Sony MZ-R900 - Manuals

Sony MZ-R900 – Manual in PDF format online.

Manuals:

Manual

Manual Sony MZ-R900

Summary

Page 3 - SECTION 1; Notes on chip component replacement; CAUTION

3 MZ-R900 NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to elect...

Page 4 - Looking at controls

4 MZ-R900 SECTION 2 GENERAL This section is extracted frominstruction manual. 8 Looking at controls See pages in ( ) for more details. The recorder A END SEARCH button (17) (47) B Battery compartment (13) C Jog lever (L) (MENU/ENTER) (11) (20) (25) (34) (43) (53) D VOL +/– button (19) (47) E REC MOD...

Page 5 - DISASSEMBLY FLOW; SECTION 3

5 MZ-R900 • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-2. PANEL ASSY, BOTTOM 3-2. PANEL ASSY, BOTTOM 3-3. PANEL ASSY, UPPER SECTION SET 3-4. “LCD MODULE”, “PANEL ASSY, UPPER...

Page 6 - PANEL ASSY, UPPER SECTION

6 MZ-R900 3-3. PANEL ASSY, UPPER SECTION 3-4. “LCD MODULE”, “PANEL ASSY, UPPER” 3 two screws(1.4) 4 panel assy, upper section 2 Push button (open). 3 two screws(1.4) 1 flexible board(CN801) 1 four screws (1.7) 3 button (A), controlNote: On installation, adjust the hole of“button (A), control”and bos...

Page 7 - MAIN BOARD ASSY

7 MZ-R900 3-5. MAIN BOARD ASSY 3-6. “CASE ASSY, BATTERY”, “MAIN BOARD” 3 four screws(M1.4 toothed lock) 4 screw(1.4) 2 flexible board(CN502) 1 Remove two soldersof flexible board. 6 flexible board(CN501) 5 7 main board assy 2 case assy, battery 3 main board 1 Remove the solderof terminal (minus). 1 ...

Page 12 - SECTION 4; Operation in Setting the Test Mode; Releasing the Test Mode

12 MZ-R900 888 003 V1.000 Microcomputerversiondisplay Destination code 002 : Except US, Canadian models 003 : US, Canadian models All off All lit BASS12 C830 + L801 C809 + C813 C801 11 12 241 5 10 48 3 1 6 7 2 29 9 4 19 18 95 96 22 8 27 34 15 21 38 17 23 40 16 28 26 20 25 42 24 113 51 30 31 45 36 35...

Page 13 - • Transition method in Manual Mode; M a n u a l

13 MZ-R900 Configuration of Test Mode Manual Mode Mode to adjust or check the operation of the set by function.Normally, the adjustment in this mode is not executed.However, the Manual mode is used to clear the memory, powersupply adjustment, and laser power check before performingautomatic adjustme...

Page 14 - Self-Diagnosis Result Display Mode; • Self-Diagnosis Result Display Mode Setting Method; Overall Adjustment Mode; L r e f P w

14 MZ-R900 Self-Diagnosis Result Display Mode This set uses the self-diagnostic function system in which if anerror occurred during the recording or playing, the mechanismc o n t r o l b l o c k a n d t h e p ow e r s u p p l y c o n t r o l b l o c k i n t h emicrocomputer detect it and record its ...

Page 15 - • Description of Indication History; Reset the error display code; • Setting method of Reset the Error Display Code

15 MZ-R900 • Description of Indication History History code number Description 1 The first error N The last error N1 One error before the last. N2 Two errors before the last. R_ Total recording time Reset the error display code After servicing, reset the error display code. • Setting method of Reset...

Page 16 - Key Check Mode; • Setting Method of Key Check Mode; Sound Skip Check Result Display Mode; • Setting method of sound skip check result display; Cause of error

16 MZ-R900 4. When all the keys on the set and on the remote commander are considered as OK, the following displays are shown for 4 sec-onds. Example1: When the keys on the set are considered as OK: Example2: When the keys on the remote commander are con- sidered as OK: 5. When all keys were checked...

Page 17 - SECTION 5; Outline; ResNV CC

17 MZ-R900 • Setting method of NV reset 1. Select the manual mode of the test mode, and set item number 021NV Reset (see page 13). 2. Press the X key. 3. Press the X key once more. 4. Press the x key to quit the manual mode, and activate the test mode (display check mode). • Change of Adjusted Value...

Page 18 - VchPWM; Power Supply Manual Adjustment; • Adjustment sequence

18 MZ-R900 • Adjustment method of Vc PWM Duty (L) (item number: 762) 1. Connect a digital voltmeter to the AP914 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.40 V. 2. Press the X key to write the adjusted value. (The item nu...

Page 19 - Temperature Correction; • Adjustment Method of temperature correction; ADJ; Laser Power Check; Laser

19 MZ-R900 7. Press the N key, and set the laser CD read adjustment mode (item number 012). 8. Check that the laser power meter reading is 0.97 ± 0.10 mW. 9. Check that the voltage both ends (TP (+) and TP (–)) of resistor R521 at this time is below 44 mV. 10. Press the N key, and set the laser MO w...

