Pioneer YPM-MG2196ZF Service Manual

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Service

Manual

CD PLAYER

YPM-MG2196

- The CD mechanism employed in this model is one of G1 series.

CONTENTS

1. SAFETY INFORMATION ............................................2

2. EXPLODED VIEWS AND PARTS LIST .......................4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8

4. PCB CONNECTION DIAGRAM ................................18

5. ELECTRICAL PARTS LIST ........................................30

6. ADJUSTMENT..........................................................33

PIONEER ELECTRONIC CORPORATION

PIONEER ELECTRONICS SERVICE INC.

PIONEER ELECTRONIC [EUROPE] N.V.

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER ELECTRONIC CORPORATION 1999

FORD

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

7. GENERAL INFORMATION .......................................36

7.1 DIAGNOSIS ........................................................36

7.1.1 TEST MODE ..............................................36

7.1.2 DISASSEMBLY .........................................43

7.2 IC ........................................................................49

7.3 EXPLANATION ...................................................53

7.3.1 CIRCUIT DESCRIPTIONS .........................53

7.3.2 MECHANISM DESCRIPTIONS.................66

K-ZZS. JUNE 1999 Printed in Japan

ORDER NO.

CRT2389

Table of Contents

Summary of Contents for Pioneer YPM-MG2196ZF

Page 1: Table Of Contents
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 Alexandra Road, #04-01, Singapore 159936 C PIONEER ELECTRONIC CORPORATION 1999 K-ZZS. JUNE 1999 Printed in Japan...
Page 2: Safety Information
YPM-MG2196ZF - CD Player Service Precautions - When the Repair is Complete 1. For pickup unit(CXX1312) handling, please refer When the repair is complete, make the CD mechanism to"Disassembly"(see page 43). ready for transportation During replacement, handling precautions shall be...
Page 3 YPM-MG2196ZF...
Page 4: Exploded Views And Parts List
YPM-MG2196ZF 2. EXPLODED VIEWS AND PARTS LIST 2.1 CD MECHANISM...
Page 5 YPM-MG2196ZF NOTE: - Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List. ∇ mark on the product are used for disassembly. - Screws adjacent to - CD MECHANISM SECTION PARTS LIST Mark No. Description Part No.
Page 6 YPM-MG2196ZF Mark No. Description Part No. Mark No. Description Part No. 91 Gear CNV5048 141 Ball CNR1189 92 Gear CNV5049 142 Bearing CNR1423 93 Holder CNV5056 143 Belt CNT1079 94 Pulley CNV5058 144 Holder CNV5037 95 Arm CNV5061 145 Guide...
Page 7 YPM-MG2196ZF Mark No. Description Part No. 192 Bracket Unit CXB4306 CPT231SXTD Photo-Transistor(Q876,877) 194 Photo-Interrupter(Q1) RPI-221 195 LED(D883) CL202IRXTU 196 Tray Assy CXB4307 197 Chassis Unit CXB4315 198 Arm Unit CXB4953 199 Arm Unit CXB4954 CPT231SXTD Photo-Transistor(Q881) 201 Switch(Max Detect) CSN1052...
Page 8: Block Diagram And Schematic Diagram
YPM-MG2196ZF 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM CD CORE UNIT PU UNIT(SERVICE) SIDE PCB CN861 CN801 RF AMP IC201 IC101 UPD63702AGF UPC2572GS Q101 SHOCKP HOLOGRAM CONTRO UNIT DIGITAL SERVO Q102 IC501 PROCESSOR FOCUS ACT. CXD2 TRACKING ACT.
