XL-560E (serv.man2) - Sharp Audio Service Manual (repair manual). Page 12

– 12 –

The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or
measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product
inspection.
The test mode specification prescribes the microcomputer with RDS (RH-IX0014SJZZ  Serial No. 904xxxxx) and the microcomputer
with RDS (RH-IX0021SJZZ  Serial No. 905xxxxx~ ).

To turn on the specific test mode, press the POWER button, holding down the following two buttons in the ordinary stand-by
mode (power off state). In this case only the main unit button is valid. Even when the POWER of remote control button is set
to on, the test mode is not turned on.

[Ordinary test mode]
1. CD  Test Mode (TEST 1)………………………… BASS/TREBLE + PLAY
2. Tuner Test Mode (TEST 2)……………………… FF/FWD + MEMORY/SET
3. Electronic volume Test Mode (TEST 3)………… STOP + BASS/TREBLE
4. Timer Test Mode (TEST 4)……………………… FF/FWD + BAND
5. LCD Test Mode (TEST 5)………………………… MEMORY/SET + REW/REV

FF/FWD + REC PAUSE

[Self-diagnosis Test Mode]

1.  Button input diagnosis test mode (TEST6).………

* Only for this mode four turning-on buttons are ……
   provided. The differ insignificantly in processing
   after turning-on.
   For the microcomputer without RDS, there are two

turning-on buttons, since the two buttons (using the
RDS buttons) are not provided.

FUNCTION + RDS PTY-TI