Instruction/ maintenance manual of the product SX-450 Pioneer
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? 9. ADJUSTMENT 9.1 AM SECTION 1. Through a 1k ohm resistor, connect an AM signal generator to the AM antenna terminal. Set for 40OHz at 100dB and 3O% modulation. 2 Connect AC voltmeter to TAPE REC iack (L or R). Set FUNCTION switch to AM position. Set AM signal generator and SX-450 dial in- dication to point A (600kHz).
9.2 FM SECTION 1. Through 300 ohm dummy antenna, connect FM signal generator to the 300 ohm FM antenna terminals and set for 4OOHz at 100dB and IO0% modulation. 2. Connect AC voltmeter and distortion meter to TAPE REC jack (L or R). 3. Set FUNCTION switch to FM and MUTING switch to OFF.
9.3 MPX SECTION 1. Through 300 ohm dummy antenna, connect FM signal generator to 300 ohm FM antenna terminals. 2. Connect multiplex signal generator to extemal modulation terminals of FM signal generator. 3. Connect oscilloscope horizontal input to MPX signal pilot output and vertical input via probe to TP (No.
9.4 POWER AMPLIFIER SECTION (IDLE CURRENT} 1. Set BASS and TREBLE controls ro center a r'' position. 2. Nothing should be connected to the INPUT jacks of SX-450 and an 8 ohm dummy load should be connected across the SPEAKER terminal.
)10. DrAL CORD STRTNGTNG Remove the Front panel (See page 14, 15). 1. Turn tuning drum fully clockwise (as viewed from X direction in Fig. 13). 2. Tie one end of cord to stud on inner section of tuning drum (more easily performed by loosen- ing setscrew and temporarily removing tuning drum from shaft).
An important point after buying a device Pioneer SX-450 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Pioneer SX-450 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Pioneer SX-450 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Pioneer SX-450 you will learn all the available features of the product, as well as information on its operation. The information that you get Pioneer SX-450 will certainly help you make a decision on the purchase.
If you already are a holder of Pioneer SX-450, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Pioneer SX-450.
However, one of the most important roles played by the user manual is to help in solving problems with Pioneer SX-450. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Pioneer SX-450 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
