Motorola TLN2419A User manual

MOTOROL INC••
Communications
Sector
DIAGNOSTIC METERING PANEL
MODEL TLN2419A
FAEPS 48002 0
f80S)
Figure . Diagnostic Metering Panel - Front Vlew
1. DESCRIPTION
plifier and speaker), and a meter used to monitor the sta-
tion transmitter and receiver circuits. The meter circuit
provides five selected metering positions, as well as a
Ill-volt or a 25-volt full scale de voltmeter selected posi-
tion. The DMP also provides a station parameter status
display matrix, which permits the service technician to si-
multaneously monitor the status of up to 64 different sta-
tion operating parameters bits), as shown in Table 1.
1.1 GENERAL
The Diagnostic Metering Panel DMP) isa service option
designed specifically for the MSF 5000 series of base and
repeater stations. The DMP includes a 5-watt audio am-
©Motorola, Inc. 1990
All Rights Reserved
Printed in U.S.A.
technical writing services
1301E. Algonquin Road, Schaumburg, IL 60196
68P81114E03-D
7/15/90- U

Table l.
Station Parameter Status Display Matrix
ADDRESS D3 D2 D1 DO
0SPXMr SCAN TALM SALM
DS DS
1 RPTPTT LIN PTT LOCPTT INTCOM
2TXPLDS TX RX2ACT RXIACT
ACT··
3 RXPLDS Rl PLDT Rl SO LV RIUN
SO··
4R2MUTE R2PLDT R2S0LV R2UN
SO··
5GDTN AUXDET RPTKD RPT
DT USO··
6ACC EXDA DVPSEL DVPC/C
DIS·· DT
7
.. .. ..
Baud Rate
8TXRXC8 AUXC4 AUXC2 AUXCI
9AUXC8 AUXC4 AUXC2 AUXCl
10
.
.
.. ..
11
..
.
.. ..
12 RW40VG RW3.SYN RW2PA RWIBAT
13
RWC8 RWC7 RWC6 RWC5
14 FWC4 FWC3 FWC2 FWCl
15 FWC8 FWC7 FWC6 FWC5
.currently unassigned
.•• status only bits
These same operatingparameters may also be selectively
altered using various control switches located-on the
DMP.Also, two separate 7-segment display units indicate
(in hexadecimal notation =-$#) the current auxiliary
primary operating station channels ($1 through $F
Channell through 15, and $0 Channell).
1.2 DMP 4O-CONDUCTOR INTERFACE CABLE
The DMP comes with a separate 40-conductor ribbon in-
terface cable, a separate 8-conductor metering cable with
"modular" connectors, two separate voltage probes and
a set of housing rods that may be extended and inserted
into the mounting rails inside the station cabinet. Refer
to Figure 2 for the locations of the connectors used for
the CONTROL (11201), METER (11202), +voltage
probe (11203), and - voltage probe (11204). Refer to
Figure 3 for a view of the DMP with its front panel re-
moved.
The 40-conductor interface cable connects the station
EXPANSION connector J800 (located on the top of the
control tray housing) to the DMP CONTROL connector
J1201. This cable provides interface lines which connect
power, audio and digital signals between the station con-
trol board, other control modules within the station, and
the DMP. There are four types of signal lines provided,
as follows:
•• audio line
., dedicated logic line
., multiplexed logic (MUXbus) lines
., power and ground lines
268P81114E03
SELECT AUDIO Pin 32) - Audio line
The Select Audio signal, originating on the station control
module, is the audio input for the local speaker amplifier
circuit in the DMP. Any of the following audio signals will
be present on the select audio line when it is properly
gated by the control circuits in the station: primary receiv-
er audio, secondary receiver audio, transmit audio from
the remote wire line, and automatic station LD. and
alarm tone audio. The Select.Andio line is connected to
the wiper of the VOLUMpcontrol on the control tray
front panel. Therefore, the debias level and ac level on
the line varydepending onthe VOLUME control setting.
The DMP employs an audio power amplifier circuit to
provide up to 5watts of local service audio from the Select
Audio signal, through the DMP internal 4-ohm speaker.
The audio power amplifier circuit can be disabled with
SPEAKER ON/OFF switch S121O,located on the face of
the DMP. By connecting an optional microphone
(HMN1001) to CONTROL Jack J812 on the front panel
of the station control tray, the transmitter can be locally
keyed and modulated, or intercom with the remote con-
trol.console operator can be accomplished.
EXPANSION RE5ET Pin 12) - Dedicated Logic line
11I e.EXPANSION RESET signal is a shared logic line
whiChallows a clean, coordinated start up of the station
co:fltro1module and any other interconnected modules or
e t rnal equipment (such as the DMP). The EXPAN-
QN RESET signal is active low at power-up, or when
station control module switch S801 is put into the TEST
position, or when t station control module is reset by
its watchdog timer circuit, or when another control mod-
ule receives a command to reset the station. Also, normal
MUXbus operation is suspended while the watchdog tim-
er circuit generated RESET signal is active low. The
MUXbus data strobe line DS, is held inactive and the
MUXbus address and data lines do not follow their nor-
mal patterns.
IMPORTANT
While the EXPANSION RESET line is
active low, no module except the station
control module should write to the MUX-
bus data lines. Otherwise, the station con-
trol module may fail its self diagnostic
tests, and remain reset indefinitely.
Multiplexed Logic MUXbus) lines
The multiplexed logic (MUXbus) lines consist of the fol-
lowing signals:
Four Address lines (BAO-BA3) - Pins 13-16
•• Four Data lines (BDO-BD3) - Pins 17-20
•• Data strobe (DS) - Pin 22
All DMP MUXbus lines are referenced to audio ground
(logic ground is not used). The four address and the four
7/15/90

METER
CONNECTOR
J1202)
Figure 2. Diagnostic Metering Panel Edge View
FAEPS-36238-A
1624)
3. Diagnostic etermg Panel Internal View
data lines define 16 words of 4 bits each, or 64 total bits
as shown in Table 1. These bits form a multi-directional
digital communications path. The bus is multiplexed to
conserve interconnections (64 connections reduced to 9)
and to increase future expansion capability. The data
strobe and the four address lines are driven by the
control module. The data lines are.inverted and open col-
lector driven in both the station control module and the
DMP. This allows the station control module and the
DMP to drive the same bit in a nondestructive, wired
"OR" fashion.
The MUXbus timing diagram is shown in Figure 4. The
address lines are incremented once, approximately every
310microseconds. The address changes when data strobe
is inactive CDS = 1).The data must be valid for 1micro-
7/15/90
edge of DS. The data must be val-
the rising edge of DS. At cer-
the MUXbus maybe momentarily halted (e.g.,
halt is, in effect, an extended
strobe. The address lines will be
",AllH,d\!, Uti, WIn remam at the address of the MUXbus
to the halt. The data lines are in a "don't
a halt and may be random.
any module other than the
control does not change the state
of the station is called a "status only" bit. As an example
of a "status Transmitter Activity (IX ACT) is
activated station control module whenever the
transmitter keyed. But, if the DMP
activates TX the transmitter will not key. Thus, TX
68P81114E03
3

