17
KDC-BT7539U/BT8041U
/BT8141UY/BT838U
3. In the Phone Selection mode in the Test mode, 5 coun-
terpart units are listed. Rotate the control knob on the
right or use the [FM] / [AM] key to select the desired
counterpart unit, and then press the [
] / [
] key brief-
ly to connect with the counterpart unit.
4. The symbol,
∗
lights up at the left side of the selected
counterpart unit name and the Audio Loop Back test
mode turns ON after the completion of the connection.
5. Turn [SRC] key brie
fl
y twice to switch the source to the
BT Audio.
6. When the source is BT Audio, voice from the Mic can
be heard from the Speaker as shown in the below il-
lustration, where the voice passes through the paths,
q
through
r
.
Speaker
MIC
;
:
.
@
Test mode (dedicated)
Counterpart unit
This unit
●
ROM data transfer
This function is used to transfer E2PROM data (installer
memory) inside of the front-end to mother E2PROM of
the backup, and to transfer the data back from the moth-
er E2PROM to the E2PROM of the front-end.
1. While in the source is STANDBY, press the [FNC] key
brie
fl
y to show the multi-function display and press the
[ ] key brie
fl
y to enter the Menu.
2. Rotate the control knob on the right or use the [
] / [
]
keys to select ROM Read Mode or ROM Write Mode in
the MENU items and press and hold the [ ] key for 1
second to turn on the Mode.
Operation
Display
Description
Start resetting by
pressing “[FNC]
key + [EJECT]
key”
All lights ON
Test mode ON
Press [FNC] key
to select [Menu]
mode.
“ROM_Read_Mode”
Front-end
→
Mother
Process to transfer data
“ROM_Write_Mode”
Mother
→
Front-end
Process to transfer data
Operation
Display
Description
(In the above
ROM Read Mode)
Press and hold
[ ] key (for one
second) to select
Yes.
“ROM_Reading…”
Front-end
→
Mother
ROM data transfer in progress
“ROM_Read_OK”
Front-end
→
Mother
ROM data transfer OK
“ROM_Read_NG”
Front-end
→
Mother
ROM data transfer NG
(In the above
ROM Write Mode)
Press and hold
[ ] key (for one
second) to select
Yes.
“ROM_Writing…”
Mother
→
Front-end
ROM data transfer in progress
“ROM_Write_OK”
Mother
→
Front-end
ROM data transfer OK
“ROM_Write_NG”
Mother
→
Front-end
ROM data transfer NG
●
Dual Zone
• If the [AUTO] or [TI] keys is pressed briefly while in a
source other than STANDBY, 2ZONE is switched be-
tween ON / OFF.
●
Backup current measurement
If reset while in Acc OFF (Back Up ON) condition, MUTE
terminal goes off 2 seconds later, rather than 15 seconds.
(During this time, the CD mechanism does not function.)
●
OPEL communication
(OPEL / OEM display supporting model)
OPEL communication line while in the test mode outputs
the following. (Communication line output condition is
switched every 500msec.)
CE
DATA
CLK
500msec
500msec
500msec
●
Special displays while all lights are on
When all lights are on with STANDBY source, if the fol-
lowing keys are pressed, the following messages are dis-
played.
[FM]
key
Key pressed brie
fl
y: ROM correction version is displayed
(Display) SYS_ROM_R1234
(Display) PAN_ROM_R1234
(Display) BOL_ROM_R1234
When E2PROM is not installed: ROM_ERR__
When not written in: ROM_R - - - -
When data not matching: ROM_R
∗∗∗∗
∗
1 “BOL ROM” can be shown only in the model with USB.
TEST MODE
