1
1
2
2
3
3
4
4
5
5
6
6
D
D
C
C
B
B
A
A
+
10u
C308
2
TP601
TZ206
P0300
2
3
-
+
9
10
8
U302:3
LM660
+
33u
C304
TP103
300mA Resettable
F202
1
2
3
RP201
100K
-
+
13
12
14
U103:4
LM660
1
2
3
RP102
5K
1
JP204
2
2
2
TZ202
P0300
1
2
3
RP306
10K
1
2
3
RP304
100K
R370
2K
TP306
74LVC1G3157
Y0
3
Y1
1
GN
D
2
Z
4
V
D
D
5
S
6
U104
TP202
1
JP207
1
2
3
RP203
100K
1
JP206
R212
300R
-
+
2
3
1
4
1
1
U101:1
LM660
4
5
SR601:1
1
3
2
SW VOL
SR601:2
R351
2.2K
2
3
1
JP306
1
JP202
1
JP101
-
+
6
5
7
U301:2
LM660
2
U102-B
RECT_IN
13
ATK_CAP
12
G_OUT
11
THD_TRIM
10
VCC
16
GND
8
REC_CAP
14
G_IN
9
TRK_TRIM
15
SA572
D604
5.1V
R224
*
R214
300R
3
-
+
2
3
1
4
1
1
U302:1
LM660
1
JP308
TP201
1
2
3
RP101
100K
TZ601
P0300
1
J1
EARTH GROUND POST
+
470u
C322
-
+
2
3
1
4
1
1
U103:1
LM660
3
TZ205
P0300
+
33u
C614
+
470u
C208
3
LM7815
VIN
1
GN
D
2
VOUT
3
U603
R341
300R
3
5
6
10
8
7
12
1
K201
DF2E-DC12V
3
2
1
RP302
1K
1
JP203
+
10u
C211
-
+
9
10
8
U301:3
LM660
P
S
1
6
5
3
4
2
T202
42TU016
U102-A
RECT_IN
3
ATK_CAP
4
G_OUT
5
THD_TRIM
6
VCC
16
GND
8
REC_CAP
2
G_IN
7
TRK_TRIM
1
SA572
+
47u
C110
+
33u
C601
2
+
33u
C612
TZ203
P0300
TP104
2
-
+
6
5
7
U101:2
LM660
-
9
7
U201:3
LM4950
2
-
+
13
12
14
U101:4
LM660
1
JP201
-
+
2
3
1
4
1
1
U301:1
LM660
1
2
3
RP303
5K
+
33u
C611
1
2
3
4
5
6
7
8
PL3
RJ-11
-
+
6
5
7
U302:2
LM660
2
-
+
9
10
8
U101:3
LM660
1
JP302
1
JP307
1
JP303
+
10u
C210
TP302
TP303
TP301
TP304
R208
10R
1
JP210
2
-
+
13
12
14
U301:4
LM660
2
R211
300R
+
33u
C323
+
47u
C311
3
+
33u
C615
-
+
9
10
8
U103:3
LM660
1
JP211
-
+
13
12
14
U302:4
LM660
2
R215
300R
1
2
3
RP202
1K
1
JP309
1
2
PL101
TP100
3
2
1
RP103
1K
750 mA Resettable Fuse
F601
1
JP304
R371
2K
1
JP205
2
-
1
3
U201:1
LM4950
TP305
TZ201
P0300
1
JP209
2
TZ204
P0300
1
JP301
4
300mA Resettable
F201
TP101
1
JP208
1
2
3
4
5
6
7
8
9
10
PL1
RJ-45 10 PIN
2
1
2
PL301
2
TP102
2
R139
2K
1
JP305
P
S
1
6
5
3
4
2
T201
42TU016
2
-
+
6
5
7
U103:2
LM660
2
SHUTDOWN
