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Marantz 2270 FM voltage issue ?

At this point, I think the issue might be the tuner is out of alignment, not the voltage. But, you can try to make the supply voltage to 13.5V by checking R013 value and if it is good then you can replace H803 that is according to the service manual is 2SD315 (check on the board what it is actually) with MJE15030G
 
sanjib said:
Okay, I was wrong regarding the resistor number on board. This is I think 10ohm 1/2W resistor. Can you tell me the color code it is a little difficult to see.
Do you have any big white ceramic resistors on the board? According to the schematic, it should be R013.
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what is the correct replacement for R803 ? It cracked when you had me check it.

Need @catrafter to please come help me with this unit. Thank you.
 
Steven Tate said:
So, before the resistor broke, you were getting good meter movement when you tuned across the dial?
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Correct. But only from the FM signal strength meter worked. Tuning meter has been stuck dead center the entire time ( it twitches a tad when turning the selector knob so atleast I know its not stuck?). Stereo light is dim as can be in FM mode. All other functions work , and the stereo light returns to factory brightness when in phono, tape aux. AM works perfectly and is outputting normal listening levels
 
This is probably above my pay grade. Sounds like you are getting a strong signal into the IF amp, but not getting strong audio out of the P300 MPX board. Might check the power to the P300 board. Should be 35V at J315. The board is on the bottom of the stacked boards with P150 on top of it. But there are a few jumper pins on the front edge of the board that are probably visible. Three J's in a row - J306, J315 and J314 are a little left of center on the front edge of the board. Of course, input select needs to be on FM when you check. Otherwise, make sure muting button is out and attenuator switch on the back is set to Out. Also, if you haven't already, Deoxit the Input Select switch and turn it stop to stop several times. Hopefully, someone will chime in with some better suggestions.
 
Steven Tate said:
This is probably above my pay grade. Sounds like you are getting a strong signal into the IF amp, but not getting strong audio out of the P300 MPX board. Might check the power to the P300 board. Should be 35V at J315. The board is on the bottom of the stacked boards with P150 on top of it. But there are a few jumper pins on the front edge of the board that are probably visible. Three J's in a row - J306, J315 and J314 are a little left of center on the front edge of the board. Of course, input select needs to be on FM when you check. Otherwise, make sure muting button is out and attenuator switch on the back is set to Out. Also, if you haven't already, Deoxit the Input Select switch and turn it stop to stop several times. Hopefully, someone will chime in with some better suggestions.
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Well. Ive singled it down to L501. Is this the same L501 found on the P500 board of the 2230 ? Previous owner had cracked the slugs inside.
 
xalara76 said:
Well. Ive singled it down to L501. Is this the same L501 found on the P500 board of the 2230 ? Previous owner had cracked the slugs inside.
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They do not have the same part number, so I’m guessing they are not interchangeable. eBay maybe? I thought I might have one because I have a half full parts chassis. But the P500 board is missing. 2245 should have the same part.
 
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