LCD Display for W&G SPM-31 - UK Vintage Radio Repair and Restoration Discussion Forum

G4WYZ MikeyP · 2nd Aug 2021, 12:16 pm

Hello Forum

The LCD on the W&G SPM-31, the 10kHz digit fades after several minutes, the part no is a LED 930-080-S-RF-P2H.

Can-not find any information on the Internet for this part number, does any-one have any info, perhaps an alternative please.

73's

Mike G4WYZ

orbanp1 · 2nd Aug 2021, 12:44 pm

Hi Mike,

Can not help with a replacement LCD, but from the schematics it looks like that the display can simply be "recreated" with 7-segment LED displays.

Regards, Peter

John_BS · 5th Aug 2021, 8:39 pm

Mike: are you sure it's not the drive to the segment? You can check the waveforms going to a "good" segment and compare. I thinkg there's a plug-socket connection in the drive chain? Worth checking that also.

NB I have one of these as well.

2nd Aug 2021, 12:16 pm	#1
G4WYZ MikeyP Triode Join Date: Nov 2012 Location: Chorley, Lancashire, UK. Posts: 21	LCD Display for W&G SPM-31 Hello Forum The LCD on the W&G SPM-31, the 10kHz digit fades after several minutes, the part no is a LED 930-080-S-RF-P2H. Can-not find any information on the Internet for this part number, does any-one have any info, perhaps an alternative please. 73's Mike G4WYZ

2nd Aug 2021, 12:44 pm	#2
orbanp1 Heptode Join Date: Nov 2009 Location: London, Ontario, Canada Posts: 675	Re: LCD Display for W&G SPM-31 Hi Mike, Can not help with a replacement LCD, but from the schematics it looks like that the display can simply be "recreated" with 7-segment LED displays. Regards, Peter

5th Aug 2021, 8:39 pm	#3
John_BS Octode Join Date: Dec 2008 Location: Wincanton, Somerset, UK. Posts: 1,779	Re: LCD Display for W&G SPM-31 Mike: are you sure it's not the drive to the segment? You can check the waveforms going to a "good" segment and compare. I thinkg there's a plug-socket connection in the drive chain? Worth checking that also. NB I have one of these as well.