Sharp MD-R3 Servisní příručka Strana 19
- Strana / 92
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
– 19 –
MD-R3
• Test Mode
1. EJECT mode • TEMP setting (of EEPROM setting)
• CONTROL setting (of EEPROM setting)
• Setting of laser power (record/playback power)
2. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)
• The adjustment value is output with the aid of system controller interf
3. AUTO adjustment mode • Automatic adjustment is performed. (After adjustment the grating adjustment mode is set.)
• The adjustment value is output with the aid of system controller interface.
• Continuous playback is performed. (Error rate indication, jump test)
4. RESULT sub-mode • The measurement value, set value and calculated value are indicated.
• The set value is changed manually (in servo OFF state).
5. RESULT mode (final adjustment) • The set value (after calculation) is indicated.
• The set value is changed manually (in servo OFF state).
6. MANUAL pre-adjustment mode • RF side manual adjustment is performed.
• Focus and tracking signal offset setting is performed.
7. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.
8. EEPROM setting mode • Various coefficients of digital servo are changed manually.
• Temperature detection terminal voltage is measured, and the reference value is determined.
9. TEST-PLAY mode • Continuous playback from the specified address is performed.
• C1 error rate measurement, ADIP error rate measurement.
10. TEST-REC mode • Continuous recording from the specified address is performed.
• Change of record laser output (servo gain is also changed according to laser output)
11. INNER mode • The position where the INNER switch is turned on is measured.
1. EJECT mode
Step 1 Testmode EJECT state [ _ _ E J E C T _ _ _ ]
Step 2 Press oncethe DISPLAY/ Max. power output state [ x p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 3 Press once the DISPLAY/ Record power output state [ r p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 4 Press once the DISPLAY Playback power output state [ p p w _ _ _ _ _ _ _ ]
CHARACTER button.
Step 5
Press the DELETE/CLEAR button.
TEMP setting of EEPROM setting
(Refer to TEMP setting of EEPROM)
Step 6
Press the NAME/TOC EDIT button.
CONTROL setting of EEPROM setting
(Refer to CONTROL setting of EEPROM)
Step No.
Setting Method
Remarks Display
Lead-in switch position measurement mode
Note: Adjust the lead-in switch position to FF85 to FFD2.
1. Loosen the screw (A) x 3 pcs. which fix the mechanism switch PWB.
2. Retighten the screw, pressing the mechanism switch PWB in the arrow direction, and then measure the lead-in switch position again.
After position adjustment fix with the three screws (A). (See Fig. 19.)
Note: After tightening the two screws on the PWB apply Screw Lock.
Forced rotation of loading motor
While the display indication is test mode STOP state or EJECT state,
the loading motor can be forcibly rotated by press the JOG UP/DOWN
button.
Loosen the
three screws (A).
Lead-In Switch
Mechanism Switch PWB
Figure 19
- SERVICE MANUAL 1
- SPECIFICATIONS 2
- IMPORTANT SERVICE NOTES 2
- NAME OF PARTS 3
- OPERATION MANUAL 4
- TROUBLESHOOTING 5
- (Continued) 6
- Guía rápida 7
- DISASSEMBLY 8
- Turn clockwise the 9
- CD mechanism up to 9
- the uppermost position 9
- Display PWB 10
- CD MECHANISM SECTION 11
- MD MECHANISM SECTION 12
- Spindle Motor 13
- Turntable 13
- Ø1.7x2.5mm 13
- Extension cable 14
- Setting the CD TEST mode 14
- 2. Adjusting the servo unit 15
- CD SERVO PWB 16
- TEST MODE 17
- MD SECTION 18
- Loosen the 19
- Lead-In Switch 19
- Mechanism Switch PWB 19
- [ H B o : _ _ ] 21
- [ H E o : _ _ ] 21
- [ H F o : _ _ ] 21
- 7. MANUAL adjustment mode 22
- High reflection disc 22
- Low reflection disc 22
- 8. EEPROM setting mode 23
- [ H A L S O F_ _ ] 25
- [ L A L S O F S_ ] 25
- [ G A L S O F S_ ] 25
- 9. TEST-PLAY mode 26
- 11. INNER mode 27
- 10. TEST-REC mode 27
- 1pin of IC 1201 (TP1274) 28
- 88 pin of IC 1201 (TP1275) 28
- EXPLANATION OF ERROR DISPLAY 29
- -PROM Setting Mode Chart 32
- Figure 32 32
- NOTES ON SCHEMATIC DIAGRAM 33
- POWER+7V 35
- IX0240AW 36
- SYSTEM MICROCOMPUTER 36
- VOUTR,VOUTL 37
- REGULATOR 38
- MAIN CAM SWITCH 39
- TO MAIN PWB 39
- HOE-LD-PD 40
- CD MOTOR PWB-G 40
- PICKUP UNIT 40
- M65821FP 41
- SERVO/SIGNAL CONTROL 41
- SIGNAL PROCESSOR 41
- CD CHANGER PWB-D 42
- 8 9 10 11 12 43
- MIC PWB-B3 44
- SWITCH PWB-B5 44
- SWITCH PWB-B4 44
- MD SWITCH PWB-G 48
- MD MAIN PWB-E 49
- MAIN PWB-A 51
- COLOR TABLE 52
- TRAY SWITCH PWB-H 53
- PICK UP UNIT 54
- CD SERVO PWB-C 54
- MD PICKUP UNIT 55
- MD MECHANISM SWITCH PWB-F 55
- MD MAIN PWB - E (TOP VIEW) 56
- VOLTAGE (MD MAIN PWB) 58
- WAVEFORMS OF CD CIRCUIT 59
- WAVEFORMS OF MD CIRCUIT 60
- D/A CONVERSION PLAY 61
- CD fails to operate 62
- (FE OUT) 63
- (FS OUT) 63
- 1~2 sec 64
- Rotation cycle of motor 65
- Voltage varies depending 65
- When MD fails operate 66
- • Normal playback 68
- • Audio playback circuit 68
- • Focus servo failure 69
- • Disc motor fails to run 70
- • Tracking servo failure 70
- • Slide servo failure 70
- FUNCTION TABLE OF IC 71
- MICROCOMPUTER 72
- REF — + 3.15V 77
- TRG Input Connect +B 77
- LR376481 78
- PARTS GUIDE 79
- VIBRATORS 80
- DESCRIPTIONPARTS CODE 81
- NO. PART CODE 81
- DESCRIPTION 81
- RESISTORS 82
- OTHER CIRCUITRY PARTS 84
- MECHANICAL PARTS 84
- CD MECHANISM PARTS 85
- CHANGER MECHANISM 85
- CABINET PARTS 85
- ACCESSORIES 86
- OTHER SERVICE PARTS 86
- Silicon 90
- PACKING OF THE SET 91
- ALL RIGHTS RESERVED 92
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