Sharp XL-560

– 13 –
XL-560,570/C
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH without
frequency setting by adjusting personnel when the tuner section is adjusted in the production line.
2. Details of tuner test mode
When the power is turned on by using the "POWER" button while the "FF/FWD" and "MEMORY/SET" buttons are held down
in POWER OFF state, the frequency for adjustment and measurement of destination specified by the AREA terminal is preset
and stored in the preset memory CH. However, Ordinary 1 and Ordinary 2 are set to the designation (destination selected
by SPAN switching operation) set when the test mode is set. (As for frequencies to be preset and stored for each destination,
refer to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations of TUNER function. However, FUNCTION switching
is invalid.
Since it is necessary to discard the content of preset memory when the tuner test mode is ended, "0000" or "1111" bits are
written in the memory to be checked in case of memory check (in case of initial setting) so that memory abnormality is detected
in case of initial setting so as to ensure memory initialization.
When the tuner test mode is turned on, the following indication lights for one second.
• The TUNER TEST2 mode is set as a result of >> + MEMORY + POWER. -> IF AC is set to OFF in the TEST2 mode, the initial
state is restored.
When POWER is set to OFF, the memory of TEST2 mode is protected.
When the power is turned on again, the ordinary operation is enabled while the data is stored in the
memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is executed in the initial state.
• To clear the whole memory, insert the AC cord, holding down MEMORY + BASS/TREBLE.
When the following operation buttons are pressed in this sate, the operation is executed as follows.
"POWER" .................The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD"................. The pickup slides toward the outer periphery while this button is held down.
"REW/REV"..............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" .....................Invalid
"STOP".....................Return to step 1
"FUNCTION"............Shift to step 6
"BAND" ....................Shift to step 7
*If the focus is disturbed, the process returns to step 1.
Other cautions
• TOC IL is not executed in the test mode.
• As for button operations other than those shown above, only the sound volume operation (with JOG) is accepted.
3. Preset frequencies for various destinations (random preset memory)
• The hatched sections of the table are not stored in memory.
BAND
16
17
18
19
20
21
22
23
24
25
26 FM106.0 MHz
27 FM 90.0 MHz
28 FM MONO FM 98.0 MHz
29 FM108.0 MHz
30 FM 87.5 MHz
USA,BrazilCHBAND
1 FM 87.5 MHz
2 FM108.0 MHz
3 FM STEREO FM 98.0 MHz
4 FM 90.0 MHz
5 FM106.0 MHz
6 AM 530 kHz
7 AM1720 kHz
8 AM AM 990 kHz
9 AM 600 kHz
10 AM1400 kHz
11
12
13 LW
14
15
USA,BrazilCH