RSGaugeworks

RS Gauge Works

3028 E. Danbury Rd.
Phoenix, AZ 85032
(602) 978-1746
radio conversions from AM to AM-FM
burma style signs.  Your exterior is beautiful, your car is ready for the stage.  Don't be let down, by a crusty old gauge.  RS Gauge Works
Clock repairs and quartz conversions
Makes and Models from 1920 through 1970's
input jacks installed for mp3 players
Reproduction Radios
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Radio Conversions  download radio instructions

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Be Safe! Disconnect one battery terminal and leave it disconnected until installation is complete. Make sure you are familiar with the options and features programmed into this radio. Locate the antenna jack, the auxiliary inputs and any controls that are mounted where they are only accessible from behind the dash before you install the radio. If you want to “bench test” the radio use a fully charged battery. DO NOT operate this radio directly from a battery charger. Serious damage may result! Be sure your radio voltage and polarity matches your car.

Installation Guidelines

A major consideration will be speakers. If you only have room for one speaker, use one full range speaker instead of the “dual” speakers made to fit one opening. Because those dual speakers have small cones, they can’t produce any bass, and you won’t be able to hear stereo separation because they are mounted so close together.

Use one 4 ohm speaker for each channel you want to connect. Make sure it can handle the wattage! Unless you crank it all the way up regularly, 30 or 40 watt RMS ratings should be sufficient. The higher the SPL rating of the speaker, the better it is. Look for an SPL of 88 or better. A good full range speaker should have a frequency range from less than 40 Hz to better than 20 kHz.

Pay attention to polarity! Speaker terminals will be marked with a + and - , or a red dot on the + terminal. If all speakers are connected to the proper polarity, they will operate in harmony. If they are not properly phased, you will not hear the full fidelity of the radio. Note: - does not mean ground! This is a high power radio in which both speaker lines are driven with high currents! Never allow any speaker lead to become grounded when the radio is on!

If your car is a convertible or station wagon, it may not be possible to mount speakers in the rear. You might consider kick panel speakers, or mounting speakers under the dash where they’re out of sight.

Unless your radio is mono with the speaker built in, it has a 12 pin connector for the speakers, power, and options. It may have a red (fused) wire. This is for power input. If this wire is not included, your radio has a separate (original) power input that connects directly to a plug in the wiring harness. It may also have a green wire that is used for the dial light. If the green wire is not installed in the 12 pin plug, it is either part of the original power plug or was not separately wired originally. The orange wire is a switched 12 volt output that may be used to power options like MP3, IPOD, or CD players, or satellite receivers. It can also be used to control power antennas. The wiring for the front speakers includes a blue and violet pair for the left front speaker and a gray and white pair for the right front speaker. Each front pair will have a yellow band around it. The rear speaker wiring also has a blue and violet pair for the left rear speaker and a gray and white pair for the right rear speaker. Each rear pair will have a green band around it. There is no ground wire. The ground connection is made when the radio is bolted into the dash.

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Operating Your Radio

Band selection: If your radio has an AM/FM switch, set it for the desired band. If it does not, it will power up in the FM stereo mode the first time it is tuned on. To switch to AM, turn the radio off, and then back on again. To switch back to FM, turn the radio off, wait 5 seconds, then turn the radio back on.

Tuning: Radios that only have an AM dial will tune the FM band from 88 (low end) to 108 (high end) mHz. Since 1100 kHz is approximately the center of the AM band, it will correspond to about 98 mHz on the FM band. You can set your pushbuttons for either AM or FM stations.

Tone: The tone control (usually behind the volume control) provides flat bass and treble near the center position. Turning the control clockwise boosts treble, and counter-clockwise boosts bass.

Balance: If your radio originally had a balance control, it will operate normally. If your radio was not so equipped, and it has more than one speaker, a balance control has been added. See instructions shipped with radio for your option. If an external balance control has been added, set it for the most pleasing sound. If an alternate (Alt) control is programmed, tune to an FM station and set the tone for the best sound. After you’ve listened for a few seconds, tune rapidly to the bottom of the dial. The LED in the dial (where applicable) will begin to flash, and the last station you were listening to will start playing again. Use the tone control to adjust the balance. When you tune away from the bottom, the radio will resume normal operation, and the tone control will no longer affect balance. If use fader is programmed, the original “front/rear” fader will instead ontrol left/right balance. This option is typically used for 2 speaker systems when the radio was originally equipped with a front/rear fader.

