Sony KDL-22EX420 Service Manual page 33

Trouble Shooting
3-6-3. RF Remote Commander Malfunction (Not applicable for this manual)
Symptom improvement
Commander
malfunction
NG
Re-Pairing action
Symptom improvement
RF remote commander is
Un-registered
Replace the Harness
NG
between the B* Board
and the RF Module
Symptom
improvement
Harness
NG
Use new remote
Use new batteries
and new batteries
Symptom improvement
Batteries low power
NG
Replace
the RF Module
Symptom
improvement
RF Module
32
KDL- 22, 26 EX420, 32,40,46 EX520
KDL- 22 EX423, 26 EX423, 32 EX420, 32, 40, 46 EX523
NG
Remote
Note: B* Board
B* board
RM-GD020, CD013
RM-GD020