User manual SHARP MD-SR50H

[. . . ] MD-SR50H/50W/60E/60W SERVICE MANUAL No. S2006MDSR50H/ Illustration: MD-SR50H/SR50W MD-SR50H(BL) MD-SR50H(S) MD-SR50H(YR) MD-SR50W(BL) MD-SR50W(S) MD-SR60E(GL) MD-SR60W(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. Illustration: MD-SR60E/SR60W CONTENTS Page SAFETY PRECAUTION FOR SERVICE MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] * Pre-mastered disc Continuous playback (SUBQ address indication) [SQ ] | Continuous playback (C1 error indication) [CE ] | Continuous playback (SUBQ address indication) [SQ ] * Recordabl disk Continuous playback (ADIP address indication) [AP ] | Continuous playback (C1 error indication) [CE ] | Continuous playback (ADIP error indication) [AE ] | Continuous playback (ADIP address indication) [AP ] 4. TEST-REC Mode · When the STOP button is pressed while the TEST-REC menu appears, or in the TEST-REC mode or continuous record mode, the mode changes to the TEST mode stop state. · When the PLAY button is pressed while the TEST-REC menu appears, the continuous record is initiated from the current pickup position. · Whenever the DISP button is pressed in the TEST-REC menu, the target address changes as follows. 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 SKIP UP/ DOWN button changes as follows. 0032 -- 0032 -- 0032 -- 0320 -- · When the SKIP UP button s pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASS button is set to +1h. (0 to F) · When the SKIP DOWN button is pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASS button is set to -1h. (0 to F) * When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms. ­ 11 ­ MD-SR50H/50W/60E/60W 5. NORMAL Mode · When the STOP button is pressed while the NORMAL menu appears, the mode changes to the TEST mode stop state. · Indication during operation Indication of memory capacity on main unit LCD [ ] + Level meter : Internal mode : Address (Cluster section) : Address (Sector section) · Selection of sound volume, BASS, etc. is possible (without indication) · Recording is also possible. · If the STOP button is pressed during operation in the NORMAL mode, the NORMAL mode is canceled, and the power is turned off. 6. Error data display Mode · Reversing when SKIP DOWN 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. [ C L E A R _ ] · : Error Code Explanation of error history code 12h : RF side FG, TG, and TCRS adjustment termination failure 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 24h : Disc linear speed measurement failure 32h : P-TOC read failure 42h : U-TOC read failure 44h : U-TOC write data write disabled/read check error 52h : SD write data write disabled 71h : Pickup position initialization time-over 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 82h : Power overvoltage detection 91h : Ambient temperature is higher that the allowable temperature. 7. INNER Mode · when the STOP button is pressed on the INNER menu (SQ______ ), the state is changed to the TEST mode STOP state. · : Address ­ 12 ­ MD-SR50H/50W/60E/60W EEPROM (IC402) writing procedure 1. Procedure to replace EEPROM and write initial value of microcomputer in EEPROM (1) (2) (3) (4) Replace EEPROM. Press the Display button, ENTER button and Play button to start the test mode. X] EEPROM version (b ~ Z) Microcomputer ROM version (5) The whole LCD lights. [ TEST ] (7) Press the "BASS" button, and press twice the "SKIP DOWN" button. [. . . ] Square type (without lead wire) VC · · TQ . . . . . . . . . . . . . . . Square type (without lead wire) VC · · CY . . . . . . . . . . . . . . . Square type (without lead wire) VC · · CZ . . . . . . . . . . . . . . . Square type (without lead wire) VC · · · · · · · · · J . . [. . . ]