IPN 220-01396-03
B6.3.20 T855 PCB Information M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
Sheet 2 – T855 Audio Processor
220-01396-03
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ABCDEFGHJ KLMNPQR
REV/ISS AMENDMENTS DATEAPVDD.O.CHKDDRAWN
NO.SHEETS:FILE NAME:
TAIT ELECTRONICS
IPN:
FILE DATE:
ISSUE: ID:.
2.SC.
PROJECT: DESIGNER:
2
10
T855
AUDIO PROCESSOR
1396_03B
220-01396-03
02-02-99
03B
T855RX BENC
4V1
4V1
4V1
4V1
3V
6V4
6V4
&C203
10N
&R209
22K
&R219
8K2
&R202
4K7
C207
1U0
C211
4N7
C209
47U
C213
47N
C215
2P2
C274
100N
C217
47P
C286
4N7
C210
1N0
C253
100U
C219
4N7
C233
10U
C257
1N0
C237
1N0
C238
100N
C259
100N
C239
100U
C261
100U
C240A
1N0
C260A
1N0
C240B
100N
C249
470U
C260B
100N
C262
100U
C240C
220U
C251
100N
C260C
220U
C264
100N
C270
100N
C221
1N0
&C205
4N7
C280
47N
C266
4U7 NP
C268
4U7 NP
C235
1N0
C255
1N0
C278
100N
C223
100N
C225
100N
C229
10U
C276
47N
BAV99
D240
3
1
BAV99
D240
2
3
BAW56
D220
3
1
BAW56
D220
3
2
BAV70
D270
1
3
BAV70
D270
2
3
BAV70
D230
1
3
BAV70
D230
2
3
D280
GREEN
D285
1N4001
D290
1N4001
D295
1N4001
IC270
358
V-
4
V+
8
+
-
IC270
358
3
2
1
+
-
IC270
358
5
6
7
IC210
358
V-
4
V+
8
+
-
IC210
358
5
6
7
+
-
IC210
358
3
2
1
OP
IC240
TDA7231
+
4
-
3
V-
5
V+
1
OUT
2
OP
IC260
TDA7231
+
4
-
3
V-
5
V+
1
OUT
2
IC280
358
V-
4
V+
8
+
-
IC280
358
5
6
7
+
-
IC280
358
3
2
1
L230
100UH
P228
I/OPAD
P234
I/OPAD
P287
I/OPAD
P260
+13V8-FILT
I/OPAD
P270
NO2
I/OPAD
P282
NC2
I/OPAD
P268
NC-1
I/OPAD
P280
COMMON-2
I/OPAD
P207
I/OPAD
P222
I/OPAD
P225
I/OPAD
P236
I/OPAD
P238
I/OPAD
P240
I/OPAD
P284
LINE-MONITOR
I/OPAD
P201
I/OPAD
P246
I/OPAD
P250
I/OPAD
P219
I/OPAD
P254
AUDIO-2
I/OPAD
P242
I/OPAD
P231
I/OPAD
P248
I/OPAD
P252
I/OPAD
RL210
12V RELAY
1
8
RL210
12V RELAY
3
4
2
RL210
12V RELAY
6
5
7
CW
RV230
10K LIN
2
3
1
CW
RV220
10K
2
3
1
CW
RV210
10K LOG
2
3
1
CW
RV205
10K
1
3
2
CW
RV235
10K
2
3
1
R264
27K
R265
100
R269
2K2
R266
22K
R204
10K
R205
220K
R267
330K
R207
8K2
R210
15K
R280
100K
R281
4K7
R211
39K
R282
100K
R288
4K7
R213
2K7
R242
100
R285
47K
R287
10K
R218
3K9
R241
1K0
R244
6K8
R289
6K8
R245
1K0
R221
47K
R222
100K
R293
560
R294
1K0
R247
2K2
R227
1K0
R295
6K8
R296
1K2
R251
39K
R254
8K2
R255
47K
R232
47K
R230
4K7
R256
4K7
R233
8K2
R234
47K
R236
47K
R258
47K
R238
4R7
R260
4R7
R239
1K0
R261
150
R262
1K0
R284
100
R290
1K0
R201
4K7
R249
10K
R275
100
R273
15K
R277
5K6
R278
220K
R229
4K7
R252
4K7
R292
6K8
R271
100K
R272
47K
R215
15K
R224
3K9
R225
470
SW201
SPDT
1
2
3
T210
T4030
1
2
3
4
8
7
6
5
C201
10U
C227
100P
P204
I/OPAD
P213
I/OPAD
P216
I/OPAD
P263
I/OPAD
P210
I/OPAD
P244
I/OPAD
P256
SPEECH
I/OPAD
P266
I/OPAD
D289
1N4001
R298
47K
R299
47K
SL210SL220
C272
10N
C231
10U
D260
3V3
PL270
1X3 WAY
PL260
1X3 WAY
PL250
1X3 WAY
D250
RED
P258
+13V8-FILT
I/OPAD
TP201
TP202
PL210
1X3 WAY
PL220
1X3 WAY
PL240
1X5 WAY PLUG
PL230
1X4 WAY
C222
10U
Q210
BC848
Q220
BC848
Q230
BC848
Q280
BC848
Q290
BC848
Q260
BC848
Q270
BC817
Q250
BC848
Q240
BC857
Q245
BC857
Q255
BC857
R297
10
%R223
10
PL200
2 WAY PLUG
+13V8
+13V8-FILT
+13V8-FILT
+13V8-FILT
+9V
+9V
+9V
+9V
+9V
+9V
+9V
+9V
GND
1R0
1R0
3A1
4A7
5A5
6B1
7A4
8A0
9C6
RELAY-COM-1
1R3
RELAY-NO-1
1R3
LINE-O/P-4
1R2
LINE-O/P-3
1R2
LINE-O/P-2
1R1
LINE-O/P-1
1R1
SPEAKER-O/P
1R2
+9V
3R8
4A8
5B7
6B3
7A5
8A1
RX-DISABLE
8Q6
RECT-NOISE
3K2
RSSI
1R3
3R1
MUTE
8A4
GATE-O/P-1
1R2
+13V8
1R1
1R1
6B2
+13V8
SPEECH
8R0
AUDIO-2
AUDIO-1
1R3
3R4
8A2
LED
8R4
AUDIO
3R5
DISCRIMINATOR
1R3
3R4
8A2
MUTE-DISABLE
DE-EMPHASIS
FLAT
DE-EMPHASIS
FLAT
RX
DISABLE
LINK
GATE
SENSITIVITY
RX-DISABLE
LINE LEVEL
MONITOR VOLUME
GREEN
SUPPLY
RELAY
LINK
MUTE
DC CONDITIONS (VOLTS)
CARRIER MUTE
6B4
6B2
6B3
+13V8-FILT_TESTPOINT
+9V-TESTPOINT
A
B
C
D
E
F
G
H
J
K
N
L
P
Q
M
R
S
T
U
V
W
X
Y
Z
RX-DISABLE-A
RX-GATE-OUT
RX-DISABLE-B
VARIANT COMPONENTS
&C203 &C205 &R202 &R209 &R219
Refer to the parts list for the values for each product type.