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Service Hints & Tips

Document ID: JBAR-3VPRZR

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IBM PC300PL - ECA020, Audio recording signal quality condition

Applicable to: World-Wide

PURPOSE:
The purpose of this ECA is to correct an audio recording signal quality condition when recording via the microphone jack, internal CD-ROM, or Audio Line-In jack at the rear of the system unit.

FEATURES:



 Type,                  Machines Affected

 Model,   With          and/or Feature/Device     B/M to be    Service  System

 Stage    B/M           Description               Installed    Hours    Hours



 6562     B/M0000000    6562 PC300PL              B/M0000000   00.7     00.3

                        ALL MODELS



 6592     B/M0000000    6592 PC300PL              B/M0000000   00.7     00.3

                        ALL MODELS

PHYSICAL CHECK:
Affected system board FRU P/N07L7353 will contain the following manufacturing part numbers and header codes:



 MFG P/N     Header Code

   _______    _____________

   93H9792       J13Z3

   07L6864       J14A2

   07L6864       J149Y

   07L7352       J14EQ

PREREQUISITES:
None

COMPANION:
None

CONCURRENT:
None

DETAIL:
When using either a microphone or the internal CDROM drive to record sounds to the hard disk via the integrated audio device, the quality of the recording is poor.

The poor audio quality, or distortion, will worsen as the Record Volume is increased to maximum.

Customers recording from an external device (such as an external CD player or stereo) via the Audio Line-In jack at the rear of the system unit will also experience the audio quality recording condition.

NOTE: OEM audio adapters are not affected by this condition.

NOTES:
For customers that do not require the use of the Audio Line-In jack at the rear of the system unit, the recording quality condition can be eliminated by placing a check in the "Mute" box under the "Line In" control column in the "Crystal Audio System Mixer" recording control window.

For customers requiring the use of the Audio Line-In jack at the rear of the system unit, replace the system board with FRU P/N07L7353.

==> This ECA will expire on September 30, 2000 <==

SAS KEYWORDS:
PSY2 PSY2BRD PSVP PSVPBRD
CDT CDTBRD D/T6562 D/T6592
6562 6592 07L7353 SERVICER ONLY

Search Keywords

Document Category

Audio, ECA, Retain

Date Created

22-06-98

Last Updated

23-06-98

Revision Date

22-06-99

Brand

IBM PC

Product Family

PC 300PL

Machine Type

6562, 6592

Model

all

TypeModel

Retain Tip (if applicable)

H164001, ECA020

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