Service manuals, schematics, eproms for electrical technicians

ALWAYS 3-LAMPE-JH3K DYN-FRI [8711] [1933] SCH

AUDIO - SERVICE MANUAL
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AUDIO
SERVICE MANUAL
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    ALWAYS DYNFRI [-8711] [-1933] 3LAMPEJH3K [8711] [1933] LAMPEJH 8711 1933 LAMPE JH3K DYN FRI DYN-FRI
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Relevant AUDIO forum topics:
KRK VXT4 studio monitor speaker - mains hum. Schematics required
Hi - I have a pair of KRK VXT4 studio monitor speakers. Very expensive! When I stored them, they were working fine. When I tried to use a few days ago, one of them simply hums loudly at 50Hz. I have tried replacing the two 12000uF PSU capacitors, as I found on Google that sometimes they can become depolarised but this has not solved the problem. I am trying to find a schematic for both the main board (which has the PSU and the PA stage) and the pre-amp board. - Thanks, Kevin
Pye type 38H - Cambridge - Radio - Antique - Vintage
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