Page 9 YPM-MG2196ZF DIGITAL 8fs DF D/A LPF COMPRESSION Q603 CN701 IC503 IC601 CD MUTE DATA PD4501B AK4321VF SHOCKPROOF LRCK CONTROL XTLI Q602 IC501 CXD2511R Q601 EMPH C502 MSM514400DP-60TS 4M DRAM 5V REGULATOR IC702 X701 V+5V BA05SFP POWER ELVSNS MOTOR DRIVER IC802...
Page 10 YPM-MG2196ZF 3.2 CD CORE UNIT Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. CD CORE UNIT DIGITAL SERVO PROCESSOR DIGITAL SIGNAL PROCESSOR CD 4CH DRIVER RF AMP 5V REGULATOR...
Page 11 YPM-MG2196ZF CESSOR DRAM SHOCKPROOF CESSOR CONTROL 8fs DF D/A LPF MUTE DIGITAL COMPRESSION ROLLER...
Page 12 YPM-MG2196ZF Note:1. The encircled numbers denote measuring pointes in the circuit diagram. 2. Reference voltage REFOUT:2.5V - Waveforms 1 RFO 1 RFO 1 CH1: RFO 0.5V/div. 0.2µs/div. 0.5V/div. 0.5µs/div. 1V/div. 0.5ms/div. 2 CH2: MIRR Normal mode: play Test mode 5V/div.
Page 13 YPM-MG2196ZF 3 CH1: FIN 1V/div. 8 CH1: TEY 8 CH1: TEY 0.5V/div. 0.5V/div. 0.2s/div. 5ms/div. 500µs/div. $ CH2: HOLD 6 CH2: FEY ! CH2: SD 5V/div. 0.1V/div. 0.5V/div. µ Normal mode: The defect part passes 800 Normal mode: AGC after focus close REFOUT→...
Page 14 YPM-MG2196ZF 8 CH1: TEY 8 CH1: TEY 0.5V/div. & SCKO 0.5V/div. 2V/div. 500ns/div. 5ms/div. 10ms/div. 9 CH2: TIN 9 CH2: TIN 0.5V/div. 0.5V/div. Test mode: 100 tracks jump(FWD) Normal mode: Play Play REFOUT→ REFOUT→ REFOUT→ REFOUT→ REFOUT→ ) CH1: RCH 2V/div.
Page 15 YPM-MG2196ZF 3.3 MOTOR PCB(A), MOTOR PCB(B), SIDE PCB MOTOR PCB(B) SIDE PCB M4 CARRIAGE CXB3178 CONT1 VREF HOME M5 SPINDLE PGND CXM1120 DISC INSERT DETECT AGND VREF (SERVICE) M1 : CXB3174 M3 : CXB3175 ELVSNS ELV SENSE Q1 : RPI-221...
Page 16 YPM-MG2196ZF 3.4 MOTOR PCB(A), MOTOR PCB(B), SIDE PCB PCB UNIT(C) FORD PCB DETECT PCB UNIT(B) FORDSW PCB S867: DOOR CSN1052 S868: LOAD CSN1052 S866: MODE CSN1052 CN869 PCB UNIT(A) LOADING CXB3177 Q876 Q877 PHOTO(L) PCB LOAD MOTOR PCB G H I J K...
Page 17 YPM-MG2196ZF...
Page 18: Pcb Connection Diagram
YPM-MG2196ZF 4. PCB CONNECTION DIAGRAM 4.1 CD CORE UNIT SIDE A CN861 NOTE FOR PCB DIAGRAMS 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic dia- gram.
Page 19 YPM-MG2196ZF SIDE B...
Page 20 YPM-MG2196ZF 4.2 SIDE PCB SIDE A SIDE PCB PU UNIT CN801...
Page 21 YPM-MG2196ZF 4.3 MOTOR PCB(A) MOTOR PCB(A) M3 ELV CAM GEAR ELV SENSE CN862...
Page 22 YPM-MG2196ZF 4.4 MOTOR PCB(B) SPINDLE MOTOR MOTOR PCB(B)
Page 23 YPM-MG2196ZF CN864 CARRIAGE...
Page 24 YPM-MG2196ZF 4.5 PCB UNIT(B), PCB UNIT(A) PCB UNIT(A) S886 S887 CLAMP PCB UNIT(B) CN869...
Page 25 YPM-MG2196ZF 4.6 LOAD MOTOR PCB LOAD MOTOR PCB LOADING...
Page 26 YPM-MG2196ZF 4.7 FORD PCB SIDE B SIDE A FORD PCB FORD PCB CN802...
Page 27 YPM-MG2196ZF 4.8 PHOTO(L) PCB, PCB UNIT(C) PHOTO(L) PCB PCB UNIT(C) Q881 S885 MAX DETECT Q877 Q876 D883...
Page 28 YPM-MG2196ZF 4.9 FORDSW PCB SIDE A FORDSW PCB MODE LOAD DOOR...
Page 29 YPM-MG2196ZF SIDE B FORDSW PCB...
Page 30: Electrical Parts List
YPM-MG2196ZF 5. ELECTRICAL PARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
Page 31 YPM-MG2196ZF =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S102J CKSRYB222K50 RS1/16S102J CEV4R7M35 RS1/16S102J CKSRYB273K25 RS1/16S103J CCSRCH101J50 RS1/16S102J CKSQYB104K25 RN1/16SC8200D CKSRYB332K50 RN1/16SC8200D CKSQYB473K16 RS1/16S102J CKSRYB103K25 RN1/16SC4301D CKSRYB391K50 RN1/16SC4301D...
