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Yamaha XM4180 Support Question

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Question posted by vasantkumar58 on October 31st, 2021

Ch A Shows Protection Led On And Ch B Shows Protection And Limit Led On.

CH c & CH d shows no protection.we have replaced the main semiconductor fuse 5 A on CH b.and replaced a leaky capacitor C114 also. But the condition does not improve.can you suggest further checks to repair this fault ?

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Answer #1: Posted by hzplj9 on October 31st, 2021 9:44 AM

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hzplj9

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If you have changed one leaking cap then it is likely there are a few more that have lost capacitance. It would in the first instance if the fuse no longer blows and you have checked all the voltages. Replace as many capacitors as possible in the power module. It will pay dividends in the future and eliminate one likely cause of the fault. Once that has been done you can then proceed to check transistors and diodes.

This is a user guide for this model:

https://www.manualslib.com/manual/1099995/Yamaha-Xm4180.html

A service manual is necessary to fault find. This is a link:

https://elektrotanya.com/yamaha_xm4080_xm4180_sm.pdf/download.html

It will give you more information than the user guide.

Hope that helps solve your problem.

Related Yamaha XM4180 Manual Pages

Owner's Manual - Page 2

...! IMPORTANT: When connecting this apparatus during lightning storms or when unused for replacement of the obsolete outlet. 10 Protect the power cord from being walked on the top of Graphical Symbols The ... OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. (98-6500) 2 XM4180/XM4080/XH200 Owner's Manual Modiﬁcations not expressly approved by Yamaha may be used , use...

Owner's Manual - Page 3

...to an appropriate outlet with a protective grounding connection. Maintenance • ... in damp or wet conditions, or place containers on...the minimum level. If the mains outlet is a sudden loss ...should appear to the internal components. • Do not place...precautions include, but are not limited to be dropped or damaged...XM4180/XM4080/XH200 Owner's Manual 3 1 Use of other property.

Owner's Manual - Page 4

...ﬁ ed Yamaha service personnel about replacing defective components. Company names and product names used in... the colours of the wires in the mains lead of this apparatus may not match ... by Yamaha-Kemble Music (U.K.) Ltd. (3 wires) XM4180 XH200 This mark indicates a dangerous electrically live terminal....When turning on the AC power in your audio system, always turn on the device (vents,...

Owner's Manual - Page 5

...frequency swit- Main features include On the XM4180/XM4080: ...possible audio performance. On the XH200: • Enables parallel connection to the XM4180,...XM4180/XM4080/XH200: • Protection includes power on/off muting, DC detection, temperature, and protection indicator. • Variable-speed, low-noise cooling fan system ensures high reliability even under the most demanding conditions...

Owner's Manual - Page 6

...cool down. The protection system activates in air from overheating. 3 CLIP/LIMIT indicator A channel's...shows model XM4180/XM4080. 4 The POWER indicator lights up and the speakers are not obstructed. If a DC voltage is detected at the ampliﬁer's outputs The protection... seconds, the protection system deactivates automatically and the ampliﬁer is the main POWER switch. ...

Owner's Manual - Page 7

...6 78 * The illustration shows model XM4180. 1 XLR inputs connectors These balanced XLR-3-31 type connectors are used to connect the external device for channels A-B or C-D. Make sure not to input an audio signal to an inactive input ...other plug of the AC cable to an AC outlet that meets the power supply conditions printed on the label at the top of pair C/D. Note: When in the pair...

Owner's Manual - Page 8

... channel independently. Make sure not to input any signal to the D terminal. Make sure not to input any signal to the D terminal. Speaker * The illustration shows model XM4180. 6 Note In this case, the loads for A and B or C and D are connected in the ampliﬁer. ● Using as a four-channel mono ampli...

Owner's Manual - Page 9

... PARALLEL modes Connection conﬁgurations for BRIDGED mode or -+ +- -+ Minimum speaker impedance: 4 Ω Minimum speaker impedance: 4 Ω Minimum speaker impedance: 8 Ω * The illustration shows model XM4180. The XM4180 can be used with a total rated input of up to use speakers that can be connected to speakers with a total rated speaker input of...

