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Pioneer MJ-L5 Service Manual

Minidisc recorder; surround processor
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3 7 63 1515 0
MINIDISC RECORDER
MJ-L5
SURROUND PROCESSOR
SP-L5
•
This products is a system component. It combined the following components.
TE
L 13942296513
MINIDISC RECORDER .................... MJ-L5
SURROUND PROCESSOR ............. SP-L5
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
MJ-L5
KUXK/CA
•
This products is a system component.
For the system composition, refer to the service manual RRV2080 for XC-L5.
•
This product does not operate normally by itself. Please connect it to the STEREO CD RECEIVER XC-L5,
for adjustment and operation inspection. Otherwise damage may result.
CONTENTS
1. SAFETY INFORMATION ...................................... 2
3. SCHEMATIC DIAGRAM ..................................... 14
4. PCB CONNECTION DIAGRAM .......................... 32
www
5. PCB PARTS LIST ............................................... 44
6. ADJUSTMENT .................................................... 49
.
PIONEER ELECTRONIC CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Allexandra Road, #04-01, Singapore 159936
c
PIONEER ELECTRONIC CORPORATION 1998
http://www.xiaoyu163.com
Model
SP-L5
O
O
AC120V
x
ao
y
i
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
http://www.xiaoyu163.com
8
MINIDISC
ASES
Ÿ
Ÿ
DELAY
DOLBY SURROUND
MODE
TIME
P R O
•
L O G I C
Q Q
3
6 7
1 3
Power Requirement
7. GENERAL INFORMATION ................................ 59
7.1 IC ................................................................. 59
7.2 DIAGNOSIS ................................................. 75
7.3 DISASSEMBLY ........................................... 77
7.4 BLOCK DIAGRAM ....................................... 82
u163
.
2 9
9 4
2 8
1
¡
-
•
•
+
0
6
4
¢
7
SFC
SFC
MODE
ON/OFF
1 5
0 5
8
2 9
9 4
m
co
T - ZZY DEC. 1998 Printed in Japan
9 9
ORDER NO.
RRV2087
2 8
9 9
Remarks

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  • Page 1: Table Of Contents

    PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Allexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1998 T –...

  • Page 2: Safety Information

    Also test with plug reversed PIONEER Service Manual. A subscription to, or ad- (Using AC adapter ditional copies of, PIONEER Service Manual may be plug as required) obtained at a nominal charge from PIONEER.

