BROADCAST
TRANSMITTERS
DEDICATED TO THE CONTINUED SUPPORT OF RCA BROADCAST TRANSMITTERS
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DEDICATED TO THE CONTINUED SUPPORT OF RCA BROADCAST TRANSMITTERS
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KITS THAT ARE APPLICABLE TO ALL G-LINE TRANSMITTERS.
MI-563392-1 DRIVER POWER SUPPLY SOFT START KIT.
DATE ISSUED - 4/16/80 PURPOSE -
ENSURES THAT CIRCUIT BREAKER DOES NOT TRIP WHEN REPEATED SHORT TERM POWER
INTERRUPTIONS OCCUR. THIS KIT
INSTALLED A SOFT START A500 PC BOARD IN THE POWER SUPPLY. MI-563392-2 NOT ISSUED MI-563392-3 HYBRID AMPLIFIER HEAT SINK KIT.
DATE ISSUED - 10/15/80 PURPOSE -
THIS KIT WAS DESIGNED TO PREVENT THE HYBRID AMPLIFIERS AT THE OUTPUTS OF BOTH
THE VISUAL AND AURAL OUTPUT MIXER BOARDS FROM OVERHEATING. MI-563392-4 AURAL AIR PRESSURE METER.
DATE ISSUED - 10/8/80 PURPOSE -
THIS KIT REPLACED THE AIR PRESSURE METER FROM 0 -20" TO 0 - 10" SO
THAT A MORE ACCURATE READING COULD BE TAKEN. MI-563392-5 NOT ISSUED MI-563392-6 FILAMENT SUPPLY MODIFICATION FOR
220V/50HZ.. DATE ISSUED - 11/18/80 PURPOSE - TO
MODIFY THE TRANSFORMERS IN THE COMBINED VISUAL AND AURAL FILAMENT POWER SUPPLY
TO ALLOW OPERATION WITH 220 VOLT, 50 HZ AC MAINS INPUT. MI-563392-7 VSWR / POWER METERING FILTER KIT.
DATE ISSUED - 1/15/81 PURPOSE -
THIS KIT IS USED TO PREVENT INTERACTION BETWEEN THE VISUAL AND AURAL POWER
METERS AND IS TO BE USED IN CONJUNCTION WITH EITHER MI-563235-5 OR MI-563235-5A
VSWR INDICATOR MODULE. MI-563392-8 PARALLEL SYSTEM LOSS OF VIDEO KIT.
DATE ISSUED - 3/6/81 PURPOSE - TO
PROVIDE THE MEANS OF REDUCING THE OUTPUT POWER OF BOTH TRANSMITTERS IN A
PARALLEL SYSTEM TO A SAFE LEVEL WHEN A LOSS OF VIDEO IS DETECTED IN THE ACTIVE
EXCITER. MI-563392-9 VIDEO/SYNC GAIN CONTROL FOR PARALLEL
SYSTEMS. DATE ISSUED - 4/15/81 PURPOSE - TO
PROVIDE THE CAPABILITY TO REMOTE CONTROL THE "ON AIR" VIDEO AND SYNC
GAIN IN A PARALLEL SYSTEM. MI-563392-10 SOLID STATE AMPLIFIER CONNECTOR
REPLACEMENT KIT. DATE ISSUED -
5/1/81 PURPOSE - TO
REPLACE THE AMP HIGH CURRENT CONTACTS IN THE BLACK AMP CONNECTORS WITH THE NEWER
MORE RELIABLE TYPE. MI-563392-11 TORQUE SCREWDRIVER, TRANSISTOR
MOUNTING. DATE ISSUED - 5/3/81 PURPOSE -
PROVIDE A TORQUE SCREWDRIVER TOGETHER WITH INSTRUCTIONS ON REPLACING AMPLIFIER
BOARDS WITHIN THE PRE‑TUNED UNITS SUCH AS THE 400 WATT AMP, THE PREDRIVER
AND THE AURAL AMPLIFIERS. MI-563392-12 PARALLEL SYSTEMS TEST KIT.
DATE ISSUED - 8/7/81 PURPOSE - TO
PROVIDE THE MATERIAL AND INFORMATION NECESSARY TO PERMIT THE TESTING OF ONE SIDE
OF A PARALLEL SYSTEM WHILE THE OTHER SIDE IS ON THE AIR. MI-563392-13 LOGIC & POWER LINE TRANSIENT
PROTECTION IN SCREEN PS's. DATE
ISSUED - 8/25/81 PURPOSE - TO
PROVIDE BOTH THE AC INPUT AND THE DC LOGIC INPUT WITH TRANSIENT PROTECTION.
INSTALLATION OF THIS KIT CONVERTS AN MI-563209A (VISUAL) TO AN MI-563209B
AND AN MI-563210A (AURAL) TO AN MI-563210B. MI-563392-14 LOGIC PROTECTION & VOLTAGE CHANGE
KIT IN AURAL BIAS SUPPLY. ISSUED -
8/25/81 PURPOSE -
SAME AS ABOVE KIT BUT FOR THE AURAL BIAS SUPPLY.
