Icom IC-2300H Service Manual Addendum page 35

• LOGIC UNIT
(BOTTOM VIEW)
SD
NOIS
DETO
GND
SW5V
IDET
SW5V
SW5V
GND
GND
EXTCK
DASTB
MODIN
GND
GND
UNLK
GND
GND
PLLSTB
OE
DATA
PLLCK
PLLDATA
EXTDATA
+8V
EXTSTB
+8V
+8V
VOLOUT
C5V
PWRON
LVIN
INTSP
CLONE
EXTSP
HVIN
• MAIN UNIT
(BOTTOM VIEW)
J1 (CHASSIS)
W2
C307
R188
L42
C306
C300
C304
C303
D33
R187
L39
R186
L38
C295
C296
C298
C291
D26
R185
L32
C270 C205
C242 C227
R198 C209
D23
R173 R139
D34
C276
C247
C232
C174 C187
C64
C162
C81
R118
C175
C166
R53
D17
R57 R122
R37 C51
C58 R47
R39
C308
R191
C315
R130
R197
C202
C193
C192
C201
R196
R129
C314
C208
C171 R86
D13
R120
C123
C122
C112
R115
C191 R202
C196
C37
D3
D10
C195
R126
C39
D7
C46
C24
R43 C29
8 - 2
The combination of top side and bottom side of this
J3
R111
MP3
Q23
C143
C151
Q24
C165
C156
R105
R112
R212
Q25
C10
MP5
Q16
C45 Q2
Q5
C82
C11
C113
Q17
C103
C106
C170
MP5 R74
Q8
C100 Q14
C88
R36
C95
C87
R66
C102
C99 Q13 Q6
C89
C93
R85
R92
C141
R90
C131