Bowers & Wilkins 804 D3 Technical Manual page 50

Bowers & Wilkins TECHNICAL SUPPORT
5. Speaker Bi-Wiring
Check RH/LH speakers are working Bi-wire Yes/No
10. Tweeter & Motor Assembly
Does it need replacing? Yes/No (LH/RH or Both)
Does the Grille need replacing? Yes/No (LH/RH or Both)
12. Tweeter Unit Assembly
Does it need replacing? Yes/No (LH/RH or Both)
13. Mid-Bass Speaker Assembly
R/H Speaker does it need replacing? Yes/No (LH/RH or Both)
L/H Speaker Does it need replacing? Yes/No (LH/RH or Both)
14. Draw Bar Assembly
Does it need replacing? Yes/No (LH/RH or Both)
15. 5"MF Cabinet Tube Assembly
Does it need replacing? Yes/No (LH/RH or Both)
16. Bass Unit Speaker Assembly
R/H Speaker does it need replacing? Yes/No (LH/RH or Both)
L/H Speaker Does it need replacing? Yes/No (LH/RH or Both)
17 & 18. 6"MF Cabinet Tube Assembly
Does one or two need replacing? Yes/No (LH/RH or 1,2,3 or 4)
19. Terminal Tray Assembly
Does it need replacing? Yes/No (LH/RH or Both)
20. HF Crossover Assembly
Does it need replacing? Yes/No (LH/RH or Both)
21. LF Crossover Assembly
Does it need replacing? Yes/No (LH/RH or Both)
11. Final Functional Test
Connect 804D3 Speakers to Amp/CD Player and check for Sound
Check audio for Tweeter/Mid- Range & Bass Units output is working
Check RH/LH speakers are working Bi-wire Yes/No
Check RH/LH Tweeters/Mid-Range/Bass speakers for leakage using a Stethoscope
Check RH/LH Terminal Links are fitted
The contents of this document and associated files contain confidential information that is propriety to Bowers & Wilkins, and
are intended solely for the purpose of servicing the product. The information is intended for use by service technicians familiar
with electronic products. No part of the contents should be supplied or published elsewhere.
Page 50 of 51
Yes/No
Yes/No
Yes/No
Yes/No
© Bowers & Wilkins 2016