KCA-BT100
7
■
Check of calls when parts or
Processor Unit (X32-) is replaced
• After parts or Processor Unit (X32-) is replaced, connect
Bluetooth compatible cell phone to KCA-BT100, and check
Hands-free calls.
• Telephone number that was used to check calls is recorded
in a telephone directory.
• After the completion of the check, please remove the rel-
evant telephone number from the telephone directory.
■
When replacing parts
1. Processor Unit (X32-) has been subjected to various RF
performance tests before factory shipment.
Therefore, Bluetooth RF Module (A1) and Main
µ
-COM (IC3)
cannot be replaced.
When Bluetooth RF Module (A1) or Main
µ
-COM (IC3) has
to be replaced, replace Processor Unit (X32-) of Processor
Unit Assy (Y33-2680-00) that is available for the service
replacement. (Refer to Ref. No. 10 of the Exploded View)
Note that the Chassis (702) of Y33-2680-00 does not have
Serial Number Sticker.
Thus, do not use the Chassis of Y33-2680-00 when replace-
ment.
2. Telephone directory data is stored in the Flash Memory
(IC8).
Replacing the Flash Memory (IC8) clears the telephone di-
rectory data.
■
Troubleshooting
Error symptoms
Check points
Bluetooth device cannot be searched from cell phone.
IC2 (System
µ
-COM), IC3 (Main
µ
-COM) and their perimeter.
Changer source selection is also impossible.
Q6 (BU5V AVR) and its perimeter.
Bluetooth device cannot be searched from cell phone.
A1 (Bluetooth RF Module), IC6 (3.3V
→
5V Conversion) and their perimeter.
Changer source selection is possible.
IC9 (3.3V REG.), IC10 (5V REG.) and their perimeter.
Bluetooth device can be searched from cell phone but
IC5 (5V
→
3.3V Conversion) and its perimeter.
connection (authentication) is impossible.
Changer source selection is possible.
The telephone directory data becomes NO DATA after the
IC8 (Flash Memory) and its perimeter.
telephone directory data is transferred from the cell phone.
Bluetooth device can be searched only when the device is
L1 (Chip ANT.) and its perimeter.
brought near to cell phone.
Input/Output of the hands-free audio are NG.
IC7 (PCM CODEC), Q10 (A8V AVR) and their perimeter.
(Cannot send or receive call)
Audio level of hands-free call is low.
IC13 (BPF) and its perimeter.
Cannot send call.
IC12 (MIC Input AMP) and its perimeter.
Receiving audio does not come out of the Head Unit speaker.
IC11 (Analog SW) and its perimeter.
REPLACING PARTS