INSTALLATION OF THIS KIT MADE AN MI-563211A INTO AN MI-563211B. MI-563392-15 LOGIC PROTECTION & SINK/SOURCE
IMPROVEMENT KIT. DATE ISSUED -
10/20/81 PURPOSE -
SIMILAR TO ABOVE KIT BUT FOR VISUAL BIAS SUPPLY USED IN 17H AND 16L
TRANSMITTERS. INSTALLATION OF THIS
KIT MADE AN MI-563207A INTO AN MI-563207B. MI-563392-16 LOGIC PROTECTION & SINK/SOURCE
IMPROVEMENT KIT. DATE ISSUED -
10/20/81 PURPOSE -
SAME AS ABOVE KIT BUT FOR VISUAL BIAS SUPPLIES USED IN THE 30H AND 30L
TRANSMITTERS. MI-563392-17 CONTROL LOGIC POWER SUPPLY PROTECTION
KIT. DATE ISSUED - 7/2/81 PURPOSE - TO
REDUCE VOLTAGE SPIKES TO SAFE LEVEL BY INSTALLING A METAL OXIDE VARISTOR ACROSS
THE PRIMARY WINDING OF THE CONTROL LOGIC POWER SUPPLY TRANSFORMER T2 IN THE
POWER SUPPLY CONTROL CABINET. MI-563392-18 AURAL CARRIER SHUTDOWN KIT. DATE
ISSUED - 7/20/81 PURPOSE - TO
PROVIDE A MEANS OF TURNING OFF THE AURAL CARRIER IF THE VISUAL CARRIER
SYNTHESIZER, OR THE VISUAL IF SYNTHESIZER, OR THE AURAL IF SYNTHESIZER BECOME
UNLOCKED. THIS KIT IS NOT REQUIRED
IN PARALLEL SYSTEMS. MI-563392-19 VIDEO TRAY HOLD DOWN KIT. DATE ISSUED
- 7/21/81 PURPOSE -
THIS KIT IS DESIGNED TO PREVENT THE PC BOARDS IN THE VIDEO TRAY FROM BECOMING
LOOSE BY MECHANICALLY SECURING THE BOARDS IN PLACE. MI-563392-20 SOLID STATE AMPLIFIER RF CONNECTOR
MAINTENANCE KIT. DATE ISSUED -
6/29/81 PURPOSE - TO
ENSURE THAT THE RF INPUT AND OUTPUT CONNECTORS ON BOTH HIGH AND LOW BAND 400
WATT AMPLIFIERS ARE SECURED PROPERLY AND THAT THE SOLDERED CONNECTIONS ARE GOOD.
ALSO, TO CHECK IN THE 400 WATT LOW BAND AMPLIFIERS THAT THE BALUN COIL
ASSEMBLIES HAVE NOT BROKEN LOOSE FROM THE GROUND PLANE OF THE PC BOARD. MI-563392-21 PLUS
AND MINUS 15 VOLT POWER SUPPLY KIT. DATE
ISSUED - 7/6/81 PURPOSE - TO
ASSURE STABLE OPERATION AT ALL TEMPERATURES, CURRENT AND CURRENT LIMIT
CONDITIONS. THIS IS ACCOMPLISHED BY
REMOVING CAPACITOR C10 (10MFD, 16VDC) FROM THE +15V SUPPLY.
IN THE -15V SUPPLY IT INVOLVES CUTTING THE CIRCUIT TRACE AT A PARTICULAR
POINT AND ADDING A 1 OHM 11 WATT RESISTOR. MI-563392-22 SCREEN SUPPLY CUTOFF KIT.
DATE ISSUED - 7/24/81 PURPOSE - TO
PREVENT SCREEN SUPPLY OUTPUT VOLTAGE LEAKAGE AND TO ELIMINATE FALSE TRIGGERING
CAUSED BY NOISE INDUCED INTO THE SUPPLY'S CONTROL LINE. THIS WAS INITIALLY A KIT THAT WAS INSTALLED ONLY IN
TRANSMITTERS OPERATING WITH 480V AC INPUT LINE VOLTAGE.
WHEN THE C VERSION OF THE SCREEN SUPPLY CAME OUT IT WAS NOT REQUIRED IN
ANY TRANSMITTERS SINCE THE ON/OFF CONTROL WAS BY A MECHANICAL RELAY.
IT WAS NOT USED OR NEEDED IN THE 35H OR 50H.
SINCE IT WAS NOT REQUIRED IN ALL TRANSMITTERS, IT WAS NOT ISSUED AS A
KIT. MI-563392-23 LUMINANCE LINEARITY CORRECTOR KIT.
DATE ISSUED - 8/11/81 PURPOSE - TO
CORRECT FOR LOW FREQUENCY LUMINANCE LINEARITY ERRORS INCURRED THROUGH THE
SYSTEM. THIS WAS INITIALLY DESIGNED
FOR THE 50H AND 35H TRANSMITTERS SINCE THOSE SYSTEMS PRODUCED MORE OF AN ERROR
IN THIS AREA. IT WAS DECIDED NOT TO
PUT THIS OUT AS A KIT, ONLY AS AN UPGRADE ON ALL FUTURE TRANSMITTERS.
