Yamaha MX-800/U - Page 11

TROUBLESHOOTING
Before assuming that your amplifier is faulty, check the following list. If you still have any doubts or questions, contact your nearest YAMAHA
dealer.
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| No power even when the POWER switch is ON.
No sound is heard from the left and/or right @ The speaker cords are not properly connected.
speaker{s): | @ Either or both LEVEL controls are set to — codB.
| @ The cords from the control amplifier are not secure.
@ The control amp's balance is setto the extreme left @ Adjust the control amp's balance control.
TESHNS:
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.
or right.
The sound ceases suddenly, and the PRO- @ The speaker protection circuit has activated. @ Turn power OFF, then ON.again to reset the speaker protection
TECTION indicator is lit. circuit. Also see CONNECTING SPEAKERS on p. 8.
@ There is a malfunction in the amplifier. @ Consult your YAMAHA dealer. |
| Unnatural sound lacking bass. @ The speaker polarities are reversed. @ Connect the speaker wires with the correct + and — polarity.
SPECIFICATIONS
Minimum RMS Output Power Per Channel. intermodulation Distortion
20Hz ~ 20kHz 0.003% THD, 8 ohms 170W Rated Output/8 ohms 0.003%
OUr e THD, 6 ohms n aay Signal to Noise Ratio (IHF-A-Network) |
o Ü02%THD4jJoms OW MAIN IN (shorted) 124dB
Dynamic Power Per Channe! | MAIN IN (5.1 kQ terminated) 120dB
(by IHF Dynamic Headroom measuring method) Residual Noise (IHF-A-Network) 24uV
8 ohms 270W —— n Y
6 ohms 330W Channel Separation
4 ohms 440W. Input shorted, terminated,
2 ohms 570W tkHz/10kHz 89dB/72dB
Tohms | 600W Power Supply USA., Canada AC120V, 60Hz
Dynamic Headroom (U.S.A., Canada only) | Australia AC240V, 50Hz
8 ohms - 2.01dB st General AG110/120/220/240V, 60/50Hz
6 ohms 2.28dB Power Consumption USA., Canada 650W, 800VA
4 ohms | | _ 3.82dB Australia 1,150W
Power Band Width | General 520W
0.03% THD 85W, 8 ohms | 10Hz ~ 60kHz AC Outlet
Damping Band Width Unswitched x 1 200W max.
1kHz, 8 ohms | | 90 Dimentions (W x H x D) 435 x 165 x 425mm
input
Sensitivity/Impedance
|
:
(17-1/8”
x
6-1/2”
x
16-47/64”)
MAIN IN 1.32V/60kQ ` Weight 14.5kg
Frequency Response (20Hz ~ 20kHz) | +0, —0.2dB .
Total Harmonic Distortions (20Hz ~ 20kHz) | Specifications subject to change without notice.
MAIN IN to Sp Out, 85W/8O | 0.003%
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