Section 6 Board Layouts - Icom IC-7851 Servise Manual

SECTION 6. BOARD LAYOUTS
• DISPLAY UNIT B-8093B
(TOP VIEW)
J11
R41
EP41
R42
R48 R44
R49
R50 R46
R51
R53
2
R47 R55
R52 R57
R54 R59
R56 R61
R58 R64
R60 R66
R62
R63
J4
R65
TO TENKEY J1
C201
C71
EP71
R69
R68
R71 R85
R84 R70
C223
R73 R72
R83 C227
R82
R81
R75
R74
R80
C235
R76
R77
R79
R78
R86
R87
R88
R89
R90
R91
R92
R99
R93
R94 R95
R96 R97
J5
R98
TO TENKEY J2
B8093B
DISPLAY
J6
TO MAIN SENSOR
J6
3
TO LED J1
J11
R271
R272
D253
C271
D252
Q252
EP251
IC271
Q251
C217
R254
R253
X301
C252
R308 R306
C304 C303
C305
C309
R310
R311
C310
R313
C311
C312
R317
C313
R309
IC301
R314
C306
J9 J10
J9 J10
TO SW-B J1
CP141
6-1
R402
Q401
Q402
R404
R423
R422
R261 Q404
R426
Q403
R424
C421
R264
C262 C261
C411
C263
R411
C264
C413
Q506
C503
R504
R507
C504
C301
IC203
R302
R301
C209
C233 C205
C208 R36
J8
C211
C219 C214
J8
TO VR-E J1
TO LOGIC J1431
J7
1
Q101 Q102
C218
C215
C204 C232
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
IC206
R1
J501
J1
TO LCD
TO SW-A J3
R501
Q502
R508
J2
TO VR-D J1
R22
R21
R26
R24
R25 R23
R31 R28
R30 R27
R29
C21
EP21
R37
C23
Q23
R32
Q21
J3
4
TO VR-C J1
J7
C2