Circuit Diagram

FCC ID: PQN44308TX27

Schematics

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FCCID_836871

1 2 3 4 5 6

27.150MHz
ANT
VCC D7*900MM

D D
R3 R7 L2
10K
1.5uH
470 Q3
8550
C14 L3 BT 4*AA

R6 2.2uH
68PF 6V
R2
4.7K
1K Q4 C7 C8
Q1 R9 300PF 10PF SW1 SS-13F30G5
9014 C5 10k
LED1(G)
C380
104 VCC
R8 ON OFF

100
R1 L3
110K R10 CHE
C6
2.2uH 103 10
C C
14

13

12

11

10

9

8

14
C9 390PF C4
U1
L

OSCO

VDD
NC

PC
GND OSCI

SO

U1 TX2C
68PF
TX2C
NC

Y1
TB

SC
R

B

R12
F

C10
27.145MHZ(49S) 102
1 10K
Q2 R20 R22 D2
1

2

3

4

5

6

7

R4 9014 1K 4148
20K Q5 100K
R11 R18 R25
330 100K
K1 K2 K3 D1 15K 8550 R23
3.3V 100K
C1 C2
104 100UF/16V
12 A4
R5 R13 A3 2.495V
100 C3 100K Q6 10 R21 14
103 R19 8 R24
1.8K
11(VCC) A1 10K 100K
5 R14 9014 9 13
B B
7 15K
R15 3 U3 R27
6 330
U2(LM324) 5(2W) A2 1
4(GND) 3
2 TL431 R26
A 1 C13 1M
2 R28
R16 104 1k
11K LED(R)

HE2
C12
1 C11
10u VR
2 104

2PIN HEADER 1k

R17
15K
A A

Title
27.150MHz TX CIRCUIT DIAGRAM
Size Number Revision
B 44308
Date: 20-Jul-2007 Sheet of
File: D:\44308.DDB Drawn By:
1 2 3 4 5 6

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Document Created: 2007-08-17 17:10:15
Document Modified: 2007-08-17 17:10:15

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