TR Series Tone Remotes
Instruction ManualTR Series Tone RemotesRev. C
TR10
TR20
TR30
TR40 1
CONTENTS
Topic …………………………………………….. Page #Specifications …………………………………………….. 2 General Description …………………………………….. 3 Installation ………………………………………………….. 3 Jumper settings …………………………………………… 4 Dip switch settings ……………………………………….. 4 Circuit Analysis …………………………………………… 5 Parts List ……………………………………………………. 5, 6, 7 Control Panel PCB View ……………………………….. 8 Control Panel PCB Schematic ……………………….. 9 Main PCB View …………………………………………… 10 Main PCB Schematic …………………………………… 11,12,13,14 External Adjustments ……………………………………. 15 Warranty ……………………………………………………. 16
SPECIFICATIONS Subject to change without notice.
Power Requirements
120 VAC, 60 Hz for wall pack (provided) operation 12 VDC to 16 VDC @ 600 mA maximum. Fused on circuit board.
Dimensions
9″ x 4″ x 7″ inches
Weight
TR10 – 5 lbs, TR20 – 5 lbs, TR30 – 5 lbs, TR40 – 5 lbs.
Audio Output to Speaker
2 Watts at 3% THD into 8 ohms, using supplied wall pack or 12 VDC.
Handset Earpiece Level
Volume Control Adjustable.
Frequency Response
+/- 3dB from 300 to 3000 Hz, except at notch freq. 1000 Hz reference.
Hum and Noise
50 dB below operating levels
Notch Filter
2175 Hz down 50 dB from 1000 Hz reference level.
Compression
Less than 3 dB increase in output with 30 dB increase in input beyond threshold. Threshold is adjustable from -20 dBm to +10 dBm.
Line Impedance
600 ohms or 5000 ohms, dip switch selectable.
Line Output Level
Factory set at 0 dBm. Adjustable to +10 dBm maximum.
Control Tone Frequencies
Security Tone: 2175 Hz +/- 0.01% @ +10 dBm for 140 mS. Function Tone: F1 1950 Hz +/- 0.01% @ 0 dBm for 40 mS.F2 1850 Hz +/- 0.01% @ 0 dBm for 40 mS. Monitor Tone: 2050 Hz +/- 0.01% @ 0 dBm for 40 mS. Hold Tone: 2175 Hz +/- 0.01% @ -20 dBm for duration of PTT.
Operating Modes
Standard: Two wire simplex Optional: Two wire duplex, four wire simplex and four wire duplex.
2
General DescriptionThe TR series tone remotes are designed to provide remote control of a conventional or trunked two way radio base station or repeater via a leased wire line, in-house twisted pair or RF link.The TR series is available in four different housing configurations. They are: the TR10 telephone style unit with handset, the TR20 desktop console with desk microphone, the TR30 desktop console with built in electret condenser microphone and the TR40 desktop console with goose neck microphone.Standard features on all TR models include front panel PTT switch, LED transmit indicator, monitor function, intercom function, two watt amplified speaker with volume control.The TR10, 20, 30 and 40 may be wall mounted by ordering the -WM option. When wall mounting the TR20 please note, no provisions are made for mounting the desk microphone.TR series units are normally powered by the supplied wall plug-in transformer. The may also be powered from a 12 volt DC source by removing the wall pack and making the appropriate DC connections to TB1.InstallationThe TR series tone remotes will work with any remote system using the EIA standard tone control format. They are designed with protection against both power and telephone line surges. This protection circuitry requires a properly grounded AC outlet be used to power the wall pack. If the remote is to be powered directly from DC, a well grounded 12 to 16 volt DC supply is required.Phone lines – The TR series is designed to work with a good quality leased voice grade pair (phone line) or in house twisted pair wiring.Parallel operation – When several remote control units are connected in parallel the total system impedance will decrease to a point where operation is degraded. This occurs when three or more remotes are connected in parallel.To compensate for this effect, TR series remotes