  • Page 3: Exploded Views And Parts List

    Therefore, when replacing, be sure to use parts of identical designation. • Screws adjacent to mark on the product are used for disassembly. 2.1 MINIDISC RECORDER (MJ-L5) 2.1.1 PACKING 3(1/2) L 13942296513 3(2/2)
  • Page 4 MJ-L5, SP-L5 3 7 63 1515 0 2.1.2 EXTERIOR Refer to "2.1.3 TOP PANEL ASSY". Refer to "2.1.4 MD MECHANISM ASSY". L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 5 MJ-L5, SP-L5 3 7 63 1515 0 EXTERIOR PARTS LIST Mark No. Description Part No. Mark No. Description Part No. MD MAIN Unit AWU7125 Angle ANG7189 MD TRANS Unit AWU7126 Rear Panel ANC7802 MD REG1 Unit AWU7154 Cord With Plug (J1)
  • Page 6 MJ-L5, SP-L5 3 7 63 1515 0 2.1.3 TOP PANEL ASSY 8(1/2) 8(2/2) L 13942296513 • TOP PANEL ASSY PARTS LIST Mark No. Description Part No. 1 MD KEYR Unit AWU7108 2 MD KEYL Unit AWU7109 3 Top Panel...
  • Page 7 MJ-L5, SP-L5 3 7 63 1515 0 2.1.4 MD MECHANISM ASSY L 13942296513 CN102 CN105 CN101 u163 CN103 http://www.xiaoyu163.com...
  • Page 8 MJ-L5, SP-L5 3 7 63 1515 0 • MD MECHANISM ASSY PARTS LIST Mark No. Description Part No. Mark No. Description Part No. S. Holder RNK2307 1 MD CORE MAIN Unit RWZ4326 2 MD CORE SW Unit RWZ4272 Worm Wheel...
  • Page 9 MJ-L5, SP-L5 3 7 63 1515 0 2.2 SURROUND PROCESSOR (SP-L5) 2.2.1 PACKING 3(1/2) 3(2/2) 2(1/2) 2(2/2) L 13942296513 PACKING PARTS LIST Mark No. Description Part No. Packing Case AHD7736 Pad F AHA7219 Pad R AHA7220 Sheet (750×600×0.5) Z23-007...
  • Page 10 MJ-L5, SP-L5 3 7 63 1515 0 2.2.2 EXTERIOR Refer to "2.2.3 TOP PANEL ASSY". L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 11 MJ-L5, SP-L5 3 7 63 1515 0 (1) EXTERIOR PARTS LIST Mark No. Description Part No. Mark No. Description Part No. PRO MAIN Unit AWU7122 Top Barrier AEC7151 PRO AMP Unit AWU7102 Rivet VEC1178 PRO TRANS Unit AWU7124 Bonnet...
  • Page 12 MJ-L5, SP-L5 3 7 63 1515 0 2.2.3 TOP PANEL ASSY 9(1/3) 9(2/3) 9(3/3) L 13942296513 • TOP PANEL ASSY PARTS LIST Mark No. Description Part No. 1 PRO KEYR Unit AWU7104 2 PRO KEYL Unit AWU7105 3 PRO IND Unit...
  • Page 13 MJ-L5, SP-L5 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 14: Schematic Diagram