Fader: If your radio has more than two speakers, and had an original fader, it will operate normally. If not, a fader has been added. See instructions shipped with radio for your option. If an external fader has been added, set it for the most pleasing sound. If an alternate (Alt) fader is programmed, tune to an FM station and set the tone for the best sound. After you’ve listened for a few seconds, tune rapidly to the top of the dial. The LED in the dial (where applicable) will begin to flash, and the last station you were listening to will start playing again. Use the tone control to adjust the fader. When you tune away from the top of the dial, the radio will resume normal operation, and the tone control will no longer affect the fader function. If either the Alt balance or Alt fader option is used, the settings are permanently stored (until you change them). Every time you turn on the radio, the balance and/ or fader values you last set will be re-loaded.

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TROUBLESHOOTING

No Sound: Check for good fuse with proper rating. When the radio is turned on, the orange wire should have 12 volts present. Radio will “mute when no station is received. Make sure antenna is plugged in. If all 4 speakers are not connected, make sure the balance and/ or fader controls are set for the speakers that are connected. If an option is plugged in to the RCA inputs, make sure it’s not on.

Blows Fuses: Make sure you’re using the proper fuse (10 A for most applications, 6 A for 6 volt Pos Grnd). Make sure the battery polarity is not reversed. Check to see if the orange wire is shorted. Make sure no speaker wires are grounded or pinched under a seat. If your radio is a signal seeker and the battery is not fully charged, it may blow the fuse when the solenoid tries to activate.

Weak or No Reception: Make sure the antenna is plugged in to the proper jack. Check continuity between the center pin of the antenna plug and the antenna mast. It should read 0 ohms (like a short) Next, check continuity between the center pin of the antenna plug and the car body. It should not read (like an open circuit). If you’re in a metal building, reception may be limited. Try it outside.

Engine Noise: Usually caused by an un-grounded antenna shield. The base of the antenna must make good contact with the car body. This problem often shows up after a good paint job! Make sure the engine grounding straps are clean and tightly bonded to the frame.

Low Volume: If you’re using 8 or 10 ohm speakers, you won’t get the rated power out. Make sure speakers are properly installed. Make sure balance and fader controls are properly adjusted.

Distortion: Check to see if your speakers can handle at least 45 watts RMS. Make sure the speaker pairs are not mixed (i.e. gray front with white rear). Make sure that no speaker is grounded. Every speaker lead should measure about 2-l/2 volts to ground with the radio on and volume low. Resistance in the DC power input wiring can cause the amplifiers to “starve”. If distortion seems to increase with volume, measure the voltage on the orange wire. If the voltage drops when the volume is raised, it is an indication of resistance between the battery and the radio — usually at the fuse block, but sometimes in the ignition switch.

No Dial Light: Some radios use a separate dial light wire that is connected to the dash light dimmer. This is the green wire if it is run through our l2 pin connector. If there is no green wire provided, the dial light should be connected through the original power connector (typically on the left side of the radio).

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Connecting Options to your radio

Your radio has a pair of RCA input jacks installed that allows other audio sources to play through the radio. To install a CD changer, XM receiver, or other accessory simply plug the audio outputs into the female RCA jacks provided on the radio. You may also want to use the orange wire to provide 12 volt power for accessory. The orange wire is a 12 volt source that is only “on” when the radio is on. Follow the manufacturers instructions for installation, and disregard the part about antenna plugs (if applicable). That’s all there is to it!

Switching between the radio and an accessory connected to the RCA jacks is done automatically when an audio signal is present at the inputs. When the accessory is put into the “play” mode, or the XM receiver is turned on, the radio will switch off, and the RCA inputs will become active. When no audio is detected at the inputs for more than 10 seconds, the accessory is assumed to be tuned off, and the radio will resume playing. If your radio has an LED status indicator, it will be off while the radio is in the auxiliary input mode. The volume, tone, and hardware controls for balance and fader (if present) will be functional in this mode, but if your radio uses alternate (software) balance and/or fader controls, they will not be accessible in the auxiliary input mode. (Alternate controls can only be adjusted in FM mode).

Follow the manufacturers instructions for adjusting the audio input level. For example, the audio output level from the XM receivers can be adjusted from the XM controller via the options menu. See the XM instructions for details. When the radio is turned off with the radio on/off switch, the accessory will automatically turn off if the orange wire is used for power.

If your radio incorporates a factory 8 track or cassette tape option, it will begin playing as soon as a tape is inserted just as it did originally even if the radio is in the auxiliary input mode when the tape is turned on. The LED status indicator (if present) will be turned off while the tape is playing. The order of priority is tape/ auxiliary input/radio.

Caution! The orange wire is a l2 volt control line that is powered directly from the main switch in the radio. It is intended to be an output only. The maximum current it can safely source is 5 Amps continuous. If the orange wire is shorted to ground serious damage may occur!

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