Audio Pa & I/O Sections - Motorola M11URD6CB1_N Service Manual

IGNITION ONE SHOT
R465
7
IGNITION_CONTROL
4.7K
R466
4.7K
R464
470K
IGNITION_SENSE
VPP
+5V
R433
VR430 4.7K
NC
5.1V
R431
PUBLIC_ADDRESS
10K
PTT
GATED_RX_AUDIO
FLAT_RX_AUDIO
EXTERNAL_ALARM
K9V1_ENABLE
+5V
R423
4.7K
R424
DATA_PTT
560
+5V
R430
4.7K
RSSI_BUF
R401
RX_AUDIO
4.7K
+5V
D402
NC
+5V
Q415
R404
10K
R405
AUDIO_PA_ENABLE
10K
NC D401
INT_SPKR-
INT_SPKR+
MIC
Schematic Diagram for HLF9005, HLF9006A,
HOOK_RSS
HLF9007A & HLF9008A Main Board,
Audio PA & I/O Sections
10 6880905Z99-O June, 2000
+5V
FLT_A+
FAST OFF CIRCUIT: IGN DETECTOR
R460
R467 2
200K 10K 1
R468 U460
B+_CONTROL Q461 Q460
C460 10K 3
R463 2.2UF
1M
+5V
8
6
U460 R461
5
4 47K R450
4.7K
R462
200K Q450
FAST_OFF_IGN
R449
33K
C451
39PF
FLT_A+
U402 16
15
W0
14
W
1
W1
2
X0
4
X
3
X1
6
Y0
5
Y
10
Y1
11
Z0
13
Z
12
Z1
+5V
9
CNTL
D403 FLT_A+
8 7
R440
4.7K
R412
4.7K
Q410
Q411
C412 VR412
R411 33V
39PF
10K C410 VR410
NC
R427 C411 39PF 5.1V
100K .01uF
C416
39PF
C401
FLT_A+
0.1UF
C402
R402 C415 VR415
1K .0033uF 39PF 14V
C409
SW_B+ .1uF
FLAT_TX_AUDIO
U401 7
C405 C407
.01uF
R406 9 4 .001uF C413 C414
INV OUT1
22K 1
NINV
R428 3
RR 39pF 1000pF
10K 8 6
M_SS OUT2
R418
Q401 R426
C404 9V3
200K
47UF 2 5
10K
C403
C406 C408 2
NU 8 R425
1 6
.001uF .01uF 8
3 U403 7
10K U403
4 5
VAG 4
FLT_A+
J400
SW_B+
R442 R452
47K
10K
F401
L414 9
SWB+
1 2
S401 63V
SWITCH 500mA
C442 VR441
39PF
33V
Standard/Data Ignition
3 4
L403
R451 10
IGNITION_SENSE
BLM21A05
4.7K
VR451
5.1V
L404
R421 8
SCI_TX SCI_DATA_OUT
BLM21A05
560
C421 VR421
39PF 14V
R422 L405
6
BUS+ SCI_DATA_IN
BLM21A05
4.7K
C422 VR422
39PF 14V
7
GROUND
C431 VR431
39PF 14V
L406 12
PUBLIC_ADDRESS/SPEAKER_MUTE
BLM21A05
L413 4
EXTERNAL_ALARM/TX_SENSE
BLM21A05
L407
15
SYS_BUSY/RSSI_BUF
BLM21A05
L415 16
EXT_SPKR+
INTERNAL
L416 1
EXT_SPKR-
SPEAKER
L408
2 JUMPER
EXTERNAL_MIC_AUDIO
BLM21A05
L409 14
HOOK
BLM21A05
R435 L410 3
VR416
PTT/DATA_PTT
14V
BLM21A05
560
L411 5
FLAT_TX_AUDIO
VR425
C425 BLM21A05
5.1V
39PF L412
11
EXT_RX_AUDIO
BLM21A05
L435 13
INT_SPK+
C418
C423
39PF
4.7uF
VR426 R417 C426
14V 100K 39PF
FLT_A+ FLT_A+
SW_B+ SW_B+
9V3 9V3
C419
R419 +5V +5V
100 VAG VAG
47uF
VR427 R420 C427
NC
14V 100K 39PF