    MJ-L5, SP-L5 3 7 63 1515 0 3. SCHEMATIC DIAGRAM 3.1 MINIDISC RECORDER (MJ-L5) 3.1.1 OVERALL CONNECTION DIAGRAM MD KEYL UNIT MD KEYR UNIT (AWU7109) (AWU7108) L 13942296513 1/2 - MD MAIN UNIT (AWU7125) AKP7032 AC POWER CORD (2.5A/250V 7A/125V)
  • Page 15 MJ-L5, SP-L5 3 7 63 1515 0 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". MD MECHANISM ASSY (AXA7069) MD CORE MAIN MD CORE SW UNIT UNIT...
  • Page 16 MJ-L5, SP-L5 3 7 63 1515 0 3.1.2 MD CORE MAIN and MD CORE SW UNITS MD CORE MAIN UNIT (RWZ4326) L 13942296513 PICKUP 10 11 LOADING MOTOR YELLOW BLACK SLED MOTOR ORANGE BLUE SPINDLE MOTOR BLACK INSIDE SW...
  • Page 17 MJ-L5, SP-L5 ¶ 1 – - are waveform numbers on pages 24 and 25. 3 7 63 1515 0 SIGNAL ROUTE : PLAYBACK SIGNAL : REC SIGNAL : OUTPUT DIGITAL AUDIO SIGNAL : INPUT DIGITAL AUDIO SIGNAL : RF SIGNAL L 13942296513 0.01...
  • Page 18 MJ-L5, SP-L5 3.1.3 MD MAIN (1/2), MD TRANS, MD REG1 and MD REG2 UNITS 3 7 63 1515 0 MD MAIN UNIT(1/2) (AWU7125) L 13942296513 –4.4 u163 http://www.xiaoyu163.com...
  • Page 19 MJ-L5, SP-L5 3 7 63 1515 0 : PLAYBACK SIGNAL ROUTE : RECORDING SIGNAL ROUTE : DIGITAL AUDIO SIGNAL ROUTE L 13942296513 –4.4 MD REG1 MD REG2 UNIT UNIT (AWU7154) (AWU7155) 13.3 MD TRANS UNIT POWER TRANSFORMER (AWU7126) ATT7036...
  • Page 20 MJ-L5, SP-L5 3 7 63 1515 0 3.1.4 MD MAIN (2/2) , MD KEYR and MD KEYL UNITS MD MAIN UNIT (2/2) (AWU7125) MD KEYR UNIT (AWU7108) L 13942296513 MD KEYL u163 UNIT (AWU7109) http://www.xiaoyu163.com...
  • Page 21 MJ-L5, SP-L5 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 22 MJ-L5, SP-L5 3 7 63 1515 0 Voltages MD CORE MAIN UNIT IC101 IC102 IC103 IC104 VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE 0.78V 1.53V 1.59V 1.2V 0.54V 0.73V 3.18V 1.2V 0.6V 0.77V 1.65V 3.0V 0.22V...
  • Page 23 MJ-L5, SP-L5 3 7 63 1515 0 IC106 IC108 IC109 IC110 IC112 IC113 NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE NO. VOLTAGE VOLTAGE 2.47V 2.77V 1.66V 4.95V 1.6V 0.49V 2.63V 2.77V 3.2V 1.62V 3.96V 1.61V 4.87V 3.2V 1.62V 2.63V...
  • Page 24 MJ-L5, SP-L5 3 7 63 1515 0 Waveforms Note: The encircled numbers denote measuring point in the schematic diagram and the PCB connection diagram. MD CORE MAIN UNIT IC101-pin35 (ADIPO) IC101-pin30 (WBO) IC102-pin1 (EFM MON) MODE: PLAY MODE: PLAY MODE: PLAY DISC: GGF1328 (MMD–212)
  • Page 25 MJ-L5, SP-L5 3 7 63 1515 0 CN103-pin1 (SLD +) CN103-pin4 (SP +) CN105-pin1 (LOAD –) MODE: PLAY MODE: PLAY MODE: STOP DC500mV/div., 5mSec/div. DC500mV/div., 2mSec/div. DC1V/div., 1mSec/div. –– GND –– GND –– GND CN105-pin1 (LOAD –) MODE: EJECT DC1V/div., 1mSec/div.
  • Page 26 MJ-L5, SP-L5 3 7 63 1515 0 3.2 SURROUND PROCESSOR (SP-L5) 3.2.1 OVERALL CONNECTION DIAGRAM PRO KEYR UNIT (AWU7104) PRO KEYL UNIT PRO IND UNIT (AWU7105) (AWU7145) DC FANMOTOR AXM7003 CN3651 KM200SA2L UNREG- IC3551 IC3571 IC3701 BUFFER1 PRO AMP UNIT...
  • Page 27 MJ-L5, SP-L5 3 7 63 1515 0 PRO AUX UNIT (AWU7146) IC3501 IC3531 BUFFER2 FUNC2 1/2, L 13942296513 PRO MAIN UNIT (AWU7122) SPEAKER u163 http://www.xiaoyu163.com...
  • Page 28 MJ-L5, SP-L5 3 7 63 1515 0 3.2.2 PRO MAIN (1/2), PRO TRANS and PRO AMP UNITS PRO MAIN UNIT (AWU7122) –9.4 CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE NO. 491001 FOR IC11 AND IC12 NO.
  • Page 29 MJ-L5, SP-L5 3 7 63 1515 0 IC3201(1/2) R3461 100 R3462 100 L3461,L3462 : ATH-059 AKE7042 IC3201(2/2) L 13942296513 POWER AMP –25.3 R3617,R3618 : ACN7032 26.5 : C CH AUDIO SIGNAL ROUTE u163 : S CH AUDIO SIGNAL ROUTE...
  • Page 30 MJ-L5, SP-L5 3 7 63 1515 0 3.2.3 PRO MAIN (2/2), PRO KEYR, PRO IND, PRO KEYL and PRO AUX UNITS PRO KEYR UNIT PRO KEYL UNIT (AWU7104) (AWU7105) PRO IND UNIT (AWU7145) S5921,S5922 : RSG1030 S5901,S5902 : RSG1031...
  • Page 31 MJ-L5, SP-L5 3 7 63 1515 0 PRO MAIN UNIT (AWU7122) IC3531(2/2) NJM4558MD (PB) D5201–D5204 : UDZ15B IC3531(1/2) (REC) NJM4558MD (PB) IC3571(2/2) NJM4558MD L 13942296513 (REC) (PB) (PB) IC3571(1/2) NJM4558MD (VCR) (VCR) (REC) (REC) (DVD) (DVD) (REC) (REC) (REC)

