User manual SHARP MD-MT877

[. . . ] MD-MT877/MD-MT877C SERVICE MANUAL No. S3118MDMT877/ PORTABLE MINIDISC RECORDER MD-MT877(S) MODEL MD-MT877C(S) · In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used. CONTENTS Page SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 OPERATION MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] is possible (without indication) · Recording is also possible. · If the STOP button is pressed during operation in the NORMAL mode, the NORMAL mode is cancelled, and the power is turned off. 0032 -- 03C0 -- 0700 -- 08A0 --0950 -- 0032 -- When the PLAY button is pressed while a target address is displayed, continuous playback is performed after searching that address. · Whenever the MODE button is pressed in the TEST-REC mode target address is displayed, the digit which is changed by the FAST FORWARD/REVERSE button changes as follows. 0032 -- 0032 -- 0032 -- 0032 -- · When the FAST FORWARD button is pressed in the TEST-REC mode target address is displayed, the digit of address specified by the MODE button is set to +1h. (0 to F) · When the FAST REVERSE button is pressed in the TEST-REC mode target address is displayed, the digit of address specified by the MODE button is set to -1h. (0 to F) * When the FAST FORWARD/REVERSE button is held down, the setting changes continuously, one cycle being 100 ms. · When the VOLUME+/­ button is pressed in the TEST-REC mode or continuous record mode, the laser record power changes. (Servo gain changes also according to record power. ) * After the laser record power is indicated for one second, the ad] dress indication is restored. [ R P W _ · : Address · : Laser power cord · Operation is disabled if the premastered disc or disc is in miseraseprotected state. 8. Error data display Mode · Reversing when FAST REVERSE button is pressed · When the STOP button is pressed while the error data indication menu appears or during error data indication, the mode changes to the TEST mode stop state. · Error data 0 is the latest error. · Error which occurred in the TEST mode is also stored in the memory. · When the DISP button is pressed while the error data indication menu appears, the error data is initialized. [CLEAR_] · : Error Code Explanation of error history code 13h : Adjustment servo retraction excessive retrial 16h : C. IN detection time-over 17h : A, B, E, F, and TCRSO offset measurement value out of tolerable range 21h : Focus retraction completion allowable time-over 23h : Track search completion allowable time-over 32h : P-TOC read failure 42h : U-TOC read failure 44h : U-TOC write data write disabled/read check error 45h : U-TOC write test failure 52h : SD write data write disabled 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 91h : Ambient temperature is higher that the allowable temperature Error messages Can't READ The details ' ' 'f': Focus 'a': Servo adjustment 's': Track such 'r': TOC information reading 'u': UTOC information reading 'w': At the time of data writing 'p': Spindle start Er-MD The details ' ' '41': UTOC light test error '80': EEPROM information reading error ­ 14 ­ MD-MT877/MD-MT877C EEPROM (IC402) writing procedure 1. Procedure to replace EEPROM and write initial value of microcomputer in EEPROM (1) Replace EEPROM. (2) Refer to the latest EEPROM data list. (Refer to page 12 "Entering the TEST mode". ) (4) Version display (At the time of settlement of the test mode by the button operation. ) [Ver. ] EEPROM version (c ~ z) Microcomputer ROM version (5) The whole LCD lights. [ TEST ] (7) Press the "BASS" button, and press 1 time the "FAST REVERSE" button. [ EEPROM ] (8) Perform the operation to display "EEPROM SETTING MODE CHART", compare the EEPROM DATA LIST with the display, and set according to the EEPROM DATA LIST with the VOLUME+ or VOLUME­ button. (Refer to the Temperature reference setting method. ) (10) Set according to the EEPROM DATA LIST. (13) After data is written in EEPROM, turn off power . 2. Temperature reference setting method [1] Measurement, calculation and setting procedure (1) Set the TEST mode. [. . . ] Cylindrical type (without lead wire) VC · · TV . . . . . . . . . . . . . . . . Square type (without lead wire) VC · · TQ . . . . . . . . . . . . . . . Square type (without lead wire) VC · · CY . . . . . . . . . . . . . . . Square type (without lead wire) VC · · CZ . . . . . . . . . . . . . . . [. . . ]