IC-F3/F4 SERIES MODIFICATION POINTS
1
C1
C2
C5
C8
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C40
C46
C49
C50
C54
C55
C56
C57
C58
C59
C63
C64
C69
C73
C75
C77
C78
C79
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C124
C125
C126
C129
C131
C132
C133
C134
C135
C136
C137
C141
C142
C143
C146
C147
C149
C150
C151
C152
C154
C163
C164
C165
C166
C167
C168
C169
C170
C179
C181
C182
C183
C184
C185
C186
C189
C190
C204
C205
C211
C212
C213
C214
C217
C219
C221
C231
C232
C233
C234
C237
C238
C239
C240
C241
C242
C243
C244
C256
C268
C273
C274
D1
D3
D7
D8
D16
D17
DS2
DS3
IC1
IC2
IC3
IC4
IC5
IC10
L4
L5
L6
L7
L24
Q2
Q3
Q11
Q14
Q17
Q25
R253
Q34
Q37
R1
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R30
R31
R34
R35
C280
R42
C279
R44
R45
C278
R49
R52
R53
R54
R55
R56
R79
R80
R81
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R93
R94
R95
R96
R97
R98
R99
R100
R104
R105
R106
R107
R108
R109
R112
R113
R114
R115
R116
R117
R126
R127
R128
R130
R131
R132
R142
R144
R151
R153
R154
R155
R159
R160
R166
R167
R168
R169
R170
R175
R176
R178
R183
R185
R186
R190
R204
R205
R210
R215
R216
R238
R239
R240
R241
R242
R243
L28
C291
X3
L26
L27
R244
R245
L23
R257
R250
C286
R251
R255
C290
D19
R177
C288
C287
C180
C171
C289
L30
D29
C1
C2
C5
C8
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C40
C46
C49
C50
C54
C55
C56
C57
C58
C59
C63
C64
C69
C73
C75
C77
C78
C79
C110
C111
C112
C113
C114
C115
C116
C117
C118
C119
C120
C121
C122
C124
C125
C126
C129
C131
C132
C133
C134
C135
C136
C137
C141
C142
C143
C146
C147
C149
C150
C151
C152
C154
C163
C164
C165
C166
C167
C168
C169
C170
C179
C181
C182
C183
C184
C185
C186
C189
C190
C204
C205
C211
C212
C213
C214
C217
C219
C221
C231
C232
C233
C234
C237
C238
C239
C240
C241
C243
C244
C256
C268
C273
C274
D1
D3
D7
D8
D16
D17
DS2
DS4
IC1
IC2
IC3
IC4
IC5
IC10
L4
L5
L6
L7
L24
Q2
Q3
Q11
Q14
Q17
Q25
R253
Q34
Q37
R1
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R30
R31
R34
R35
C280
R42
C279
R44
R45
C278
R49
R52
R53
R54
R55
R56
R79
R80
R81
R82
R83
R84
R85
R86
R87
R88
R89
R90
R91
R93
R94
R95
R96
R97
R98
R99
R100
R104
R105
R106
R107
R108
R109
R112
R113
R114
R115
R116
R117
R127
R128
R130
R131
R132
R142
R144
R151
R153
R154
R155
R159
R160
R166
R167
R168
R169
R170
R175
R176
R178
R183
R185
R186
R190
R204
R205
R210
R215
R216
R238
R239
R240
R241
R242
R243
L28
C291
X3
L26
L27
R244
R245
L23
R257
C286
R251
R255
C290
D19
R177
C288
C287
C180
C289
L30
D29
J6
L2
L3
J7
J6
L2
L3
MC1
J7
Q1
Q1
SP
SPG
P1
ANTENNA
SPEAKER
SP1
MICROPHONE
DET
Remove the resister
from the board.
