EFJohnson 7780 Two-Way Radio User Manual


 
November 1999
Part No. 001-7780-500
1
5
TO
ACCESSORY
JACK
TO PTT BOARD
1
10
11
20
IC209
IC205
IC210
J3
X2
C304
C305
C303
C123
IC104
IC105
IC106
C401
D403
D311
R163
R335
C419
C36
C32
J2
HC2
HC1
R332
R309
R308
R333
C55
C54
C216
C218
R239
IC206
IC203
IC204
W4
W5
C205
R211
Q405
J4
IC306
Q406
X1
C433
C444
C443
C450
C437
C436
D309
W6
R167
PTT OUT
PTT IN
RX IN
RX OUT
EXTDC
OPTB
AMUTI
AMUTO
BEEPO
GND
GND
TX OUT
TX IN
CLR/CODE
T5C
OP1
OP2
OP3
OP4
SW BATT
C418
R207
R215
R214
R213
C229
R254
R212
C207
R240
C209
R216
C16
R220
C210
R221
C211
R225
R244
R226
C45
R227
W12
C214
C226
R222
C208
R223
C44
C213
R224
C212
R243
C4
C23
C15
C1
C30
C31
C2
C7
C5
C3
C25
C24
C6
C423
C422
D308
R323
R301
R249
R302
R232
R235
C215
R236
R231
C43
C219
C217
R238
R237
C435
C438
C439
C440
C449
C448
C447
C454
C430
C431
Q201
Q111
R320
D307
R329
R328
C22
C21
R325
R324
R322
HR1
W10
W9
C137
C118
R127
C111
C138
W8
R408
C402
D313
R337
D310
C113
C136
C142
R145
C139
C140
R132
R131
C121
C122
C141
C403
AUXB
MICE
GND
FCNB
GND
R241
C11
PTT
EXTMIC
TxD
RxD
LVcc
GND
PSW
RESET
AFO
1
9
To DC Power
Flex Circuit
R404
D401
D402
R403
R164
Q403
Q402
Q106
C144
D103
R148
C301
R303
R304
D301
R306
C306
C53
IC107
R140
R139
D102
D101
R141
C52
C17
IC102
R136
C127
R135
C124
R134
C125
C126
R137
C128
R133
C14
C12
C10
J1
C409
C410
C411
C8
C13
R402
R401
C143
R146
C110
R124
C116
R147
C145
R149
R118
R119
R120
C115
IC114
IC113
R159
C155
R158
C156
R157
R156
C153
R154
R153
IC112
C152
R152
C151
R155
C154
C150
R150
R151
C227
C225
R101
R250
R104
IC110
R102
R103
R106
R165
R107
C20
C9
R228
C421
C412
C413
C415
C416
C48
C106
R108
C105
R109
C108
R142
C104
C101
C103
IC101
C102
C51
R105
R111
R110
C18
C107
IC303
R248
R406
R407
C414
C49
Q108
IC309
Q302
IC401
Q301
IC305
R338
R339
R168
R169
R125
C109
C134
C159
R113
R116
R112
HR2
IC304
C26
W11
R210
C224
C222
IC403
IC208
R143
R166
C130
C223
R245
R205
C203
IC202
R204
R253
C46
C432
R203
R206
C201
C202
R202
R201
R247
R246
C206
C228
C456
W7
C406
C404
C405
C420
C408
C407
R326
D312
C29
C33
R315
R314
D302
C28
R316
D305
Q401
Q102
Q105
Q109
Q107
C157
C158
R317
R321
R330
R331
R170
R162
R161
Q104
IC115
Q112
D306
HD1
R318
C27
HC3
R311
C307
R310
R313
R312
R319
D104
R160
Q103
HC4
C19
IC103
Q101
C446
C441
C434
C451
Q110
IC201
R252
R251
IC402
Q404
R208
C204
SPE
SPE
SP
SP
L5V
MSO
MSCK
DISST
DISEN
KEYSO
KEYS1
KEYS2
KEYS3
KEYRO
KEYR1
KEYR2
KEYR3
TXLED
DSYLED
BATLED
BKLED
GND
MICE
MIC
GND
GND
PWR
TMUT
T5V
LTR
MOD
+5V
TA
ULOCK
GND
GND
BATT
BATT
BATT
BATT
BATT
R5V
DET
NOISE
RSSI
W/N
PLLST
PLLSO
PLLSK
RF5C
GND
Vcc
Vcc
GND
GND
GND
C129
R336
S1
R117
D105
1
30
15
16
TO DISPLAY UNIT
TO RF UNIT
Channel Switch
On-Off Volume Control
LOGICBOARDTOPVIEW
LOGIC BOARD TOP VIEW
8-6