Kenwood KR-A4060 Service Manual page 12

6. Main Unit Test Mode
Setting method
Turn the AC power ON while pushing the "TUNING
DOWN" key.
Cancellation method
Turn the AC power OFF.
Contents
@® Start of the main unit test mode
The operation gets in the test mode through a main
unit key, when the AC power is turned ON while
pushing the "TUNING DOWN* key.
Three operations are carried out in this case.
e Automatic power ON
All fluorescent character display tubes and LED light
up.
© Initialization of all states except POWER ON/OFF.
The "All indications lit up" states is cancelled by
pushing any key of the main unit.
The states changed during the test mode are initial-
ized when the main unit test mode is cancelled (AC
power OFF).
@ Automatic motor VR UP/DOWN (AMP)
The operation (16 sec. UP-16 sec. DOWN-STOP)
of the motor is carried out when the "TAPE 2" key is
operated. Therefore, "TAPE 2 (MONITOR)" can not
be changed-over during the main unit test mode.
KR-A4060/A5060
CIRCUIT DESCRIPTION
@® Mute signal output (AMP)
No control of selector MUTE (MUTE1) Is carried out.
@ Test mode operation of 0~9, +10 (TUNER)
a) When the +10 key is not operated, the channels 1~9
(keys 1~9), as well as the channel 10 (key 0), can be
called.
b) When the +10 key is operated once, the channels
11~19 (keys 1~9), as well as the channel 20 (key 0),
can be called.
c) When the +10 key is operated once again, the opera-
tion returns to the case "a) When the +10 key is not
operated".
© Processing of keys available only in the remote con-
troller
¢ Processing related to the AMP : None
e Processing related to the TUNER : None
© Cancellation of the main unit test mode
The test mode is cancelled, and the operation re-
turns to the initial state when the AC power is
turned OFF during the test mode.