  • Page 32: Pcb Connection Diagram

    B C E Field effect SIDE B Chip Part P.C.Board transistor Resistor array 3-terminal regulator 4.1 MINIDISC RECORDER (MJ-L5) L 13942296513 4.1.1 MD CORE SW UNIT MD CORE SW UNIT SPINDLE MOTOR SLED MOTOR (RNP1721-B) CN103 u163 SIDE A SIDE B http://www.xiaoyu163.com...
  • Page 33 MJ-L5, SP-L5 3 7 63 1515 0 4.1.2 MD CORE MAIN UNIT ¶ 1 – - are waveform numbers on pages 24 and 25. MD CORE MAIN UNIT SIDE A CN701 10 11 (RNP1721-B) L 13942296513 IC101 IC106 IC102...
  • Page 34 MJ-L5, SP-L5 3 7 63 1515 0 4.1.3 MD MAIN UNIT STEREO CD RECEIVER (XC-L5) SURROUND PROCESSOR (SP-L5) IC4183 L 13942296513 CN104 IC4022 IC4025 IC4080 IC4024 Q4014 Q4012 IC4051 Q4020 IC4013 IC4014 J4901 Q4018 u163 CN4011 MD MAIN UNIT...
  • Page 35 MJ-L5, SP-L5 3 7 63 1515 0 Q4015 Q4017 Q4101 Q4104 Q4102 IC4101 Q4108 Q4103 Q4243 Q4022 IC4250 IC4171 Q4260 Q4151 Q4262 L 13942296513 IC4240 Q4242 Q4241 IC4301 Q4021 IC4201 Q4019 Q4040 Q4015 Q4013 Q4202 Q4204 Q4230 Q4232 Q4201...
  • Page 36 MJ-L5, SP-L5 3 7 63 1515 0 4.1.4 MD TRANS, MD REG1, MD REG2, MD KEYR and MD KEYL UNITS CN4012 AC POWER CORD IC4012 IC4052 IC4011 IC4016 IC4015 MD TRANS UNIT REG2 REG1 UNIT UNIT L 13942296513 (ANP7249-B)
  • Page 37 MJ-L5, SP-L5 3 7 63 1515 0 MD TRANS UNIT REG1 REG2 UNIT UNIT L 13942296513 (ANP7249-B) MD KEYL UNIT MD KEYR UNIT u163 SIDE B D E F G H http://www.xiaoyu163.com...
  • Page 38 3 7 63 1515 0 4.2 SURROUND PROCESSOR (SP-L5) 4.2.1 PRO MAIN, PRO AMP and PRO AUX UNITS PRO AUX UNIT PRO MAIN UNIT J5901 L 13942296513 STEREO CD RECEIVER (XC-L5) MINIDISC RECORDER (MJ-L5) IC21 IC22 u163 IC11 IC12 SIDE A http://www.xiaoyu163.com...
  • Page 39 MJ-L5, SP-L5 3 7 63 1515 0 PRO AMP UNIT (ANP7248-C) L 13942296513 DC FANMOTOR (AXM7003) IC22 u163 IC12 SIDE A http://www.xiaoyu163.com...
  • Page 40 MJ-L5, SP-L5 3 7 63 1515 0 PRO AMP UNIT PRO M Q3491–Q3494 (ANP7248-C) L 13942296513 Q53–Q56 IC3201 u163 IC3001 Q3611–Q3613 Q3521 Q3601–Q3603 Q3621 Q3651–Q3653 Q3522 SIDE B http://www.xiaoyu163.com...
  • Page 41 MJ-L5, SP-L5 3 7 63 1515 0 PRO MAIN UNIT PRO AUX UNIT Q3051–Q3053 L 13942296513 IC3701 Q5566–Q5568 Q5571 Q5562–Q5564 IC5501 u163 Q3523 Q5561 Q3521 IC3501 IC3571 Q3561 IC3551 Q5565 Q3522 Q3501 Q3502 Q3562 IC3531 SIDE B http://www.xiaoyu163.com...
  • Page 42 MJ-L5, SP-L5 3 7 63 1515 0 4.2.2 PRO TRANS, PRO KEYR, PRO IND and PRO KEYL UNITS PRO TRANS UNIT AC POWER CORD PRO KEYR UNIT (ANP7248-C) CN11 L 13942296513 PRO IND UNIT CN13 u163 PRO KEYL UNIT...
  • Page 43 MJ-L5, SP-L5 3 7 63 1515 0 PRO TRANS UNIT PRO KEYR UNIT (ANP7248-C) L 13942296513 PRO IND UNIT u163 PRO KEYL UNIT SIDE B J L M N http://www.xiaoyu163.com...

