The RLN4460A Mobile/Portable Test Box is a service aid for all Motorola two way portable radios currently serviced by the RTX-4005B as well as mobile radios. The information contained below is from the manual shipped with the RLN4460A, and is provided as an aid for the repair of this device.
Operational Temperature: 0C to +60C Audio Input: Operating Frequency Range: 80Hz to 3000Hz Maximum Power Dissipated in R15 (4ohms): 15 Watts Maximum Continuous Dissipation Period: 30 Minutes Maximum Power Dissipated in R16 (4ohms): 8 Watts Maximum Continuous Dissipation Period: 30 Minutes Maximum Power Dissipated in the parallel combination of R3 and R4: 15 Watts Maximum Continuous Dissipation Period: 30 Minutes Maximum Audio Amplitude: 9.0 Vrms Maximum DC Offset at Maximum Amplitude: 0.5 Vdc
Adapter, Banana Jack Male-to-BNC Female (Jack) 58-84066A74 Adapter, BNC Male (Plug)-to-BNC Male (Plug) 58-82777A01 Adapter, BNC Female (Jack)-to-BNC Femals (Jack) 58-82577B01 Adapter, BNC Tee, Female (Jack)-Male (Plug)-Female (Jack) 09-82578B01 Cable, Coaxial, BNC Male (Plug) Terminated, 4 Feet 01-855414
The RLN4460A is connected to the radio under test with a specific programming and test cable. This cable connects the signals present at the radio's universal or accessory connector, such as the external speaker and external Push To Talk (PTT) input, to the RLN4460A and to the programming system (RIB/SmartRIB and PC). The programming and test cable configures the RLN4460 as either a portable test set or mobile test set.
Each radio service manual describes the use of the test set, as well as the required cables, service aids, and equipment for rach service procedure.
For many years, the RTX4005 fulfilled the test set function for Motorola portable radios. The RTX4005B is distinguished by a unique, round connector that mates with all portable radio programming and test cables. The RLN4460A replaces this round connector with an industry standard 25 pin D connector. Programming and test cables with the unique round connector interface to the RLN4460A with the RTX4005 Adapter Assembly, Motorola part number 01-80303E49. The RTX4005 Adapter Assembly configures the RLN4460A as an RTX4005B. For service manuals that reference the RTX4005, use the RLN4460A according to cross reference table below.
Later model portable radios programming and test cables do not require the RTX4005 Adapter Assembly. These cables interface directly with the RLN4460A.
Always consult the portable radio service manual for correct use of the RLN4460A.
When configured as a mobile test set, the RLN4460A supports the following mobile radio external speaker loads.
2 Ohms, 20 Watts 4 Ohms, 20 Watts 8 Ohms, 20 Watts
When selected by a programming and test cable, the EXTERNAL LOAD banana jack port connects unique speaker loads to a mobile radio's external speaker output. In this way, unique speaker loads (e.g. 6 Ohms, 12 Ohms) are supported by inserting the custom value into the EXTERNAL LOAD port.
Always consult the mobile radio service manual for correct use of the RLN4460A.
Since the RLN4460A contains industry standard components, part numbers for specific components are not available through Motorola, but may be purchased through any electrical component source for unit repair. A list of RLN4460A components, component ratings, component values, and requirements as well as a test set schematic are provided as an aid to repair.
