Toshiba satellite A20 series Maintenance Manual page 367

4 Replacement Procedures
7. Turn the backlight unit face up and remove the upper diffusion sheet (K), lens sheet
(L) and light guide (M).
NOTE: The light guide and sheets are reused. Be careful not to scratch or soil
them.
Figure 4-120 Replacing Sharp fluorescent lamp (SXGA+) (8)
4-162
Do not remove the reflection
sheet under the light guide.
4.30 Fluorescent Lamp
(K) Upper diffusion sheet
(L) Lens sheet
(M) Light guide
Satellite A20 Maintenance Manual (960-444)