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PIONEER SC-05/KUXJ/CA
Manual de Servicio

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Manual completo
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Descripción del PIONEER SC-05/KUXJ/CA Manual de Servicio

Manual de servicio completo en formato digital (archivo PDF). Los manuales de servicio por lo general contienen diagramas de circuitos, tarjetas de circuitos impresos, consejos para reparación, diagramas de cableado, diagramas de bloque y lista de refacciones. El Manual de Servicio (a veces llamado Manual de Reparación) es usado principalmente por los técnicos.

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The manual is available in languages: English

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5

6

7

8

Step 7: 1st DSP AO
IC2701 (Pin 111) RESET

Step 8: 2nd DSP AU
IC2801 (Pin 47) RESET
A

Is the logic of DSP1XRST "H" ? Yes

No

Check the output of Pin30 of IC2201 (DSP uCOM) on the path.

Is the logic of DSP2XRST "H" ? Yes

No

Check the output of Pin126 of IC2201 (DSP uCOM) on the path.

Is the logic of RST_1 maintained at "H"? (Does it fall to become "L" periodically?) Yes

No

It is likely a boot error. (It is very difficult to diagnose which peripheral part of the DSP is in failure.)

Is the logic of DSP2XRST maintained No at "H"? (Does it fall to become "L" periodically?) Yes

The 2nd DSP or the communication path is in failure.
B

AP
IC2701 (Pin 117) DSP1SS0 For the following diagnosis, a digital oscilloscope must be used.

AV
IC2801 (Pin 37) DSP2SS For the following diagnosis, a digital oscilloscope must be used.

Does the logic become "L" for a moment when the input stream is changed?

No

Check the output of Pin32 of IC2201 (DSP uCOM) on the path.

Does the logic of DSP2XRST periodically become "H" or

No

Check the output of Pin128 of IC2201 (DSP uCOM) on the path.

AQ

Yes DSP1SS1

AW

"L"? Yes DSPSCK

IC2701 (Pin 112)

C

IC2801 (Pin 36) Does the logic become "L" for a moment when the input stream is changed?

No

Check the output of Pin28 of IC2201 (DSP uCOM) on the path.

Does clock signal output have DSP2SS for a period of "L"?

No

Check the output of Pin5 of IC2201 (DSP uCOM) on the path.

AR

Yes DSPSCK

AX

Yes DSPMOSI

IC2701 (Pin 115) Does clock signal output have DSP1SS0 and DSP1SS1 for a period of "L"?

IC2801 (Pin 34)

No

Check the output of Pin5 of IC2201 (DSP uCOM) on the path.

Does clock signal output have DSP2SS for a period of "L"?

No

D

Check the output of Pin4 of IC2201 (DSP uCOM) on the path.

AS

Yes DSPMOSI

AY

Yes DSPMISO

IC2701 (Pin 114) Does clock signal output have DSP1SS0 and DSP1SS1 for a period of "L"?

IC2801 (Pin 35)

No

Check the output of Pin4 of IC2201 (DSP uCOM) on the path.

Does clock signal output have DSP2SS for a period of "L"? Yes

No

The 2nd DSP is in failure. Replace it.
E

AT

Yes DSPMISO

IC2701 (Pin 113) Does clock signal output have DSP1SS0 and DSP1SS1 for a period of "L"? Yes

It is very difficult to diagnose which part is in failure. No Replace IC2701.

It is very difficult to diagnose which part is in failure.
F

SC-07
5 6 7 8

37


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