
LD0-7
13-15,
17-21
D0-2,
D3-7
CE
22
PROMCS
24
LOE
OE
12-5,27,26,
23,25,4,
28,29,3,
23,25,4,
28,29,3,
13-15,
17-21
A0-7,8,9,
A10,11,12,
A13,14,15,
A16,17,18,
A10,11,12,
A13,14,15,
A16,17,18,
D0-2,
D3-7
CE
22
PROMCS
24
LOE
OE
2,30,31
LA1-20
29,31,33,35,
38,40,42,44,
30,32,34,36,
39,41,43,45
38,40,42,44,
30,32,34,36,
39,41,43,45
LD0-15
25-18,
8-1,48
D0-3,
D4-7,
D8-11,
D12-15
D4-7,
D8-11,
D12-15
A0-7,
A8-15,16
WE
11
FWE
28
LOE
CE
2-5,
7-10,
33-36,
38-41
7-10,
33-36,
38-41
D0-3,
D4-7,
D8-11,
D12-15
D4-7,
D8-11,
D12-15
17-20,
23-28
A0-3,
A4-9
12
LRST
OE
26
FROMCS
RESET
WE
LCAS
UCAS
RAS
13
WE
31
LCAS
30
UCAS
14
RAS
OE
29
LOE
(x8)
DATA
CONT
CLOCK
GEN.
(x6)
D0-2,
D3-7
D3-7
WE
CS
OE
27
20
22
A0,1,
A8-11
A8-11
COLUMN DECODER
I/O CKT
(x8)
RO
W
DECODER
A2-7,
A12-14
CLOCK
GEN.
PRECHARGE
CKT
CORE CELL ARRA
Y
512 R
O
WS 64x8 COLUMNS
3-6,51
56-58
VA3-0,14,
VA9-7
8-3,
2,26,1
2,26,1
1,2,
52-55
52-55
VA5,4,
VA13-10
VA13-10
10,9,
25,24,
25,24,
42-44,
45-49
45-49
VD7-5,
VD4-0
VD4-0
11-13,
15-19
15-19
21,23
LWRITE
DISPCS
DISPCK
DISPDS
LRST
14
19
17
13
10
WD
CS
OCS1
RD
RST
YD
FLM
40
LP
LP
37
XSCL
CP
35
WF
M
38
XD3
D0
33
32
31
30
32
31
30
DISPOFF
39
YDIS
XD2
XD1
XD0
XD1
XD0
8
VCE
7
VR/W
22-29
A0
D0-7
20
LA1
LD0-7
2.5A
15 FLM
14 LP
13 CP
12 M
7 D0
14 LP
13 CP
12 M
7 D0
3 DISP OFF
6 D1
5 D2
4 D3
5 D2
4 D3
2 ANODE
1 CATHODE
8 VEE
9 VSS
11 VADJ
10 VCC
-12V
+5V
VIN
-12VO
IC9
8
1
VIN
VOUT1
IC31
1
9
VOUT2
8
+5V
LD0-7
LD0
6
DB0
LD1
7
DB1
LD2
8
DB2
LD3
9
DB3
LD4
17
DB4
LD5
18
DB5
LD6
19
DB6
LD7
20
DB7
4-BIT
FLASH
ADC
(4LSB)
4-BIT
FLASH
ADC
(4MSB)
4-BIT
DAC
RDY
RD
CS
TIMING AND CONTROL
CIRCUITRY
ADRD
ADCS
ADRD
Y
THREE
STATE
DRIVERS
+VREF
16
-VREF
+VREF
+VREF
4-CH
MUX
MUX
AIN1
4
AIN2
AIN3
AIN4
AIN3
AIN4
3
2
1
2
1
ADDRESS
LATCH
DECODE
LA1,2
21
22
13
14
14
REFERENCE
VOLTAGE
COMPARATOR
VOLTAGE
COMPARATOR
IC15
CLSN
75
ECLSN
9
COL
LA1-17
LA9-20
D1
D2
D3
D2
D3
DISPOFF
D3
D2
D1
D0
M
CP
LP
FLM
11
INT
7
1
1
D167
+12V
LEDS1
LEDS2
LEDS3
LEDS4
LEDS5
LEDS6
LEDS7
LEDS2
LEDS3
LEDS4
LEDS5
LEDS6
LEDS7
LEDS8
LEDS9
LEDS9
LEDD1
LEDD2
LEDD3
LEDD4
LEDD5
LEDD6
LEDD7
LEDD2
LEDD3
LEDD4
LEDD5
LEDD6
LEDD7
LEDD8
LEDD9
LEDD10
LEDD11
LEDD12
LEDD13
LEDD14
LEDD15
LEDD9
LEDD10
LEDD11
LEDD12
LEDD13
LEDD14
LEDD15
9
12-5,27,26,
23,25,4,
28,29,3,
2,30,31
23,25,4,
28,29,3,
2,30,31
A0-7,8,9,
A10,11,12,
A13,14,15,
A16,17,18,
A10,11,12,
A13,14,15,
A16,17,18,
-
+
OUT
GND
IN
1
R1
R2
1.25V
2
25
µ
A
Typical
4
RC
A0/TOUT/PB4
2
-
ETHERNET
RS-232C
DATA
BRIGHT
LED
LED
INDICATOR
(x6)
LED
DISPLAY
(x9)
DISPLAY
(x9)
KEY
SWITCH
(x46)
SWITCH
(x46)
OPERATE
LCD
CONTRAST
CONTRAST