  • Page 44: Pcb Parts List

    562 × 10 → 5621 ............RN1/4PC 5 6 2 1 Mark No. Description Part No. Mark No. Description Part No. CAPACITORS 5.1 MINIDISC RECORDER (MJ-L5) C115 CCSQCH101J50 C119,C120 CCSQCH120J50 LIST OF ASSEMBLIES C146 CCSQCH121J50 MD CORE UNIT RWM2055 C125...
  • Page 45 MJ-L5, SP-L5 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. C4014 CEAT221M25 MD CORE SW UNIT C4222 CEAT330M25 C4026,C4030,C4031,C4036,C4061 CEAT470M16 SWITCHES C4171 CEAT470M16 C4323,C4324 CEAT4R7M50 S701 RSF1009 S702 RSF1010 C4110,C4114,C4255,C4256 CKSQYB102K50 C4701,C4702...
  • Page 46 MJ-L5, SP-L5 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. 5.2 SURROUND PROCESSOR (SP-L5) MD REG1 UNIT LIST OF ASSEMBLIES SEMICONDUCTOR IC4015 BA17805T PROCOMP ASSY AWM7383 PRO MAIN UNIT AWU7122 PRO AMP UNIT...
  • Page 47 MJ-L5, SP-L5 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. CN5501 52151-0710 7P JUMPER CONNECTOR C3727 CCSQSL681J50 CN3461 AKE7042 SPEAKER TERMINAL 6-P C3652 CEAL101M6R3 5221 SOCKET (19P) AKP7001 C3741,C3744 CEANL3R3M50 CN3652 CONNECTOR (19P)
  • Page 48 MJ-L5, SP-L5 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. PRO AUX UNIT C3433,C3434 CEAT101M35 C3444 CKSQYB102K50 SEMICONDUCTORS C3441-C3443 CKSQYB473K50 C3437,C3438 CKSQYF103Z50 Q3051,Q3052 2SD2114K RESISTORS Q3053 DTA124EK CAPACITORS R3441,R3442 RD1/4PU100J R3409,R3410 RD1/4PU563J...