provide a switch selectable 600 ohm or 5000 ohm impedeance. In parallel remote installations using the same phone line, dip switch 1 should be in the OFF position (5000 ohms), in all remotes except the last one in the chain. For multi-point installations using more than one phone line the above procedure applies to each phone line.Up to ten TR series tone remotes may be connected in parallel. The maximum loss between any remote and the termination panel must not exceed 20db.Level Setting The following adjustments assume that the termination panel has been properly installed.Line Input – The receive line input, R89, adjusts the audio level to the input of the compression amplifier circuitry. This allows the threshold of compression be adjusted from -20 dBm to +10 dBm.While applying an RF signal modulated with a 1000 Hz tone at 60% system deviation to base station receiver, adjust the termination panel line output control for 0 dbm to the phone line. Adjust each remote as follows:a. Connect a scope or analog AC volt meter to ground and pin 14 of U2. b. With R89 fully clockwise, adjust in a counter-clockwise direction until the AC voltage level on scope (approx. 1V peak to peak) or meter (approx. 360 mVrms) just stops increasing. This point is the threshold of compression. c. Remove the RF Signal from the base station.Line Out – This level is preset at the factory for 0 dbm out to the phone line and may not require readjustment at installation. If needed, the procedure is as follows:1. With the handset off-hook, if applicable, depress the intercom switch and adjust the mod out pot (R63) while speaking in a normal voice until 0 dbm is measured across the phone line at the termination panel.2. Move dip switch 7 to the on position and key the remote. Adjust R80 (Tone Level) until the 1950Hz function tone measures 0 dBm across the phone line at the termination panel.Notch filter – The 2175 Hz notch filter is factory tuned and should not need readjustment except in the event of repair. Adjustment procedure is as follows:a. Apply a 0 dBm, 2.2Vpp, 2175 Hz signal across the red and green phone line inputs. b. Using a dual channel scope in the X-Y mode, connect one probe to pin 14 of U2, the other to pin 8 of U3. c. Adjust R39 until the lissajous pattern on the screen closes to a flat line. Remove probes. d. With the scope in the single channel mode, connect probe to pin 14 of U3. Adjust R38 to obtain minimum signal3
level on the scope. Readjust R39 slightly to further reduce signal level. Recheck R38 then R39. Notch will be approximately 58 dB deep.Microphone Sensitivity – R75 controls the microphone audio level into the transmit compression circuit and therefore acts as a sensitivity control. This potentiometer has been factory set to provide adequate compression for normal voice audio with a relatively quiet background noise level.Jumper SettingsThe TR series circuit board has 9 “Dot” jumpers. These jumpers are “in” if there is a solder short across it and “out” if there is not. Table 1 lists the jumpers by number and explains their function. Factory settings are underlined.
Table 1
Dip Switch SettingsTable 2 describes the functions provided by the dip switch on the bottom of the unit. The factory setting are
JP#
IN
OUT
1
For 2 wire operation.
For 4 Wire or FD operation.
2
For 4 Wire or FD operation.
For 2 wire operation.
3
For 2 wire operation.
For 4 Wire or FD operation.
4
For FD operation.
For Non-FD operation.
5
For FD operation.
For Non-FD operation.
6
Normal boom/panel mic gain.
Increased boom/panel mic gain.
7
Three to ten frequency models.
One and two frequency models.
8
Three to ten frequency models.
One and two frequency models.
9
Three to ten frequency models.
One and two frequency models.
underlined.