B4929F or E
w
q
Service window
1
C213
DS2
C213
MC1MC1
J6
J7
J7
SPSP
SPGSPG
P1P1
ANTENNAANTENNA
SPEAKERSPEAKER
SP1SP1
MICROPHONEMICROPHONE
C3
C5
C477
C7
C8
C10
C13
C14
C497
C17
C18
C20
C22
C25
C26
C27
C30
C32
C42
C51
C52
C60
C61
C62
C63
C64
C73
C75
C76
C99
C106
C107
C108
C109
C112
C113
C114
C115
C116
C118
C120
C124
C125
C126
C133
C134
C135
C136
C137
C139
C140
C142
C146
C149
C151
C152
C156
C160
C162
C165
C166
C167
C170
C179
C200
C201
C202
C204
C205
C217
C218
C229
C234
C237
C238
C239
C240
C242
C408
C415
C419
R438
C474
C473
C481
C482
C464
C451
C443
L6
C476
L12
L13
L20
L21
L22
L24
L404
L406
L407
R1
R3
R7
R8
R9
R12
R14
R17
R19
R21
R32
R33
R34
R40
R41
R44
R45
R46
R52
R53
R54
R55
C450
R63
R65
R67
R68
R69
R70
R72
C448
R77
R83
R84
R85
R93
R94
R95
R96
R97
R99
R100
R104
R105
R107
R108
R109
R112
R114
R115
R116
R117
R120
R121
R122
R123
R127
R128
R132
R134
R135
R137
R141
R142
C460
R153
R154
R158
R159
R160
R163
R176
R178
R184
R208
R209
R210
C455
R405
R406
R407
R408
R409
R414
R415
R420
R421
R422
R424
R451
R457
C479
R452
R453
R459
R450
R444
R458
C492
R442
R165
L411
R449
R439
R454
C452
R446
C458
R464
R455
C465
C487
L412
C486
C496
R469
C15
C483
C3
C5
C477
C7
C8
C10
C13
C14
C17
C18
C20
C22
C25
C26
C27
C30
C32
C42
C51
C52
C60
C61
C62
C63
C64
C73
C75
C76
C99
C106
C107
C109
C112
C113
C114
C115
C116
C118
C125
C126
C133
C134
C135
C137
C140
C142
C151
C152
C156
C160
C166
C167
C170
C179
C200
C204
C205
C218
C229
C234
C237
C238
C239
C240
C242
C408
C419
R438
C474
C473
C481
C451
L6
C476
L12
L13
L20
L21
L22
L24
R1
R7
R8
R9
R12
R14
R17
R19
R21
R32
R33
R34
R40
R41
R44
R45
R46
R52
R53
R54
R55
C450
R63
R65
R67
R68
R69
R70
R72
C448
R77
R82
R83
R84
R85
R93
R94
R95
R96
R99
R105
R107
R108
R109
R112
R115
R116
R120
R121
R122
R123
R126
R127
R128
R132
R134
R135
R141
C460
R153
R154
R158
R160
R176
R178
R184
R208
R209
R210
C455
R405
R406
R407
R408
R414
R420
R422
R424
R451
R457
C479
R452
R459
R450
R444
R458
R165
R449
R439
C452
R446
C458
R455
C487
C496
R469
C15
C483
C9
C9
W6
C11
C48
C128
C150
C154
C169
C211
D1
D3
D24
D27
D402
D404
X3
D406
D405
C467
IC2
IC3
IC4
IC6
IC10
L1
L5
L15
Q2
Q3
Q9
Q13
Q16
Q18
Q20
Q22
Q28
Q31
Q400
Q401
Q402
R5
R162
R174
C456
Q404
IC1
Q1
L414
W6
C47
C48
C117
C150
C154
C169
D3
D24
D27
D402
X3
C467
IC2
IC3
IC4
IC5
IC6
IC10
L1
L15
Q2
Q3
Q9
Q13
Q18
Q20
Q22
Q28
Q31
Q401
Q402
R5
R162
R174
C456
C491
IC1
Q403
Q1
L414
L14
L14
Q37
Q37
D4
D4
Q34
Q34
Q19
Q19
D1
R156
R157
AF
Remove the resister
from the board.
Service window
q
w
B4923H or G
Jumper
chips
Jumper chips
•
CPU side
•
LCD side: B4923G only.
•
CPU side
•
LCD side: B4929E only.
M
Model: IC-F3/IC-F3S
PC board number
B4929E; Remove the LCD side jumper chip and the CPU side jumper chip
q
.
B4929F; Remove the CPU side jumper chips
q
and
w
.
M
Model: IC-F4/IC-F4S
PC board number
B4923G; Remove the LCD side jumper chip and the CPU side jumper chip
q
.
B4923H; Remove the CPU side jumper chips
q
and
w
.
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