IF YOUR TRANSMITTER WAS PURCHASE EARLY IN 1982 IT WOULD HAVE THE
CORRECTOR IN PLACE IN THE VIDEO TRAY. THE VIDEO TRAY WOULD BE AN MI-563111A, NOT
AN MI-563111. MI-563392-24 NOT
ISSUED MI-563392-25 PLATE SUPPLY COOLING MODIFICATION.
DATE ISSUED - 10/15/81 PURPOSE - TO
PROVIDE GREATER AIR FLOW ACROSS THE PLATE TRANSFORMER ON THE HV POWER SUPPLY.
I BELIEVE THIS KIT WAS ONLY PUT ON 30 KW UNITS AND ONLY IF THEY WERE
OPERATING AT FULL OR NEAR FULL POWER. IT
DID NOT GET INSTALLED AS A KIT ON THE 17 AND 16 KW TRANSMITTERS AND IS NOT
APPLICABLE TO THE 35 AND 50 KW UNITS. MI-563392-26 CONTROL INPUT PULL UP RESISTOR.
DATE ISSUED - 3/17/82 PURPOSE - TO
ADD A PULL UP RESISTOR BETWEEN U29 PIN 11 AND THE +5 VOLT SUPPLY ON THE CONTROL
INPUT MODULE MI-563261-1. MI-563392-27 VSWR RESET KIT. DATE ISSUED - 6/30/82 PURPOSE -
WHEN INSTALLED, THE VSWR RESET KIT PROVIDED THE CIRCUITRY NECESSARY FOR
RESETTING THE DRIVER CONTROL CIRCUIT AUTOMATICALLY UNDER THE CONTROL OF THE
COUNTER CIRCUITRY IN THE POWER SUPPLY/CONTROL CABINET.
THE VSWR RESET KIT IS INTENDED FOR USE BY ITSELF OR AS A PART OF THE
CONTACTOR CONTROL KIT MI-563392-28. MI-563392-28 CONTACTOR CONTROL KIT.
DATE ISSUED - 7/1/82 PURPOSE -
THIS KIT CONNECTS A THREE-PHASE AC CONTACTOR IN SERIES WITH THE AC INPUT TO THE
DRIVER POWER SUPPLY. WHEN AN
OVERVOLTAGE FAULT OCCURS IN THE DRIVER POWER SUPPLY, A VOLTAGE IS DEVELOPED
ACROSS THE RESISTOR IN SERIES WITH THE CROWBAR SCR AT THE OUTPUT OF THE SUPPLY.
RELAY K3 ON THE VSWR RESET MODULE ENERGIZES WHICH DISCONNECTS THE AC
INPUT TO THE AC CONTACTOR, THUS ENERGIZING THE CONTACTOR FOR A PRESET TIME. MI-563392-29 SYNTHESIZER STABILIZATION KIT.
DATE ISSUED - 6/23/82 PURPOSE - TO
IMPROVE THE PHASE NOISE CHARACTERISTICS OF EITHER THE LOW BAND VISUAL
SYNTHESIZER MI-563121 OR THE HIGH BAND SYNTHESIZER MI-563123. ALSO TO IMPROVE THE FREQUENCY VS TEMPERATURE CHARACTERISTICS
OF THE AURAL EXCITER MI-563122A/B. MI-563392-30 THERMAL PROTECTION KIT.
DATE ISSUED - 9/28/82 PURPOSE -
PROVIDES INSTRUCTIONS AND MATERIAL TO CONNECT THE THERMAL SENSORS WITHIN THE
PLATE TRANSFORMER IN PARALLEL WITH S3 "TEMP HI" SENSOR INSIDE THE
POWER SUPPLY/CONTROL CABINET. ALSO
PROVIDES INSTRUCTIONS AND MATERIAL TO CONNECT THE COOLING FAN MOUNTED ON TOP OF
THE HV POWER SUPPLY INTO THE CONTROL CABINET WIRING. MI-563392-31 RESISTOR & REGULATOR KIT, SCREEN
SUPPLIES. DATE ISSUED - 7/30/82 PURPOSE -
MODIFIES HEATSINK BOARD #4 IN BOTH THE VISUAL AND AURAL SUPPLIES BY MOVING A
JUMPER AND CUTTING THE TRACK. INSTALLATION
OF THIS KIT CONVERTS AN MI-563209 B OR C INTO AN MI-563209 B1 OR C1 AND AN
MI-563210 B OR C INTO AN MI-563210 B1 OR C1. MI-563392-32 G-LINE PARALLEL RACK BREAKER PANEL
KIT. DATE ISSUED - 12/8/83 PURPOSE - TO
REPLACE CIRCUIT BREAKER CB1 FOR 480V LINE OPERATION ON THE TRANSFORMER TRAY
(FRONT) PANEL. |