HA-W500RF (EG)/(EK)
4 (No.70270)
Notes:
1. The thick line ( ) is the B (+) power supply.
2. This circuit diagram is the r eference diagram. Cir cuits and constans ar e subject to change without notice for
improvement.
3. Values printed in red show the voltares of each section measur ed by the tester (inter nal resistance 20 kOhms/V),
with the power switch ON.
4. Parts marked with
(in the shaded area ) are safety parts.When replacing these, be sure to use only the
designated parts to ensure safety.
Use of Circuit Diagram
*
N750
Test-1 High RF in
Test-3 Low RF in
Test-8 VCC
Test-7 GND
Test-5 R out
Test-6 L out
VR3 795.1Mhz
VR4 791.5Mhz
OFF
ON
JX1
CHARGE OUTPUT
TERMINAL
Rout
Lout
Test-9 STEREO
2
16
28
11
6
23
3
30
20
5
17
1
21
4
15
29
18
25
IC2
CXA1538M
10
27
26
8
13
9
7
2
2
Rout
Lout
(C74)
Test-10 VT
TEST-11 REF V
X3
10.7M
C47
100
0p
+
C72
4U7
1k5
R13
D4
4148
C8
100 p
D2B GREEN
C40
1u
R12
330
C49
7p
C41
1u
+
C254U7
+
C43
220 u
C42
0.1u
+
-
IC4B
5
6
7
8
4
C73
0.1u
L3
12nH
R37300
C45
0.1u
+
C27
1U
TC1
1.5-3p
VR4
5k
1k
R25
1k
R26
C48
100
0p
R40
1M
D3 4148
Q6 8550
Q7
3904
R41
75k
Q8
3904
+ C38
100u
27k
R22
27k
R23
C22
12p
C75
0.01u
2k7
R19
VR2
100k
+
-
IC4A
LM393 or
NJM2903M
LM393 or
NJM2903M
3
2
1
8
4
2k7
R20
S1a SW SPDT
R42
50K
S1b
SW SPDT
+
C73
220u
R14
100K
+
C32
220u
VR1b
100k
VR1a
100k
C76
100p
L9
15nH
+
C36
2U2
+
C37
2U2
T2
R31
2K2
+ C44
10u
C77
1p
C78
1p
C83
10p
L1
15nH
C881000p
+
C28
4U7
+
C26
1U
+
C29
33U
+
C31
10U
IC1 7201-15
3
1
2
VI
VO
GND
Q9
5508
R56
0
Q1
5094
R49
27K
+ C32
0.47u
R50
330
R53
27K
C30
0.01U
C81
0.01U
Q11
5508
R54
330
+
C23
10U
C24
0.1U
+
C54
2u2
+
C55
2u2
IC5
78L06
3
1
2
VI
VO
GND
R34
2k2
+
C33
4U7
C10
10p
C59
10u
1K
R24
C61
10u
C60
47u
SPK1
32ohm
SPK2
32ohm
C84
0.01u
R30
1k
C17
3P*
C20
2P(N)
R47 18k
ANT1
1
VR5
5K
R33
2K2
R32
3K3
C39
1000p
IC3
LM4809
2
7
1
3
5
4
6
8
IN1
OUT2
OUT1
BY PASS
MUTE
GND
IN2
VCC
VR3
5k
R35
100k
R36
100k
R38
100k
R434k7
R39
68k
C19
0.001u
R4410k
1k
R27
R4510k
1k
R28
C1
3p*
C3
5p6
L8
0.33uh
C53
56P
X1
C2
3P*
R2
39k
R4
470
100
R29
C5
1u
R1
18k
D1
V809
C46
0.1u
R11
100
T1
C874p
X2
10.7MHz
R15
3k3
R16
3k3
C34
0.015u
C35
0.015u
D2A RED
C51
22P
C52
0.01u
10
R18
C21
12p
100K
R21
R46 82K
X4
863 MHz
L2
15nH
C80
0.01u
BATTERY
2.4V
Test-3
Test-1
Test-8
Test-9
Test-5
Test-6
Test-7
Test-10
Test-11
!
!
!
!
!
2.Schematic diagram
+
-