Table 2
Switch # 1 2 3 4 56 7 84
ON 600 ohm termination TR 10 (Does not affect TR30 or TR40)TR30 or TR40 TR20Allows volume to be turned down completely.TR20, TR30 or TR40 – SPKR always ON Locks up function tone (0 dBm)Disables tone attenuation (All tones at +10 dBM)
OFF 5000 ohm termination TR20 (Does not affect TR30 or TR40)TR10 or TR20 TR10, TR30 or TR40 Prevents volume from being turned downcompletely. TR10 – SPKR mute with handset off-hookNormal operation Normal operation
Circuit AnalysisReceive Audio Path Receive audio from the phone line enters through transformer T1. The control for Receive line input, R89, adjuststhe signal level passed to the remaining receive audio circuitry. This signal is coupled through audio gate U9-B to the compression amplifier formed by U2-A, B and C. The compression amplifier operates by sampling the output of U2-C through C5 and R32 and then rectifying it with D1 and D2. The rectified DC voltage, which varies as the receive audio level varies, controls the impedance of Q2. The varying impedance of Q2 controls the signal level input to U2-B. C6 and R8 control the compressor attack and decay time. U2D and it’s associated circuitry form a high pass audio filter which reduces 60 Hz components by as much as 40 db.The compressor output is passed to the notch filter through R19. The notch filter is made up of U3, sections A, B, C and D, and their associated components. It is tuned to the notch frequency by adjusting R39 and R38. When properly tuned, the 2175 Hz component of the audio signal is reduced by as much as 50 db. The output of the notch is passed to the front panel volume control through audio gate U9-A. Padded output audio is gated through U6-C to the receive audio amplifiers U4 and U5. Low level audio for the handset earpiece is provided by U7-D and adjusted by R96. It is then gated through U6-B, buffered by U7-C and sent to the handset.Transmit Audio Path Mic level audio is fed to preamp U7-A or U7-B, depending on which mic is used. Preamplified transmit audio isrouted through audio gate U6-A or U6-D, depending on which mic is used, to the mic level adjustment R75. R75 sets the signal level passed to the compression amplifier formed by U2. The compression amplifier operates by sampling the output of U2-C through R32 and C5 and then rectifying it with D1 and D2. The rectified DC voltage, which varies as the transmit audio level varies, controls the impedance of Q2. The varying impedance of Q2 controls the signal level input to U2-B. C6 and R8 control the compressor attack and decay time. U2-D and it’s associated circuitry form a high pass audio filter which reduces 60 Hz components by as much as 40 dB.The compressor output is passed to the notch filter through R19. The notch filter is made up of U3, sections A, B, C and D, and their associated components. It is tuned to the notch frequency by adjusting R39 and R38. When properly tuned, the 2175 Hz component of the audio signal is reduced by as much as 50 db. The output of the notch is gated through U9-D and fed to the phone line driver circuit of U10-A and U10-C. U10-A and U10-C form a pushpull amplifier to drive transformer T1.Transmit Mode When the PTT line is grounded, pin 24 of U17 senses the ground and provides timed logic high outputs from pins10 and 11 enabling audio gates U11-B and U11-C. U12 simultaneously passes a 16 bit digital word to the monolithic sine wave generator U12 determining the frequency to be output to control tone amplifier U13. The control tone amplification is adjusted by R80. Amplified control tones from U13-B are fed to the phone line driver circuit of U10A and U10-C. U10-A and U10-C form a push-pull amplifier to drive transformer T1. Simultaneously, pins 12, 13 and 14 of U17 are manipulated to control transmit and receive audio gating through control lines 1, 2 and 3.
Parts List TR Series main PCB #700-DRBB-200 Rev. B