ACT is a "status only" MUXbus bit. All "status only"
MUXbus bits are signified in Table 1 by a double
asterisk (**).
Aoprox. 65 usee
I . Pulse Width
I I
: : Approx. 310 usee
55 ----tV: :'" i
I I I I I
i i A'o X i At, : :
I I I I I
, i sec I+- : : :
Data =:)(Dto! !Valid X Don't: ea,. X Ft':V"id ><=
iill1l-m53 I I I I I
Address
BAO-BA3
tos is Data Set Up Time: Data must be valid at least
1 mi rosecond prio to 1:5S rising edqe
tOH IS Data Hold Time: Data must be valid at least
15 microseconds after the rising edge of 5S.
Ato is any address and At 1 is the next address
Dt 0 is the data corresponding to At 0' etc.
AEPS-35788-0
Figure 4. MUXbus Timing Diagram
1.3 DMP 8-CONDUCTOR METERING CABLE
The 8-conductor metering cable connects the DMP ME-
TER Jack J1202 to either the station TX Metering or sta-
tion RX Metering Jack. The TX and RX Metering Jacks
(J413 and J21O, respectively) are both located on the sta-
tion RF Tray front panel. The PAMetering Jack (J503) is
located on the PA Distribution Board, within the station
Power Amplifier Deck. This cable provides interface lines
which connect five metering lines and a meter common
line to the DMP, as shown in Table 2.
1.4 VOLTAGE PROBES
The two voltage probes plug into two jacks provided on
the bottom edge of the DMP: RED = "+" =J1203;
BLK = "-" = J1204. Each of the probes is equipped
with a reversible blunt or pointed tip.
2. METERING FACILITIES
The DMP provides a measured indication for the signals
listed in Table 2 on a 0-50 J.l.A full-scale meter (MI201).
The proper indications are the same as those obtained us-
ing a Motorola Portable Test Set or TEK-5F Meter Panel,
as described in the MSF5000 Base Station and Repeater
Instruction Manual. A specific meter position is selected
by using the METER selector switch S1208 on the face of
the DMP. When METER selector switch S1208 is in the
"10 V" or "25 V" position, the meter monitors the volt-
age probes and is calibrated to read full-scale voltage (in-
stead of full-scale microamperes).
IMPORTA.NT
When measuringthe.power amplifier cir-
cuits, via J503, meter REVERSING switch
S1209 must be placed in the "-" (or re-
verse) position. METER REVERSING
switch S1209 is normally in the" +" (or
forward) position when the DMP is con-
nected to either J413 or J210 (TX or RX
Metering, respectively).
3. DIAGNOSTIC FACILITIES
3.1 GENERAL
The right hand portion of the DMP contains the switches
and displays required to monitor and manipulate the op-
erating parameters of the station. These functions are
made possible by connecting circuits of the DMP to the
MUXbus of the station EXPANSION connector (J800).
3.2 CHANNEL DISPLAY
The CHANNEL display consists of two 7-segment LED
packages that are used to display the station's current aux-
iliary operating channel (left-most unit) and its current
primary operating channel (right-most unit). The primary
operating channel is the channel currently selected for
the station transmitter and primary receiver. The auxilia-
ry channel may have several uses, one of which is that it
would be the selected channel of the secondary receiver
in a 2-receiver station. The operating CHANNEL display
changes each time the station changes operating channel,
or the operating channel is changed via the channel select
switch on the station control tray. The auxiliary CHAN-
NEL display changes only when a change of operating
channel occurs.
Table 2 DMP Metering Cable Interface Lines
Line DMP Meter JI202 TX Metering J413 RX Metering J210 PA Metering J503
1
Meter 1 Forward Voltage Quadrature Detector Final Stage 1
2Meter 2 Not Used I-F Level Final Stage 2
3Meter 3 Control Voltage Mixer Output Final Stage 3
4Meter 4 Not Used Reference Oscillator Predriver Stage
5Meter 5 XMTR Synthesizer Steering Line RCVR Synthesizer Steering Line Driver Stage
6Not Used GND GND Factory Test
7Meter Common GND GND A+Meter Reference
8
Not Used GND GND Factory Test
4
68P81114E03 7/15/90

3.3 STATUS DISPLAY
The Station Parameter Status Display Matrix consists of
eight 8 element LED packages located behind the re-
cessed sceened panel of the DMP. The screening identi-
fies each of 641vlUXbus bits, via a specific mnemonic des-
ignation, as shown in Thole 1.
The STATUS DisplaY.Pl ()vides a visible indication of the
major portion of the main control related activities that
are occurring at any timejn. the station. These include var-
ious push-to-talk signals, the state of the squelch circuits,
the presence of properly coded squelch signals, the sta-
tion channel, the station-level alarms and wild card
functions, as well as specialized activities such as Chan-
nel-Scan or DVP operation.
NOTE
To check to see if all the LEDs in this sec-
tion of DMP are functional, momentarily
switch the ENIER DATA-TEST switch to
the TEST position. AU 64 LEDs in the
STATUS display area should light, and the
two-digit CHANNEL display should indi-
cate $FF.
The STATUS Display indicates the active control condi-
tions within the station with a corresponding illuminated
LED. The absence of an expected condition can be readily
observed as the station is operated, leading to rapid iden-
tification of a defective area.
To simulate an active condition in the station using the
DMP, select the address or row in the display containing
the particular signal with the ADDRESS switch. Next, set
one of the data switches DO through D3 corresponding to
the column in the display containing the signal. Momen-
tarily switch the ENTER DATA-TEST switch to the EN-
TER DATA position and the condition will become ac-
tive. To clear the condition, return the data switch to the
OFF position and flip the switch to the ENTER DATA
position once again.
CAUTION
It is recommended that the DMP be dis-
connected from the control tray (via J8oo)
during station power up. This prevents the
station from being initially activated in a
possible undesirable function. However, if
the station is powered up with the DMP
connected, and an undesirable condition
does occur, place the four DATA switches
to the OFF position, and then toggle the
ENTER DATA switch. This will deactivate
the four DMP data bits applied to the
MUXbus Data Line and remove the unde-
sirable condition
7/15/90 68P81114E03
DI GNOSrrIC MErrE ING P NEL.;
An active condition is also cleared when the ADDRESS
switch is moved to a different address, and the ENTER
DATA switch is used to activate a MUXbus bit at the new
address.
For example, suppose it is desired to verify that the proper
alarm tones would be sent by the station in the event of
a PA failure. To simulate this alarm condition using the
DMP, set the ADDRESS switch to 12 (the row containing
the PA alarm signal) and flip the data switch up (for the
column containing this signal (D1). Flip the ENfER
DATA switch, illuminating the LED in the status display
for PA alarm and activating a simulated PA failure alarm.
If the station is working properly, two beeps will be heard.
If the Dl switch is turned to the OFF position and the EN-
TER DATA switch is activated, the PA alarm LED will
tum off, and the alarm beeps will cease. Likewise, if the
ADDRESS switch is moved to address 1, and the D1
switch is left in the up position, then when the ENTER
DATA switch is activated, the PA alarm LED will turn off,
the alarm beeps will cease, the LOCal PTf LED will illu-
minate, and the station will key up.
NOTE
Status only bits, when activated by the
DMP, will cause their corresponding LED
to light, but will not affect a change in sta-
tion operation. The station causes these
LEDs to light when it has successfully ac-
complished a certain function.
4. MUXBUS BIT DEFINITIONS
4.1 INTRODUCTION
The following paragraphs provide definitions for each of
the 64 operating parameters (MUXbus Bits) displayed by
the DMP. Each of these bits may have their state changed
by the DMP. Each paragraph title gives the MUXbus Bit
mnemonic, definition, and row-column address required
for access (in the form: #, D#), respectively.
4.2 SP XMIT (SPECIAL TRANSMIT) 0, D3
The SP XMIT bit indicates that the deviation and/or the
rf PA power should be either boosted or cut, defined by
information in the station control module code plug. The
default condition in the station control module code plug,
upon activation of this MUXbus bit, is deviation control.
This bit will only have an effect during a PIT. The activa-
tion of this bit, by itself, will not key the station.
4.3 SCAN (SCAN ENABLE) 0, D2
The SCAN bit forces the station control module to enable
the primary receiver as a scanning receiver. The station
must be ordered with the Channel-Scan option in order
for this feature to operate. Only the primary receiver can
scan.
5

