Panasonic KX-TG9120FXS Service Manual page 75

(1)
(2)
(3)
Sp-phone RX
Beep
1.6V DC supply to Mic
R37 330 R41 2.2k
(4)
R38 C23
(5)
4.7k
10n
(6)
(7)
(8)
+4.0V
R47 1
IC6
SP_TEST2
1 8
CD VOUT2
1u
C30
2 7
C29 1u
+VREF GND
C28 100n
3 6
+VIN V+
4 5
-VIN VOUT1
SP_TEST1
R44 10 R45 27k
R64 47k
C26
100n
C80
C27
470p
NC
50
1
2
3
4
5
C33 CN4
10u
C74
1n
TX-AF
R63 10k
TP20 TP21
R39 33
1
R40 33 2
MIC
REV_TEST2
REV_TEST1
RX-AF
(Handset)
+3.0V
READ#
G1
*OE
DB9
G2
DQ9
DB11 G3
DQ11
G4
VCC
DB13 G5
DQ13
DB15
G6
DQ15 IC2
H1
VSS1
DB1
H2
DQ1
DB3
H3
DQ3
DB4
H4
DQ4
DB6
H5
DQ6
H6
VSS2
E1
VCC2
DB12
E2
D12
E3
NC3
A17
E4
NC4
DB4
E5
D4
E6
VSS2
IC3
DB14
F1
D14
DB13
F2
D13
A15
F3
A14
A16
F4
A15
DB5
F5
D5
DB6
F6
D6
KX-TGA910 SCHEMATIC DIAGRAM (Handset)
75
KX-TG9120FXS/KX-TGA910FXS
A16
D6
A15
A12
D5
A11
A20
D4
A19
A21
D3
A20
A6
D2
A5
A2
D1
A1
A15
C6
A14
A11
C5
A10
C4
A21
A19
C3
A18
A7
C2
A6
A3
C1
A2
+3.0V
R26
100k
DB0
B6
D0
SRAM_CS#
B5
*CE
A5
B4
A4
A4
B3
A3
SRAM_UB#
B2
*UB
DB8
B1
D8
A6
NC1
A3
A5
A2
A2
A4
A1
A1
A3
A0
READ#
A2
*OE
SRAM_LB#
A1
*LB
+3.0V
CN1
1
RA1
CN1
2
LCD_CS#
0
CN1
3
CN1
4
DB15
4 5
CN1
5
DB14 RA2
3 6
CN1
6
DB13 0
2 7
CN1
7
DB12
1 8
CN1 8
DB11
4 5
CN1 9
DB10
3 6 RA3
CN1 10
DB9
2 7 0
CN1 11
DB8
1 8
CN1 12
DB7
4 5
CN1 13
DB6 RA4 3 6
CN1 14
DB5 0 2 7
CN1
15
DB4 1 8
CN1
16
DB3
4 5
CN1
17
DB2 RA5
3 6
CN1
18
DB1 0
2 7
CN1
19
DB0
1 8
CN1
20
READ#
4 5
CN1
21
WRITE#
3 6
CN1
22
A20 R133 NC
2 7
D/C
CN1 23
LCD_RESET# 1 8
CN1 24
R79
CN1 25
R134
0
CN1 26
0 CN1 27
CN1 28
CN1 29
R133 / R134
CN1
30
with USB: 0 / NC
without USB: NC / 0
LCD_BL_CTRL
+4.0V
R59
LED_A
47
LED_K
R58 3
1
1k 2
Q6
NC: No Components