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kenwoodts120130@groups. io | No Display on any band. Start as always by checking all the regulator outputs and making sure they are OK, and you have 5V to all the logic IC's No display = PLL unlocked (or no VFD power) If it is a pcb fault the counter or pll boards are most likely, and most action is on the latter See pg 4,5 of service manual
Kenwood TS-120S repair and restoration - Page 1 - EEVblog I've got several PMs this year as to how to fix the issue with the unit not working on 10m and 15m, and the display showing "dots" The fix has been described elsewhere on the internets, but since people Googling end up in this thread I'll describe it here also
HELP! I Just Got a TS-120 - qsl. net Carrier point adjustments can be made easier by using Spectrogram or another FFT display Protection adjustment is VR1 of the Filter board and not VR2 as shown
Kenwood TS-120S Service manual - W5RKL BUILT-IN DIGITAL DISPLAY The digital display affords reading Of Operating freque - to an accuracy Of 100 Hz on am,' band and any mode 3 BUILT-IN SHIFT CIRCUIT (Passband Tuning) An IF SHIFT system is built in to the transceiver ta allow shil- ting of the IF passband thereby eliminating adjacent channe interference, 4
TS-120 display - WorldwideDX Radio Forum I have a Kenwood TS-120 that has all of the top and right top segments permanently lit at about 75% brightness Would this be the display itself, or something else causing it?
Kenwood TS-120S Manual The Kenwood TS-120S is a high-performance amateur radio transceiver covering the HF bands with SSB, CW, and AM modes Featuring solid-state construction, digital frequency display, built-in power supply, VFO with clarifier, noise blanker, RF attenuator, and multiple filtering options
Kenwood TS-120s problem diode question - Antique Radio Forums I did a couple searches and found a bulletin that describes that problem and says that diodes D2, D3 and D8 can cause this I measured them with a VOM and got D2= 562 642 ohms, D3 2 17k 2 16k ohms, D8 356 358 ohms
TS-120S Unlocked PLL - Help Please - Transmission1 Check 20MHz signal at D24 D25 -- level should be greater than or equal to level of 10MHz seen for 20 meters Check for and replace bad 2SC460 at Q24 and Q25 Several of these transistors have been seen to lose gain over time Both Q24 and Q25 were good but just low gain