Andreas34346
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September 30, 2021 at 5:47 PM in reply to: C64/C128 S-Video Bypass/RF Replacement – diagonal interference lines #49544
Order #48948
September 19, 2021 at 6:15 PM in reply to: C64/C128 S-Video Bypass/RF Replacement – diagonal interference lines #49374These are the pictures of my ASSY250425 board with RF-replacement installed.
http://www.badgetracker.de/c64/rf-replacement/ASSY250425-001.jpg
http://www.badgetracker.de/c64/rf-replacement/ASSY250425-002.jpg
http://www.badgetracker.de/c64/rf-replacement/ASSY250425-003.jpg
All Commodore chips are original, only all electrolytic capacitors are replaced and voltage regulators are replaced.
Kind regards,
AndreasSeptember 12, 2021 at 6:51 PM in reply to: C64/C128 S-Video Bypass/RF Replacement – diagonal interference lines #49251Hi @buckoa51 and @thecorfiot.
About the temperature of the voltage regulator on RF replacement:
I checked the +9V UNREG voltage (which is supplied on PIN 1 at the RF-Modulator on longboards):
On ASSY 250407 and ASSY 250425 the same results.
The voltage is about 12.5 V. See the following picture:
http://www.badgetracker.de/c64/rf-replacement/assy250407-9v-unregulated.pngAfter checking the LM1117 datasheet, the maximum input voltage is 20V, the recommended voltage is 15V, so this should be ok. Maybe this is normal, that the voltage regulator gets hot.
I use an Electroware PSU C64 B/EU (maybe this is an older version with 2.0A on 5 V DC)
I never had a problem until now with this.
Thanks for your replies until now.
Kind regards,
AndreasSeptember 12, 2021 at 6:50 PM in reply to: C64/C128 S-Video Bypass/RF Replacement – diagonal interference lines #49250Hi @buckoa51 and @thecorfiot.
I uploaded the images on my server now, so wetransfer.com is not necessary anymore.
Videostill 1:
http://www.badgetracker.de/c64/rf-replacement/001.bmpVideostill 1 with Photoshop red lines:
http://www.badgetracker.de/c64/rf-replacement/001-marked.bmpVideostill 2:
http://www.badgetracker.de/c64/rf-replacement/002.bmpVideostill 2 with Photoshop red lines:
http://www.badgetracker.de/c64/rf-replacement/002-marked.bmpPicture from Smartphone:
http://www.badgetracker.de/c64/rf-replacement/003.jpgPicture from Smartphone with Photoshop red lines:
http://www.badgetracker.de/c64/rf-replacement/003-marked.jpgI will test the next days the RF replacement on ASSY 250407, the pictures above are from ASSY 250425.
Pictures of the installation will follow in a few days.
Kind regards,
Andreas -
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