  • Page 49: Adjustment

    MJ-L5, SP-L5 3 7 63 1515 0 6. ADJUSTMENT 6.1 MINIDISC RECORDER (MJ-L5) JIGS AND MEASURING INSTRUMENTS Thermometer Test Disc Oscilloscope For servo system adjustment ..........GGF1328 (MMD-212) Optical Power Meter For recording/playback inspection ....GGF1328 (MMD-212), GGF1277, Jitter Meter TGYS1 (or MMD-110), Commercial discs 6.1.1 NECESSARY ADJUSTMENT POINTS...
  • Page 50 Note: Although the MJ-L5 and XC-L7 can be directly connected, unrelated characters may be displayed in the rightmost two digits as they differ in the number of digits for display. And they also differ in the power source, no playback sound is obtained from the receiver.
  • Page 51 MJ-L5, SP-L5 3 7 63 1515 0 (3) Independent operation mode (Aging mode) 1 Short-circuit the jumper wires W205 and W4106 on the MD MAIN UNIT. 2 Independent operation mode (Aging mode) can be initiated by short-circuiting the S. REQ connector (pin 4) of the system bus (MD MAIN UNIT : CN4702) with the GND connector (pin 14) for 3 seconds after AC power is applied.
  • Page 52 MJ-L5, SP-L5 3 7 63 1515 0 6.1.3 MD Mechanism Assy Adjustment and Check 1 Temperature Check (Please perform this check soon after the power has been switched on.) Note: When IC101 (RF-AMP) or IC104 (mechanical controller) has been exchanged or when a correction changing VD+3 has been made, be sure to correctly perform all steps up to step 7.
  • Page 53 MJ-L5, SP-L5 3 7 63 1515 0 3 Grating Adjustment Step No. Operation Keys and Operation Method FL Display Status Remarks Short circuit MECH TEST MODE during the power EJECT Test mode ON, or press the ESC key. (Service remote control unit)(Fig.1) Insert the test disc GGF1328 (MMD-212).
  • Page 54 MJ-L5, SP-L5 3 7 63 1515 0 4 Preliminary Adjustment Step No. Operation Keys and Operation Method FL Display Status Remarks Press the STOP key. RST YOBI Return to menu display Press the ASES key (until AUT YOBI is displayed).
  • Page 55 MJ-L5, SP-L5 3 7 63 1515 0 6 Defocus adjustment Step No. Operation Keys and Operation Method FL Display Status Remarks Press the REC key. of-04 c0020 The C1 error with application of a focus offset of about 0.4 µm on the – side is displayed.
  • Page 56 MJ-L5, SP-L5 3 7 63 1515 0 7 Jitter/C1 Error Check at the time of Playback Step No. Operation Keys and Operation Method FL Display Status Remarks Press the CANCEL (for Remote control unit) key. a006F c0017 The fixed display of the C1 error is ended.
  • Page 57 MJ-L5, SP-L5 3 7 63 1515 0 Jitter/C1 Error Check at the time of Recording/Playback Step No. Operation Keys and Operation Method FL Display Status Remarks Short circuit MECH TEST MODE during the power EJECT Test mode ON, or press the ESC key.
  • Page 58 MJ-L5, SP-L5 3 7 63 1515 0 6.2 SURROUND PROCESSOR (SP-L5) 6.2.1 HOW TO ENTER / CANCEL TEST MODE TEST MODE : ON Note : This step is independent operation mode only. W171 Short circuit ENTER THE TEST MODE...