RTX4005B/RLN4460A Cross Reference:
|RTX4005B Function||RLN4460A Function with 01-80303E49 Installed|
|Meter Selector, Audio PA||METER OUT (Meter Selector), RX|
|Meter Selector, MX Disc||METER OUT (Meter Selector), DISC MX|
|Meter Selector, Vol||METER OUT (Meter Selector), VOL|
|Meter Selector, Mic||METER OUT (Meter Selector), MIC AND METER OUT
toggle switch, MIC PORT position*
|Audio Out, Spkr||Toggle switch, SPKR position|
|Audio Out, Load||Toggle switch, LOAD position|
|Audio Out, MX||METER IN, MX**|
|Audio Out, MT||METER IN, B/MT|
|Audio Out, A||METER IN, A|
|Autio Out, B||METER IN, B/MT|
|Audio Out, C||METER IN, C|
|MT PL, On||OPT SEL (MT PL), ON|
|MT PL, Off||OPT SEL (MT PL), OFF|
|AC/DC Mtr banana jacks||METER OUT (AC/DC Meter) banana jacks|
|MT B+ banana jacks||METER IN (MT B+) BNC, with METER IN switch set to B+**|
|Audio IN banana jacks||AUDIO IN BNC|
*In the MIC PORT position, the METER OUT toggle switch allows measurement of microphone audio right at the radio microphone input port. In the AUDIO IN position, the METER OUT toggle switch allows measurement of microphone audio right at the AUDIO IN BNC port, BEFORE "T" attenuator R8, R9, R10 (see schematic).
**When the METER IN rotary switch is set to any of the portable load settings (MX, A, B/MT, C), B+ is available at the METER IN (MT B+) BNC.
Operator Interface Specifications:
Meter Out port: Dual female banana jack, 0.75" centers, panel mount, one banana jack red, one banana jack black External Load port: Dual female banana jack, 0.75" centers, panel mount, one banana jack red, one banana jack black AUDIO IN port: BNC connector, female METER IN port: BNC connector, female METER OUT switch (S1): Single pole, 4 position rotary switch METER IN switch (S2): Double pole, 9 position rotary switch OPT SEL switch (S5): Single pole, single throw toggle switch PTT switch (S4): Single pole, three position, momentary toggle switch METER OUT switch (S6): Single pole, double throw toggle switch Speaker switch (S3): Single pole, double throw toggle switch Fuse holder: Panel mount Speaker (SPK1): 39 Ohm or 40 Ohm audio speaker, 3" diameter, with grill or equivalent covering Test Cable Connector (J1): DB25 pin, female, with thumbscrew inserts (female) to be accessible
Electrical Component Specifications:
Audio Transformer (T1): 600 ohm impedance at 1000 Hz Power Resistor (R15): 4 Ohm, 20 Watt Power Resistor (R16): 4 Ohm, 10 Watt Capacitor (C1): 47uF, 25V, 0C to +85C rating Diode (D1): 1000V, 1 Amp 1 Watt Resistors: R1: 68 Ohm, 5% R3: 39 Ohm, 5% 1/2 Watt Resistors: R14: 68 Ohm, 5% R13: 100 Ohm, 5% 1/4 Watt Resistor: R12: 1300 Ohm, 5% All Other Resistors: 1/4 Watt, 1% values as specified on the schematic
Click here for the schematic of the RLN4460A.
01-80303E49 Adapter Assembly
The 01-80303E49 Adapter Assembly permits portable radios currently serviced by the RTX4005B to be serviced by the RLN4460A mobile/portable test set. The assembly consists of two parts: an adapter and a cable. The adapter has the RTX4005B 14 pin custom round connector and a 25 pin female D type connector. The adapter serves two purposes: 1) interface RTX4005B type portable radio test set cables with the round 14 pin connector to the RLN4460A mobile/portable test box 25 pin D type connector, 2) enable RTX4005B specific functions in the RLN4460A, such as the internal portable radio speaker loads (A, B, C, MX, MT). The cable terminated with two 25 pin male D type connectors connects the adapter to the RLN4460A. See the RLN4460A instructions above for complete operational details. Schematics for the adapter and the cable are provided for reference.
The round connector is available from Motorola for repair; the part number is 09-82201E01. All other components are industry standard parts; part numbers for specific components are not available through Motorola, but may be purchased through any electrical component source for unit repair.
Click here for the schematic of the 01-80303E49 Adapter Assembly.
Thanks to Danjovic and a few others for getting us all this info on the RLN4460A.