Owner's Manual - Page 10

...careful when inputting low frequency signals; The number of speakers that meets the power supply conditions printed on page 14. 5 SPEAKERS terminals This unit includes barrier strip terminals, which ... 10W Rated input 10W 10W 10W 10 W x 20 speakers (200W) 10 W x 20 speakers (200W) 10 XM4180/XM4080/XH200 Owner's Manual 8 Hot , Cold Refer to set to 40Hz, make sure that support 70V or 100V ...

Owner's Manual - Page 11

... connect speakers with different rated input to the same channel, as the Yamaha ST15). You cannot connect a low-impedance speaker directly to ﬁx the wires. -G + XM4180/XM4080/XH200 Owner's Manual 11 9 Use a screwdriver to the XH200. or less 7 mm 5W 5W 5W 15W 15W 15W 5 W x 10 speakers (50W) 15 W x 10 speakers...

Owner's Manual - Page 12

...protect the power transistors. PROTECT/ MUTE indicator lights up There is appropriate for operation, as suggested in the wiring. The PC limiter circuit activates to 9 page for speaker polarities. Screw When using 5-way binding posts (XM4180...main causes of the connected speaker and make sure that ventilation around the terminal as the protective...in each case. Check the impedance rating ...

Owner's Manual - Page 13

... POWER/STANDBY SIGNAL CLIP/LIMIT PROTECT/MUTE MIN TYP TYP TYP TYP MAX MAX MAX TYP MIN MIN MIN MAX MIN TYP MIN TYP XM4180 210 W x 4 ...ch Euroblock connector (balanced) /ch 5 way binding post/ch Dsub 15P x 1 x 1 (Green/Orange) x 4 (Green) x 4 (Red) x 4 (Red) POWER switch on/off mute DC-fault...check with your Yamaha dealer. Inrush Current: 25A Conforms to Environments: E1, E2, E3 and E4 XM4180...

Owner's Manual - Page 14

... Att. min, (DIN AUDIO) Att. European models Purchaser/User Information speciﬁed in every locale, please check with your Yamaha dealer. PROTECTION Off/ Output On: +5 VDC, Zo=270 Ω 9 PROTECT STATUS CH C PROTECT STATUS CH B PROTECTION On/ Output Off: 0 VDC, Zo=High 10 PROTECT STATUS CH B - 11 PROTECT STATUS CH A PROTECT STATUS CH A 12 OUTPUT LEVEL CH D - Since speciﬁ...

Owner's Manual - Page 15

Refer to [W]. Test signal: Pink Noise, bandwidth limited from 22Hz to 22kHz 1W = 0.860kcal/h, 1BTU = 0.252kcal ...499 Thermal Dissipation Btu/h kcal/h 17 4 137 34 683 172 XM4180/XM4080/XH200 Owner's Manual 15 43 ■ Current Draw XM4180 standby idle 1/8 power 8Ω/ch 4Ω/ch 1/3 power 8Ω/ch 4Ω/ch Line Current (A) 100/120V 230/240V 0.08 0.04 1.0 0.5...

Owner's Manual - Page 17

... LIMITER XM4180[+34dBu] XM4080[+30dBu] PA LIMITER PA TEMP LIMITER PA LIMITER PA PROTECTION x4 RE SIGNAL x4 GR DC MUTE PS PROTECTION TEMP DC MUTE PS PROTECTION TEMP DC MUTE PS PROTECTION TEMP DC MUTE PS PROTECTION TEMP OUTPUT CH A (+) BRIDGE (-) BRIDGE CH B XM4180[+34dBu] XM4080[+30dBu] OUTPUT CH C (+) BRIDGE (-) BRIDGE CH D GR/OR (GR+RE) POWER SW POWER/STANDBY SUB TRANS +15V MAIN...

Owner's Manual - Page 18

..., Asia-Paciﬁc Music Marketing Group Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2313 HEAD OFFICE Yamaha Corporation, Pro Audio & Digital Musical Instrument Division Nakazawa-cho 10-1, Naka-ku, Hamamatsu, Japan 430-8650 Tel: +81-53-460-2441 Yamaha Pro...