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KRO-7701RY/787/807/887R/X957/PS987R
TEST MODE
99 MODEL
(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 K2I
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 light-
ing of the P/S dot.
(7) TAPE test mode specification
0 The blank skip function is initially turned off.
(8) Audio adjustments
o The volume should be set to -10 dB (displayed as
"30").
o 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.
o 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.
o Other adjustments are identical to normal operations.
(9) 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/C/MD mechanism is not
activated at this time.)
(10) Procedure for security code registration after the
E2PROM replacement during servicing (KRC-787 only)
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
the menu mode.
4. Press the Track UP/DOWN key to select "SECURITY"
5. Press and hold the FM/AM key for 2 seconds.
6. Enter the security code by pressing the preset 1, 2, 3
and 4 keys:
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 "(2) How to exit from the
test mode").
(11) Simplified security code clear procedure (KRC-X957,
KRC-807)
1. 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.
(12) -1 MASK key write procedure in production line (when
the E2PROM is in the initial status) (MASK KEY type)
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.
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