Page 32 YPM-MG2196ZF =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- Unit Number : Unit Name Photo(L) PCB Photo-transistor CPT231SXTD Photo-transistor CPT231SXTD Unit Number : Unit Name Fordsw PCB Spring Switch(MODE) CSN1052 Spring Switch(DOOR) CSN1052 Spring Switch(LOAD) CSN1052 Unit Number :...
Page 33: Adjustment
YPM-MG2196ZF 6. ADJUSTMENT - Connection Diagram Commander indication data for CD mechanism module control DATA TRACK DISC STATUS STATUS MINUTE SECOND ADDRESS MODE LENGTH TO POWER SUPPLY COMMANDER CD MECHANISM MODULE YPM-MG2196ZF LCD DISPLAY LOAD1 LOAD2 LOAD3 LOAD4 LOAD5 LOAD6...
Page 34: Checking The Grating After Changing The Pickup Unit
YPM-MG2196ZF CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT • Note : The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha- nism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted PU unit for the CD mechanism module.
Page 35 YPM-MG2196ZF Ech → Xch 20mV/div, AC Grating waveform Fch → Ych 20mV/div, AC 0° 30° 45° 60° 75° 90°...
Page 36: General Information
YPM-MG2196ZF 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 TEST MODE - CD Test Mode 2) Description of the Test Mode 1) Precautions on Adjustment • The unit employs a single voltage (+5V) for the regu- Adjustment of this unit is done in parallel with the...
Page 37 YPM-MG2196ZF - CD Player Flowchart ACC,BACKUP ON [Key] [TEST IN] Test Mode In Contents Display [CD ON/OFF] Source CD [SCAN REG-ON] [DISC3 F-CLS] [DISC1 T-CLS] [DISC6 C/T] Power ON Power ON Mechanism Test Mode New Test Mode (T.OFFSET adjustment required) (T.OFFSET adjustment not required)
Page 38 YPM-MG2196ZF - CD Player Mechanism Flowchart ACC,BACKUP ON [Key] [TEST IN] Test Mode In Contents Display [CD ON/OFF] Source CD [DISC1 T-CLS] [SCAN REG-ON] [DISC3 F-CLS] [DISC6 C/T] CD Test Mode New Test Mode Mechanism Test In CD Test Mode...
Page 39 YPM-MG2196ZF Operating Procedures for Ejecting a Clamped Disc [DISC1 T-CLS] Selects CAMMOTOR Press [TRK– R-KICK]. Display changes sequentially through 32→33→23→22. Want to eject the currently clamped disc? Using the [TRK– R-KICK], drive the CAMMOTOR until the display changes from 22 to 20.
Page 40 YPM-MG2196ZF - New Test Mode Principally, discs are played normally in this test mode. When the test mode has been turned on, it will indicate when (in absolute time) and why an error occurred. Errors include off-focus, spindle lock disengagement, unavailability of sub-code reading and sound skipping.
Page 41 YPM-MG2196ZF (5) LCD Display Example • When a protection/error has occurred (8-digit indica- • While the setup is in progress tion LCD) 8-digit indication LCD TNo. Display of occurrence No. and occurrence time (in absolute time) TNo. • The operation mode (PLAY, SEARCH, etc.) is identical with the normal mode.
Page 42 YPM-MG2196ZF Code Name Description Door OPENING While the mechanism is in operation, should have been closed a door was opened. Roller OFF time-out 4 seconds have elapsed before completing the roller OFF (the cam gear has not been rotated to the roller-OFF end position).
Page 43: Disassembly
YPM-MG2196ZF 7.1.2 DISASSEMBLY left) in the direction (C), remove the Tray holder. 3. Lift up the Tray assy to remove it. - How to remove the Tray Assy * Be careful not to remove the Tray hooks from the Tray 1.
