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Yamaha memory problem WD292000 - Yamaha RX-397 Natural Sound AM/FM Stereo Receiver, 100W

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We are working with a yamaha HTR-6240. The memory guard is locked on and we wont to use auto setup. Also, as it is currently set, we are getting a lot of volume from our rear speakers and very little...


The manual is available at retrevo.com

Page 43:

Under Setup / Memory Guard on/off

====

For volume of individual speakers see Speaker Setup (Auto) or (Manual) on page 39.

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2002 yamaha venture radio tripmeter memory circuit,need wiring diagram.lost radio/tripmeter memory when batt. was replaced.


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Memory guard on


Hi Rocco

I too have searched the user manual on this unit, and have not found any reference to "memory guard". Can you give me more information about the feature you are trying to operate and I will try to assist you further

Here is a link to a PDF version of the manual for free. Just enter an email address and there you go.

regards
Graeme

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Yamaha RX-V1 Power


Got the same problem and did some searching.
Strange thing is that next day the amp works fine.
This is what I found on http://www.forums.hcsd.com.au/Blah.pl?m-1210733289/s-8/

SYMPTOM: The power cannot be turned on, or the protection circuit is activated to turn off the power.
CAUSE: Fluid leakage occurs from the backup capacitor C633 0.047F 5.5V (C662 in the case of RX-V3000/DSP-AX2) on the Function PCB and causes a short with the adjacent components and between patterns, resulting in operation of the protection circuit. Fluid leakage tends to occur with this capacitor particularly with high internal cabinet temperatures, with or without the power on. Often, the leakage is only visible with very careful inspection.

SOLUTION: Two types of backup capacitors are now available with a longer expected service life. When servicing, thoroughly clean the leaked fluid from the PCB and from under any nearby components before replacing the capacitor. There are models other than those mentioned above that use the subject backup capacitor. Check them for fluid leakage and replace the capacitor as needed.
PART(S): Old
Ref. No. Part No. Description Remarks
C633 or
C662
VT740700
V3860300 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* VU545000 ELECTROLYTIC CAP 0.047F/5.5V
Horizontal type
New
Ref. No. Part No. Description Remarks
C633 or
C662 WD294400 ELECTROLYTIC CAP 0.047F/5.5V Vertical type
* WD292000 ELECTROLYTIC CAP 0.047F/5.5V Horizontal type

Nov 29, 2007 | Yamaha RX-V1000 Receiver

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