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Technics SL-1500CEB Service Manual
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Technics SL-1500CEB Service Manual

Technics SL-1500CEB Service Manual

Direct drive turntable system
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TABLE OF CONTENTS

1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution For AC Cord (For EB) ------------------------- 4
1.3. Safety Parts Information --------------------------------- 4
2 Warning -------------------------------------------------------------- 5
(PbF)---------------------------------------------------------- 5
3 Specifications ----------------------------------------------------- 7
5 Troubleshooting Guide ----------------------------------------- 9
5.1. No Power ---------------------------------------------------- 9
5.2. LED Blinking ----------------------------------------------- 11
5.5. LED No Illumination--------------------------------------16
Direct Drive Turntable System
Model No.
Product Color: (S)...Silver
PAGE
6.1. Types of Screws------------------------------------------ 20
6.2. Disassembly Flow Chart ------------------------------- 21
Ass'y--------------------------------------------------------- 22
6.5. Disassembly of Insulator Unit ------------------------- 22
6.7. Disassembly of DC Motors ---------------------------- 23
6.8. Disassembly of Phono Out P.C.B. ------------------- 23
Queuing Knob and Armrest Ass'y ------------------- 24
6.10. Disassembly of Main P.C.B. --------------------------- 26
6.11. Disassembly of SMPS P.C.B. ------------------------- 26
6.12. Disassembly of Panel P.C.B.-------------------------- 27
7 Measurements and Adjustments -------------------------- 28
7.1. Service Mode Startup Procedure -------------------- 28
7.2. Auto lift-up function Adjustment ---------------------- 29
© Panasonic Corporation 2019. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
SL-1500CEB
SL-1500CEG
SL-1500CPP
(K)...Black (For EB, EG)
PSG1905001CE
A6
PAGE

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Summary of Contents for Technics SL-1500CEB

  • Page 1: Table Of Contents

    PSG1905001CE Direct Drive Turntable System SL-1500CEB Model No. SL-1500CEG SL-1500CPP Product Color: (S)...Silver (K)...Black (For EB, EG) TABLE OF CONTENTS PAGE PAGE 1 Safety Precautions----------------------------------------------- 3 6 Disassembly and Assembly Instructions--------------- 19 1.1. General Guidelines---------------------------------------- 3 6.1. Types of Screws------------------------------------------ 20 1.2.
  • Page 2 7.3. Automatic Adjustment----------------------------------- 31 8 Block Diagram --------------------------------------------------- 32 9 Wiring Connection Diagram --------------------------------- 33 10 Exploded View and Replacement Parts List ----------- 34 10.1. Electrical Replacement Parts List -------------------- 34 10.2. Mechanical Replacement Part List ------------------ 35 10.3. Cabinet Parts Location 1 ------------------------------- 37 10.4.

  • Page 3: Safety Precautions

    1 Safety Precautions 1.1. General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards.

  • Page 4: Caution For Ac Cord (For Eb)

    1.2. Caution For AC Cord (For EB) A 10-ampere fuse is fitted in this plug. (10 ampere) Figure 1-2 1.3. Safety Parts Information Safety Parts List: There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Exploded View &...

  • Page 5: Warning

    2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi- tive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).
  • Page 6 Service caution for repair work using Lead Free Solder (PbF) • The lead free solder has to be used when repairing the equipment for which the lead free solder is used. (Definition: The letter of “PbF” is printed on the PCB using the lead free solder.) •...

  • Page 7: Specifications

    3 Specifications  General Power supply AC 110 V to 240 V, 50/60 Hz (EB/EG) AC 120 V, 60 Hz (PP) Power consumption 8.0 W (Power ON) Approx 0.2 W (Power OFF) Dimensions (W x H x D) 453 mm x 169 mm x 372 mm (17 - ”...

  • Page 8: Location Of Controls And Components

    4 Location of Controls and Components Front Arm clamp Tone arm Arm rest Locking nut Cue lever Head shell Balance weight Centre spindle Stylus pressure START-STOP button control ON/OFF (power) [ Auxiliary weight mounting location Arm lock Anti- skating control Speed select buttons Arm-height control ring...