ReferenceCAPACITORS C5, 6 C7,14,27,37,39,40,44,48,53,60 C8 C9
Description1uF Elec Rad .1uF Mono Cer Dip 470pF Cer Disc .47uF Elec Rad
CPI Part #208-4052-105 208-0092-104 208-0002-471 208-4052-4745
Reference C10,11 C12,28,45,46 C13,17 C15,16,41,55,56,59,65,67 C22,23,24,54 C25 C26 C32,33 C36,50,52,57 C38 C42 C43 C47 C49,51,58 C61,62 C63DIODES D1,2,12 D7 D8,9,10,11 D13TRANSISTORS Q2,10,11 Q4 Q5,6,7,8,9RESISTORS R7,32,36,49,82,97,102,119,123,125 R8 R9,11,35,37,69,77,78,79,81,95,103,104, 106,115,116,120 R10,20,23,34,42,71,100,105,109 R12,14,17,18 R13 R15,74 R16,19 R21 R30 R31 R33 R40,70 R41,43,44,111 R47 R64 R65,62,86 R66,67 R68,73 R72,84,126,127 R74 R83 R85 R87,88 R90 R916
Description .01uF 1% Mono Cer Dip 220uF Elec Rad 4.7uF Elec Rad .1uF Mono Cer Dip .033uF Met Mylar 2200pF 220uF Elec Rad NP 4.7uF Elec Rad 100uF Elec Rad 22uF Elec Rad 47pF Mono Cer Dip 180pF Mono Cer Dip 1000uF Elec Rad 2.2uF Elec Rad 20pF Cer Disc 10pF Cer Disc1N4148 1N4746 1N4004 1N4935A2N2222 NPN MJE521 NPN 2N2907 PNP1K 1/4W 5% 1.8M 1/4W 5% 10K 1/4W 5%100K 1/4W 5% 10.0K 1/4W 1% 6.81K 1/4W 1% 7.32K 1/4W 1% 44.2K 1/4W 1% 22K 1/4W 5% 6.8K 1/4W 5% 220K 1/4W 5% 1.2K 1/4W 5% 3.9K 1/4W 5% 2.7 1/4W 5% 560K 1/4W 5% 5.1K 1/4W 5% 27K 1/4W 5% 68K 1/4W 5% 100 1/4W 5% 18K 1/4W 5% 1M 1/4W 5% 150K 1/4W 5% 62K 1/4W 5% 620 1/4W 5% 220 1/4W 5% 17.4K 1/4W 1%
CPI Part # 208-0071-103 208-2021-227 208-4042-475 208-0092-103 208-0212-333 208-0071-103 208-2031-227 208-2062-475 208-2021-107 208-2022-226 208-0071-470 208-0071-181 208-2031-108 208-4052-225 208-0001-200 208-0001-106212-0001-001 212-0100-019 212-0002-004 212-0100-008240-2222-000 212-0001-002 242-2907-000242-0001-102 242-0001-185 242-0001-103242-0001-104 242-0014-100 242-0013-681 242-0013-732 242-0014-442 242-0001-223 242-0001-682 242-0001-224 242-0001-122 242-0001-392 242-0001-027 242-0001-564 242-0001-512 242-0001-273 242-0001-683 242-0001-101 242-0001-183 242-0001-105 242-0001-154 242-0001-623 242-0001-621 242-0001-221 242-0014-174
Reference R92 R93 R98,99,110,122,124 R107,108,113,114 R112 R117 R118 R121 R128 RN1
Description 3.3K 1/4W 5% 240K 1/4W 1% 47K 1/4W 5% 120K 1/4W 5% 39K 1/4W 5% 200K 1/4W 5% 82K 1/4W 5% 12K 1/4W 5% 4.7K 1/4W 5% Resistor Network 100K x 9
CPI Part # 242-0001-332 242-0015-240 242-0001-473 242-0001-124 242-0001-393 242-0001-204 242-0001-823 242-0001-123 242-0001-472 242-0117-104
POTENTIOMETERS R38,39 R63 R75 R76,89,96 R80
1K Multi-turn Vert Adj 250K Single turn Vert Adj 5K Single turn Vert Adj 25K Single turn Vert Adj 10K Single turn Vert Adj
242-0104-102 242-0101-254 242-0101-502 242-0101-253 242-0101-103
INTEGRATED CIRCUITS U2,3,7,10,13,14 U4,5 U6,9,11 U12 U15 U16 U17
Quad Bi-FET Op Amp Audio Power Amp Quad Bilateral Switch Tone Generator Quad Low Power Op Amp Under Voltage Sensor Micro-Controller
420-L347-000 420-0380-000 420-4066-000 420-2035-000 420-0324-000 425-7757-000 425-1655-000
MISC. J2 (TR10) J2 (TR20) J3 J4 L1, L2, L3, L4 V1, V2, V3, V4 S1 (TR10) S2 T1 Y1
Handset Jack Desk Mic Jack Mod Jack Bottom Entry Header Shrouded 26 Position 150uH Choke MOV ERZC05DK 330 26V Hook Switch 8Position Dip Switch Transformer Audio 600:600 Crystal 4Mhz
228-0041-010 228-0041-186 228-0041-026 228-0101-001 232-0000-150 242-0119-241 244-0100-009 244-0002-008 246-0100-003 258-0002-002
TR series Top PCB #700-00FP-200 revision C
D1,D3
LED Green Dot
D2
LED Red Dot
R1
10K Volume Pot
LS1
8 Ohm Oval
S1,S2,S4
Push Button Switch, Black
S3
Push Button Switch, Red
X1 (DR10 & DR30)
Electret Microphone
X1 (DR40)
Gooseneck Microphone
26 position cable assembly
214-0005-002 214-0003-001 242-0115-103 234-0001-004 244-0030-000 244-0030-002 234-0002-004 234-0003-003 600-0TSR-025
7
PCB View – Control Panel #700-00FP-200Component SideR1 LS1 JP1D1 S4J1 D3
FRONT PANEL 700-00FP-200REV C
X1
S2
D2
C 1993 CPI
COMMUNICATIONS
S3 S/N
S1
J1 D3 S4D1 JP1R1 LS1
REV C 700-00FP-200 FRONT PANEL
X1
S2
D2
C 1993 CPI
COMMUNICATIONS
S/N S3
S1
Solder Side 8
A
B
C
D
E
LS1
THIS PART IS
SPEAKER
LOCATED
4
4
OFF-BOARD.
