Ahoj všetci, keď som po dlhom čase zapol rádio, zistil som, že sa všetky naladené stanice stratili. Keď ich naladím, aj keď len prepnem alebo vypnem rádio, tak sa stratia. Myslel som, že tam je nejaká batéria na podporu pamäte, ale nič som nenašiel. Viete mi pomôcť s mojou problémom? Ďakujem za odpoveď.
JVC PC -V77
- Thread starter Mapo
- Start date
goodman
Member (SA)
Ahoj. Nemám ten magnetofón a neviem ti pomôcť. Toto fórum je napísané iba v angličtine.
Ak je to pre vás ťažké, použite Google Translate, keďže vám teraz píšem.
Mapo write: (Google translate from Slovak)
"Hi everyone, when I turned on the radio after a long time, I found that all the tuned stations were lost. When I tune them, even if I just turn the radio on or off, they are lost. I thought there was some kind of battery to support the memory, but I couldn't find anything. Can you help me with my problem? Thanks for the answer."
Ak je to pre vás ťažké, použite Google Translate, keďže vám teraz píšem.
Mapo write: (Google translate from Slovak)
"Hi everyone, when I turned on the radio after a long time, I found that all the tuned stations were lost. When I tune them, even if I just turn the radio on or off, they are lost. I thought there was some kind of battery to support the memory, but I couldn't find anything. Can you help me with my problem? Thanks for the answer."
caution
Member (SA)
See my comments about this battery issue on this thread.
I believe that the V66 uses the same circuit, so the behavior will be similar.
I believe that the V66 uses the same circuit, so the behavior will be similar.
PC-V66 Digital Tuner Station Presets wiped with power cycle
Hi, Newb here in the boomboxery. I had located a couple others post this same issue with their JVC PC-V66 sub wolfer boom box with no solution. I have had this one since new. Always liked the combo of a digital tuner, great sound, AND an aux input... originally for a cd-player and now a...
www.boomboxery.com
caution
Member (SA)
B25 is not a reference designator for a capacitor. B prefixes are for the wire jumpers.
It's C50 (marked near the cap):
The part on the BOM:
They don't list the reference designators for the jumper wires on the board diagram in the service manual, but you can see where they are:
It's C50 (marked near the cap):
The part on the BOM:
They don't list the reference designators for the jumper wires on the board diagram in the service manual, but you can see where they are:
goodman
Member (SA)
Yes, I didn't see it well.
The black thing is a super capacitor but according to the schematic it's called "C50".
In the above topic it says that the value of this capacitor is extremely high value - 47,000 microfarads.
What's in that place on your board? You can share a picture here.
The black thing is a super capacitor but according to the schematic it's called "C50".
In the above topic it says that the value of this capacitor is extremely high value - 47,000 microfarads.
PC-V66 Digital Tuner Station Presets wiped with power cycle
Hi, Newb here in the boomboxery. I had located a couple others post this same issue with their JVC PC-V66 sub wolfer boom box with no solution. I have had this one since new. Always liked the combo of a digital tuner, great sound, AND an aux input... originally for a cd-player and now a...
www.boomboxery.com
What's in that place on your board? You can share a picture here.
Last edited:
goodman
Member (SA)
Look at what parameters are written on it. If it works at 5.5 volts and is 47000uF then you have these:
model - V type, cap - ???
0.047F (47,000uF) 5.5V SuperCap 40Ω ESR 13x8.5mm 5.08mm LS for HTX-100 C413 | eBay
Exact identical replacement for Radio Shack Realistic HTX-100’s C413 Memory Backup SuperCap 0.047F (47,000uF) 5.5V 40Ω ESR 13x8.5mm 5.08mm Lead Spacing
www.ebay.com
1Pc 5.5V 0.1F/0.22F/0.33F/0.47F/0.68F/1F/1.5F/4F Super Farad Capacitor | eBay
5.5V 0.1F/0.22F/0.33F/0.47F/0.68F/1F/1.5F/4F Farad Capacitor Super Capacitor. Diode Rectifier. Spear Rod & Gun. Shade Cloth. Tents, Tunnels & Playhuts.
www.ebay.com
model - V type, cap - ???
Super Capacitor 5.5V for sale | eBay
Get the best deals for Super Capacitor 5.5V at eBay.com. We have a great online selection at the lowest prices with Fast & Free shipping on many items!
www.ebay.com
Neviem ako upraviť môj príspevok, tak berte tie údaje za možné, až ho vyberiem , mal by som to vedieť presne. Dúfam.
Objednal som si na e-Bay 0,47 F/ 5,5 V
ak by bol pôvodný 0,047 F a ja by som ho nahradil 0,47 F, tak by bola pamäť dlhšia, dúfam, že rozmery nebudú oveľa väčšie.
