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Yes, I have tried pressing the reset button, but nothing change.

I have followed sregor's suggestion of adding contact cleaner to VR7 and rotating it back and forth. FM 103.5 is a strong radio channel in my area. When I tune to 103.5, the #4 SIGNAL STRENGTH INDICATORS with 5 leds all light up. When #15 FM AUTO BUTTON is pressed (the #10 AUTO (FM MUTE)...

Do you mean I need special equipment to detect if the MPX comes on?

Thanks for your suggestion. Sorry, I do not know what MPX is. I have searched the internet on it. Do you mean MPX is a tone that I may hear from the speaker? If yes, then I can do so accordingly.

I have tried using an indoor antenna and an outdoor antenna. Also, I used the same indoor antenna and outdoor antenna for another tuner. The Akai tuner could not get stereo with both antennas while the other tuner can get stereo with both antennas.

I need some more help. I cannot get stereo on the FM. What should I check to fix this?

I got it working now. There is no problem with using the PXPR1002 diodes. The main reason I got no screen/display was just because I was too lazy and did not pay attention to details. Thanks for petehall347 reminding me that "maybe a wire off or loose plug". I did not take the whole PCB...

Sorry, I made mistake on that. I tested them again, they are jumpers not diodes.

I could not find any information from the internet on D25 and D26 according to the service manual. Therefore, I just use the diode (PXPR1002) I have on hand. But the result was nothing shown on the screen or display. Even I had taken out the D25 and D26, I could not get back the screen or...

Good! Thanks for all your advice. Will try that tonight and report back the result.

I have tested them. They show 0 ohm one way and infinity ohm the other way, and so I think they are diodes but not jumpers.

Thank you very much for your reply and posting the related pages. Attached please find the actual PCBs of my tuner. There are 4 diodes already installed near D25 and D26, but they are not D24 or D27 (according to the PCBs on P.22 and P.23). I can install D25 and D26. But should I remove the 4...

Yes, I posted on another forum but problem has not been solved.

Sorry, just uploaded it.

I got the tuner free from someone. It seems that the tuner is not for my location (north America) because the AM starts from 522 kHz in step of 9 kHz. I have downloaded the Operator's manual and could not find any information on how to switch it to starting from 530 kHz in steps of 10 kHz which...

I also have one with the same problem. I opened it up and found 1 fuse but it is good. I re-weld some of the suspected cold welds, but still no luck in making it sound. Hope someone can give more suggestions on fixing it.

Thanks a lot. I will try that.

Thanks for your information. Yes, for FM, the pointer goes to the left side of the zero and the right side is okay. According to "Aligning the FM Section" on P.13 of the service manual, adjustment of TC3 needs some equipment which I do not have. Therefore, I think I better bear with that 3MHz...

Thanks for your reply. For the "log scale", do you mean the scale (marked 0 on the left end and 10 in the right end) located in between the FM scale and the AM scale? For the AM adjustment, sorry, I do understand "adjust via the board following the board instructions". Do you mean the "Aligning...

Recently, I got a Pioneer SX-434. Overall, it is great after replacing some light bulb. But I notice that the dial or the dial pointer is not accurate for the FM radio. Roughly it is off by about 3 Mhz. But for the AM radio, I would say it is quite accurate. Is this normal? If not, will...

Hi larryderouin, I also need to replace that stereo indicator light. But when I measure the voltage at the two ends of the lamp, it is almost 13V instead of 6V. Is there something wrong? If I replace it with a 6V 30ma lamp, will it be burnt out?

Hi two.dogs, I also want to follow what you have done. But the photos are not showing up. Could you please kindly upload them again for me?

Recently, I open up the tuner again and took out the pcb. I tried to see if there is any cold solder joint. Actually, I do not have much experience in that. My experience is just from internet. I found some suspected joints (but I was not sure), and so I just resoldered them. After that, I...

I got the Complete (no alpha) recently. I like it very much. But I found there is a "pop" from the speakers when the amp is turn on. Do you have this in the Complete Alpha? The link to my post is...

Thank you