4.4 T ALM DS (TOTAL ALARM DISABLE) 0, Dl
The T ALM DS bit mutes all alarm tones until this bit is
deactivated. This bit will deactivate the station control
module alarm bits on the Reverse Wild Card bits 1
through 4, but will not affect the other Reverse Wild
Card bits on the MUXbus. Pulsing T ALM DS for 25
msec or longer will release S ALM DS, if active.
4.5 S ALM DS (SELECTIVE ALARM DISABLE) O,DO
The S ALM DS bit is meant to support a nuisance avoid-
ance alarm feature. The console operator can mute in-
progress alarm tones without fear of missing any new
alarms. For example, initially all alarm bits (Reverse
Wild Card bits, addresses 12 & 13) and S ALM DS are
inactive. An alarm condition activates an alarm bit, and
alarm tones are heard. The wireline control pulses
S ALM DS active for 25 msec or longer in response to a
remote control console command, and the alarm tones
are muted. If the alarm condition were to disappear, the
corresponding alarm bit would be deactivated, S ALM DS
would be cleared, and no alarm tones would be heard
since no alarm bit is active. If, instead, a second alarm bit
were activated while the first alarm was active, S ALM DS
would be deactivated and alarm tones for both alarms
would be heard. The wireline control could re-enable
S ALM DS, then alarm tones for both alarms would be
muted. S ALM DS does not deactivate the MUXbus
alarm bits, but merely mutes the alarm tones.
4.6 RPT PTT (REPEATER PUSH-TO-TALK) 1, D3
The RPT PTT bit keys the transmitter, modulating with
RX 1 Audio if no higher-priority PTT is active. If a high-
er-priority PTT is active, the station control module deac-
tivates RPT P1T. If the repeater PTT time-out timer
(TOT) times out, RPT PTT will be deactivated, and the
transmitter will dekey. If repeater knock down (RPT KD)
goes active while RPT PTT is active, RPT PTT will be
deactivated, PL reverse burst or DPL turn off code RBI
TOC) will be encoded if appropriate, and the transmitter
will dekey. RPT PTT is active during repeater drop-out
delay. RPT PTT is inactive when RBITOC is encoded.
The station control module turns on RPT P1T, if repeater
audio activity exists on Receiver 1, and if RPT KD is inac-
tive, and if no higher-priority PTT is active. Repeater
audio activity is set for each channel by station control
module code plug qualifiers. These qualifiers determine
what combination of the four MUXbus bits RX P L DS,
Rl PL DT, RPT USQ, and AUX DET are ANDed to ob-
tain RPT PTf. Line, Local, and Repeater PTT priorities
are set for each channel by station control module code
plug qualifiers.
4.7 LIN PTT (LINE PUSH-TO-TALK) I,D2
The LIN PTT bit keys the transmitter, modulating with
TX Audio (inbound wireline) if no higher-priority PTT is
668P81114E03
active. LIN PTT stays active if a higher-priority PTT is ac-
tive. LIN PTT is inactive when R ITOC is encoded, un-
less the RBITOC is caused by the Line PT T TOT timing
out. If the station is so equipped, LIN PTT switches the
antenna switch to its transmit state. Line, Local, and Re-
peater PTT priorities are set for each channel by station
control module code plug qualifiers
4.8 LOC PTT (LOCAL PVSH- TO-TALK) 1, Dl
The LOC PTT bit keys the transmitter, modulating with
Local Audio if no higher priority PTT is active. LOC PTT
says active if a higher priority PTT is active. LOC PTT is
inactive when RBITOC is encoded, unless the RBIT OC
is caused by the Local PTT TOT timing out. If the station
is so equipped, LO C PTT switches the antenna switch to
its transmit state. LOC PTT is active if the PTT switch is
depressed on the local microphone plugged into the sta-
tion control module front panel CONTROL connector
J812. Line, Local, and Repeater PTT priorities are set for
each channel by station control module code plug qualifi-
ers. The front panel XMIT switch on the station control
module will activate TX PL DS and key the station with-
out activating the LOC PTT bit on the MUXbus. This key
will be without PL, DPL, or audio (silent carrier). As
thusly defined, it is not a true P1T, and can be overridden
by any other PTT
4.9 INTCOM (INTERCOM) 1, DO
The INTCOM bit is active if the remote control module
INTERCOM switch is actuated. When INTCOM is ac-
tive, the station control module treats LOC PTT as an In-
tercom P1T. Local Audio is gated to the wireline (out-
bound wireline) when a local PTT is generated, but the
transmitter is not keyed. When LOC PTT is not active,
remote control console audio (inbound wireline) is gated
to the 112-watt local audio amplifier.
4.10 TX PL DS (TRANSMIT PLIDPL DISABLE) 2, D3
The TX PL DS bit mutes encoded PL or DPL. The Trans-
mit PL Strip wireline option utilizes this bit. If PL or DPL
is being encoded when TX PL DS goes active, then RBI
TOC will be generated before muting PL or DPL. This
bit will also be set active whenever PLI DPL encoding is
disabled, such as during an auto ID transmission, or if the
front panel XMIT switch on station control module is ac-
tivated.
4.11 TX ACT (TRANSMITTER ACTMTY) 2, D2
The TX ACT is a status only bit, and indicates that the
transmit rf channel (outbound) is ready. TX ACT goes ac-
tive after a keyup, when the transmitter power output has
stabilized. In the event of a PA failure on keyup, TX ACT
stays inactive (doesn't glitch). TX ACT goes inactive
when the station control module dekeys the PA. TX ACT
is inactive during RBITOC.
4.12 RX2 ACT (RECEIVER 2 ACTMTY) 2,
The RX2 ACT bit indicates whether second receiver au-
dio should be used. The second receiver control module
7/15/90

