Xdevo1973
Active Member
Hi Everyone,
I wonder if any of you can help. I bought a JVC 4VR 5456X receiver and it sounds pretty good. I had a replace a preamp transistor in the right front channel which got it up and running quite well. I played some CD-4 records after I calibrated the separation and carrier and was more impressed as it sounds better than my Marantz demodulator; I was feeling pretty good until I hit this snag-the phono section does not want to play stereo records in both channels. If there's no CD-4 carrier, the left channel becomes almost silent. I've narrowed it down to the CD-4 board as I switched the left and right inputs to it-the inputs are working but one side of the board has either a dead capacitor or transistor. I spent hours trying to troubleshoot but to no avail. Voltage readings on the transistors mirror each other from the good side to the bad side. The capacitors seem to read right on my multimeter. Does anyone have any suggestions? Why would it pass all four channels with the carrier but only pass the right channel with stereo and matrix records?
I wonder if any of you can help. I bought a JVC 4VR 5456X receiver and it sounds pretty good. I had a replace a preamp transistor in the right front channel which got it up and running quite well. I played some CD-4 records after I calibrated the separation and carrier and was more impressed as it sounds better than my Marantz demodulator; I was feeling pretty good until I hit this snag-the phono section does not want to play stereo records in both channels. If there's no CD-4 carrier, the left channel becomes almost silent. I've narrowed it down to the CD-4 board as I switched the left and right inputs to it-the inputs are working but one side of the board has either a dead capacitor or transistor. I spent hours trying to troubleshoot but to no avail. Voltage readings on the transistors mirror each other from the good side to the bad side. The capacitors seem to read right on my multimeter. Does anyone have any suggestions? Why would it pass all four channels with the carrier but only pass the right channel with stereo and matrix records?