Sharp XL-3000 Service Manual download pdf (Page 16)

XL-3000/3000C

– 16 –

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. When

adjusting the tuner section in the production line, adjusting personnel are not required to set frequency.

2. Details of tuner test mode

Press the "REW/PRESET DOWN" and "CD PLAY" buttons in POWER OFF state and turn on the power by the use of

"POWER" button to preset and store frequency for adjustment and measurement of destination specified by the AREA

terminal in the preset memory CH. However, Ordinary 1 and Ordinary 2 are stored in the destinations (selected by SPAN

switching operation) when the test mode is obtained.

("FF " + "MEMORY/SET" KEY SPAN CHANGE)

(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. FUNCTION switching is invalid.

It is necessary to discard the content of preset memory when the tuner test mode is ended; be sure to write "0000" or "1111"

bits in the memory to be checked for judging memory error at initial setting and to initialize memory.

When the tuner test mode is obtained, the following display lights for one second.

• The TUNER TEST2 mode is obtained with >> + MEMORY + POWER. ->Turn off AC in the TEST2 mode to restore the initial

state.

Turn off POWER to protect the memory of TEST2 mode.

Turn off POWER again to obtain the ordinary operation 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, pressing MEMORY + CD PLAY.

3. Preset frequencies for various destinations (random preset memory)

• The slant line sections of the table store no memory.

BAND

16-25

26 FM106.0 MHz

27 FM 90.0 MHz

28 FM FM 98.0 MHz

29 MONO FM108.0 MHz

30 FM 87.5 MHz

BAND

1 FM 87.5 MHz

2 FM108.0 MHz

3 FM FM 98.0 MHz

4 STEREO FM 90.0 MHz

5 FM106.0 MHz

BAND

6 AM 530 kHz

7 AM1,720 kHz

8 AM AM 990 kHz

9 AM 600 kHz

10 AM1,400 kHz

AMCH

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 63 64

Comments to this Manuals

No comments

Sharp XL-3000 Service Manual Page 16

Comments to this Manuals