Rf Unit (Handset) - Panasonic KX-TC1205RUB Service Manual

27.2. RF Unit (Handset)

ANT1
ANTENNA
PAD3
TP
27P L1
C0603 0.68UH
L7.5
C5
104
TP
C0603
C11
NA
C0603 T3
1440
IFT\7
DPX1
DPX0830 2
DUP\25P
TP
R10
82K
Q1
R0603
SOT-23\EBC
C0603 C0603
C22
39P R11
5K6
R0603
TP
TX
T5
1856
IFT\7
4
2
5
C54
10P
C3 C0603
39P
C0603 SOT-23\EBC
CF1 10.7MHZ
FILTER\1
1 3
R106
150
C12
R0603
2U2/50V
EC5/2.5
IST
+
RX
MIX
OUT
C15
10U/16V
6
EC5/2.5
39
39
E-REC 2ND
C17 VREF
4 MIX
102
40
IN
40
IST Mix IN
2.1V
C0603
41
41
VCC2
10.7MHz
+
C88 C18
42
42
104 2.2U/50V VCO CONT
EC5/2.5 L6
1.8uH
43
43
L7.5 C24 VCO1
C27
C26 22P
104
103 C0603 44
C0603 44
C0603 VCO2
R15 45
R14
45
0 C29 C-RECT
15K
R0603 2.2U/50V
R0603
C31 EC5/2.5 46
46
103 RX CP
C0603
47
47
TX CP
0V
PLL GND
48
48
VCC3 LO1
TP
TX IN
R24
4K7
R0603
C40
103
C44
C42
C0603
+
+
C43 47U/10V 105
EC5/2.5
2U2/50V C0603
EC5/2.5
X1
10.245MHZ
XTAL\10A
R38
0
R0603
C50
103 R40
C0603 33
R43 R97 R0603
100K 100K
R0603 R0603
R47
2K2 C55
R0603 103 C56
C0603 1P
Q5 C0603
C60
27P
C0603
C2 C1
473 47UF/10V
C0603 EC5/2.5
TP
C85
R1
+ 105
330
C0603
R0603 R93
10K
R0603
T1
1431 R2
IFT\7 15K
CF2
R0603
455E
C6
FILTER\2
102
C7
C0603 104 C76 C77
C0603 470P 470P
1 5 C0603 C0603
C8 C13 R95 39K
473 27P
C0603 C0603
R0603
N-REC 2ND VCC1 IF DEC GND2 IF QUAD DET. F OUT FIL-IN
DATA I/P
MIX IN OUT OUT
OUT
DATA O/P
3.9V 0V
RSSI
450kHz
BAT. ALM
IC1
RO2
RO1
REC IN
EXP OUT
3.9V
REF
OUT
COMP AF REF
FL-IN C-NF
OUT OUT IN
LO2 S-OUT CLK DATA STB FL-OUT
VR8
C36 C0603
18P VC1 C39
20P 150P
C35
+
C0603 680P R26 R25
R108 R109 R110 C0603 10K 56K
C0603 R0603 R0603
R28
C41 1K 1K 1K
22P R0603 R0603 R0603 C37
10U/16V
R0603
EC5/2.5
R35 47K C47
R0603 682
C0603
R34
220K
R0603 R101 0
TP
C49
223
C0603
C52
+
C53
C51 103
223
10U/16V R44 C0603
EC5/2.5 39K
C0603
R0603 T6 1960
C57 15P
R49
47K
Q6
C59 C0603 IFT\7
R0603
SOT-23\EBC 27P
C0603
C62
DV1
R52 56P
680 C0603 VCD2
R0603
KX-TC1205RUB/W/S/F SCHEMATIC DIAGRAM (Handset (RF Unit))
C75
103
C0603
R5 R3
10K 6K8
R0603 R0603
R94 R6 10K
330K
R0603
R0603
C9 C10 R7 C14
103 NA NA 103
C0603 C0603 R0603 C0603
C16
473
24
24
C0603
23
23
22
22
TP
C20 REC1
21
21
NA SD153
C23 C0603 TP SIP2
102
20
20
C0603
19 TP
19
C28 R13 R17
R16 C30
6800P 12K 5K1
10K 104
18 C0603 R0603 R0603
R0603 C0603
18
17
17
Q2
C32 104
R18
C0603 C78 SOT-23\ECB
10K
16 103 R20
R0603
16
C0603 1K8 C33
R0603 104
15 R21 C0603
15
C34 82K
Q3
100P R0603
R22
SOT-23\ECB R103
AF-IN C0603 R23
4K7
1M
47K
R0603
R0603
R0603
C38
100P C79
C0603 103 TP
C0603
C45
C80
R29 R30
683
103
R36
C0603 TP
2K
120K 6K8
0
C0603 R0603
R0603
R0603
C87 C0603 R37
N/A R102 C48 1K
+
C0603 333 C46 47U/10V R0603
NA EC5/2.5
C0603
R0603
R96
0
R0603
R98
R41 4M7 R42
68K R0603 22K
R0603 R0603
R45
100K
R0603
R46
430K
R50
R51 R0603 R48
2K7 22K
8K2
R0603 R0603
R0603
C61
104
C0603
RX
TX
VBAT
R8
220K
R0603
TP
C21 R9
223 82K
C0603 R0603
R12
220K
R0603
R19
VOL1
VOL2
4K7
VB
R0603
RX DATA
RSSI
R91
IC2-22
RF-STB
0 R0603
RF-DATA
RF-CLK
VTX
3.1V TXDATA
GND
(In Talk Mode)
MC1
MIC
Q4
SOT-23\ECB
R99
4K7
R0603
R39
220K
R0603
TP
R107
C58
2K2
103
R0603
C0603