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SSB seems ok. Both USB and LSB show about a constant 2 to 3 db of signal on noise, as though the receive is too high. AM on the other hand shows 0 signal on noise floor and quiet until someone keys up. VR1 is set a tad above halfway (about where all these Saturns rest when adjusted). VR2...

Got another Saturn on the desk. The issue is low receive (it's got receive but just a little low). Evaluation: All the electrolytic caps were either high esr, shorted or dried up. Everything else looks great. Replaced all electrolytic caps with new ones. After: Receive came up some but not...

Already got a few radio checks over the air. Reports are "That audio is loud as ****" by three people.

Got this one back going. The 1 ohm resistors (with the beads on one lead) at the first final bias VR and at the second final bias VR was shot. Replaced both. Both final bias VR adjustments were way out of tolerance. One showed around 28 ohms, the other showed around 34 ohms. Out of circuit of...

Maybe just an employee error, first time I ever ran across any bad ones from nich.

Nichicon, only brand I been using for the past several years. But seems like high demand for Nichicons has resulted in less quality control.

I had a family issue pop up. Plus my new order of caps should be in this week (had an entire batch of 100uf caps bad), switching brands of caps due to a bad batch of one value that I use a lot of. D77 I think is correct. Thing is, this radio received and transmitted fine before and after I...

Had some family issues come up. Getting started again later. Sorry for holding you guys up on the outcome of a few radios.

Got a question on the CTCSS function of the Retevis HS4. Is there anyway to lock onto someone's code they have set on their end? I've heard that if I go to a frequency in FM mode that someone has a code set on, but I don't have the code for, that I could go into the menu and move to the...

Board number is "SRT-3600-10". There is no difference between external speaker (3.5mm jack) and internal speaker volume. It does switch properly from internal to external speaker. So far my 100uf caps I put in show as bad esr (new nichicons). Guess I got a bad batch of 100uf caps. That plus...

Could be one of these original caps in front of the audio IC and near the mic/op amp. All these caps are original (30 to 45 years old), I only replaced the few that looked overheated and slightly bulging/opening, gonna replace all the caps in those two areas and then give an update on voltages...

Got a Colt Excalibur on the desk today. Nice looking radio, eat up with roach tracks and crap. Cleaned it out thoroughly. Radio comes on but has very low volume on receive (signals are very good on meter though) even with volume wide open (barely hear it). Tried to transmit and it just makes a...

Awesome, thank you TM

FCC Data - CM-2358S Serial No. 047345 Just checked again, it is 70701. I've read that the JC Penny 6248 is basically the same radio. I found a service manual on Scribd for the 6248 but I don't have an account to download it. Anyone have the JC Penny 6248 service manual?

Upside down, but this is the one I'm needing the service manual, alignment info on.

934-38270701 I checked the Cobra 146 and Uniden 122, niether one of those resemble this board layout.

Got a Sears RoadTalker 40 base on the desk today. Issue: Powers on and that's it. Very little hiss in speaker with volume wide open. No transmit. Meter light out. Evaluation: Needs recapping throughout. No hackery anywhere in this radio. Got the receive and transmit issue fixed. Turned out to...

That bad 560pf I forgot to discharge before inserting into tester. Anyway to fix it?

Used my old TC1 tester also, and it shows these transistors as good with good HFE's. Guess my newer TC1 is bad.