  • Page 59: General Information

    MJ-L5, SP-L5 3 7 63 1515 0 7. GENERAL INFORMATION 7.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. • List of IC M5M4V4400CTP-7, M56758FP, PD5450A, LR376481, BD7910FV, BR93LC56F, IR3R55M, AK4520A, PDG225A,...
  • Page 60 MJ-L5, SP-L5 3 7 63 1515 0 M56758FP (MD CORE MAIN UNIT : IC106) • 5-channel Actuator Driver • • Pin Assignment (Top View) Block Diagram REG+ CH3IN VBS2 – IN3– VBS1 REGB OUT3 IN3+ IN1+ – OUT3 IN1+ IN3–...
  • Page 61 MJ-L5, SP-L5 3 7 63 1515 0 PD5450B (MD CORE MAIN UNIT : IC104) • Mechanism Control microcomputer • Pin Assignment (Top View) L 13942296513 • Block Diagram I/O PORT Port P0 Port P1 Port P2 Port P3 Port P4...
  • Page 62 MJ-L5, SP-L5 3 7 63 1515 0 • Pin Function Name Description 1 to 7, 100 P96 to P90, P97 I/O These are 8 bit I/O ports with the same functions as P0. By software selection, it functions as the input terminals for the timers B0 to B2, the output terminals for the D/A converter, the expansion input terminals of the A/D converter, or the A/D trigger input terminals.
  • Page 63 MJ-L5, SP-L5 3 7 63 1515 0 Name Description 55 to 61, 63 P37 to P31, P30 I/O These are 8 bit I/O ports with the same functions as P0. A15 to A9, A8 The middle 8 bits (A8 to A15) of the address are put out.
  • Page 64 MJ-L5, SP-L5 3 7 63 1515 0 LR376481 (MD CORE MAIN UNIT : IC102) • Encode/Decode/Atrac • Pin Assignment (Top View) 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51...
  • Page 65 MJ-L5, SP-L5 3 7 63 1515 0 Name Description Name Description RAA4 Address output to external D-RAM; ADR4 Digital input signal DOUT Digital output signal RAA8 Address output to external D-RAM; ADR8 VDD3 – Power supply for internal PLL...
  • Page 66 MJ-L5, SP-L5 3 7 63 1515 0 BD7910FV (MD CORE MAIN UNIT : IC116) • Head Driver • Block Diagram Name Description PDGND Predrive GND EFM signal input Pre Driver MUTE Mute control N.C. N.C. Not used N.C. VOD2...
  • Page 67 MJ-L5, SP-L5 3 7 63 1515 0 IR3R55M (MD CORE MAIN UNIT : IC101) • RF Signal Processor • Block Diagram Name Description ∗ XDISC Logic signal output terminal (outputs DISC signal inversion signal) ∗ XSGAIN Logic signal output terminal (outputs SGAIN signal...
  • Page 68 MJ-L5, SP-L5 3 7 63 1515 0 AK4520A (MD MAIN UNIT : IC4301) • AD/DA Converter • Block Diagram AGND DGND 15 MCLK ∆Σ AINL+ Clock Decimation Modulator Divider AINL- Filter 25 CMODE ∆Σ AINR+ Decimation 11 LRCK Modulator...
  • Page 69 MJ-L5, SP-L5 3 7 63 1515 0 PDG225A (MD MAIN UNIT : IC4101) • System Control IC • Pin Function l l o l l o l l o L 13942296513 l l o l l o l l o...
  • Page 70 MJ-L5, SP-L5 3 7 63 1515 0 • Power on sequence of MD microcomputer Power on check Power can not on by MD key operation if DEMO mode Is DEMO mode ? information from the CD receiver is not received.
  • Page 71 MJ-L5, SP-L5 3 7 63 1515 0 • Rise-up sequence after AC power is applied of MD microcomputer Release the hardware reset. Reset Initialize the Set the port status. internal data Bus data System bus communication : Transfer the system power off request.
  • Page 72 MJ-L5, SP-L5 3 7 63 1515 0 LV1035M (PRO MAIN UNIT : IC3701) • Dolby Prologic IC • Block Diagram R-BPF2 L-BPF2 R-BPF1 L-BPF1 RECT RECT LOCDIFF LOCDIFF S-DC-OUT RT-IN RECT RECT C-DC-OUT LT-IN R-DC-OUT DC-OUT L-DC-OUT C-MODE VREF...
  • Page 73 MJ-L5, SP-L5 3 7 63 1515 0 PDC046 (PRO MAIN UNIT : IC5501) • System Control IC • Pin Function ∗ ∗ − − l a i l a i − l a i − L 13942296513 l l u −...
  • Page 74 MJ-L5, SP-L5 3 7 63 1515 0 • Rise-up sequence after AC power applied of processor microcomputer Reset Release the hardware reset. Initialize the Set the port status. internal data Bus data System bus communication process. transmission Perform the process every 30 msec.

