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Kenwood KMD-X91 Service Manual page 10

Md receiver
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KMD-X91/PS970R
ADJUSTMENT
TEST MODE
(1) How to enter the test mode
Reset the set while holding the FM and preset 6 keys
depressed.
All indications light up at the moment the test mode
starts.
(2) How to exit from the test mode
Reset the set while holding the preset 6 key.
(Note) The test mode is not canceled by turning ACC
OFF, turning power OFF or causing momentary power
down.
(3) FM S meter voltage adjustment
1. Enter the test mode.
2. While holding the preset 1 key depressed, press and
hold the preset 6 key.
3. "ADJ OK" is displayed when the result is OK or "ADJ
NG" is displayed when it is No Good.
(4) AM SD voltage write
1. Enter the test mode.
2. While holding the preset 1 key depressed, press and
hold the preset 6 key to write the SD voltage data.
(5) Forced Auto/Manual switching of K2l
Press and hold the TI key in the TUNER mode to switch
between AUTO and MANUAL.
The initial status is MANUAL, which is indicated by the
lighting of the DUAL dots.
(6) Forced Narrow/Wide switching of K2I
Press the preset 6 key in the TUNER
mode to switch
between Forced Narrow and Wide.
The initial status is Wide, which is indicated by the
lighting of the P/S dot.
(7) Audio adjustments
- The volume should be set to -10 dB (displayed as "30").
- The bass/treble and balance/fader controls are set to
full boost/full cut and full front/full rear respectively by
single press of the UP/DOWN
key.
- The high-pass filter is set to Through/100 Hz/200 Hz by
each press of the UP key, or to 200 Hz/100 Hz/Through
by each press of the DOWN
key.
- Other adjustments are identical to normal operations.
(8) Back-up current measurement
When the set is reset while ACC is off (i.e. when the
back-up power is on) or when ACC is turned off in the
middle
of test mode,
the MUTE
pin turns ON in 2
seconds instead of 15 seconds.
(The panel/CD/MD mechanism
is not activated at this
time.)
(9) Procedure for security code registration aftér the
E2PROM replacement during servicing (M type only,
except for the RDS models)
1. Enter the test mode (see "(1) How to enter the test
mode").
2. Press the SRC
key to select TUNER.
3. Press and hold the AUDIO key for 1 second to enter
he menu mode.
4. Press
the
T
"SECURITY".
5. Press and hold the FM/AM key for 2 seconds.
Enter the security code by pressing the preset 1, 2, 3
and 4 keys.
ack
UP/DOWN
key
to
select
10
Example: To enter "3510"
- Press preset key "1" 4 times.
- Press preset key "2" 6 times.
- Press preset key "3" 2 times.
- Press preset key "4" 1 time.
7. Press and hold the DISP key for 3 seconds so that
"APPROVED"
is displayed.
8. Exit from the test mode (see
the test mode").
(10) Simplified security code clear procedure
(K type only)
. During the code request mode, while holding the
DISP key depressed, press and hold the Volume UP
key for 3 seconds (so that "——"
disappears).
2. Enter "KCAR" from the remote control unit. (Same
operation as with the '98 models)
- Press numeric key "5" 2 times and press the Track
UP key (to enter "K"),
- Press numeric key "2" 3 times and press the Track
UP key (to enter "C").
- Press numeric key "2" 1 time and press the Track
UP key (to enter "A").
- Press numeric key "7" 2 times and press the Track
UP key (to enter "R").
3. The security is canceled
and the set enters
the
TUNER mode.
(11) MASK key write procedure in production line (when
the E2PROM is in the initial status)
1. While holding the FM and preset 6 keys depressed,
press RESET to enter the test mode.
2. Press and hold the AUDIO key for 1 second to enter
the menu mode.
3. Press the Track UP/DOWN key to select "Mask key".
4. Press
the
FM
or AM
key
shortly
so
that
"TRANSMIT1"
is displayed.
5. Point the MASK key to the light sensor and press and
hold the key for more than 0.5 second.
6. When "TRANSMIT2" is displayed, press and hold the
MASK key again for more than 0.5 second. Note that
the first and second counter codes are not compared
at this time.
7. The write operation is complete when "APPROVED"
is displayed.
At this time, the demonstration mode is set and the
test mode is canceled.
(Note) Similarly to the '98 models, leaving the set for
more
than 30 minutes
without writing the code
causes an error and turns power off.
(12) Procedure for canceling the MASK key request
(when
the set is reset or the back-up
power
is
turned off while the MASK key is enabled)
1. When the power is supplied and the set is switched
on, "TRANSMIT1"
is displayed and the MASK
key
request mode starts.
2. Point the MASK key toward the light sensor and press
and hold for more than 3 seconds
(until the level indicator indicates the full condition).
3. When "TRANSMIT2" is displayed, press and hold the
MASK key again for more than 3 seconds.
"(2) How to exit from
1

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