responds to an active RX2 ACT by gating deemphasized,
PL-stripped audio from the second receiver to the RX2
audio line. From there, it is mixed with line audio (out-
bound wireline) by the station control module. RX2 Au-
dio is also mixed with select audio (local speaker) by the
station control module.
4.13 RX1 ACT (RECEIVER 1 ACTMTY) 2, DO
The RXI ACT bit indicates whether the primary receiver
has audio present with the proper qualifiers to unmute re-
ceiver audio. This condition is set for each channel by four
qualifiers in the station control module code plug. These
qualifiers determine what combination of the four MUX-
bus bits RX PL DS, Rl PL DT, Rl UN SQ, and AUX DET
are ANDed to obtain RXI ACf. The station control mod-
ule responds to an active RXI ACT by opening the RXI
audio gate. This gates RXI audio to both the line audio
(outbound wireline) and select audio (local speaker) lines.
RXI audio is also gated to the station control module re-
peater audio gate. If the station is transmitting due to a
RPT PTT, then the repeater audio gate will be open and
RXI audio will be gated, via the IDC circuit, to the TX
modulation audio line.
4.14 RX PL DS (RECEIVE PLIDPL DISABLE) 3, D3
The RX PL DS bit causes the station to revert to carrier
squelch only operation for purposes of determining status
of RXI ACT and RX2 ACf. The Monitor and Receiver
Squelch OnlOff wireline functions utilize RX PL DS.
Also, the station control module front panel PL Disable
switch activates RX PL DS.
4.15 Rl PL DT (RECEIVER 1 PLlDPL DETECT) 3, D2
The Rl PL DT bit is active when PL or DPL coded
squelch is being detected via Receiver 1.
4.16 Rl SQ LV (RECEIVER 1 SQUELCH LEVEL) 3, nt
The R 1 SQ LV bit changes the carrier squelch threshold.
When Rl SQ LV is active, the primary receiver is operat-
ing with loose squelch.
4.17 Rl UN SQ (RECEIVER 1 UNSQUELCH) 3, DO
The Rl UN SQ bit is a status only bit, and is active when
the Receiver 1 audio carrier squelch circuit on the station
control module detects activity. Rl UN SQ is used for au-
dio gating (refer to RX ACT), not for repeater keying
(refer to RPT PIT).
4.18 R2 MUTE (RECEIVER 2 MUTE) 4, D3
The R2 MUfE bit causes the second receiver control
module to attenuate the audio driving the RX2 audio line,
so that Local or RXI audio can be heard on both the line
7/15/90 68P81114E03
audio (outbound wireline) and select audio (local speak-
er) lines. The attenuation is accomplished by means of a
potentiometer on the second receiver control module.
Therefore, RX2 audio can be fully muted, if desired.
4.19 R2 PL DT (RECEIVER 2 PLlDPL DETECT) 4, D2
The R2 PL DT is active when PL or DPL coded squelch
is being detected via Receiver 2.
4.20 R2 SQ LV (RECEIVER 2 SQUELCH LEVEL) 4, D1
The R2 SQ LV bit changes the carrier squelch threshold.
When R2 SQ LV is active, the second receiver is operat-
ing with loose squelch.
4.21 R2 UN SQ (RECEIVER 2 UNSQUELCH) 4, DO
The R2 UN SQ bit is a status only bit, and is active when
the Receiver 2 audio carrier squelch circuit on the second
receiver control module detects activity. R2 UN SQ is
used for audio gating (refer to RX2 ACT). The second re-
ceiver can neither key the repeater (activate RPT PIT),
nor modulate the transmitter.
4.22 GD TN DT (GUARD TONE DETECT) 5, D3
The GD TN DT bit becomes active whenever high level
guard tone is detected from the TX Audio signal (inbound
wireline) by the tone remote control module. In stations
with an antenna switch, the station control module re-
sponds to an active GD TN DT by switching the antenna
switch to its transmit state. The TX Audio signal is muted
(on the station control module) while GD TN DT is ac-
tive, in order to prevent remote control tones from being
transmitted.
4.23 AUX DET (AUXILIARY DETECT) 5, D2
The AUX DET bit indicates that an optional decoder is
detecting. The optional decoder may be connected to ei-
ther Receiver 1 or Receiver 2 audio. AUX DET can be
used to activate TXl ACT , RX2 ACT, and RPT PIT in
a manner similar to the Rl PL DT and Rl UN SQ qualifi-
ers.
4.24 RPT KD (REPEATER KNOCK-DOWN) 5, Dl
The RPT KD bit disallows a repeater PTT. Also, this bit
forces an existing active RPT PIT inactive.
4.25 RPT USQ (REPEATER UN SQUELCH) 5, DO
The RPT USQ bit is a status only bit, and is active when
the Receiver 1 repeater carrier squelch circuit, located on
the station control module, detects activity. This bit is
used to key the repeater, not to gate audio (refer to RPT
PTT).
7

4.26 ACC DIS (ACCESS DISABLE) 6, D3
The ACC DIS bit is a status only bit, and is active when
the Access Disable station control module switch is actu-
ated. ACC DIS active indicates that the following five
functions are inhibited: 1) Auto ID; 2) Alarm tones; 3)
Time-out timers; 4) Repeater PIT initiated from the pri-
mary receiver; and, 5) Wire line commands including Line
P1T. When Access Disabled, the station operating chan-
nel is selected with the CHANNEL select switch, located
on the front panel of the remote control module. The pre-
vious station operating channel is remembered by the
station control module and reinstated when the Access
Disable switch is deactivated. If there is no remote control
module connected as part of the station (repeater only op-
eration) the DMP channel display will show $0, but the
station control module will equate this with Channell op-
eration.
4.27 EX DA DT (EXTERNAL DATA DETECT) 6, D2
The EX DA DT bit, when active, can cause the station
control module to mute TX, and/or local, and/or RXI
(Repeater) audios, under code plug programming con-
trol. This bit can allow or disallow selected mixing of these
audios with TX data audio onto the TX modulation audio
line. Which of the three audios is muted depends on
which PTT is keying the transmitter. The intent is to op-
tionally prevent audio from mixing with TX Data audio.
Whether or not mixing occurs is determined by a qualifier
for each channel in the station control module code plug.
4.28 DW SEL (DIGITAL VOICE PROTECTION
SELECT) 6, Dl
The DVP SEL bit selects either the primary VP code 1,
or the secondary VP subcode from the VP control
module.
4.29 DW C/C (DIGITAL VOICE PROTECTION
CODED/CLEAR) 6, DO
The DVP C/C bit, when active, enables the encryption
and decryption functions of the VP control module.
Therefore, voice is transmitted coded . When inactive,
this bit disables the encryption and decryption functions.
Therefore, voice is transmitted clear .
4.30 ADDRESS 7, BITS 3 THRU 0 (RESERVED FOR
FUTURE USE) 7, D3 THRU 7, DO
These parameter bits are reserved for future applications,
or special customer needs.
868P81114E03
4.31 TX RX C8, TX RX C4, TX RX C2, TX RX Cl
(TRANSMITTER/RECEIVER 1 CHANNEL)
8, D3 TURU 8, DO
and
AUX C8, AUX C4, AUX C2, AUX Cl
(AUXILIARY CHANNEL) 9, D3 TURU 9, DO
These eight bits determine up to two sets of channels for
the station. A channel is a station state which chooses pre-
defined groups of station parameters such as transmit and
receive frequencies and coded squelch code. The channel
parameters are defined in the station control module
code plug. Also, the station control module code plug
contains the transmit, primary receive, and Channel Scan
parameters. The (second receiver control module) code
plug contains the second receiver parameters. The TX/
RX Channel occupies Address 8, Bits 3-0. The Auxiliary
Channel (Second Receiver and Channel-Scan) occupies
Address 9, Bits 3-0. Optionally, the bits making up the
two channels can be re-grouped to form two different
channels, in which one channel has more. than four bits.
In this optional configuration, the TX/RX Channel least
significant bit (LSB) is at Address 8, Bit O. If more than
four bits are required to form the TX/RX channel repre-
sentation, then those bits are taken from the auxiliary
channel assignments beginning with bit 0 of address 9.
The Auxiliary Channel then starts (LSB) with the next
available bit after the last defined TX/RX channel bit and
continues to bit 3 of address 9. If the two channels are to
be independent, then they cannot share any bits. This
means that the sum of the numbers of bits for the two in-
dependent channels must be eight or less.
4.32 ADDRESSES 10 and 11, BITS 3THRU 0
(RESERVED FOR FUTURE USE)
10, D3 THRU 10, DO and
11, D3 TURU 11, DO
These parameter bits are reserved for future applications
or special customer needs.
4.33 REVERSE WILD CARD PARAMETER BITS
Use of the reverse wild card bits (8 bits total, addresses
12 & 13) requires the wild card module which resides
in the Control Option Tray. The wild card inputs (four
per card) activate or deactivate the appropriate Reverse
wild card MUXbus bit in response to a status signal ex-
ternal to the station. The eight reverse wild card MUX-
bus bits also have an additional definition. They are con-
sidered alarms which, when activated, translate to alarm
tones and are sent to the remote control console via the
outbound wireline. Optionally, the alarm tones may also
be transmitted. The alarms are tone bursts (beeps). The
four bits in Address 12 are normally defined as internal
alarms and do not require the wild card equipment.
Station conditions which the station control module mon-
7/15/90

