Icom ID-52A Service Manual page 18

(Amended page)
February 2022
• LOGIC UNIT (B-9524A: Bottom view)
R242 R242
C522 C522
Q21 Q21
J5
VBUS_M TXSTB
VBUS_M HV
USB_GND YOBI2
USB_GND 32K
EXTMIC TXI-V
MICGND BTVIN
STEN BTDETO
STSTB GND
RTC_SCL CLONE
RTC_SDA LIOEN
PLLDATA APLLSTB
PLLCK BPLLSTB
BNOISE MOD_CLK
BRSSI MOD_DATA
BDET MOD_LRCLK
3_6V BUNLK
BAF TTEMP
5VS GND
AAF CK
ARSSI DATA
ANOISE AUNLK
PCON2 T5C
ADET BTAF
SP+ SP–
SP+ SP–
To MAIN UNIT J303
R281 R281
C537 C537
C538 C538
H95 H90 H85
[USB]
EP27 EP27 J7 J7
D42 D42
D41 D41
C230 C230
Q35 Q35
FI1 FI1
C196 C196
R237 R237
C202 C202 R198 R198 R190 R190 EP28 EP28
C203 C203 R241 R241 C201 C201
C278 C278 R495 R495
C206 C206
C237 C237 R74 R74
C204 C204
R234 R234
C252 C252
R228 R228 R460 R460
R452 R452
R218 R218 R461 R461
EP24 EP24
R219 R219
R451 R451
R503 R503
R176 R176
R530 R530
R531 R531
L4 L4
R462 R462
J5 J5
C250 C250
L3 L3
C110 C110
R114 R114
Q32 Q32
R416 R416
MP2 MP2
IC10 IC10
R512 R512
D1 D1
R117 R117
L2 L2 EP6 EP6
D3 D3
R396 R396
D7 D7
IC34 IC34
D8 D8
D5 D5
R437 R437
R438 R438
R282 R282
D44 D44 J3 J3
R283 R283
C245 C245
C246 C246
C539 C539
IC33 IC33
R432 R432
R431 R431
H80 H75 H70 H65 H60
[microSD]
The underlined parts have been updated from the addendum of the previous version, or from the original page.
C148 C148
R134 R134 R143 R143
R142 R142
R141 R141
R453 R453
C147 C147
R455 R455 C258 C258
R119 R119
R454 R454 C261 C261
IC392 IC392
R456 R456
R132 R132
C253 C253
C184 C184 R130 R130 D181 D181
C259 C259
C180 C180
R197 R197
C254 C254 D180 D180
C255 C255 C416 C416 R541 R541 R133 R133 R205 R205 C190 C190
R284 R284 C138 C138 R178 R178
R165 R165
IC13 IC13
C108 C108 R514 R514
C116 C116
R161 R161
R291 R291 R221 R221
C251 C251 R322 R322
C572 C572 R215 R215
R535 R535 C112 C112
C288 C288 R164 R164
C289 C289 R266 R266
R33 R33 R22 R22 C78 C78
R515 R515
C292 C292 C107 C107
R264 R264
C291 C291 C103 C103
R257 R257
EP35 EP35 C80 C80
R516 R516
C286 C286
EP36 EP36
C287 C287
R42 R42 R41 R41
C45 C45
R34 R34 C226 C226 R21 R21
C50 C50
EP34 EP34
R20 R20 C47 C47
C227 C227 R51 R51
IC1 IC1
C243 C243 C58 C58
C244 C244
R39 R39
C249 C249
IC27 IC27
C228 C228
R436 R436
IC9 IC9
R6 R6
R5 R5
S13 S13 S14 S14
H55 H50 H45 H40 H35 H30
[ ] [SQL]
• GPS UNIT (B-9095C)
J3
To LOGIC UNIT J8
7-4a
R509 R509
R510 R510
R508 R508
R507 R507
C38 C38 C44 C44
R240 R240
D24 D24
R107 R107
EP37 EP37
C102 C102
IC8 IC8
R88 R88
Q11 Q11
D23 D23 R99 R99
R98 R98
R105 R105 R101 R101
C418 C418 C33 C33 C41 C41
R217 R217 C205 C205
EP25 EP25 C419 C419
IC36 IC36
R275 R275
R231 R231
R288 R288
R270 R270
R271 R271
C407 C407 C566 C566
R246 R246
R420 R420
R173 R173 R424 R424
IC20 IC20
R172 R172
J8 J8
R189 R189
C166 C166
C146 C146 IC41 IC41
C535 C535
C168 C168
C169 C169
C509 C509
R258 R258 EP39 EP39
R259 R259 C533 C533 C417 C417
IC17 IC17
C573 C573 C198 C198
R260 R260 R309 R309
R238 R238
R253 R253 R235 R235
R195 R195 R196 R196 C317 C317
R255 R255
R276 R276
C191 C191 C306 C306 R320 R320
R254 R254
C570 C570 C300 C300
R256 R256
R109 R109
X1 X1 EP32 EP32
R77 R77
C83 C83
C551 C551
R26 R26
C552 C552
C52 C52
R290 R290
C559 C559
R55 R55
R49 R49
R439 R439
C555 C555
R519 R519
C238 C238 MP4 MP4
R523 R523
C82 C82
C217 C217
C563 C563 C558 C558 C266 C266 R501 R501
R75 R75
C554 C554 C267 C267 C553 C553
C89 C89
Q8 Q8
R76 R76
C90 C90 R72 R72
C214 C214 C79 C79
R73 R73
S15 S15
H25 H20 H15 H10 H5
[PTT]
(Top view)
V0 V5 V10
C17 C17
C18 C18
C11 C11
GND
GND
G_RXD
GND
GND
GPS2
G_TXD
G_RXD
GND
GND
J3 J3
R8 R8
R7 R7
J8
NC GND
NC GND
NC G_RXD
NC GND
NC GND
NC GPS2
NC G_TXD
NC G_RES
NC GND
NC GND
To GPS UNIT J3
H0
(Bottom view)
V10 V5 V0
EP1 EP1