NAD C272 Repair Manual

$7.99

NAD C272 - It's a complete service manual, and it's in PDF format. It contains circuit diagrams ( schemas ) etc. It also usually contains parts catalog. After placing order we'll send You download instructions on Your email address. See below for delivery information

The manual is available only in language(s): English

Link to manual will be sent on Your email address after You place order.

This product was added to our catalog on Monday 07 May, 2007.

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Glen Meyer - 10/26/2008

Very fast service, manual is well scanned and clear, but the Appendix A containing PC Command table and Control codes are missing

John Craig - 07/31/2006

Very nice site and the manual is great. A life-saver. Thank you so much!

Grace Towers - 05/22/2008

Very nice clear manual with specifications, exploded views and schematics, been searching for one of these for years. Thanks.

Patrick Guice - 04/23/2008

Phenomal manual great resoulution and very legible. Will become very helpfull in future for parts and service.

Jim Carrier - 08/02/2006

Outstanding and fast service! I received service manual in a moment after order. Thanks to this manual I can use my printer again!

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Click to see text excerpt from the manual

ALIGNMENT PROCEDURE (C272)

I. INITIAL ADJUSTMENT (No load connected)
A. OUTPUT OFFSET VOLTAGE
1. Connect a DC Millivoltmeter to L Channel TP2 (DC) and TP8 (GND).
2. Turn unit ?ON? and adjust VR301 (100ohms) to get a reading of 0V+/-30mV.
3. Connect a DC Millivoltmeter to R Channel TP5 (DC) and TP7, then adjust
VR401(100ohms) to get a reading of 0V+/-30mV reading on meter.

B. IDLING CURRENT
1. Connect a DC Millivoltmeter to L Channel TP1 (IDL) and TP3 (IDL), then adjust
VR302 (500 ohms) for 6~7.5mV reading on meter.
2. Connect a DC Millivoltmeter to R Channel TP4 (IDL) and TP6 (IDL), then adjust
VR402 (500 ohms) for 6~7.5mV reading on meter.

II. ISC ADJUSTMENT (WITH LOAD CONNECTED)
1. Connect a DC Millivoltmeter to Power Board CB725, and connect 4 ohms load to
both L&R speaker output terminals. Then feed 20kHz signal to Fixed In RCA.

2. Turn unit ?ON? and try to get 15W on speaker output terminal. Then adjust VR701
(82kohms) to get a reading of 0V+/-10mV.

3. Change the load to 8 ohms and try to get 160W on speaker output terminals.
Then adjust VR701 (82kohms) to get a reading of 1.4V+/-30mV.

III. FINAL ADJUSTMENT
Repeat procedure A and B for offset voltage and idling current alignment respectively.