itors cause the station control module to write to these
bits which, in tum, send the alarm tones.
NOTE
If the four internal alarm bits of address 12
are activated by the DMP, or some other
control module connected to the MUX-
bus, then the alarm beeps will be activated,
but the actual internal alarm condition will
not be simulated. For example, if the PA
Fail alarm bit (RW2 PA) were to be acti-
vated, two alarm beeps would be sent, but
the PA itself would not be forced to dekey.
The station control module code plug contains information
which determines whether an internal alarm gets written to
the MUXbus, and also if all of the reverse wild card
MUXbus bits will be enabled to activate alarm tones. Thus,
all 8 bits can be configured as external alarm inputs, if de-
sired. The maximum number of internal alarms is four.
5. INTERNAL I EXTERNAL STATION
ALARMS
5.1 INTERNAL STATION ALARMS
RW4 OVG (Reverse Wild Card Bit 4 - Bauery Overvol-
taze 12, D3
The RW4 OVG bit is the battery overvoltage internal sta-
tion alarm parameter, and is activated by the station control
module. RW4 OVG is active when the station battery char-
ger power supply indicates that the external (customer
supplied) station emergency batteries are providing too
much voltage (e.g., are overcharged).
RW3 SYN (Reverse Wild Card Bit 3 - Synthesizer Un-
lock) 12, D2
The RW3 SYN bit is the transmit or primary receiver syn-
thesizer unlocked internal station alarm parameter, and is
activated by the station control module. RW3 SYN is active
when either the transmit, primary receive, or both synthesiz-
ers are unlocked.
RW2 PA (Reverse Wild Card Bit 2 - PA Rlil) 12, Dl
The RW2 PA bit is the rf power amplifier fail internal station
alarm parameter, and is activated by the station control
module. RW2 PA is active when the rf power amplifier has
DIAGNOSTIC METERING PANEL
failed. A successful keyup or a station control module reset
is required to clear the alarm. The alarm may be active when
the transmitter is de-keyed, due to a prior failure. PA Fail
means that one or both of the station control module PA
status lines (pA On or PA Full Power) are inactive 30-45
msec after the start of a keyup, or for 30-45 msec continu-
ously during keyup, thereafter. RW2 PA is not activated by
the station control module if the PA is not keyed at full pow-
er due to the station control module personality EPROM
rf power cut option. If the station control module service
jumper (JUB01) is installed, the station control module will
activate RW2 PA regardless of the PA status lines. This is
a reminder that the rf power amplifier is operating in a non-
standard manner.
RWl BAT (Reverse Wild Card Bit 1 - Bauery Revert) 12,
DO
This bit is the battery revert internal station alarm parame-
ter activated by the station control module. RWI BAT is ac-
tive when the station battery charger power supply indicates
that the station has lost ac power and has switched to emer-
gency battery backup. RWI BAT becomes inactive as soon
as proper ac power is restored to the station.
5.2 EXTERNAL STATION ALARMS
RWC 5, RWC 6, RWC 7, RWC 8
(Reverse Wild Card Bits 5 thru 8)
13, D3 thru 13, DO
Reserved for those reverse wild card applications which
provide an interface between external station inputs and the
MUXbus. These parameters can also provide additional
alarm input capability thru information contained in the sta-
tion control module code plug, which allows these bits to be
identified as alarm inputs.
5.3 FORWARD WILD CARD PARAMETER BITS
FWC 1, FWC 2, FWC 3 FWC 4
(14, D3 THRU 14, DO) and
FWC 5, FWC 6, FWC 7, & FWC 8
(15, D3 THRU D, DO)
Use of the Forward Wild Card bits (up to 8 bits on ad-
dresses 14 15) require the wild card module (four out-
puts per card) which resides in the Control Option Tray. Re-
mote wireline control activates these bits. The wild card
control module responds by activating a relay closure or an
open collector output. These closures and/or outputs can
then be used to control equipment external to the station.
COMPUTER SOfTWARE COPYRIGHTS
The Motorola products described in this instruction manual may include copyrighted Motorola computer programs stored in semiconductor
memories or other media. Laws in the United States and other countries preserve for Motorola certain exclusive rights for copyrighted computer
programs, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted
Motorola computer programs contained in the Motorola products described in his instruction manual may not be copied or reproduced in any
manner without the express written permission of Motorola. Furthermore. the purchase of Motorola products shall not be deemed to grant either
directly or by implication. estoppel. or otherwise, any license under the copyrights. patents. or patent applications of Motorola. except tor the
normal non-exclusive, royalty free license to use that arises by operation of law in the sale of a product.
7/15/90 68P81114E03
EPS-34440-B
9