  • Page 9: Troubleshooting Guide

    5 Troubleshooting Guide 5.1. No Power No power AC power supply cord Plug the cord in firmly. plugged in? Is AC INLET AC power supply cord part damaged? damaged? Replace AC CORD. Replace SMPS PCB. (No clicking, Not return back, etc.) Is Power Botton operating normally?
  • Page 10 No power (from the previous section) Is the correct voltage presented between CK2111 (+24V) and Replace MAIN PCB. CK2113 (GND) on MAIN PCB to confirm Power button operation? CK2111 CK2113 (+22.8 to +25.2 V) (GND) MAIN PCB CK2113 Pin 3 of IC2105 Pin 3 of IC2102 (GND) (+4.6 to +5.0 V)

  • Page 11: Led Blinking

    5.2. LED Blinking LED Blinking of LED Blinking of 2 times LED Blinking of 33 LED 45 LED both 33 and 45 LED Abnormal speed or Abnormal FG signal or Abnormal +24 V. reverse rotation Abnormal Hallsensor signal Replace MAIN PCB. Is the pulse signal (0-5V) output between...

  • Page 12: No Sound (Large Humming Noise)

    5.3. No sound (Large humming noise) 5.3.1. No sound from PHONO OUT Terminal No sound from PHONO OUT Terminal Back of main unit (Large humming noise) PHONO EARTH AUTO LIFT UP Set the external output switch PHONO OUT LINE OUT to "OFF".
  • Page 13 5.3.2. No sound from LINE OUT Terminal No sound from LINE OUT Terminal Back of main unit (Large humming noise) PHONO EARTH AUTO LIFT UP Set the external output switch PHONO OUT LINE OUT to "ON". External output switch When connecting the external output terminals, do not connect the PHONO earth lead.
  • Page 14 No sound from LINE OUT Terminal CK2023:-12V CK2021:+12V (Large humming noise) CK2022:GND (from the previous section) Connector P2102 Is the correct voltage presented at following points? MAIN PCB Normal: CK2021-CK2022(GND) : +11.5 to +12.5V CK2023-CK2022(GND) : -11.5 to -12.5V Disconect Connector P2102. Is the correct voltage presented at following points? Normal: CK2021-CK2022(GND) : +11.5 to +12.5V...

  • Page 15: Turntable Does Not Operate (No Rotation)

    5.4. Turntable Does Not Operate (No rotation) Turntable does not operate (No rotation) Does turntable rotate smoothly NO (Not rotated smoothly) when rotated with hand in power OFF condition? Is the turntable correctly YES (rotated) attached? Replace MAIN PCB. Attach the turntable correctly. Does the turntable rotate when the power is turned ON after the connector...

  • Page 16: Led No Illumination

    5.5. LED No Illumination 5.5.1. LEDs for speed select buttons (both [33] and [45]) --- No Illumination X1001 : 17.6904MHz Strobe light --- No Illumination Is the clock (X1001) for microcomputer (IC1001) oscillated? Replace MAIN PCB. MAIN PCB IC1001 microcomputer Pin 1 (Probe) Pin 2 (GND) X1001 : 17.6904MHz...
  • Page 17 5.5.2. LED for speed select button ([33] or [45]) --- No Illumination LED for 33 or 45 --- No Illumination Is the clock (X1001) for microcomputer Replace MAIN PCB. (IC1001) oscillated? Note: Refer to “Chap. 5.5.1. LEDs for speed select buttons (both [33] and [45]) --- No Illumination” for check/measurement point.

  • Page 18: Auto Lift-Up Function Does Not Operate Correctly

    5.6. Auto lift-up function does not operate correctly Auto lift-up function does not operate correctly Back of main unit Auto lift-up switch AUTO LIFT UP Does the auto lift-up switch on the rear side set to “ON”? LINE OUT Measure distance between the Set the auto lift-up switch to “ON”.

  • Page 19: Disassembly And Assembly Instructions

    6 Disassembly and Assembly Instructions Caution Note: • This section describes the disassembly and/or assembly procedures for all major printed circuit boards & main compo- nents for the unit. (You may refer to the section of “Main components and P.C.B Locations” as described in the service manual) •...

