Pioneer MVH-290BT Service Manual page 8

1
Detachment is not illuminated.
Check the power of MAIN BOARD PCB (Connector J9 2-pin: LAMP (5V)).
If an error occurs in the power, replace the product (otherwise MBL CMPX MODULE if it is available).
A
If you do not find any error, replace the detach grill (Detachable Assy).
(Check Point)
B
LAMP(5V)
No sound of BT audio
Check if the BT device is correctly paired or not?
*How to check: See "BT CONNECT" of "Bluetooth settings"
Bluetooth settings
C
Menu Item
BT CONNECT
[ON], [OFF]
In case correctly paired : Refer to "No sound from the speakers" for further troubleshooting.
In case incorrectly paired : Attempt to pair the BT device again.
In case correctly paired: Play the BT audio and if it is still no audio, refer to "No sound from the speakers" for further troubleshooting.
In case incorrectly paired: Check if other BT devices can be paired or not.
In case correctly paired with other BT devices: The cause should be BT device factor.
In case incorrectly paired with other BT devices: Replace the product (otherwise MBL CMPX MODULE if it is available).
D
Defect of BT Telephone use
Can't hear receiver voice: Refer to "No sound of BT AUDIO" for further troubleshooting.
How to check
Check if there is any signal on the line of "MIC-P" and "MIC-N" on the MIAN BOARD PCB. (Check between the line and GND.)
In case of no signal: The cause should be microphone factor
In case of correct signal: Replace the product (otherwise MBL CMPX MODULE if it is available).
(Check point)
E
Check point of MIC-P
(One side of R516)
F
Check point of MIC-N
8
1
2
K5V
K5V
LAMP
Description
Display the paired Bluetooth devices. "*" appears on the
device name when the Bluetooth connection is
established.
(One side of R517)
MVH-290BT/XEUC
2
3
A5V
A5V A5V
3
4
4