parts list
TRN5174A Diagnostic Board PL-8196'C
REFERENCE MOTOROLA
SYMBOL PART NO. DESCRIPTION
capacitor, fixed; uF ± 5 ; 50 V:
unless otherwise stated
C1201 8·11017A02 .0015
C1202, 1203 8·11017A17 0.1
C1204 21·11022K50 220 pF
C1205 23-84665F17 1500 + 100·10%; 16 V
C1206, 1207 23-84665F32 330 ± 20%; 10
V
C1208 8·11017A17 0.1
C1209, 1210 23·11019A09 1.0 ±20
C1211 8·11017A20 .0015
C1212 thru 1214 8·11017A17 0.1
C1215, 1216 21·11022K50 220 pF
C1217 8·11019A02 .0015
C1218 NOT USED
C1219 23-11019MO 47 ±20%; 25 V
C1220 NOT USED
C1221 23-83210A24 1000;20V
C1222 23-11019MO 47 ± 20%; 20 V
C1223 thru 1228 21-11021G07 .01 + 100·0%
C1229 NOT USED
C1230 thru 1235 21·11021G07 0.1 +100-0%
C1236 8-11051A16 0.33
C1237 thru 1239 NOT USED
C1240, 1241 21-11021G07 .01 + 100·0%
C1242 21-11022K50 220 pF
C1243 NOT USED
C1244 21-11022K25 20 pF
C1245 8-11017A10 .018
C1246 2H1022K25 20 pF
C1247 21·11015809 470 pF ± 10%; 100 V
C1248, 1249 NOT USED
C1250 21·11021G07 .01 +100·0%
diode: (see nole)
CR1201,1202 48-11034A01 silicon
CR1203 48-84616A09 hot carrier
CR1204 48·11034A01 silicon
display:
DS1201 thru 48-84329N01 lED ARRAY; 4-position (2 used)
1208
DS1209, 1210 48·82771 l03 7-segment display
luse:
F1201 65·82408R01 3A; 32 V
connector receptacle:
J1201 28·83835N01 male; 40·contact
J1202 9·831112N02 female; 8·contact
J1203 9·88254C03 female; slnqle-contact: coded RED
J1204 9·88254C01 female; single-contact; coded BlK
J1205 28·83143M05 male; 4·contact
coil audio:
l1201 25·82786N01 choke, 600 uH
transistor: (see note)
01210 thru 1204 48-869649 PN P; type M9649
01205 thru 1220 48·869706 NPN; Darlington; type M9706
01221 48-869653 FET, N-channel; type M9643
resistor, fixed; ± 5 ; 114W:
unless otherwise stated
R1201 thru 1204 6·11009A89 47k
R1205 6·11009A62 3.6k
R1206 thru 1212 6·11009A89 47k
R1213 thru 1216 NOT USED
R1217,1218 6·11009A89 47k
R1219 thru 1222 6·11009A56 2k
R1223 thru 1226 6·11009A23 82
R1227 6·11009A56 2k
R1228 6·11009805 220k
R1229 6·11009814 470k
R1230, 1231 NOT USED
R1232 6·11009M2 510
R1233 6-11009A84 30k
R1234 6-11009A62 3.6k
R1235 6-11009A97 100k
R1236 6-11009A56 2k
R1237 6-11009A34 240
R1238,1239 6·11009A10 24
R1240 6·1100942 510
R1241,1242 6·125870
1;1/2W
R1243 6-10621C56 4.32k ± 1%
R1244 6·10621C53 4.02k ± 1%
R1245, 1246 6-11009814 470k
R1247 6-11009805 200k
R1248 6·11009814 470k
R1249 NOT USED
R1250 6·11009A76 13k
R1251 6·11009A69 6.8k
R1252 6·11009A23 82
R1253 thru 1268 6-11009A76 13k
REFERENCE MOTOROLA
SYMBOl PART NO_
D SCRIPTION
R1269 thru 1285
R1286 thru 1289 6-11009A89
R1290, 1291 6-11009A76
R1292
R1293 6-11009A84
R1294 6·11009A49
S1201
S1202 thru 1205
S1208
S1209
S1210
S1211
U1201
U1202
U1203
U1204,1205
U1206
U1207, 1208
U1209
U1210
U1211
U1213,1214
U1215
U1216
U1217
U1218
40-84226N01
40-83685N04
40-84449N01
40·83685N06
40-83685N04
40-83685N08
51-82884l32
51-82884 L28
51-82609M73
51-83548N18
51-82884 l02
51-82884l15
51-82884L49
51-82609M61
51-84371 K83
51-83629M86
51-82609M05
51-84320A47
51-83627M88
51-84561 L86
NOT USED
47k
13k
NOT USED
30k
1k
switch:
rotary: 16-position
toggle; spdt
rotary; 7-position; 2 pole
toggle; dpdt
toggle; spdt
toggle; spdt
integrated circuit: (see nole)
4-bit latch & 4-to-16 line decoder
dual monostable multivibrator
quad D-type tllp-flop with clear
BCD-to-HEX 7-segment latch-decoder-
driver
hex inverter buffer
quad latch
quad exclusiveOft gate
dual 5-input NOH gate
quad 2-input NAND gate
audio power amplifier
operational amplifier
5-voll regulator
level shifter
5-volt regulator
mechanical parts
36-83144N01 KNOB, control; 2used
9-82425R01 FUSE, holder
note: For optimum performance, diodes, transistors, and integrated circuits must
be ordered by Motorola part numbers.
TKN8914A Diagnostic Cabling Kit PL·8430-0
REFERENCE MOTOROLA
SYMBOL PART NO. DeSCRIPTION
P1203
P1204
P1205
28-84751 N01
28-84751 N02
15-83142M08
connector, plug:
male; sinqle contact (RED)
single contact (8lK)
4-contact
1·80766D37
39-82717MOI
1-80766047
10-82465802
29-82676C02
1-80766D48
10-82465801
29-82676COI
receptacle; 4used
(RED);
includes
eludes:
P1204,
WIRE,
PROBE, 36" used
THN6486A and Hardware Kit Pl-8197-8
SYMBOL PART NO. DESCRIPTION
lS1201
M1201
W1201
W1202
speaker:
50-84450N01 4 ohm; 5 W; 3"
meter:
72-83319GOI 50 uA
cable, assembly:
30-83941 N02 40-conductor; includes: connectors
30-84225N02 8-conductor;includes: connectors
mechanical paris
2·10101A91
3-10907A10
3-83498N03
3-83498N12
3·83938N01
4-84180C01
7-83830N01
14-83022POl
14-84268AOI
15-83826N01
15-83827N02
42-10128A14
42-10217 A02
42-82143C09
47-84568N01
47-84568N02
75·82230B 14
75-84215A03
NUT, spring; 4 used
SCREW, machine; M2.5 x 0.45 X6mm;
2used
SCREW, tapping; M3.5 x 0.6 x 13mm;
4used
SCREW, tapping; slotted star; 3 used
SCREW, self retaining; 10-32 x 1-1/8 ;
2used
WASH ER, shoulder; 3 used
BRACKET, meter
INSULATOR, board
INSULATOR, transistor; 3 used
HOUSING, top
HOUSING, bottom
RING, screw retaining; rubber; 2 used
STRAp, tie; .091 X 3.62 (WHT); 2 used
cable
mounting; right hand
mounting; left hand
rubber; 2 used 4 used