  • Page 20: Types Of Screws

     Note for assembly and disassembly • Replace the PCB, etc. from the bottom cover side. • When turning the unit over, be sure to close the dust cover or put a cardboard as a base, and place the unit on a soft thick cloth or cushion, etc, to prevent cracking.

  • Page 21: Disassembly Flow Chart

    6.2. Disassembly Flow Chart T/T Rubber Mat and Turntable Ass’y Insulator Unit Bottom Chassis Ass’y Main P.C.B. DC Motors Phono Out P.C.B. SMPS P.C.B. Panel P.C.B. Tone Arm All Unit Ass’y, Queuing Knob and Armrest Ass’y 6.3. Main Components and P.C.B. Locations...

  • Page 22: Disassembly Of T/T Rubber Mat And Turntable Ass'y

    6.4. Disassembly of T/T Rubber Mat 6.5. Disassembly of Insulator Unit and Turntable Ass’y • Refer to “Disassembly of T/T Rubber Mat and Turntable Ass’y”. Step 1 Remove T/T Rubber Mat and Turntable Ass’y as arrow Step 1 Place the Dust Cover Unit on Cloth. shown.

  • Page 23: Disassembly Of Dc Motors

    6.7. Disassembly of DC Motors Step 4 Detach 3P Wire at connector (P4001) on Phono Out P.C.B.. • Refer to “Disassembly of T/T Rubber Mat and Turntable Step 5 Remove 3 screws. Ass’y”. Step 6 Remove RCA Shield. • Refer to “Disassembly of Insulator Unit”. •...

  • Page 24: Disassembly Of Tone Arm All Unit Ass'y, Queuing Knob And Armrest Ass'y

    6.9. Disassembly of Tone Arm All Step 7 Remove screw. Step 8 Remove Lock Plate. Unit Ass’y, Queuing Knob and Armrest Ass’y • Refer to “Disassembly of T/T Rubber Mat and Turntable Ass’y”. • Refer to “Disassembly of Insulator Unit”. •...
  • Page 25 6.9.1. Removing the Queuing Knob Note: When attaching and removing the Armrest Ass’y, use a Driver Bit (No. 2) or small type of Monkey Wrench, etc. to Step 1 Remove the Queuing Knob as arrow shown. remove the screw because of the narrow gap (max 25 mm) of the fixing screw part of the Armrest Ass’y.

  • Page 26: Disassembly Of Main P.c.b

    6.10. Disassembly of Main P.C.B. 6.11. Disassembly of SMPS P.C.B. • Refer to “Disassembly of T/T Rubber Mat and Turntable • Refer to “Disassembly of T/T Rubber Mat and Turntable Ass’y”. Ass’y”. • Refer to “Disassembly of Insulator Unit”. • Refer to “Disassembly of Insulator Unit”. •...

  • Page 27: Disassembly Of Panel P.c.b

    6.12. Disassembly of Panel P.C.B. • Refer to “Disassembly of T/T Rubber Mat and Turntable Ass’y”. • Refer to “Disassembly of Insulator Unit”. • Refer to “Disassembly of Bottom Chassis Ass’y”. Step 1 Remove 5 screws. Step 2 Lift up the Panel P.C.B.. Step 3 Detach 11P Wire at connector (P200) on Panel P.C.B..

  • Page 28: Measurements And Adjustments

    7 Measurements and Adjustments Use the Service Mode to adjust this unit (Auto lift-up function Adjustment and Automatic Adjustment). • Auto lift-up function Adjustment:: Perform this adjustment when TONE ARM UNIT, MAIN PCB or MOTOR is replaced. • Automatic Adjustment: Perform this adjustment when the DC Motor Unit or MAIN PCB is replaced.

  • Page 29: Auto Lift-Up Function Adjustment

    7.2. Auto lift-up function Adjustment This function automatically lifts up the tone arm after a record finishes playing. It prevents the last groove from playing back repeat- edly. Perform this adjustment when TONE ARM UNIT, MAIN PCB or MOTOR is replaced. Measure a detection point of the record end and then set auto lift-up point according to the detection point.
  • Page 30 4. To confirm setting 1 or 2, press Speed select button [33] briefly. [33]LED flashing shows which postion is setting for 3 seconds as follows. Position 1 : 1 sec. period Duty 50% (500ms:ON, 500ms:OFF --- 3 times) Position 2 : 2 flashing within 1 second (100ms:ON, 100ms:OFF, 100ms:ON, 700ms:OFF --- 3 times) For position 1, to set to position 2, press and hold the speed selection button [33] for at least 3 seconds.

