Galaxy DX 2547 Service Manual ExcerptsSupport, support, support...The Galaxy support department was gracious enough to send the Galaxy Noise Filter schematic with out a request! This is what is missing in most instances these days with large consumer electronics companies. Their either to big to follow up on details, don't know were to get the information, or plain don't care. Another reason for the lack of support for many radios is that the radios are designed, built and documented off shore and shipped directly to the distributor. The distributor doesn't understand radio technology nor do they understand end user customer support. All they see is the chance to make higher profits by cutting out the important link between the factory over seas and themselves. Most of these radios end up in yard sales or the trash soon after the purchase. Sure you can save a few bucks, but what do you do when the thing quits or there is a technical design flaw. Who's out their to follow up on it. Don't think the distributor or mail order company will. They'll drop it like a hot rock and find a new product to make profit on. Not at Galaxy, they support their product 100% and beyond. To be honest there are a few companies that support their products, but increasingly I see more products that are not supported at all. Have you ever tried to get a service manual for the Uniden Washington base radio? They haven't supplied them for many years! Need more be said?Click On Picture For Close-up.Galaxy Noise Filter Schematic
Figure 2-3 Transceiver Microphone Schematic.
Figure 2-4 Microphone plug and pin numbersviewed from rear of pin receptacle.
The following information is from the Galaxy DX 2547 Service Manual supplied with the radio.
REQUIRED TEST EQUIPMENT
1.DC Power Supply (13.8VDC, 10A)2.RF Wattmeter (100 MHz, SOW)3.Multimeter (Digital) Automatic4.Modulation Meter5.Audio Signal Generator
6.Frequency Counter (100 MHz)7.RF Signal Generator (100 MHz)8.Automatic Distortion Meter9.Oscilloscope (50 MHz)10.Sinad Meter
This transceiver has been aligned at the factory and does not require any adjustments at installation. The required test equipment listed is used for the test setup or alignment shown in Figure 4-1 Transmitter Test Setup and Figure 4-2 Receiver Test Setup. This test setup is used in part or total during the following adjustments. Refer to Page 43 for adjustment location.