Main Board (4) - Panasonic UF-5500 Service Manual

UF-5500 / 4500

14.2.4. Main Board (4)

1
A
1:1D;1:4A
RING
1:4A
DP
B
1:4B;1E
AFECLK
1:4B
ASPCLK
1:4B
ABITCLK
1:4B
ARXD
1:4A
ATXD
+3.3VA1
DG
1:4A;1E
AFERST
1:4B
AINT
C
I
C
3
0
0
D
1:1E;3:4A
DAOUT
1:4A
BTXD
1:4A
BRXD
1:4B
BSPCLK
1:4B;1B
AFECLK
E
1:4B
BBITCLK
1:4A;1C
AFERST
F
MONITOR_RX:
TONE
FAX-TX,RX :
MONITOR_RX:
2
+3.3VA1
IC100
1 16
MCLK *OFHK
+3.3VA1
2 *FSYNC
15
*RGDT/FSD/M1
3
14
SCLK M0
4
13
VA
VD
5
12
SDO GND
6 11
SDI AOUT/*INT
7
10
C1A
FC/*RGDT
8 9
*RESET C2A
C102
K0.1u
DG
DG
+5VD
+5VA +3.3V
L200
VREF
L230
0(1608)
( )
NC +3.3V
L229
( )
NC
DG DG2
DG
IC200
1
SPKRR SPKRL
2
MBIAS LINEO
3
HDST GND
4
SDI
5
SDO
6
*FSYNC LINEI
7
MCLK
8
SCLK *RESET
+3.3VA2
DG DG
3
C106 R104
50V/1u
1.07k(1/2W)
1 QE
2 DCT
3 RX
!
C104 4 IB
33p/250V
R101
5 C1B
R136
6 C2B
56(1608) !
7 VREG
C105
R102 33p/250V
8 RNG1
R137
56(1608)
C107
R103
K0.1u
! F1M
C121
10p/250V
C122
( )
NC
DG
+3.3VA1
L227
0(1608)
+3.3VA2
L202
0(1608)
C206
( )
NC
+5VA
+3.3VA2
DG
16
R214
15
0
14
13
VA
DG DG
12
VD
11
10
MIC
9
C203 K0.022u R210 8.2k R253
8.2k
R212 22k
C205 K0.1u
R211 NC R259
C204 NC
DG
( ) ( ) (
NC
Q200
1:3E
CNGMUTE
DG
DG
Q203
1:1D
HSSPMUTE2
NC
DG
UF-5500 SCHEMATIC DIAGRAM (MAIN BOARD No.4) (1/2)
260
4
IC101
R111
16
DCT2
15 150
R108
IGND
3.65k(1/2W)
14
DCT3
13
QB
12
QE2
11
SC
10
VREG2
9
RNG2
C108 R105
K0.1u 0
R109
( )
NC
R106
R112
15M
5.1M(2125)
C110 120p
R110
( )
NC
R107 R113
15M
5.1M(2125)
C109 120p
+3.3V
R219
( )
NC
Q201
1:1D
( )
HSSPMUTE
NC C216
( )
NC
DG
C217
( )
NC
DG
L212
( )
NC
L208
( )
L209
NC
C213
IC202
K1000p
1 AOUT 8
V+
R217
7
2 A-IN
DG
BOUT
180k 3 A+IN 6
B-IN
C247 L210 L211
4 V- 5
B+IN
K0.022u
DG
C250
C214
) ( )
( )
NC
NC
5
1/2
4
-1
FAX-RX
R114
(1)
F536(3216)
(2)
Q102
C
B
E
(3)
(4)
(5)
C111
FAX-TX
K2700p
(6)
(7)
(8)
(9)
R224 NC
(10)
( )
IC203
(11)
1 CD 8
VO2
(12)
2 FC2 7
GND
3 FC1 6 (13)
VCC
4 VIN 5
(14)
VO1
R223
( )
NC
C221
( )
NC
(15)
C222
( )
NC
R220
L213
0
(16)
( )
C218
NC
( )
L214
NC
(17)
( )
R221
NC
( )
NC
C219
VREF
( )
NC
R222 L215
180k
C220
K1000p