R-SG7/SG7G
4
CIRCUIT DESCRIPTION
5. TEST MODE
5-1 AMP test mode using main unit's keys
• Entering the AMP test mode
Turn on the power while pressing the[BAND] key.
• Canceling the AMP test mode
By turning off the power, the systen is initialized and the
test mode is canceled.
5-1-1 Contents of AMP test mode
(1) Automatic on/standby ON
• The POWER ON state is entered when the power is
turned on whille pressing the [BAND]key. All functions are
then initialized and activated in the all-lighting mode.
• Sub-clock oscillation diagnosis function
The oscillation diagnosis (existence of oscillation and
measurement of period) of a sub-clock is performed
before the test mode is entered. If the diagnosis result is
OK,the system enters the test mode. If the diagnosis
result is NG,the oscillation of the sub-clock is diagnosed
again. If the result is OK, the system enters the test
mode. If the diagnosis result is continuously NG five
times, the system stops with ERR1 and ERR2 displayed.
(2) All- lighting mode
• All the fluorescent display indicators and LED lamps light
when the power is turned on while pressing the [BAND]
key. After that, all- lighting mode is canceled when any
main unit's key is pressed. The normal display is obtained
when the selector is set to TUNER then appears.
(3) Others
• The AMP test mode is not terminated even if the selector
is set to positions other than TUNER.
• In the AMP tesst mode,the muting during mode selection
is not controlled. However, the operation during the
power-on sequence is the same as the normal operation.
• The SP protection operation is also the same as the nor-
mal operation.
• In the AMP test mode using main unit's keys,the keys
below provide a special operation according to the posi-
tion where the selector is set. The main unit key's except
described below and the rotary encoder provide the nor-
mal operation.
(4) When selector is set toTUNER
1
Write data in the unused area of E2PROM, then read the
written data. If the read data is the same as the written
data, RAM OK is displayed in the fluorescent display indi-
cator. If the former is the different from the later, RAM NG
is displayed.
2
Set the TUNER ATT to OFF and display the S level in
hexadecimal when the [ENTER] key is pressed . (ATT
OFF
✽ ✽
is displayed in the fluorescent display indicator.)
3
Set the TUNER ATT to ON and the display S level in
hexadecimal when the [ENTER] key is pressed. (ATT ON
✽ ✽
is displayed in the fluorescent display indicator.)
* The special display using the [ENTER] key is continued
until the next operation is carried out. (
✽ ✽
: S LEVEL)
When keys other then ENTER are pressed in items
1
to
3
above, the TUNER ATT is set to OFF and the normal
display appears. The operation corresponding to the key
that has been pressed performed in this case.
(5) When selector is set to positions other than TUNER.
1
ENTER and PURE A keys.
The master volume level is selected cyclically, while press-
ing the [ENTER] key.
2
AUTO/MONO key.
Selects the mute operation and equalizer cyclically in the
order below for operation display every time this key is
pressed.
*In the operation for except the AUTO key, become pre-
condition equalizer.
*Pre -condition : The equalizer becomes the condition to be
pushed the AUTO key before (include N.B. circuit).
3
BAND and tuning UP/DOWN keys.
Keys
Operation
PURE A
Increase the P.CALL every time this key
is pressed.
N.B./TONE
Decrease the P.CALL every time this key
is pressed.
ENTER
Selects the display cyclically in the order
below every time this key is pressed.
Value of Master
Press the
Press the PURE A key,
volume.
ENTER key. then press the ENTER key.
MAX
86
16.00
MID
40
8.00
MIN
1
0.20
KEY
OPERATION
AUTO/MONO
KEYS
OPERATION
BAND
Every time this key is pressed, all
the displays go off and the normal
display is selected cyclically.
TUNING
UP/DOWN
R-SG7(K)
COVER1,1P(
99.10.30
0:17
PM
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