Main Board (Cpu Section) - Panasonic WR-DA7 Service Manual

MAIN BOARD
CN36
1 #DFAIL IC7 Q3, Q4
2 +14.5V +14.5V
3 –14.5V –14.5V
RESET IC
4 V5A V5A
5 RANA GANA
6 GANA
7 V5D
8 V5D
CN101
9 V5D
10 GND BATTERY
11 GND
IC3
12 VINV VINV
13 GINV GINV
14 #FFAIL
RESET IC
X1 IC1
CPU
(20MHz)
74
73 AD0 - AD15
A1 - A21
Q10 Q7
WRH,WRL,RD
75
NMI
89
MTRRDY (IC35 : 2P) WAIT
IRQ3
68
#FSYNC2 IRQ2
67
#OPWDT IRQ1
66
IRQ0
2
IRQ7
112
2TMDSL PB13
105
2TRCBC PB7
104
2TRCBB PB6
103
AUXCBC PB5
102
PB4
AUXCBB
101
LCH2TR PB3
98
CBOUT PB1
97
PB0
CBCK
95
PC7
MTTRDY (IC1 : 69P) PC6
93
PC5
92
AUXC30 PC4
90
2TRCB0 PC3
89
AUXLCK PC2
88
2TRLCK PC1
60
#FSYC1 PA7
SCIMS TXD0
SCISM RXD0
CN35
1 GND
2 CLK10M
3 GND
TIOC31
4 MA1
PLL LOCK
5 MA2
6 MA3 PA0,1
7 MD0 RXD1
8 MD1 TXD1
9 MD2
#MCS6
10 MD3
11 MD4
12 MD5
13 MD6
14 MD7
15 GND
16 #MRD
17 FMWRL
18 #GDBUF
19 #SLDIR #SLDIR
20 GND
21 WCVSYC
22 GND
23 LKVSYC
24 TCRDY
25 GND
26 +13.5V +13.5V
27 #STIRQ
28 VCC
29 VCC
30 #RES #RES
BLOCK DIAGRAM OF MAIN BOARD (CPU SECTION)
BACK UP POWER
IC6
IC9
SRAM
2
(HIGH BYTE)
1
IC4 IC3
3 32 32
SRAM SRAM
(HIGH BYTE) (LOW BYTE)
32 32
#RES
RES
87
AD0
57,58,59
48
CS0
56
IC11
ADDRESS
DECODER
4 15
50
RMCS1
CS2
14
RMCS2
11
#CSLCD
10
#CUVRM
9
#CSMLT HCSMLT
IC12
ADDRESS
DECODER
4
55
CS6 11
#CSMTR
14
#CSCKL
13
#CSSTA #CSSTA
15
#CSPTM
#CSPTM
IC13
ADDRESS
DECODER
4
15
#CSSLT1 #CSSLT1
14
#CSSLT2 #CSSLT2
13
#CSSLT3 #CSSLT3
11
CSSMP
71 (20MHz)
CK
IC53,56,31,10
WR STROBE
& DIRECTION
#MWPCK
#SLDIR
63
PA9
65
64
53,54
109
110
55
IC5
SRAM
IC2
(LOW BYTE)
FLUSH RAM
IC18
(ROM)
IC19 LCD CONTROLLER
91 - 94
DPD0 - 7 VD0 - 3
90
YD
VRAM
DPA0 - 14 88
LP
87
DSCL
10 86
MPUCLK LCDEN
99 9
OSC1 READY
IC55
DIVIDER
IC10
11 10 (20MHz) 3 5 (10MHz)
1/2
CLK5M
11 9 (5MHz)
1/2
IC14
DIVIDER
IC15
IC10
DIVIDER
CLK10M
5 6 (20MHz) 2 14 (10MHz)
1/2
CLK2M CL500K
12 (2MHz) 3 9 (500kHz)
1/10 1/4
CLK2M
(2MHz)
– 24 –
IC21
SERIAL I/O
3
TXDATA
4
20
CLK RXDATA
13
TXCLK
30
RXCLK
IC25
1 2
D16
IC25
X2
3 4
IC25
5 6
D17
IC25
X3
IC23
7 8
16
15
DATA
13,14
LATCH
4
17,18,19
6
5
IC20
IC24
SELECTOR
14 4
4
SLT1WC 3 PLL 1
3
SLT2WC
2
SLT3WC
15
14
13
2TRWC
9,10,11
IC40
SELECTOR
12
2,14
7
CN32
GINV GINV 1
VINV 2
VINV
IC20
VDD 3
BUFFER
GND 4
D3 5
D2 6
D1 7
D0 8
GND 9
DSPOFF 10
CP2 11
CP1 12
IC22
S 13
BUFFER
CN44
6
LBCK 1
MTTXD
11
MTRXD LDATA 2
2
LBC LADD 3
3
LDO LWCK 4
4
LAD CTXD 5
5
LWC CRXD 6
1 +7V 7
8
GND 9
GND 10
Q8
GND 11
GND 12
GND 13
+7V 14
GND 15
CN64
+7V 1
+7V 2
GMTR 3
GMTR 4
MD0 - MD15
MA1 - MA21
#MWRL, #MRD
MS256
IC27
DIVIDER
IC26
SELECTOR
6
5 7 2 13
1/4
NMS64
4,3 IC54
2 4
MS64
2,14
IC28
DIVIDER
IC10,51,52
2 1
1/256 MSFS
PLL
LOCK
DETECT
IC42 IC42
CN38
4 3 2 1
WCK IN
SW2
Q11,12,13,14
CN38
WCK OUT
DRIVER
CN41
HSK5 1
N.C. 2
TXD– 3
IC41
GND 4
RS422 DRIVER
RXD– 5
6
TXD+ 6
7
N.C. 7
5
RXD+ 8
14
CN40
15
GND 1
13
TX– 2
RX+ 3
9
GND 4
IC43 N.C. 5
GND 6
RS422 DRIVER
TX– 7
2
RX– 8
4,5 3
GND 9
1
6
6
5
7
SW3