X1
ORG
BLK
WM54BT
FRONT PANEL MIC
THIS PART IS
LOCATED
R1
OFF-BOARD.
WHT GRN
10K POT
J1
3
VIO
1
2
3
3
4
5
6
7
8
PTT
9
10
11
12
13
14
VCC
S1 KS11R9MONITOR
S2 KS11R9INTERCOM
D3 LED GRN
15
16
17
18
19
20
21
22
23
24
D1 LED GRN
D2 LED RED
S4 KS11R9F1 / F2
S3 KS11R3PTT
F2
25
26
F1
PTT
CON26A
2
2
JP1
PTT 5
4
ENCODER INPUT
3
1
2
1
VCC
HEADER 5
A
B
CPI Communications, Inc.
1
TitleControl Panel – DR, LE & TR Series
Size A
Document Number
Rev C
Date: Monday, September 18, 1995
Sheet 1
of
C
D
E
9
PCB View for Main PCB #700-LEBB-200, Rev. C
C5
CPI COMMUNICATIONS,INC.
C 1994
R50
R55
U8 C45
C46 C47
C29
C1 Q1 C2
U1
R24
C18
R1C3R2 R3 R4 R5 R6Q2 C6
C4
D3 R7R8 U2
R26 R27 R28 R29D4R30 R31 R32 R33
D1D2 C7R9
C8R10 C9R11
S1R34 R35 R36R 37
R12
R13
R14
C10
U3
J2
R15
NO W NCC23 C24
C22
R51R25 C19 R53
R52
R56
C30
R57 R58 R59
C20 R54
C21
T1
R60
R61
C31
R62U9
D7D8 F1 D10C48 C51
Q4 R97C49
JU1 JU2 JU3 JU4
C32
C33 C34
J3 R63
T2
R81
C35
V1C64
L1
C65
L2
V2
L3
V3
R82 R83 R84 R85 R86 R87R88
C67
L4 C66 R76
V4
C52 Q5
R99 R100R101
U10 D12
R102 R103R104
C53 U16
C50 U15
D9 D11R98U17
TB1
Q6Q7 Y1R112
R122 R123 R124 R125
RN1
C61
R105 U12
C25 C37 C43 JU5 C44
JU8
J1
C11
R17
R16
C12
R18
R19 U4
R41
R38
C36
R39
R40
R127
C40
C39 C38R64R65 R66 R67
R77 R78R79
R89 R90S2
C55
U11 R106 R107R108 C56
JU7
R128 C58 Q8
JU9 R113R114
C54
C14 C13 C15
R20 R21
R22
C16
R42 C26R23
C27
U6
C41
R126
R74
R68 R69 R70R71 R72 R73
U7 R91
U13
C42
R92 R93 R94
R95
C57 U14
C59
R119
Q9R115 R116 J4 R117 R118 D13
R47
R120
Q3
C17
R43
C28
R44 R45
U5
R46
R49 D6
D5 R75
TR SERIES
JU6
R80
R96
700-TRBB-200
R109 R110
R111
REV C
S/N
R121
C60
Q10 Q11
C62 C63
10
1
2
3
4
5
6
7
8
R99
U10D
12
+
14
47K
13 –
VB
F1
D8
Q4 MJE520
VCC
R98
C49
LF347
47K
2.2uF
C48
C52
.1uF
100uF
+ –+ –+ –+ –
TB1
A
1
2
3
1 AMP
VOL HI
VOL LO
SPEAKER HI
MONITOR SWITCH
INTERCOM SWITCH
F2 LED
B
ENCODER INPUT
SCK
SID OUT
LATI
SID IN
SPEAKER LO
D10 D11
D9
R97
1K
C47 1000uF
C45 220uF
J4
1 3 5 7 9 11
2 4 6 8 10 12
VOL WPR PANEL/BOOM MICPTT LED PTTF1/F2 SWITCH F1 LED
13
14
15
16
17
18
19
20
21
22
VCC +10 +5 8 AUX
23
24
25
26
CON26A
D7 1N4746
C46 220uF
R119 1KR11882K D13 1N4735A
R89
RX INPUT
25K POT
3
1
R62
U10B
6
7
27K
5
LF347
VB
R117 200K
R11610KU14A 21 3LF347C58 2.2UF
+5
R115 10K
Q8 2N2907
Q9 2N2907
C57 100uF
INSTALL FOR
FULL DUPLEX
JU5
(2 PAIR)
SOLDER JUMPER
U9B
4066
11
10
U14B
5
+
7
6 –
LF347
R121
R120 10K
12K C59
.01uF
RX AUDIO
