Sony WRR-802A, Service Manual, Page: 14 / 64

2-2
WRR-802A (U)
2-3. Setting / Release of Muting Function
Set or release the following functions by operating the button on the front panel of the WRR-802A.
Function Setting / Release
. Muting OFF by RF signal input level Muting OFF mode setting:
. Muting OFF by tone squelch When pressing the “GP” and “CH” buttons, turn ON the POWER switch.
.
Muting OFF by noise squelch Muting OFF mode releasing (Normal operation mode):
Turn OFF the POWER switch.
Default Factory Setting : Muting OFF mode is released (Normal mode).
2-4. Service Information for Tuner Unit
2-4-1. Tuner Unit Removal
1. Remove the four screws (BTT M3) from the side panel, and remove the cover.
2. Remove the screw (BVTT2.6
x
5).
3. Remove the gasket (T1) and gasket (T2) from the rail and the tuner unit.
4. Desolder the connection plate from the lid of the tuner unit.
5. Pull out the tuner unit in the arrow direction.
Tuner unit
Cover
Rail
Gasket (T1)
Gasket (T2)
BTT M3
Connection plate
BTT M3
BTT M3
BTT M3
BVTT
2.6
x 5