Icom ID-51A Service Manual - Page 46

Board Layouts, B7722d

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R16 C65 R22 R58 R48 R19 SECTION 9. BOARD LAYOUTS The combination of top side and bottom side of this V45 V40 V35 V30 • LOGIC UNIT (TOP VIEW) C28 DS1 DS3 D33 DS12 J2 Q9 Q8 C90 NC NC NC NC NC NC LCDCS LCDRES LCDRS LCDCK LCDDT GND NC NC NC NC NC NC NC NC C89 R73 R72 R52 R47 R51 R49 R57 R55 DS7 C393 C503 R25 R27 C394 R391 Q390 R395 R396 R70 R71 R40 C51 R398 R397 R79 R17 R23 C27 S10 S11 D1 D10 DS9 DS10 D12 DS2 SC7D S6 C S5S S4 D2 D11 DS8 DS11 D9 D4 D40 S9 DS5 S2 DS6 S1 DS4 DS3R D3 C29 S8 R10 MC1 EP1 C23 B7722D C399 C517 IC13 R12 R11 C398 R8 R13 R56 BT1 V25 V20 V15 V10 V5 V0 H95 H90 H85 H80 H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20 H15 H10 H5 H0 9-1

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9-1
SECTION 9
.
BOARD LAYOUTS
The combination of top side and bottom side of this
• LOGIC UNIT
(TOP VIEW)
CD
CS
DR
LCDCK
LCDRES
LCDCS
LCDDT
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
LCDRS
BT1
C23
C27
C28
C29
C51
C65
C89
C90
C393
C394
C398
C399
C503
C517
D1
D2
D3
D4
D9
D10
D11
D12
D33
D40
DS1
DS2
DS3
DS4
DS5
DS6
DS7
DS8
DS9
DS10
DS11
DS12
EP1
IC13
J2
MC1
Q8
Q9
Q390
R8
R10
R11
R12
R13
R16
R17
R19
R22
R23
R25
R27
R40
R47
R48
R49
R51
R52
R55
R56
R57
R58
R70
R71
R72
R73
R79
R391
R395
R396
R397
R398
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
B7722D
H0
H5
H10
H15
H20
H25
H30
H35
H40
H45
H50
H55
H60
H65
H70
H75
H80
H85
H90
H95
V0
V5
V10
V15
V20
V25
V30
V35
V40
V45