Sharp CP-G10000S Service Manual - Page 9

[4] CD SECTION • Adjustment Since this CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWBs and pickups can be combined freely. Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions. Items adjusted automatically 1) Offset adjustment (The offset voltage between the head amplifier output and the VREF reference voltage is compensated inside the IC.) * Focus offset adjustment * Tracking offset adjustment 2) Tracking balance adjustment 3) Gain adjustment (The gain is compensated inside the IC so that the loop gain at the gain crossover frequency will be 0 dB.) * Focus gain adjustment * Tracking gain adjustment [5] CD section CD-G10000/CP-G10000S CD Error code description Error 01 10* 11* 20* 21* 31 Explanation When Pickup set inner position, inner switch cannot detect 'ON' level for 10 secs. CAM error. Can't detect CAM switch when CAM is moving. When it detect cam operation error during initialize process. TRAY error. Can't detect TRAY switch when TRAY is moving. When it detect TRAY operation error during initialize process. When it change to CD function, DSP cannot read initial data. * 'CHECKING' If Error is detected, 'CHECKING' will be displayed instead of 'ERCD**'. 'ER-CD**' display will only be displayed when error had been detected for the 5th times. [6] Standard Specification of Stereo System Error Message Display Contents Error Contents CD Pickup Mechanism Error. CD Changer Mechanism Error. CD DSP Communication Error. Focus Not Match/IL Time Over. TUNER PLL Unlock. Display 'ER-CD01' 'ER-CD**' (*) 'ER-CD31' 'NO DISC' FM 87.5 MHz Notes PU-IN SW Detection NG. 10: CAM SW Detection NG during normal operation 11: CAM SW Detection NG during initialize process 20:TRAY SW Detection NG during normal operation 21:TRAY SW Detection NG during initialize process DSP COMMUNICATION ERROR. PLL Unlock. (*) CHECKING: If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**'. 'ER-CD**' display will only be display when error had been detected for the 5 th times. Speaker abnormal detection and +B PROTECTION display In case speaker abnormal detection or +B PROTECTION had occurred, it can be check by pressing 'POWER', ' ' and 'X-BASS' button. MicroComputer version number will displayed as "XM******". Press 'GAME/VIDEO' button during version number display and then press 'POWER', 'MEMORY/SET' and 'GAME/VIDEO' button. Display will show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION. ** is in hex valve. BEFORE TRANSPORTING THE UNIT The following process need to be taken after set tapering/parts replacement. 1. Press the ON/STAND-BY button to enter stand-by mode. 2. While pressing down the button and the X-BASS/DEMO button, press the ON/STAND-BY button. The Micro Computer version number will be displayed as "XM******". 3. Press OPEN/CLOSE button until "WAIT"→ "FINISHED" appears. 4. Unplug the AC cord and the unit is ready for transporting. +B PROTECTION is condition when irregular process occur on power supply line. 2 - 4