  • Page 75: Diagnosis

    MJ-L5, SP-L5 3 7 63 1515 0 7.2 DIAGNOSIS DETAILS OF ERROR DISPLAY Error Display Details of Error Measure ÷ DEFECT occurred 10 times continuously during REC-PLAY. ÷ Check if there are scratches, dusts, fingerprints, or black Can't REC ÷...
  • Page 76 MJ-L5, SP-L5 3 7 63 1515 0 Error Display Details of Error Measure ÷ TOC read was incorrect or could not be read properly. ÷ The TOC data recorded on the disc do not comply with ? DISC MD Standards, so try using another disc.

  • Page 77: Disassembly

    MJ-L5, SP-L5 3 7 63 1515 0 7.3 DISASSEMBLY 7.3.1 MINIDISC RECORDER (MJ-L5) (1) Bonnet and Top Panel (2) MD MAIN UNIT and MD MECHANISM ASSY × 2 Bonnet Shield Barrier Unhook L 13942296513 5 Unhook (×2) ×2 MD Shield ×2...
  • Page 78 MJ-L5, SP-L5 3 7 63 1515 0 (3) MD MECHANISM ASSY Removal of the Servo Mechanism Assy 1 Remove the screw A. 2 Disconnect the connectors (CN102, CN103, CN105), open the hook of part A, and tilt the upper side of the MD CORE MAIN UNIT to the front.
  • Page 79 MJ-L5, SP-L5 3 7 63 1515 0 Removal of the MD Pick-up Screw A 1 Remove the MD Head. (One screw A) (M1.7 × 4) 2 Remove the Screw Guide at the lower side of the MD Pick-up. (One screw B)
  • Page 80 MJ-L5, SP-L5 3 7 63 1515 0 Removal of the Head Lifter Head Lifter Installation 1 Remove the Lifter SP. 1 Install part A in the Servo Base with the Head Lifter tilted to the 2 Tilt the Head Lifter to the rear and push part A to disengage it.
  • Page 81 MJ-L5, SP-L5 3 7 63 1515 0 7.3.2 SURROUND PROCESSOR (SP-L5) (1) Bonnet and Top Panel (2) PRO MAIN UNIT × 2 Bonnet ×3 Top Barrier Unhook ×3 5 Unhook L 13942296513 Top Panel PRO MAIN UNIT u163 http://www.xiaoyu163.com...

  • Page 82: Block Diagram

    MJ-L5, SP-L5 3 7 63 1515 0 7.4 BLOCK DIAGRAM 7.4.1 MINIDISC RECORDER (MJ-L5) L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 83 MJ-L5, SP-L5 3 7 63 1515 0 7.4.2 SURROUND PROCESSOR (SP-L5) POWER SUPPLY BLOCK – B V + 5 V + 9 MAIN TRANSFORMER V – 9 V – 7 UNREG- D1 – D4 E + 5 L 13942296513...

  • Page 84: Panel Facilities And Specifications

    MJ-L5, SP-L5 3 7 63 1515 0 8. PANEL FACILITIES AND SPECIFICATIONS 8.1 PANEL FACILITIES 8.1.1 MINIDISC RECORDER (MJ-L5) MINIDISC ASES L 13942296513 PRO LOGIC AUTO MARK MONO LP TIMER WAKE SLEEP DIGITAL ASES TUNED STEREO MONO This unit is not provided with its own display section; the following 1 Recording button (¶)
  • Page 85 This selector is used to switch between system components (XC- 2 Ÿ (Dolby) MODE indicator L5 and MJ-L5) and main unit operations. When set to SYSTEM, 3 Delay Time button the remote control unit can be used to operate the CD receiver L 13942296513 and MiniDisc recorder.

  • Page 86: Specifications

    MJ-L5, SP-L5 3 7 63 1515 0 8.2 SPECIFICATIONS 8.2.1 MINIDISC RECORDER (MJ-L5) 8.2.2 SURROUND PROCESSOR (SP-L5) Recording Method Magnetic field modulation Amplifier Section overwriting type Output for Center Speakers Playback Method ........Non-contact optical type Continuous Power output (RMS) ..........30 W (1 kHz, THD 10%, 8 Ω)

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