VCC
Q10 2N2222
Q11 2N2222
R111
2.7C60 .1uF
A+10C50 100uF
B
12
13 2
L4 RED150uHCC67 .01
C65
L2
.01
J3
GREEN
2
1
150uH
4
3
6
5
L3
BLACK
MOD JACK
150uH
BOTTOM
ENTRY
C66
.01
D
C64
L1
.01
YELLOW
150uH
1
2
C32 4.7uF 100VV4 ERZ-C05DK330V2 ERZ-C05DK330C334.7uF 100V 4.7uF 100VC34V3 ERZ-C05DK330
INSTALL JU1 & JU3 FOR HALF DUPLEX (1 PAIR)JU1
1 T1 8
4
5
600:600
SOLDER JUMPER R61 R61 INSTALLED 620 FOR -FD OR -4WJU3
1 T2 8
SOLDER JUMPERJU2 SOLDER JUMPERINSTALL FOR FULL DUPLEX VB (2PAIR)
V1 ERZ-C05DK330C354.7uF 100V
4
5
600:600
SW1
1
16
U11A
4066
R88
1
2
620
CONTROL 3
R8110KU10A 21 3LF347
BALANCE ADJUST25K POTR821K R83150K C51 2.2uF
VB
3
4
5
3
1
CONTROL 1
C43
R86
180pF
27K
U10C
R85
9
8
10
VB
62K
LF347
R63
R87
250K POT
R84
3
1
620
18K
2
MOD OUT
R76 2
APC DA1561|LINK |SHEET2.SCH |SHEET3.SCH |SHEET4.SCH6
C44 ENCODER INPUT.1uF CONTROL TONESCTX AUDIO
VCC
VDD
GNDCPI COMMUNICATIONS, INC.
VSS
VEE
D
TitleSize BDate:
TR SERIES TONE REMOTES Document NumberFriday, January 03, 19977
Sheet
1
of
8
Rev C4
1
1
1
VCCA
VDD GNDMONITOR SWITCH C55 .01uF
2
VSS
VEE
R107
120K
5
1
6
1
7
1
8
1
3+10
10
9
S1
+5
SHOWN OFF-HOOK
HOOK SWITCH
PTTC56 .01uF
R108 120K
INTERCOM SWITCHB
R114 120K
AUX
8
F2 LED
R123 Q61K 2N2907JU7
+10 R122 47K
4 2
1
SOLDER JUMPER
SOLDER JUMPER F1 LED
R125 Q71K 2N2907
+10 R124
JU9R113 120K
C
JU8
47K
F1/F2 SWITCH
SOLDER JUMPER
R128 4.7K
R104 +10
10K
R103
D12
PTT LED
Q5
2N2907
10K
1N4148
R102
1K
AUX PTT LED
U13A
2
CONTROL 4
1
D
3
+7.5
LF347
CONTROL 5
U14C
10
8
+
9 –
+7.5
LF347
1
2
3
+ –+ + –+ –+ –+ + –+ + –
2
1
3
1
1
4100K X 9 RN1C C53 .1uF
5R112
39K
U16TL7757 1 RST
+V 2
+10 +10
GND 3
4
28 MCLR 2 VDD
U17 +5
22 RC4 23 RC5 24 RC6 25 RC7 18 RC0 19 RC1 20 RC2 21 RC3 17 RB7 15 RB5 16 RB6
RB2 12 RB3 13 RB4 14 RB0 10 RB1 11RA0 6 RA1 7 RA2 8 RA3 9
CPIMICRO2 1 RTCC 4 VSS
CLKOUT 26 OSC 27
Y1
SW7
7
10 +10
R105 +5100K
+10
6
+7.5
R100 100K
R101 +5100K
U15B 67 5LM324U15A 21 3LM324
U15D 1314 12LM324U15C 98 10LM324U14D 1314 12LF347
7CONTROL 1 CONTROL 2 CONTROL 3
8 AB
5 12
C61 20pF
4.0MHZ
C62 +520pF
SCK SID OUT LATI SID INCONTROL TONES4
2 SCK 3 SID 4 LATIC63 10pF
VDD 7 CLK 8
1 VSS 5 VCC
U12
VOUT
C54 6.033uF
ML2035
R95
10K
R106 10K
U13C 9810
LF347 VB
+5
3
4
U11C 4066
R91 17.4K
C
10
11
U11B 4066R93
240.0K
8
9
R109
100KU13B 67 5LF347
R110 47K VB
5
1
3
R80 10K POT 2 TONE LEVELVB6
U13D
R92
13
14
12
3.3K
LF347
SW8
R94
VB
7.32K
D
CPI COMMUNICATIONS, INC.
