The case for the radio touched the circuit board and shorted the area around the connections for the speakers and plus & ground connections. I need some info from a circuit diagram or a circuit board layout in order to repair the unit ... please help
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Although this question is an old one, I\'ll do my best to answer it in case someone else has the same issue. This is condition is nearly always caused by a cabling problem usually where the antenna connects to the radio. Carefully inspect the connector for obvious damage, clean the connection with silicone spray (safe for plastics) and reconnect the antenna several times. While you\'re at it, check and clean the power connections as well, both at the radio and the battery/power panel connections as the problem could be as simple as a poor ground.
This problem could also be the fault of a broken wire/poor solder joint in the PL-259 plug itself. If you\'re handy with a soldering iron, take the connector apart and make sure the centre pin connection is securely soldered as well as the ground braid soldered securely to the case of the PL-259. I\'ve included the link to Uniden\'s marine electronics owner\'s manuals and the support page. I\'ve had pretty good luck in the past when I\'ve had to contact Uniden.
This question has been around for quite awhile, but if anyone else requires the information, as best as I can tell from the owners manual (see below) on page 12, each time the radio is turned on, it starts on channel 16. I believe this to be an important feature in case the user is involved in an emergency situation.
(As a victim or as a possible rescuer.)
You should double check your wiring. I looked online for wiring diagrams for your radio but couldn't find one, however they're not unlike automotive radios. Assuming you have checked and installed the fuses in the wiring harness already, continue reading. otherwise - check them now.
The thing that comes to mind is the (3) power wires (two +12VDC and one -12VDC) that these radios often require. One power wire is connected to a constant power (+12VDC) source that maintains both the radio station memories and a clock if equipped. The second power wire is optionally connected to a switched (+12VDC) power source such as a dash mounted toggle switch or the ignition key. This wire can be connected directly to the battery as instead with the first wire, but you will need to power on / off the radio by its power switch as opposed to relying on the ignition key or dash mounted toggle switch.
Many marine applications are in fiberglass surrounds. You must make sure that the third power wire (-12VDC) is connected to something metal that is connected to or, directly to the (-) post of the battery. All three wires need to be connected to operate as expected.
Hopefully, one of these wires is not connected properly and you'll have your radio working in a very short time. Good luck!
#1. Disconnect the main power to the JBL box.#2. Check the DB9 cable connections, spray with Contact Cleaner (Techspray T8-162210S) in the male & female terminals.#3 Use a toothpick to press a reset button located top left close to the DB9 socket on the JBL box. #4 Reconnect power a& test operation. Good Luck! : ) : ) : )#5 843-849-9037 Ask about warranty or Technical support. email@example.com
This is almost ALWAYS caused by a problem (a short OR an open) in the coax cable from the VHF radio to the antenna. An easy way to check is to JUST insert the PL-259 connector into the socket of the radio, making sure that ONLY the center pin is making contact with the socket. If the weather channels come in clearly, then it's usually an easy fix. Simply check the connections at each end of the coax, looking for a poor center pin solder connection or perhaps a bit of the ground braid is shorting out the center lead. A magnifying glass is a great tool to spot problems.
If the coax proves NOT to be the problem, then the fault is likely to be in the radio itself and is probably a bad solder connection where the antenna chassis mount attaches to the PC board.
The MIC is available with the cord from Icom or me (847-746-0100)
It is not easy for the novice, it must be routed through the front panel and plugged in to the circuit board inside. Not impossible to do, just tedious. Also, my wild guess is about $50 to buy the mic, so, not worth it if you pay labor!