2
BYPASS
8
GND TAB
5
GND
4
VDD
6
U201:2
LM4950
+15V
+15V
VAN_A
VAN_A
+15V
VAN_A
VAN_A
VAN_A
VAN_A
VAN_A
VAN_A
VAN_A
VAN_A
VAN_A
+15V
VAN_A
+5V
+5V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
VAN_A
+15V
+15V
VAN_A
VAN_A
+15V
+15V
VAN_A
+15V
+15V
+5V
VAN_A
+15V
+5V
+15V
+5V
LLG_TONE
DECODER_AUDIO
HANDSET_PTT
EXT_HOOK/MONITOR
DAC_OUT
LINE_2/SUPERVISOR
PTT_LINE_AMP_ENABLE
PTT_MIC_ENABLE
KEYPAD_BEEP
OFFHOOK_SPKR_MUTE
PTT_DISABLE
EAR_MUTE
MIC_AUD_SELECT
FNC_TONE
INTEROP_XOVER
REF_A
REF_A
TXD2
RXD2
HLG_DET
HLG_SPK_MUTE
HLG_SPK_MUTE
BLK
RED
GRN
YEL
MIC HI YEL
EARPCS GRN
GND BLK
SIMPLEX HANDSET
EAR LEVEL
EXT MON/HOOK RED
GOOSENECK/INT
MICROPHONE
HANDSET
INTERFACE
SPEAKER
LINE
INTERFACE
NOTES
* = NOT INSTALLED
RX NOTCH BANDPASS TUNING
NULLING
NULLING
1K
18 to 22 VDC
DURING
SIMPLEX TX
DAC TONE LEVEL
EXT_PTT_IN WHT
+15V OUT BLU
RX GAIN
MIC AMP
7.5 VOLTS
ANALOG REFERENCE
TX NOTCH FILTER TUNING
TX NOTCH
LINE AMP
DAC SIDETONE JUMPER
FROM
SPK AMP
RX NOTCH
BANDPASS
LINE LEVEL
AUDIO MIXER
RX NOTCH
COMPANDOR
COMPANDOR
4 WIRE/DUPLEX
OPTION
SUPERVISOR/LINE2/
4 WIRE OPTION
SIDE TONE JUMPER
UNDER 4-WIRE OPERATION
GUARD TONE DETECTOR
RX LINE AMP
+15V REGULATOR
TRC-1, TRC-300, AND TRC-400
R445 AND R447 INSTALLED AND
2000 T0 3100 HZ.
2000 T0 3100 HZ.
09-15-2005 - HANDSET NOTE:
PLACE 10K RESISTOR
ACROSS MIKE ELEMENT
(MULTITURN)
(0805)
(0805)
(1206)
(0805)
(0805)
(0805)
(1206)
(0805)
(MULTITURN)
PRODUCTION DATE OF CMX469AD3
C516 = NOT INSTALLED
NOTE3 - C525 = 1uF USED ONLY WITH SPECIFIC
NOTE2 - ZAP FORMAT C515 AND C516 AS SHOWN.
GSTAR FORMAT C515 = .0047u AND
R452 NOT INSTALLED
NOTE4 - R445, R447 AND R452 = 0R WHEN INSTALLED
TRC-100/200
R445 INSTALLED
R447 AND R452 NOT INSTALLED
TRC-500, TRC-600
R452 INSTALLED
R445 AND R447 NOT INSTALLED
COMPANDOR
NOTE5 - ONLY INSTALLED WHEN LCD OPTION REQUIRED.
HLG 13 Vp-p
HLG 13 Vp-p
165 mVp-p
200 mVp-p
8 Ohm at 2 Watt
SEE
SPK AMP
1/3
PTT
EXT.
