Service manuals, schematics, eproms for electrical technicians
MINERVA 506W-FM TUBES RADIO SCH
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AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
If you get stuck in repairing a defective appliance download this repair information for help. See below.
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Looking for similar minerva manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar minerva manual?
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MINERVA TUBES RADIO 506WFM 506 WFM 506W FM 506W-FM
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Relevant AUDIO forum topics:
Sziasztok!
Yamaha DSP-A 595a azt produkálja, hogy bekapcsolás után pár másodperccel lekapcsol. Végfokok jók, a szervízmenübe lépve ezt írja ki: 1 DVD/LD DC 0%
Ez mire vonatkozik? Azt írja a SM, hogy az 5V a 100%, ebből arra gondoltam, hogy vmelyik 5V hiányzik, de én rendben találtam. Tudna valaki segíteni?
Köszönettel
Attila
Sziasztok!
A fent említett combónak a végfokról kellene az ellenállások értékei (R61;R14;R15;R6) .,ha valaki tud segíteni megköszönöm.
Üdv: Attila
A fent említett combónak a végfokról kellene az ellenállások értékei (R61;R14;R15;R6) .,ha valaki tud segíteni megköszönöm.
Üdv: Attila
When the speaker is connected to the 220V network, a hum appears in the bass speaker after 1-2 seconds. There are no buttons that do not work, the red power-on LED is constantly on. What is the reason, where to look for the fault?
Given:
Victor TT-71, neon lamp does not light, speed is lower than normal. This is subsequent some short circuit the owner does inside the device. No further details.
I found out the VICTOR QL7 have the same motor driver amd I downloaded the service manual that I attached here in case this manual is not already uploaded.
Looking at the diagrams I found out that at TP3 (same with pin5 of IC803) instead if that rectangular signal, I have nothing but 5VDC and a negative or positive short spike whenever I'm starting or stopping the motor and
Under the circumstances I suspect IC803 is defective. The bad thing, IC803 is NPC SC8043. Also I wonder if the crystal is fine (except that I wonder what can be wrong with a crystal after some short circuit).
Does anybody have any more suggestion?
Also, where can NPC SC4043 be sourced? Also, a crystal 9.054MHz?
Thanks in advance,
Corneliu
Victor TT-71, neon lamp does not light, speed is lower than normal. This is subsequent some short circuit the owner does inside the device. No further details.
I found out the VICTOR QL7 have the same motor driver amd I downloaded the service manual that I attached here in case this manual is not already uploaded.
Looking at the diagrams I found out that at TP3 (same with pin5 of IC803) instead if that rectangular signal, I have nothing but 5VDC and a negative or positive short spike whenever I'm starting or stopping the motor and
Under the circumstances I suspect IC803 is defective. The bad thing, IC803 is NPC SC8043. Also I wonder if the crystal is fine (except that I wonder what can be wrong with a crystal after some short circuit).
Does anybody have any more suggestion?
Also, where can NPC SC4043 be sourced? Also, a crystal 9.054MHz?
Thanks in advance,
Corneliu
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