  • Page 31: Automatic Adjustment

    7.3. Automatic Adjustment This adjustment is automatically performed based on the learning function of the microcomputer. The following items of measurement/adjustment are automatically performed. • Rotation accuracy (The reference voltage value) • Start-up time • FG Wow and flutter • Stop angle •...

  • Page 32: Block Diagram

    8 Block Diagram TONE ARM SMPS PCB MAIN PCB PHONO OUT PCB RESISTANCE DIVISION JK4001 FUSE 2A P2101 P1730 SOLENOID S4001 P600 PHOTOINTERRUPTER PCB P4001 PHONO FUSE 0.3A -12V P4002 JK4002 MUTE AC IN DC/DC RESISTANCE DIVISION DC MOTOR P1005 P1006 P1002 Motor PWM+ /PWM- Driver MICROCOMPUTER...

  • Page 33: Wiring Connection Diagram

    SMPS P.C.B. DC MOTORS P4001 WHITE BLUE TO TONE ARM PHONO OUT P.C.B. ALL UNIT ASS’Y BROWN PIPE BLACK TO EARTH WIRE P1700 AC120 V, 60 Hz (PP) AC110 V - 240 V, 50/60 Hz (EB/EG) SL-1500CEB/EG/PP WIRING CONNECTION DIAGRAM...

  • Page 34: Exploded View And Replacement Parts List

    10 Exploded View and Replacement Parts List 10.1. Electrical Replacement Parts List Safety Ref. Part No. Part Name & Qty Remarks Description PRINTED CIRCUIT BOARDS PCB1 TNPA7005AB MAIN P.C.B. PRINTED CIRCUIT BOARDS PCB2 TNPA7011AA PANEL P.C.B. PRINTED CIRCUIT BOARDS PCB3 TNPA7014AB PHONO OUT P.C.B.

  • Page 35: Mechanical Replacement Part List

    10.2. Mechanical Replacement Part List Safety Ref. Part No. Part Name & Qty Remarks Description Safety Ref. Part No. Part Name & Qty Remarks TZTKF01BC3E GROUND PLATE Description WITH TERMINAL CABINET TZTKF02BE7E TOP PANEL ASS'Y EB-K CHASSIS (BLACK) EG-K L6YZYJ000004 DC MOTORS TZTKF01BC2E TOP PANEL ASS'Y...
  • Page 36 Safety Ref. Part No. Part Name & Qty Remarks Description TPCE30501 PACKING CASE EG-K TPCE30801 PACKING CASE PP-S TPCE30601 PACKING CASE EB-S TPDA34201 TOP CUSHION TPEH964-1 (450X550MM) TPEH965-1 (600X600MM) TPEH966 PROTECTION SHEET (450X750MM) TPEH980 PE BAG (MIRAMAT 600X500) TPH0284 CUSHION UNIT TPDA34211 PICK UP CUSHION ACCESSORIES...

  • Page 37: Cabinet Parts Location

    10.3. Cabinet Parts Location 1 21-1 21-2 21-3 (SMPS P.C.B.) (PANEL P.C.B.) (PHONO OUT P.C.B.) (MAIN P.C.B.) SL-1500CEB/EG/PP CABIENT DRAWING...

  • Page 38: Cabinet Parts Location

    10.4. Cabinet Parts Location 2 SL-1500CEB/EG/PP CABIENT DRAWING...

  • Page 39: Packaging

    10.5. Packaging (FOR EB ONLY) (FOR PP ONLY) (FOR EG ONLY) *1 : P7 SL-1500C *1 : P7 FRONT POLYFOAM *1 : P7 REAR POLYFOAM SL-1500CEB/EG/PP *2 : THIS PART IS NOT SUPPLIED. PACKAGING DRAWING MMH1905...

This manual is also suitable for:

Sl-1500cegSl-1500cpp