Test Mode - Kenwood DPX502 Service Manual

● How to enter the test mode
Press and hold the [1] and [3] 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.
● Speciication of the test mode for tuner sourse
The frequency of 98.3MHz is received when the [4] key is
pressed in the TUNER FM mode
● Specifi cation of FST soft mute adjustment mode
1. Receive the TUNER FM mode in the VOLUME 30 and
LOUD OFF condition.
2. Press and hold the [ ] key for 2 seconds to enter the
FST soft mute adjustment mode.
3. In the adjustment mode, the following display is shown.
Adjust the mute between 0 (18dBu) and F (36dBu) with
the [FM] / [AM] keys.
(Display) SMD–x_ _ _ (Adjustment value, 0~F is displayed
in "x").
4. When the adjustment is "OK", press and hold the [ ] key
for 2 seconds again to write the adjustment value in
the E2PROM, and after the successful writing-in the
"EP_WRITE" is displayed.
5. Press the [ ] key briefl y to exit from the FST soft mute
adjustment mode.
(The test mode continues.)
● Special display in tuner mode
Error is found in front-end, etc. if indications below are
displayed while in tuner mode.
• "TNE2P_NG" : E2PROM (in front-end: A500 of X34-)
values are still default (not determined)

TEST MODE

• "TNCON_NG" : Cannot communicate with the front-end.
● RDS/RBDS automatic measurement
Add the process to replace the visual inspection of PS
display previously done in the production line.
When it is confi rmed that the PS data has been received
and that the content of the PS is "RDS_TEST", force to
OFF the P-CON terminal. ( The symbol, "_" indicates the
blank. )
→ Make this as the process dedicated for the test mode.
P-CON is recovered by Power OFF→ON.
● K3I forced switching
Every time when [6] key is pressed in tuner FM mode,
switched in the following order: AUTO→Forced WIDE
→Forced MIDDLE→Forced NARROW→AUTO. Default
status is AUTO, and displayed as shown below.
• AUTO: FM1_98.1A
• Forced MIDDLE: FM1_98.1M • Forced NARROW: FM1_98.1N
● CD source test mode specifi cation
• Display mode default setting shall be P-TIME.
• Jumps to the following tracks by pressing the [
No.9→No.15→No.10→No.11→No.12→No.13→No.22→
No.14→No.9 (recursive)
Note that when playing a CD-DA disc and MP3 / WMA
/ AAC / WAV discs with 8 fi les or less, the disc is played
from the 1 track in the normal order.
• Pressing the [
being played.
• When playing an MP3 / WMA / AAC/WAV disc, display
the fi le format before starting to play each fi le.
( "MP3", "WMA", "AAC", "WAV" )
• While in CD source, press the [1] key briefl y to jump to
No.28.
• While in CD source, press the [2] key briefl y to jump to
No.14.
• While in CD source, press the [3] key briefl y to display CD
mechanism model name and the version.
Press the [3] key briefly again to return to the normal
display. (Time code display)
• While in CD source, press the [6] key briefl y to jump to
No.15. At this time, the volume value is set to 25 (2V
PRE).
DPX502/502U/502UY
DPX-MP5100U
• Forced WIDE: FM1_98.1W
] key goes back by 1 track from the track
6 C 2 0 : 0 1 2 3
Model name Version
] key.
9