Panasonic KX-FHD332C Service Manual page 232

1/4
+5VD +5VA
CN506
TO POWER UNIT
7 7
6 6
5 5
4 4
DG
3 3
+24V
2 2
1 1
+24V
IC506
1 8
2 7
3 6
4 5
Q501
TO
THERMAL HEAD
CN505
COM(THON) 11
PG
R503 100
THLAT 10
R504 180
STB1 9
GND(PG) 8
PG
+5V 7
TM 6
L522
R505 100
THCLK 5
NC
GND 4
C506 R506 180
STB2 3
R507 100
THDAT 2
COM(THON) 1
+24V
+5VD
R520 1.5K 1/2W
Q503
Q502
(1)
KX-FHD332C : DIGITAL BOARD (1/4)
+5VD
R679
5.6K
+5VD
THDAT
+5VD
THCLK
THLAT
STB1
STB2
or
STB1
STB2
R699 0
R700 0
R701 0
RM0
RM1
RM2
RM3
RXE
L501 100
RXE
(2)
+5VD
IC523
C A
A[0]
20
PS501
A0
E K A[1]
19
A1
A[2]
18
A2
A[3]
17
A3
SENLED1
A[4]
16
A4
Q517
A[5]
15
A5
A[6]
14
A6
PTOP
A[7]
13
A7
THON A[8]
3
A8
A[9]
2
A9
A[10]
31
A10
A[11]
1
A11
A[12]
12
A12
RBA[0]
4
A13
RBA[1]
5
A14
RBA[2]
11
A15
RBA[3]
RBA[4]
RBA[5]
NEWTHLAT
NEWSTB1
NEWTHCLK
NEWSTB2
+5VD
NEWTHDAT
+3.3VD +3.3VD
IC507
1 5
VOUT CE
2
VDD
3 4
GND VDET
(3) (4) (5)
D[0]
21
D0
A[4]
D[1]
22 10
D1
A[5]
11
A[6]
D[2] 12
23
D2
A[7]
13
RBA[0]
D[3] 16
25
D3
RBA[1]
17
RBA[2]
D[4] 18
26
D4
RBA[3]
19
RBA[4]
D[5] 20
27
D5
RBA[5]
9
D[6]
28
D6
6
+3.3VD
D[7]
21
29
D7
7
7
WE
22
8
30
CE
23
32
+3.3VD
OE
8
VDD
24
VSS
9
A18
6
A17
10
A16
NO. 16
+3.3VD
THDAT
THDAT
49
STB2
50 STB2
STB1
51 STB1
MDMTXEN
52 PC7
OF-MREN
53 PC6
HSRXEN
54 PC5
55 MCHG
56 RESET
R742 270 57 GND
58 FLASHCS
CLE
59 PB4/A12
60 PB3/A11
61 PB2/A10
62 PB1/A9
63 PB0/A8
64 A3
(6) (7) (8)(9) (10) (11)
(12)
+5VD
R693
CLE
IC503
2
DA0 D0
3 Q522
DA1 D1
4
DA2 D2
5
DA3 D3
24
DA4 D4
25
DA5 D5
26
DA6 D6
27
DA7 D7
+5VD
DA8
DA9
NC6
14
NC21 VDD-14
1
VDD-1
WE
OE
15
RAS GND-15
28
CAS GND-28
C628 Z0.1u
C543 Z0.1u
CISMEN
32
KOVER
KOVER 31
DRPSEL 30
DRAMCS 29
GND 28
DRB[7]
PA7/DRB7 27
DRB[6]
PA6/DRB6 26
DRB[5]
PA5/DRB5 25
IC520 DRB[4]
PA4/DRB4 24
DRB[3]
PA3/DRB3 23
DRB[2]
+3.3VD
PA2/DRB2 22
DRB[1]
PA1/DRB1 21
DRB[0]
PA0/DRB0 20
GND 19
D3 18
D2 17
(16)
(19)
(15)
(13) (14) (17) (18)
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(m)
(n)
(p)
(q)
(r)
(20)