IBM THINKPAD 760C/CD (9546) - Manual (Page 425)

Thick-Type Models (Other Models and 760E)
When replacing:
1. The following figure shows the cable routing for
models 760XL/760XD.
2. When replacing the DSP card or the audio (ESS)
card, make sure that the connector on the card is not
loose. If the connector does not connect properly, no
sound will be produced.
ThinkPad 760 (9546, 9547) 413