RELAY
M LEAD
SEE RX
NOTCH
SEE AUDIO
MIXER
BYPASS
COMPANDOR
ENABLE
SEE
MCU PAGE
3/3
2/3
SPARE
FIXED
ADJ
EAR
DUPLX TRUNK GO
AHEAD BEEP
2W
60 mVp-p
LLG
11.7 Vp-p Full Volume @ -5 dbm
11.8 Vp-p
@0 dbm
HLG 11.3 Vp-p
5.8 Vp-p MIN TRIGGER
SPKR MUTE
200 mVp-p
200 mVp-p
FUTURE USE
2
1
A6
D601:1
3
1
A6
D601:2
2
1
A6
D602:1
3
1
A6
D602:2
PL601
560p
C602
.47u
C603
.1u
C613
+
2.2u
C305
+
2.2u
C320
10K
R373
9.1K
R374
-
+
2
3
1
LM324
U303:1
4
VCC
VCC
1
1
GND
GND
LM324
U303:5
.1u
C336
+
2.2u
C100
4.7K
R100
4.7K
R101
5.6K
R134
.1u
C114
.1u
C113
470K
R140
20K
R102
560p
C101
.1u
C120
100K
R104
.47u
C122
BSS
Q101
10K
R127
100K
R131
100K
R132
47K
R133
47K
R128
Y25
Q102
Y25
Q103
.01u
C121
0R
R225
.01u
C209
.1u
C102
.1u
C117
220p
C103
22K
R141
22K
R103
100K
R105
1K
R135
1u
C104
1u
C105
3.3K
R107
330K
R106
1K
R110
100K
R109
33K
R108
1u
C106
.47u
C118
+
10u
C107
1u
C108
1u
C112
1u
C111
10K
R111
10K
R112
1K
R136
100p
C109
0R
R113
51R
R129
.047u
C115
NPO
33K
R117
10K1%
R114
10K1%
R115
10K1%
R116
10K1%
R121
10K1%
R122
10K1%
R118
36K
R119
0R
R137
470R
R125
.01u
C116
.1u
C119
1K
R143
10K1%
R124
10K1%
R126
10K1%
R123
NPO
10K1%
R120
1K
R138
.47u
C202
.1u
C203
.1u
C206
220p
C204
4.7K
R202
10K
R203
0R
R206
100K
R204
150K
R217
150K
R221
BSS
Q202
39K
R207
62K
R209
1M
R218
.033u
C220
220p
C207
100K
R210
100K
R230
.001u
C217
BSS
Q203
0R
R220
2
1
A6
D203:1
B25
Q201
4.7K
R213
0R
R222
0R
R223
.001u
500V
C215
.001u
500V
C216
100R
R216
100K
R226
10K
R227
Y25
Q205
560p
C219
560p
C218
BSS
Q206
.22u
C212
4.7K
R339
0R
R340
BSS
Q303
.047u
C317
22K
R338
100K
R342
150p
C316
180K
R337
1K
R352
3.3K
R334
1u
C314
1u
C315
.1u
C312
.1u
C327
.1u
C306
750K
R335
1K
R332
100K
R333
33K
R336
1u
C313
1u
C303
100p
C310
10K
R330
10K
R331
1K
R357
1u
C309
1u
C307
0R
R346
10K1%
R324
10K1%
R323
36K
R325
10K1%
R322
10K1%
R313
10K1%
R312
10K1%
R310
33K
R321
1K
R362
R130
2.2K
51R
R311
.047u
C325
NPO
470R
R350
.01u
C324
NPO
.1u
C326
10K1%
R309
10K1%
R308
1K
R361
100K
R320
4.7K
R315
43K
R304
47K
R305
10K
R303
10K
R307
2.7M
R306
BSS
Q305
2
1
A7
D301:1
3
1
A7
D301:2
10K
R316
1M
R314
1K
R142
.01u
C338
.1u
C337
.022u
C302
1K
R377
470K
R376
2
1
A6
D302:1
3.3K
R375
5.6K
R301
*
C333
100K
R327
10K1%
R326
4.7K
R329
.01u
C330
10K
R343
22K
R319
39K
R347
1K
R372
1M
R345
.1u
C319
*
C321
62K
R348
910K
R349
100K
R228
BSS
Q302
10K
R328
100K
R229
100K
R378
1K
R358
100K
R359
100K
R360
6.2K
R363
47K
R365
43K
R366
470K
R367
10K
R364
-
+
13
12
14
LM324
U303:4
-
+
9
10
8
LM324
U303:3
*
C329
100p
C332
100K
R369
4.7K
R368
100K
R354
.47u
C334
BSS
Q301
100R
R356
10K
R317
4.7K
R355
B25
Q304
-
+
6
5
7
LM324
U303:2
3.3K
R318
100R
R353
47K
R302
.47u
C318
51R
R344
.001u
500V
C213
.001u
500V
C214
.1u
C201
0R
R201
.022u
C205
100K
R205
MIDIAN ELECTRONICS, INC.
DATE: 11/16/2004
DESIGN: CJS
DWN BY: AWS
REV:
04/17/2009
APPR.
TRC SERIES
ANALOG SCHEMATIC
COPYRIGHT 2009
SIZE
REV.
SHEET
DOCUMENT NAME
DOCUMENT NUMBER
D
G
2 of 2
TRC-7500
7500-ANLG
TRC-2 [2 Wire]
Summary of Contents for TRC-2
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