Test Mode - Kenwood KDC-BT7539U Service Manual

KDC-BT7539U/BT8041U
/BT8141UY/BT838U
● How to enter the test mode
Press and hold the [FNC] and [EJECT] keys and reset.
(While "----" is being displayed, power can be ON for 30
minutes.)
● How to clear the test mode
Reset, momentary power down, ACC OFF, Power OFF,
detach the panel.
● Test mode default condition
• Source is STANDBY.
• Display lights are all turned on.
• The volume is at 30 (-10dB).
• LOUD is OFF.
• CRSC is off regardless of the availability of switching
function.
• SYSTEM Q is NATURAL (=FLAT).
• BEEP should always function when the key is pressed
briefl y.
• AUX is ON
• DISPLAY TYPE is TYPE A, SIDE is Display Tag.
• TUNER source display shall be as shown below:
<For European models> Upper row = PS/Frequency,
Middle row = Spectrum analyzer/Clock, Lower row =
Date
<For models of destination "K" and "M"> Upper row =
SNPS, Middle row = Spectrum analyzer/Clock, Lower
row = Date
• CD/USB source display shall be as shown below:
Upper row = P-TIME, Middle row = Spectrum analyzer/
Clock, Lower row = Date
• SOURCE SELECT shall be "2".
● Specifi cation of the test mode for tuner source
The frequency of 98.3MHz is received when the [4] key is
pressed in the TUNER FM mode.
(∗1) Only in the test mode, [1] key, [2] key, [3] key, [4] key,
[5] key and [6] key shall be displayed on the multi-
function key.
1. Press the [FNC] key briefly to make the multi-
function display.
2. Rotate the control knob on the right side and use
the [ ] / [
center.
3. Press the [ ] key briefl y to fi nalize the display.
(∗2) Perform the same operations as above on the keys,
[1], [2], [3], [4], [5], and [6] of the remote controller.
14
] keys to display the target key in the

TEST MODE

● TUNER Setup adjustment mode specifi cation
1. Use [FM] / [AM] key to select TUNER band.
2. Press and hold [ ] key for 2 seconds to enter TUNER
adjustment mode. At the same time, set FM receive fre-
quency to 98.3MHz.
3. Use [FM] / [AM] key to change between the adjustment
items.
FM Key
Seek Stop Level adjustment
(manual)
(Note) The fi rst item shall be Soft Mute adjustment.
But, in the case of AM band, the fi rst item shall be
Seek Stop Level adjustment (auto) because there
is no Soft Mute adjustment for AM band.
4. Proceed with the following steps for every adjustment
item:
Soft Mute Adjustment
∗ This item exists only in TUNER FM. Make adjustment
under the condition when VOLUME=30 and LOUD is
OFF.
(Display) SMD–x___
a. Use [
tinuously held) to set the value between 0 (18dBμ) and
F (36dBμ).
b. After the completion of the adjustment, press and hold
[ ] key for 2 seconds to start writing the adjustment
values in E2PROM. At the successful completion of
the writing, "EP_WRITE" is displayed
Seek Stop Level Adjustment (Auto)
(Display) ATN_4.32V
(Display) ATL_3.45V
a. In the band in which Local Seek ON/OFF is selectable,
Press [AUTO] / [TI] key briefl y to change between Lo-
cal Seek ON and OFF.
Soft Mute adjustment
AM Key AM Key
AM Key
Seek Stop Level adjustment
(auto)
FM Key
: Adjustment values, 0~F, are
shown in "x".
] / [ ] key (which can be pressed and con-
: When at Normal (Local OFF)
: When at Local (Local ON)
Current receive level
FM Key