Sharp CD-E500 Service Manual - Page 12
Step 4 Mode, Step 5 Mode, Tuner Test Mode TEST 2, Outline of tuner radio test mode, Details of tuner
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CD-E500 CD-E55/E44 4. Step 4 Mode The CLV servo ON command (8600) is transmitted to wait for the following buttons to be pressed. (The disc is rotated for CLV lock.) The time display always indicates "0:00". Press the following buttons in this state to obtain the operations specified below. "POWER ON/STAND BY" . Test mode and power turned off to shift to the ordinary standby mode. "FF/FWD The pickup slides toward the outer periphery while this button is pressed. "REW/REV The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is invalid. "MEMORY/SET" ...... Return to step 5 *If the focus is not received, the process returns to step 1. 5. Step 5 Mode When the CD initialization operation flow is completed, the mute is turned off, and playback is started. Even if playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback passage time as in case of ordinary CD playback. 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 "TUNER(BAND)" and "VOLUME UP" buttons in POWER OFF state and turn on the power by the use of "POWER ON/STAND BY" 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 when the test mode is obtained. (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. Press the following buttons in this state to obtain the operations specified below. "POWER ON/STAND BY" .. Test mode and power turned off to shift to the ordinary standby mode. "FF/FWD The pickup slides toward the outer periphery while this button is pressed. "REW/REV The pickup slides toward the inner periphery while this button is pressed. If PICKUP IN is on, input is invalid. "PLAY Invalid "STOP Return to step 1 *If the focus is not received, the process returns to step 1. Other cautions • TOC IL is not available for this test mode. • The TUNER TEST02 mode is obtained with >> + MEMORY/ SET + POWER ON/STAND-BY. ->Turn off AC in the TEST02 mode to restore the initial state. Turn off POWER to protect the memory of TEST02 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/SET + CD PLAY. - 12 -