JI204
B
PROBE-V
JI203 El
PROBE-t-V
ICONTROLI
PIO
Jt201
SELECT 32
AUDIO
H'
2
3
4
5
AUDIO GND{
8
9
10
LOGIC GND 21
Rt248 RI293
470K 30K
RI247
200K
ffi]
REVISIONS PEPS-36253
REE
ISSUE KIT SYMBOL CHANGE LOCATION
ATRN5174A C1229 DELETED SCHEMATIC,
CI233 thru 1236 WERE: 0.1 uF; PARTS LIST
&
21-11021G04 PCB
CR1203 WAS: 48-1 1034AOI
DS1209, 1210 WERE: 48-82771LOI
R1219 thru 1222 WERE: 510 OHMS;
6-11009A42
R1227 WAS: 6.8k; 6-1 1009A69
R1243, 1244 WERE: 3.6k; 6-1 1009A62
R1294 ADDED
KNOB 36-83144NOl; 2-ADDED PARTS LIST
THN6486A F1201 ADDED PARTS LIST
INSULATOR 14-83022POl; ADDED
KNOB 2-DELETED
RING WAS: 42-82234GOI
0.1 30K
B
I
SW1209A
8
11
METER
I
REVERSING
1
SWITCH
I
[]I
1
I
SWI209B
EJ
BUFFER
AMPLIFIER
I
CI247
lOOK
r SWi20BA
I IMETER I
POSITION
SWITCH
OJ
l-- -----------;:-'
470PF
RI235
51210
ISPEAKER I
ffiJ
SWi208B
CI214 RI233
RI229
470K
RI234
7
RI241
I
3.6K
SELECT AUDIO
1-- _-+- /3 .8 V'__'\.FI:.=2:=0:.1_ .•••._ L 12 O I::-..,.:-'"
..•. A
3A 600UH ICI221
1000
N,C.
FUSED A++
1-- -+ TO DIAGNOSTIC
AND CONTROL
SECTION
3UI218
5V
VB
+±CI222
47
-::1:-
2
5-VOLT REGULATOR
-::1:- AUDIO GNo
--..- AUDIO SIGNAL PATH
-Q THEORY NOTE
OUTPUT LIMIT
PROTECT CIRCUIT
I
I CONTROL I
JACK
1
.
2
•
}A
3•.4
• • 6
7 • • 8 } AUDIO GND
AUDIO GND{ 9 • • 10
N.C. II •• 12 EXPANSION RESET
BAlli 13 •• 14 BAI
BA2 15 •• 16 BA3
17 •• 18 B5I
tlm 19 • • 20 BD3
LOGIC GND 21 • 22 OS
N_C. 23 •• 24 N.C
N.C. 25 •• 26 N. C.
N.C. 27 •• 28 N. C.
N.C. 29 •• 30 N. C.
N C. 31 • • 32 SELECT AUDIO
N:C. 33 " • 34 N.C.
N.C. 35 •• 36 N.C.
AUDIO GND 37 • • 38 N. C.
N. C. 39 • • 40 AUDIO GND
JI201
lPIN VIEW)
RI236 CI203
2K
RI232
510
0.1 CI215
1220PF
CI245
f . B
NOTE:
TLN2419 DIAGNOSTIC
METERING PANEL
SCHEMATIC DIAGRAM AND PARTS LISTS
1. Unless otherwise specified, all resistor values are in ohms. and all capacitor
values are in microfarads.
_--::-c:- -----'I...n,,'e:=gratedCircui 'O-"- h-"_r' _
Ref. Audio
Desig. A + Gnd Description
U1213 5 3 Power Amplifier
U1214 5 3 Power Amplifier
U1215 Vc = 4 11 OuadDiffere ntial-Input Operational Amplifier
U1218 5-Volt Regulator: Pin 1 = 5 V; Pin 2 = Audio
Gnd; Pin 3 = Fixed A +
----
BRIDGE POWER
AMPLIFIER
!
INTERCONNECT
JACK LATCH
4
Cf205
+f5 .• II --
BLK
LSI201
5W, 4 OHMS
RED P1205-4
Jf205-4
IMETER I
JI202
METER 5 5
METER 4 4
METER 3 3
METER 2 2
METER I
METER COMMON 7
NOT USED 6N.C.
NOT USED 8N.C.
METER + f!lll
METER - IIIi
SPEAKER - IiII
SPEAKER + 4 l1li
RI238
24
PROTECTION CIRCUIT WILL LIMIT SPEAKER
OUTPUT TO LESS THAN 7W BY ATTENUATING
INPUT SIGNAL. CIRCUIT WILL NOT BEGIN
ATTENUATING UNTIL AFTER 5 WATTS OUTPUT
HAS BEEN ACHIEVED.
./f CI210
1_-2-+II----
CRf203
01221
M9653
DGRI246 CRI204
470K
SRI245
470K
C1211
VB
-e-
-=
.0015
C1242
220PFI
A+
RI237
240
RI239
24
RI244
4.02K
1+ 5
CI20B
J0.1 A+
RI243 C1209
+
CI246 4.32K
20PF RI250 VB
13K
4
Rf242
I
DEPS-35229-A
CI213
0.1
JI205
(PIN VIEW)
J1202
lFRONT VIEW)
J
I 2
3 4
5
6
C
IMETERI
JACK
NOT USED
METER COMMON
NOT USED
METER 5
METER 4
METER 3
METER 2
METER 1
4-22-88 68P81114E03
UNUSED CIRCUITS
13

r-::bUS WRITE CIRCUITRYTLN2419A DIAGNOSTIC
METERING PANEL
SCHEMATIC DIAGRAM
NOTES:
I
I
ADDRESS TRUTH TABLE
I
PQS I T I ON A3 A2 AI
Art
0 o a 0 0
o 0 0
I
0 0
I
0
I
0 o I
o I o a
a I
0 I
a I I
a
I
a II
I
a a a
I
a a I
10
I a I
a
I
II I
a I
12 100
13
I I
0
I
14 I
I I a
L
15
I I I I
1. Unless otherwise specified, all resistor values are in ohms and ali capacitor
values are in microfarads.
Integrated Circuii Data Chart
Ref. Logic
Desig. 5V Gnd Description
U1201 24 12 4-Bit Latch & 4·Line·to·16·Line Decoder
U1202 16 8 Dual Monostable Multivibrator
U1203 16 8 Quad D-Type Flip-Flop With Clear
U1204, 5 16 8 BCD-to-Hex 7-Segment Latch-Decoder-
Driver
U1206 16 8 Inverting Hex Buffer
U1207, 8 16 8 Quad Latch
U1209 14 7 Quad Exclusive-OR Gate
U1210 14 7Dual 5-lnput Positive-NOR Gates, With
Totem-Pole Outputs
U1211 14 7 Quad 2-lnput Positive-NAND Gates, With
Open-Coli ector Outputs
U1216
--
5-Volt RegUlator: Pin 1 = Fused A +; Pin 2
= Logic Gnd; Pin 3 = 5 V
U1217 1,13,16 8 TTL-or CMOS-to-CMOS Hex Level Shifter
IADDRESS I
SELECT
SWITCH
S1201
DATA SELECT
5V SWITCHES
S 1202
I S1203
I B
S 1204
[D2J
51205
B
Refer to Address Truth Table
'for switch output states.
+ 5V
+ 5V
0-
RI204 RIZ03 RIZ02
47K 47K 47K
SELECTED
DATA LATCH
6
0-
o¢ POL
sOjj
00 o¢
01
ID
SOl
01 01
02 13 U1207
II
S02
02 02
03 I.
03 03 SD3
eLK
+5V
B
o
IT] A01-' '-£>---
o
o A I 2
0[;]
SELECTED DATA
REGISTER CIRCUIT
U1Z03
O¢
01
12 02
13 03
I9 eLK eLR
o
EJo
o 0
A2
0
0
0
0
A3 4
[8]
COM
5
o
o
SA3
FUSEDA+ + >--- '-1
BA3
U1209C:»,,1 O'------B -
From mo lng euato and power section.
U1Z18 I JO"----!'l -----''''''-
Ul211AIj!)"----!'l ----f!""-
Whon swlfch S1
Dat« Display LIl
(Q1201 thru Q1;'
ena operatlnQ (,
Simultaneously,
U1201 (1.lp&0Ied
Chf§S (01205 tnr
LED's of the s
(D 1201 thru D
i5?l
-
6
01
02
II
03 14
00
011-'-- [O>-----
Q2 10
031-'-"5'--[0>----_
o
R1255
13K
I
4- BIT LATC H B\
JJ
4- LINE - TO-16- LINE
DECODER
SA A0 5¢
II
51
SAl
3
10
AI S2
53
SA2 21 54A2
S5
8A3 22 A3 S6
S7
58
18
U1201
59 17
20
RI263
SID
13K
23 51
j
INHI BIT
+ SV
R1212
47K
,,,,,.o { U12028
-0
12
Q 10
37
40
I
>4.9 MS
MONOSTABLE
L
R1206
D5
OS
22 47K
U1217A
PIO
J1201
r
R1208
10 SA¢
13 47K
U1217D
14
R1209
BAI
MUXlw/>
o B8AA
Address
47K
U12178
Lines Rt210
14 IS
BA2
15 47K
U1217F
RI211
11 12 BA3
t>-
BA3 16 47K
U1217E
R1207 EXPANSION RESET 14 15 EXPANSION RESET
EXPANSION RESET 12
0
47K
U1217C
14 68P81114E03 2-12-88
3.4
MONOSTABLE lelch MUXbus
Rt266
and
into

