eclipse xa5000

DREW028 · 6th April 2012, 11:55 PM

Does anyone have a repair manual for this amp? Or know the layout?

First time owning and working on a 5 channel amp. The sub channel power supply if burnt q35 through q38. The gate resistors are damaged also. They are marked 470. 47 ohms correct?

DREW028 · 7th April 2012, 02:52 AM

Testing irf9640 P channel FET red probe drain black probe source I'm reading .819 on one fet and .732 on 2 other fets. Are they bad?

brandes.cm · 7th April 2012, 03:50 AM

Testing in circuit or out? I only asked because other components can alter your reading.

sent from an IRFZ48N

DREW028 · 7th April 2012, 03:53 AM

Out, and reverse procedure of testing an n channel.

Perry Babin · 7th April 2012, 06:33 AM

470 = 47 ohms (4, 7, and 0x10 multiplier).

The probe orientation is reversed when checking P-channel FETs.

DREW028 · 7th April 2012, 11:56 AM

Yes, i got the test procedure from your website. Are my readings from the drain and source ok or do you think they are defective?

DREW028 · 7th April 2012, 05:56 PM

resistors r30 marked 102=1kohm. Value is .431ohms so its bad. How do I determine the watt rating. One side is connected to the source of the PS FETs and amp ground terminal. I cannot trace the other side

brandes.cm · 7th April 2012, 07:27 PM

Is that .431k ohms? Or .431 ohms? The latter would suggest its bad or something in parallel is shorted.

sent from an IRFZ48N

DREW028 · 08:31 PM

413.7 ohms. I was in a hurry typing, sorry. There is a another resistor in the circuit r40 which reads .959kohms so I'm thinking its just the r30 resistor thats bad. Also the power supply FETs are removed (this is the sub channel).

brandes.cm · 8th April 2012, 12:23 AM

Remove it and measure out of the circuit.

sent from an IRFZ48N

6th April 2012, 11:55 PM	#1
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	eclipse xa5000 Does anyone have a repair manual for this amp? Or know the layout? First time owning and working on a 5 channel amp. The sub channel power supply if burnt q35 through q38. The gate resistors are damaged also. They are marked 470. 47 ohms correct?

7th April 2012, 03:50 AM	#3
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Testing in circuit or out? I only asked because other components can alter your reading. sent from an IRFZ48N __________________ BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

7th April 2012, 06:33 AM	#5
Perry Babin diyAudio Member Join Date: Nov 2003 Location: Louisiana	470 = 47 ohms (4, 7, and 0x10 multiplier). The probe orientation is reversed when checking P-channel FETs. __________________ Links >> Basic Car Audio Amp Repair * Basic Car Audio Electronics * New Site * Basic Switching Power Supply Design * Basic Computer Skills << Links

7th April 2012, 07:27 PM	#8
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Is that .431k ohms? Or .431 ohms? The latter would suggest its bad or something in parallel is shorted. sent from an IRFZ48N __________________ BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

7th April 2012, 08:28 PM	#9
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	413.7 ohms. I was in a hurry typing, sorry. There is a another resistor in the circuit r40 which reads .959kohms so I'm thinking its just the r30 resistor thats bad. Also the power supply FETs are removed (this is the sub channel). Last edited by DREW028; 7th April 2012 at 08:31 PM.


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7th April 2012, 02:52 AM	#2
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	Testing irf9640 P channel FET red probe drain black probe source I'm reading .819 on one fet and .732 on 2 other fets. Are they bad?

7th April 2012, 03:53 AM	#4
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	Out, and reverse procedure of testing an n channel.

7th April 2012, 11:56 AM	#6
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	Yes, i got the test procedure from your website. Are my readings from the drain and source ok or do you think they are defective?

7th April 2012, 05:56 PM	#7
DREW028 diyAudio Member Join Date: Jun 2004 Location: chicago	resistors r30 marked 102=1kohm. Value is .431ohms so its bad. How do I determine the watt rating. One side is connected to the source of the PS FETs and amp ground terminal. I cannot trace the other side

8th April 2012, 12:23 AM	#10
brandes.cm diyAudio Member Join Date: Sep 2009 Location: Wisconsin	Remove it and measure out of the circuit. sent from an IRFZ48N __________________ BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator

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