Page 20 - • Configuration of overall adjustment; • Overall Adjustment Mode (Title Display); OfstOK

20 MZ-R900 > key . key Overall adjustment mode (Title display) CD overall adjusting CD overall adjustment OK MO overall adjusting MO overall adjustment OK CD overall adjustment NG MO overall adjustment NG All item OK Protect switchON Protect switchOFF [JOG LEVER $L% ] (up) key or [DISPLAY] key on...

Page 21 - • Overall CD and MO adjustment items; NG; XXX; NG

21 MZ-R900 8. If OK through the overall MO adjustments, press the x key to return to the test mode and terminate the Overall Adjustmentmode. 6. Insert MO disc in the set, and press the > key to set the Overall MO Adjustment mode. Automatic adjustments aremade. • Overall CD and MO adjustment items...

Page 22 - Resume Clear; • Resume Clear Setting Method; Resume CC; ResClr; PatClr CC

22 MZ-R900 Resume Clear Perform the Resume clear when all adjustments completed. • Resume Clear Setting Method 1. Select the manual mode of the test mode, and set item number 043 (see page 13). 2. Press the X key. 3. Press the x key to return to the test mode (display check mode). Patch Data Rewriti...

Page 27 - BLOCK DIAGRAM – SERVO Section –

MZ-R900 27 27 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – SERVO Section – 33 29 28 41 42 1 44 21 31 26 25 43 24 23 4 8 9 10 11 12 14 5 6 13 7 18 19 JX JY JX IX IY IY IX JX JY A B C D MON IX A B C D OPTICAL PICK-UP BLOCK (LCX-4R) HR601 OVER WRITE HEAD S0S1 D D-C PD-NI PD-O C B A VREF A-C JY JX IX IY RF A...

Page 28 - BLOCK DIAGRAM – AUDIO Section –

MZ-R900 28 28 6-2. BLOCK DIAGRAM – AUDIO Section – VC B+ F801 F RMC KEY RVDD DTCK CDWM 2V CDWM DATA KEY-R RGND (LINE IN JACK) OPTICAL RECEIVER J302 i /LINE OUT J301 LINE IN (OPT) J303 MIC (PLUG IN POWER) • SIGNAL PATH : PLAYBACK : REC (ANALOG IN) : REC (DIGITAL IN) 2 11 13 5 4 16 10 9 12 13 3 1 14 1...

Page 29 - BLOCK DIAGRAM – KEY CONTROL/DISPLAY/POWER SUPPLY Section –; • Waveforms

MZ-R900 29 29 29 29 29 29 7 4 56 52 54 55 1 2 3 5 20 86 169 236 235 234 17 18 19 6 10 49 24 25 39 44 38 42 40 41 35 22 23 26 46 47 50 28 32 34 11 14 10 15 22 16 19 20 51 54 55 21 8 9 26 49 47 46 45 43 44 56 50 48 33 36 45 18 19 16 12 10 9 27 53 + – 15 164 165 8 163 48 11 237 238 16 171 10 216 1 208 ...

Page 31 - MAIN BOARD; MOTOR FLEXIBLE; PRINTED WIRING BOARDS; • Semiconductor

MZ-R900 30 30 30 30 30 30 R831 C808 C807 R806 C804 R807 C835 R619 R607 C834 C613 C619 R610 R606 C629 C630 R809 R808 C802 C812 C818 R817 C814 R814 R845 R840 R838 R812 R810 R802 R803 R801 C621 R613 R837 R839 C806 R828 C819 R829 C820 C833 R804 C805 R833 R835 C803 R805 C823 R830 C522 C560 C552 C551 C512...

Page 32 - SCHEMATIC DIAGRAM; See page 33 for Waveforms.

MZ-R900 31 31 31 31 31 31 6-5. SCHEMATIC DIAGRAM • See page 33 for Waveforms. • See page 43 for IC Block Diagrams

Page 33 - • IC Block Diagrams

MZ-R900 32 32 32 32 32 32 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 54 55 56 1 53 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 24 23 25 26 27 28 VB BATM CHGSW RS INP2 INM2 RF2 DCIN CHGMON SVREF GAIN CHG DREG GND SW RECON OE CLK RI FI EFM VIO VC V RECO1 LI1 PGN...

Page 35 - IC PIN FUNCTION DESCRIPTION; Pin Name

33 MZ-R900 6-6. IC PIN FUNCTION DESCRIPTION • IC501 SN761057DBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name I/O Description 1 TE O Tracking error signal output to the system controller (IC801) 2 REXT — Connect terminal to the external resistor for ADIP amp control 3 WPPLPF — Connect terminal...

Page 44 - MAIN

42 MZ-R900 SECTION 8 ELECTRICAL PARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MAIN NOTE: • Due to standardization, replacements in the parts list may be different from the parts speci-fied in the diagrams or the components usedon the set. • -XX and -X mean stan...

Page 49 - MEMO

Page 50 - REVISION HISTORY; Date

MZ-R900 REVISION HISTORY Clicking the version allows you to jump to the revised page.Also, clicking the version at the upper right on the revised page allows you to jump to the next revisedpage. Ver. Date Description of Revision 1.2 2001.03 Addition of Destination (US, Canadian Model) 1.1 2000.12 Ad...

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