SE LECTED DATA
REGISTER CIRCUIT
leered data} of Dala
s $1202 thru 51205 V
3) is entered into r-- ----B>- ---"--r-")
i a c:'u :: 7fOW U121B1)c"'---;:>- --!!l1l!.
osition. The/arched
n on the MUXbus
vnen U1210B·6 goes
01
10 Ul211C lO''--t>-
12
+5V
R1218
47K
09 "- -t>- ___,
RESS COMPARATOR CIRCUIT
09C;'JC>,,,,0 --£;>---l
13 U12110 »"-'-'-t>- _
J
4-81T LATCH SO
4- LINE - TO-16- LINE
DECODER
SA A 8¢ 11
81
SAl 3 10
Al 82
83
BA2 21 A2 84
85
BA3 22 A3 86
87
8B IB
Qi3r-- ---------------------------------------- ------------
Qll--"- __j)>- -+-------------,
Q2 11
Q3 14
QOfL-__j)>-----------------------------------------------,
Ql!--!--__j)>-------------- -----------------------___,
02 10
Q3 15
[}
LED 5-VOLT
SWITCHES
(Q1201-QI204)
R1222
U1203
O¢
01
12 02
13 03
9ClK ClR
When .wltch S1211 Ja actuated to TEST position, MUXbu'
Dat. Display Latch U1203 forces 811LED 5-voft swItches
(01201 thru Q12CU) on, lind causes thct auxiliary (DS1210)
and o".,atlng (DS1209) channel displays to Indlc,t. $F.
SimultaneouSly, 4-blt 'slch &4·Lln8-fo-16-Llne Decod.,
U120f fePHt&dly ripples through the LED ground swit-
ch •• (01205 th,u QI220). Theso two actfons ceuse all 64 0
LED's of the station parameter status display matrix
(D51201 thru 051208) to light.
R1223
82
Rt224
82
R1225
82
Q1202
M9649 Q1203 M9649
Q1201
M9649 RI221
R1219 RI220
2K 2K
2K
2K
o
U1203 Decodes and latches
MUXbus data lines
R1253
13K
R1255
13K
Q1207
M9706
R1256
13K
R1258
13K Q1210
M9706
R1259
13K
R1260
13K
LED
GROUND
SWITCHES
(Q1205 - Q1220)
17
015
R1261
13K
R1263
13K
Q1215
M9706
Provides pulse to latch AWXbus Addrfflss end Data Into
U1201sndU1203.
R1264
13K
R1266
R1267
Latches and
decodes MUXbus
address lines
13K
Q1218
M9706
13K
R1268
13K
STATION PARAMETER STATUS DI SPLAY MATRIX
89
Q1204
M9649
4
+5V
RI289
47K
88
R1226
82
10 9 6 5
03 02 0\ O¢
UI204
PfO
J120!
17
'"J
18 SOl
¢
IAUXbu.
O.t.•
19
'802
Un.!
20 803
ABCOEFG
12 13 14 15 1 2 3
10985423
ABCoEFG
_A _
COM
DS12iO
AUXILIARY
CHANNEL
DISPLAY
+5V
U1201
RI212
89 17
47K
810 20
When HI, all
outputs low
0
23 811 19
INHIBIT
U1206A
14
3
CD
7
I
13
Q
813
U1202A
1-
814 16
STROBE
15
+ 5V
CR120!
R1290
13K
CLOCK
PULSE
C1240
.01
I
I
89
.,
12
I
U1206E
11
89
Clock Pulse generating
Circuit used to latch aux
iliary channel number
data into U1204, See
Channel Display Timing
Diagram
R1288
47K
R12B7
47K
R1286
4':"K
6 5
ABC' 0 E F G
12 13 \4 15 1 2 3
03 C2 01 o¢
U1205
COM
+ 5V
CR1202 I
!
R1291
13K
CLOCK
PULSE
C1241
.01
88
10
U1206D J
88
LEGEND:
THEORY NOTE
LOGIC GND
---&>-- CONTROL SIGNAL
BCD-TO- HEX
7-SEGMENT
LATCH-DECODER -
DRIVER
CHANNEL DISPLAY TIMING DIAGRAM
I I
S80RS9
- - I
SB OR 89 LLs--
ClOCK .
PULSE' V!
I !
I' I
LOAD LATCH
DS1209 DATA DATA
OPERATING
CHANNEL
DISPLAY
UNUSED CIRCUITS
" U12068
7"'--.6
Clock Pulse generating circuitu,sed
to latch operating Channel number
data into U1205, See Channel Display
Timing Diagram

TLN2419A DIAGNOSTIC
METERING PANEL
CIRCUIT BOARD DETAIL
C1206 C1207
.....jf-:;:<> .. .
UI214
ui213
C1221
CI205
+
+
51208
NOTE I)
J12 4
BLK
v
SIDE SHOWN FROM COMPON ENT SIDE
COMPONEI
SOLD
12
68P81114E03 2 12 88

COMPONENT SIDE
SOLDER SIDE BD-EEPS
BD-EEPS -36182-B
OL_EEPS-36183-B
-36184- B
A
A 3
A 5
AUDIO GND 7
AUDIO GND 9
NOT USED 11
BAIll 13
BA2 15
BDIll 17
BD2 19
LOGIC GND 21
NOT USED 23
NOT USED 25
NOT USED 27
NOT USED 29
NOT USED 31
NOT USED 33
NOT USED 35
AUDIO GND 37
NOT USED 39
RESET
16 BA3
18 SOl
C B E
U
Q1201 THRU Q1220
20 BD3
22 OS
24 NOT USED
26 NOT USED
28 NOT USED
30 NOT USED
32 SELECT AUDIO
34 NOT USED
36 NOT USED
38 NOT USED
40 AUDIO GND
o I-
Z Z :::>
3 2 1
U1218
METER 1OJ12022 METER
METER 3 3 4 METER 4
METER 5 5
METER COM 6 NOT USED
MON 7 8 NOT USED
DS1209.DS1210
§[J
A
GND 0 4 OUT
3 GND
2 IN-
1 IN
U1213.U1214
NOTES'
L THE BOXED
SCHEMATIC , BERS CORRESPOND
TO SWITCH RAM.•••••• AND "a" TO THE
RESPECTIV yEGMENT S120SA AND CORRESPOND
. S1208S.
m
JI2105METER +
2 METER-
3 SPKR-
4 SPKR +
BASE ETAILS
TOP VIEWS
Q1221
(K)
051201 TH
(SEE DETAI U 051208
SELOW)
NOT USED
COM K
GND
I 2 3
IN OUT
GND
UI216