
– 19 – – 20 –
123
4
5678
D
C
B
A
D
C
B
A
123
4
5678
VP
HEAT SINK
CHAPTER 6. CIRCUIT DIAGRAM & PWB LAYOUT
1. Circuit diagram
CIRCUIT(ERA310/A330)
Q1
KTD1415
F1
S T1.6AL/250V
UL CSA 2.0A/125V
C1
M 0.033u
CN1
PS CN
4
1
2
3
BD1
DI102
C2
4700u
50V
R1
12K
R2
3.9K
ZD1
A330:H:MTZ20D
A3 10:L:MTZJ 27A
C4
330u
50v
GND
D6 1N4002
+6V
VCC
VDD
C9
330u
16V
C10
330u
16V
C8
1000u
16V
ZD5
MTZ6.2B
D7 1S S133
D8
1SS133
R9
220
BT
R7
3.6KF
R8
1KF
HEAT SINK
56
12
34
IC1
KA34063A
Q2
KTD1414
R6
10
L1
220uH
D4
PS102R
VCC
PE
R5
100K
R3
56K
R4
2.7K
D3
1SS133
C5
3.3u
50V
ZD2
A3 30:H:MTZ15A
A310:L:MTZ18B
CN14/CN14-1
FM CN
DIG 1 ~1 0
Q31
A1271
R122
Q32
R112
R121
12K
+6V
R111
220
R123 R124
R125
Q33
Q34
R113 R114
R115
R126 R127
Q35 Q36 Q37
R116
R117
C6
0.1u
50V
R128 R129
R130
Q38 Q39
R118
R119 R120
ST1~ST8
C7
220P
Q40
Q31~ Q 33: A 1271
R121~R130: 12K
VB
CN2
BT CN
GND
A310:LC31
A330:HC34
R101 1M
KEY72
ST8
ST1
ST2
ST3
ST4
ST5
ST6
ST7
D9
D10
D11
D12
D13
D14
D16
CN5
CN8P
D15
1SS133*8
R11, 13,1 5,17 ,19,21,
23,25,27,29 : 2.2K
CN15
PM CN
POP UP LED CN * 1
R111~R120: 220
Q3~Q12:C3198
Q34~Q40: B926
FND1
DIG3' DIG2' D IG1'
Q10 Q11 Q12
R27 R29
FND2
DIG5' DIG4'
Q8
Q9
R21 R23 R25
FND3
DIG8' DIG7' DIG6'
Q5
Q6 Q7
R15 R17 R19
FND5 FND4
DIG10' DIG9'
Q3
C3198
Q4
R13R11
2.2K
CN7
R102
56K
CN8
CN9P
RA2
56KX8
GND
D17
1SS133
R40
56K
C11M104
/RESET
KR10
1
5
2
B
5
1
6
1
A
5
A'B'
R30
30
1
3
4
D
5
1
4
3
C
5
C'D'
1
1
6
F
5
1
0
7
G
5
1
2
5
E
5
E'F'G'
SEGA ~DP
MAIN LED PWB
DP'
R38
2.2k
DP
R39
12k
Q13
C3198
ST1~ST8
IC5
KID65003P
KR1~KR9
1/4
(3-6C)(4-6C)
7.8
(3-8A)(4-8A)
(3-5D)(4-5D)
R31
30
R32
30
R33
30
R34
30
R35
30
R36
30
R37
30
(3-8A)(4-8A)
(3 -4 B )(3 -8 C)(4 -8 C)
(3-5D)
(4-5D)
(3-8A)(4-8A)
(3-5D)(4-5D)
Commentaires sur ces manuels