Recent content by Pdow

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    Marantz SR-9000G Mystery Receiver

    Picked one up some years ago.station preset buttons don't work. It is a handsome unit. Sounds fine, however it runs hot and for that reason it has been put aside.
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    Sansui g9700 dropped

    Because of the very very poor packing and problem/response I got from seller - I surmised seller was a fraud. Partly my fault though because I bought it with only 1 picture of it in the listing, just the front.
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    Marantz 2265b p800 parts list

    Much appreciated. Those 2690's are bigger in size and diameter of legs. In my search of Mouser , it lists the factory p800 transistors but only as obsolete without any suggested substitute.... So that had me flummoxed. So this link and your info is golden. Thank you.
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    Marantz 2265b p800 parts list

    Thanks for continued advice. Since my 9volt battery was so low during earlier reading. Before anything might be good to remeasure with full dmm batt voltage.
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    Marantz 2265b p800 parts list

    Yes , I have a pencil point, braided copper wire, etc, just not much experience, but I think I can do this. I have the 24v protection device, I have a eBay p800 capacitor kit that incudes 12 transistors. However most/all of the original p800 transistors are small TO-92 style and this kit has...
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    Marantz 2265b p800 parts list

    Checked 9v battery: it was 7.7v Replaced it. Here are measurements to chassis. In vdc. Q810 b .015 c 1.27 e .0 Q811 b 1.27 c 26.32 e .72 Q812 b .073 c 26.4 e .097 Any luck !
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    Marantz 2265b p800 parts list

    Sorry for lack of progress. Going to look more closely. Thanks
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    Marantz 2265b p800 parts list

    Hello . Thank you for looking at my measurements. Q810 e,1.28 c,1.29 b, .004 Q811 e, 1.27 c, 26.4 b, 1.28 Q812 e, 1.56 c,26.33 b, .762
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    Marantz 2265b p800 parts list

    Here are vdc of Q813 diode to grd +29.48 and +26.35. each diode side . I measured each leg of Q810,811,812 red lead to chassis grd. Q810 B 1.28 C 1.28 E 0.004 Q811. B 26.33 C 1.28 E 1.28 Q812 B 0.755 C 26.31 E 0.154 Thanks for analyzing them.
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    Marantz 2265b p800 parts list

    Here are acv measurements from 2265b p800 J801 34.6 acv J802 34.6 acv J817 7.9 acv The Q813 diode reverse bias measurement, Test lead blk to diode cathode (-) Test lead red to diode anode (+) Result -2.37 vdc Test lead red to diode cathode (-) Test lead blk to diode anode (+) Result OL...
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    Marantz 2265b p800 parts list

    Yes. I see this now. Beauty.
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    Marantz 2265b p800 parts list

    Thanks. I listed J818 twice. The first listed J818 is actually J814 0.01v The pins layed out in the schematic are different from this 2265b p800 board pin layout. The J820 pin is between J807 and J811. J820 and J811 both measure +13.5v. however there is no component wired to pin J820. I will...
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    Marantz 2265b p800 parts list

    Thanks for directional help. I have some d.c values for a 2265b. I will list all values on the L801 side of p800 (protection power supply). They are J818 J816 J815 J813 = 0.00v. J812 -43.4v J818 0.00 J819 +8.9v. J817 -0.01v. J808 -36.3v The readings on the board to the left of L801 are, J801...
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    Marantz 2265b p800 parts list

    Thanks for the p800 schematic with highlighted test values. This unit has slowly lost function. There is no safety click. However it does power on/light up . Selectors function but no sound aux,phono, fm/am, nor tape mon inputs. The fm signal/tuner dials pick up signal, but as said-no sound...
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    Marantz 2265b p800 parts list

    Hi thanks for idea. When my unit doesn't click when turning on and it is not working in other ways that are kind of strange, and it is original never worked on and based on notes on vintage marantz by others saying p800 is good first place Togo to...... My limited troubleshooting skills have...
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