DHC-EX880MD, DHC-MD717, MDS-EX880, MDS-MS717 - Sony Audio Service Manual (repair manual). Page 4

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• As this set has not own power supply, it does not operate inde-

pendently. Therefore, during servicing, connect it to the Pre-Main
amplifier Unit (TA-EX880/MS717) of DHC-EX880MD/MD717.
Also, connect the Tuner Unit (ST-EX880/MS717) because the
POWER switch is not provided to the Pre-Main amplifier Unit
(TA-EX880/MS717).

If TA-EX880/MS717 and ST-EX880/MS717 are not available,
use the Power Feed Jig (PFJ-1).
In this case, turn on the POWER switch on the Power Feed Jig,
then press  

p button and

[DISPLAY]

button on the set simul-

taneously, so that the power is supplied.

In the AGING mode, the MD operation can be checked.

• If an error occurs:

The aging operation stops.

• If no error occurs:

The aging operation continues repeatedly.

1. Operating Method for AGING Mode with the system power

turned on, press the

[POWER]

button while pressing the

[MENU/NO]

button and

[STEREO/MONO]

button on the Tuner

Unit (ST-EX880/MS717) simultaneously, so that the AGING
mode becomes active.
To exit from the AGING mode, press the

[POWER]

button,

and turn off the power.

Set

Pre-Main AMP

Unit

(TA-EX880/MS717)

Tuner Unit

(ST-EX880/MS717)

AC IN

AC IN jack

Connector cable (17P)
(attached to the set)

SYSTEM CONTROL terminal

SYSTEM CONTROL terminal

SYSTEM CONTROL terminal

AC plug cord

Power feed jig

(PFJ-1)

P707, 909
CDP/TC

CN308 (17P)
SYSTEM CONTROL terminal

Set

Connector cable (17P)