JOYSTICK
CONTROLLER
CONTROLLER
BRIGHT
LCD
DC12V IN
POWER
CN1 IC SOCKET
CN2 IC SOCKET
BOARD
JOYSTICK BOARD
PANEL
MAIN BOARD
RS-485
DRIVER/RECEIVER
RS-232C
DRIVER/RECEIVER
CN6
RS-232C PORT
RS-232C PORT
IC30 ETHERNET DRIVER
ETHERNET
CLOCK
CLOCK
CN7
DATA PORT
DATA PORT
IC14
PLD FOR KEY CIRCUIT
PLD FOR LED CIRCUIT
IC19
COUNTER
SYSTEM RESET
ETHERNET
PULSE
TRANSFORMER
PULSE
TRANSFORMER
CN8
ETHERNET
PORT
ETHERNET
PORT
IC7 EEPROM(1K-BIT)
CLOCK
GENERATOR
GENERATOR
ADDRESS B
U
S
D
ATA
B
U
S
MPU(16-BIT)
IC6
BUZZER
LED SEGMENT
VR3
LED
BRIGHTNESS
CONTROL
VOLTAGE VARIABLE
REGULATOR FOR LED
LED DATA
BUS BUFFER
BUS BUFFER
DRIVER
KEY DATA DRIVER
-12V DC-DC
CONVERTER
VR2
LCD
CONTRAST
CONTROL
+5V DC-DC
CONVERTER
IC16
A/D CONVERTER
(4-CH 8-BIT)
VOLTAGE DETECTOR
FOR POWER RESET
VR1
LCD
BRIGHTNESS
CONTROL
LCD DISPLAY
[INFORMATION]
VOLTAGE VARIABLE
REGULATOR FOR LCD
IC11 LCD CONTROL DRIVER
POWER
SW1
SWITCH
JK1
DC12V
INPUT
JACK
IC32
IC4
FLASH
ROM
(8M-BIT)
IC5
DRAM
(16M-BIT)
IC12 STATIC RAM(32Kx8-BIT)
IC2
CONTROL
ROM(EVEN)
CONTROL
ROM(EVEN)
IC1
CONTROL
ROM(ODD)
CONTROL
ROM(ODD)
– 9 –
CONDUCTOR VIEW OF MAIN BOARD AND JOYSTICK BOARD
S
MAIN BOARD
(COMPONENT SIDE)
(PATTERN SIDE)
CN10
TO
P
ANEL BO
ARD
.
.
.
CN102
CN3
TO
LCD ASS'Y . . .CN1
LCD ASS'Y . . .CN1
CN9
TO
P
ANEL BO
ARD
.
.
.
CN101
CN11
TO
P
ANEL BO
ARD
.
.
.
CN103
CN5
TO
JO
YSTICK BO
YSTICK BO
ARD
.
.
.
CN201
A
B
C
D
E
F
1
2
3
4
5
6
(IC1)
(IC2)
<Index>
MAIN BOARD
(IC1)
E1
(IC2)
E1
IC4
E1
IC5
D1
IC6
D2
IC7
C2
IC8
B1
IC9
D2
IC10
D3
IC11
D2
IC12
D3
IC13
C2
IC14
C2
IC15
B2
IC16
A2
IC17
B1
IC18
A2
IC19
B1
IC20
B1
IC21
C1
IC22
B2
IC23
A2
IC24
B2
IC25
B2
IC26
D1
IC27
B3
IC29
B3
IC30
C2
IC31
E2
IC32
F2
D1
F3
D2
C2
D3
C2
D4
C2
D5
C2
JOYSTICK BOARD
(PATTERN SIDE)
(COMPONENT SIDE)
CN201
TO
MAIN BO
ARD
.
.
.
CN5
1
2
A
B
C
– 10 –
CONDUCTOR VIEW OF PANEL BOARD
PANEL BOARD
(COMPONENT SIDE)
(PATTERN SIDE)
CN101
TO
MAIN BO
ARD
. . . C
N
9
CN102
TO
MAIN BO
ARD
.
.
.
CN10
TO
MAIN BO
ARD
.
.
.
CN11
CN103
A
B
C
D
E
F
1
2
3
4
5
6
7
<Index>
PANEL BOARD
D101
B5
D102
B5
D103
C5
D104
C5
D105
D5
D106
D5
D107
D5
D108
E5
D109
E5
D110
E5
D111
C6
D112
C6
D113
D6
D114
D6
D115
D6
D116
E6
D117
E6
D118
E6
D119
C6
D120
C6
D121
D6
D122
D6
D123
D6
D124
E6
D125
E6
D126
E6
D127
C6
D128
C6
D129
D6
D130
D6
D131
D6
D132
E6
D133
E6
D134
E6
D135
B6
D136
B6
D137
B7
D138
D7
D139
B6
D140
B6
D141
B7
D142
C7
D143
D7
D144
D7
D145
E7
D146
E7
D151
E3
D152
E3
D153
E3
D154
E3
D155
C3
D156
B3
D157
B3
D158
B3
D159
B3
D161
A3
D162
B3
D163
E3
D164
E3
D165
E3
D166
A3
D167
A3
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