TitleSize BDate:
TR SERIES Document NumberFriday, January 03, 19977
Sheet
2
of
8
Rev C4
1
2
3
4
5
6
7
8
C8
A
PANEL/BOOM MIC
DESK MIC BIAS
R403.9KC36 100uF
HANDSET/DESK MIC HI
B
C41.01uF R69 10KR68100R64 5.1KC40.1uF
R70 3.9KVBR65 27K
REMOVE FOR INCREASED PANEL/BOOM MIC GAIN
JU6
R47
SOLDER JUMPER 560K C42
47pF
R74
1M
VB
U7B
5
+
7
6 –
LF347
SW2
R66
2
15
68K
R67
68K
VB
U7A
3
+
1
2 –
LF347
RX AUDIO
CONTROL 5
6
R126
9
8
18K
U6D
4066
SW3
3
14
SW4
4
13
U6A
R127
4066
1
2
18K
CONTROL 4
CONTROL 3
5
1
MIC LEVEL
R75 R492 1K5K POTVB
3
CONTROL 2
6 13
NOTE: U6 IS REMOVED ON TR20, TR30 AND TR40
TX AUDIO
9
8
U9D 4066
3
4
470pF R10
100K
R37
C9
C7
R9
10K
.47uF
.1uF
10K
U2B 675
LF347 VB
U9C 4066
R36 1KR7
Q2
1K
2N2222
VB
U2A
3
1
+
2 –
LF347
+ +–
R34
100K
R35
U2C
9
8
10K
10
LF347 VB
R8 1.8M
D11N4148C6 1uF
C24.033uF R32 1K
C22.033uFR30 6.8K
C5
VB
1uF
D2 1N4148
C23.033uFR31 220K
R33
1.2K
U2D
12
+
14
13 –
COMPRESSOR OUT
LF347
A
VB
FD PATHC252.2nF R1110K U3D13 1412 LF347VB
1
3
R38 1K POT2
R1210.0KU3A 21 3LF347
+
–
R18 10.0K
2
R13
3
1
6.81KR14 10.0K
C10.01uF 1% U3B 67 5LF347
+
–
R39 1K POT .01uF 1%R157.32K
R16
C11
44.2K
B
U3C 9810
–
R19 44.2K
+
LF347 VB
SOLDER JUMPER
+ –+ –
INSTALL FOR FULL DUPLEX (2 PAIRS)
VB
VB
R17
10.0K
1
VCC
CONTROL 1
U9A4066 13JU4
C39 BEEP INPUT.1uF
C
SPEAKER HI
R43 2.7
C28 220uF8
14
U5 LM380 2 + 6 –
7
1
R44 2.7C17 4.7uF
VCCC27 .1uFR41 2.7
C16 .01uF
AUX INPUT 2
2
VB
R78
R72
10K
R96
3
R79
EARPIECE
R77
ADJUST
U6B
18K
4066
R71
U7C
+ –
10K
2
11
10
9
R73
C38
10K
8
EARPIECE
100K
10
U7D
25K POT
100
22uF
13
1
LF347
C37
14
VB
.1uF
12
VB
12
C
LF347
CONTROL 4
C14 .1uFR20 100K
VBR42 100K
C15.01uF R21 22K
R23100K R2210
5
SW6
6
11
U6C
4066
4
3
VOL HI VOL WPR
+5AUX PTT LED AUX INPUT 2 VOL HI BEEP INPUT COMPRESSOR OUTVCC
J11 2 3 4 5 6 7 8 9 10CON10
SPEAKER LO
C12 220uFC26 8220uF NP
14
U4 LM380 2 + 6 –
R45 2N2907
Q3
10K
R46
10K
D6 1N4148
CONTROL 5
VOL LO
5
7
1
D5
D
1N4148
R90 220
SW5
D
C13 4.7uF
12
VB
VCC
VDD
CPI COMMUNICATIONS, INC.
