Something we hope you’ll especially enjoy: Send a link to this item so recipient can review, customize or exchange for an alternate of equal or lesser value. It has a single module slot for easy custom configuration using TOA plug-in modules. Please see attached photo and let me know what you think. TOA series ii Amplifier PMK2 If any of the voltages on the drivers were off, the amp offset would be off, and you said you measured 0 volts on L, Just to double check, measure the voltage on the white. I agree that they appear to have been running very hot. Some resistors used here are fusible types and look fine but can go open circuit. Amazon Drive Cloud storage from Amazon.
Technical Specification User Guide [pdf ]. The PMK2 has a selectable input sensitivity to accommodate high or low inputs levels, a low cut switch to limit low frequency response, a master volume control, indicators for normal, signal, power, protect, and signal, and a turn-on delay which disconnects the output during power-up to prevent shock to the speakers. TOA series ii Amplifier PMK2 If any of the voltages on the drivers were off, the amp offset would be off, and you said you measured 0 volts on L, Just to double check, measure the voltage on the white. I would start testing transistors in the power amplifier section, and look for burnt parts. International orders are processed the next shipping day. Otherwise, the resistors are damaged I would say. Write a customer review. Don’t see what you’re looking for?
All times are GMT Learn more about the program. I would start testing transistors in the power amplifier section, and look for burnt parts. Did you find this forum helpful? Be the first to review this item. The protect light is on and the amplifier will not function.
TOA Series II Amplifier Pmk2 w Single Channel | eBay
I see TOA forgot protection diodes to the massive 70V line output transformer, so it’s not a tough design despite the reliability claims. Find More Posts apmlifier Thedoc The 3 pin resistors are just two resistors with a common center pin the single pin endthey should read.
I agree that they appear to have been running very hot. Also I did disconnect some connectors one at a time from the mainPCB to see if I could isolate the issue. I would keep checking parts. Page 1 of 1 Start over Page 1 of 1. Find More Posts 090 Bterrier.
: TOA PMK2 Series Single Channel Watts Power Amplifier: Electronics
That circuit also drives the protection led That pc board has been running hot for a long time to do that, it did not just turn dark all of a sudden. Enter o-912mk2 zip code smplifier refresh estimated delivery time.
Originally Posted by redwire Note this amplifier uses a servo circuit op-amps M which work to keep the idling output at 0VDC.
I just cant seem to find it. ComiXology Thousands of Digital Comics.
Don’t forget to order the input module separately if you need one. Not Specified by Manufacturer. Can someone assist me in troubleshooting this issue? Amazon Renewed Refurbished products with a warranty.
Measured voltage on Q and Q Feedback If you are a seller for this product, would you like to suggest updates through seller support? Amazon Second Chance Pass it on, trade it in, give it a second serues.
R at 27R sorta matches the listed voltages for about 6.
Don’t forget to order the rack-mount kit separately as it is not included. There are about 5 diodes in total that I am getting questionable readings from, but again I am new to this so maybe I am not testing properly? It offers a wide frequency response, low noise and distortion, and TOA’s well-known quality and reliability.
amplifir TOA series ii Amplifier PMK2 If any of the voltages on the drivers were off, the amp offset would be off, and you said you measured 0 volts on L, Just to double check, measure the voltage on the white.
Module slot accepts a variety of plug-in modules for easy customizability Wide Frequency Response Low Noise and Distortion 25V, 70V, and 8 ohm transformer-isolated outputs Direct input for connection of an audio source Direct low-impedance output mode for non-transformer operation Selectable Input Sensitivity Protection circuitry for overload, short circuit and overheating Turn-on delay disconnects output at power-up Master volume control Status indicators for normal, clip, power, protect, and signal Includes volume control security knob Optional rack mount kits available.
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TOA 900 Series II P-906mk2 60w Amplifier
Add both to Cart Add both to List. Union P-9112mk2 My Country: See attached schematics and troubleshooting guide. Fulfillment by Amazon FBA is a service we offer sellers that lets them store their products in Amazon’s fulfillment centers, and we directly pack, ship, and provide customer service for these products.
I looked at a couple other schematics and R is shown as a 27 ohm It may depend on the version ‘A’ vs ‘W’ Here is another manual, schematic at the end. If OP can measure some voltages on the transistors, or just keep testing parts. Something we hope you’ll especially enjoy: Get to Know Us.