CONTROL 1
Title TR SERIES
GND
VSS VEE
Size
Document Number
Rev
C
C
Date: Friday, January 03, 1997
Sheet
3
of 4
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
C4
470pF
A
A
FD PATH
R4
100K
R6
C1
C3
R3
10K
.47uF
.1uF
10K
U1B 675
LF347 VB
+ +–
R28
100K
R5
U1C
9
8
10K
10
LF347 VB
C20.033uF R29 1K
C19.033uFR27 6.8K
C18.033uFR26 220K
R25
1.2K
U1D
12
+
14
13 –
LF347
R2
1K
C21
U1A
D3
1uF
VB
VB
R24
3
1
+
B
Q1
1K
2 –
1N4148
R1
D4
B
2N2222
LF347
1.8M
C2
1N4148
1uF
VB R53
10.0K
2
C31
R50
3
1
2.2nF R59
6.81K R52
R56
C30
1K POT
R58
C29
44.2K
.01uF 1%
3
10K
10.0K
.01uF 1%
U8C
R51
U11D
U8D
R57
9
–
C
4066
TX AUDIO
8
9
U8B 67
–
2
R54 1K POT
U8A 21
–
R55 14
–
13 12
7.32K
+
8 10
44.2K
C
+
+
+
5
3
10.0K
LF347
LF347
VB
LF347
1
LF347
VB
6
CONTROL 2
VB
VB
R60
10.0K
D 1
J2 2 1 4 3 6 5MODJACK 6BOTTOM VIEW
DESK MIC BIAS HANDSET/DESK MIC HI PTT EARPIECEMONITOR SWITCH
2
3
4
+5AUX PTT LED AUX INPUT 2 VOL HI BEEP INPUT COMPRESSOR OUTVCC
J11 2 3 4 5 6 7 8 9 10CON10
5
6
VCC
VDD
GND
VSS
VEE
D
CPI COMMUNICATIONS, INC.
TitleSize BDate:
TR SERIES Document NumberFriday, January 03, 19977
Sheet
4
of
8
Rev C4
Location of externally adjustable controls.
R89 RX InputDip Switch R96 Earpiece Adj.
Model # Serial # Assembled by Tested by Packed byCOMMUNICATIONS, INC. 1186 COMMERCE DRIVE, RICHARDSON, TX. 75081 214-437-5320 800-869-9128 FAX 214-437-5360
Mod JackR63 Mod Out R75 Mic Level
15
WarrantyCPI Communications, Inc. warrants each product manufactured by it to be free from defective material and workmanship and agrees to remedy any such defects or to furnish a new part in exchange for any part of any unit of its manufacture which under normal installation use or service discloses such defects, provided the unit is delivered by the customer to our authorized service center intact, with all transportation charges pre paid within two years from date of shipment to the original purchaser. Exceptions are semiconductors which carry only the manufacturer’s standard warranty and lamp indicators and fuses which are warranted to be operational when shipped from the factory. No credit will be given for unauthorized repair.This warranty does not extend to any of our products which have been subjected to misuse, neglect, accident, incorrect wiring not our own, improper installation, or to use in violation of instructions furnished by us nor extended to units which have been repaired or altered outside of our factory or authorized service center, nor to cases where the serial number thereof has been removed, defaced, or changed, nor to accessories used therewith not of our own manufacture, nor to finish or appearance items.This warranty is in lieu of all other warranties expressed or implied and no person is authorized to assume for us any other liability in connection with the sale of our products.Please Note: CPI products are not authorized for use in applications where nonperformance may be life threatening, or where substantial risk to life and property may be present, without express written consent of the president of CPI Communications, Inc. CPI Communications, Inc. shall never be liable for consequential or indirect damages.Notes:16
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