Page 44 YPM-MG2196ZF 10. Remove the screw, pressure spring and collar. Lift up the Carriage mech assy to remove it. Screw * Screw tightening torque: 2.6kgfcm Pressure spring Collar Carriage mech Assy Fig. 4 - How to remove the Pickup unit 1. Remove the pulling spring, torsion spring and E type Pulling spring washer.
Page 45 YPM-MG2196ZF 8. Loosen the 2 screws. Remove the plate spring and the rack. Grease (Yellow: 9. Pull out the feed screw from the Pickup unit. PG-641) Plate spring Rack Feed screw Grease (White: KD-1) Grease (Yellow: PG-641) Pickup unit Fig. 7 - How to remove the Carriage Motor Assy 1.
Page 46 YPM-MG2196ZF 7. Loosen the 2 screws (D). Remove the Gear cover. Front 8. Loosen the 3 screws (E). Remove the Motor bracket assy. Motor bracket assy Gear cover Fig. 10 9. Remove the 5 polyslider washers, then gears and shaft.
Page 47 YPM-MG2196ZF 5. Remove the belt (large). Loading motor 6. De-solder at the points (B) and (C). Loading motor bracket 7. Loosen the 2 screws. Remove the Loading motor bracket. Belt Belt (large) (small) 8. Remove the belt (small). 9. Loosen the 2 screws. Remove the Loading motor.
Page 48 YPM-MG2196ZF (left) including the Loading motor. 8. Loosen the 4 screws. Remove the Motor bracket Photo interrupter Front assy and Photo interrupter. Motor bracket assy Fig. 15 9. Remove the 4 E type washers (A) and 3 washers (B). Mech lock junction lever 10.
Page 49 YPM-MG2196ZF 7.2 IC - Pin Functions (PD5467B) Pin No. Pin Name Function and Operation VDIN VD power supply sensor input DOORSW Door open position sense input COMP IC chip enable Not used CLMPSW Disk clamp sense input ELHOME Elevation reset sense input...
Page 50 YPM-MG2196ZF Pin No. Pin Name Function and Operation VREF A/D converter reference voltage input AVSS A/D converter GND ADRMON DRAM memory remaining monitor input EREF DRAM A/D converter reference voltage input 76,77 PH1,2 Disc photo sense input MAXSW MAX switch input...
Page 51 YPM-MG2196ZF BA5986FM Mute Level shift Level shift Level shift Level shift Stand-by MSM514400DP-60TS...
Page 52 YPM-MG2196ZF CXD2511R XRDE XEMP XQOK XWIH XSOE SDTO SDTI DATA LRCK WDCK WDCI LRCI DATI XRAS BCKI...
Page 53: Explanation
YPM-MG2196ZF 7.3 EXPLANATION 7.3.1 CIRCUIT DESCRIPTIONS EFM comparator EFM-IN FE-BAL 1 Preamplifier (UPC2572GS: IC101) envelope AGC-OUT TE-BAL The preamplifier processes pickup output signals to C AGC Detection generate signals to be sent to the servo, demodulator, and controller. The preamplifier with built-in photode-...
Page 54 YPM-MG2196ZF 2) RF amplifier and RF AGC amplifier 4) DFCT (defect) circuit Photodetector outputs (A+C) and (B+D) are added, amplified and equalized in IC101, and output to the RFI DFCT signal detects mirror defect in discs, and is output terminal as RF signal. (Eye pattern can be checked at from Pin 33.
Page 55 YPM-MG2196ZF 6) Focus-error amplifier REFOUT (+2.5V) The system outputs photodetector output (A+C) and CONDUCTANCE (B+D) as FE signal (A+C)-(B+D) from Pin 28 via the dif- 20kΩ C114 ference amplifier, then via the error amplifier. 10kΩ 390pF 9.3kΩ Low-frequency components of voltage FEY is: 10kΩ...
Page 56 YPM-MG2196ZF 9) MIRR (mirror) circuit UPC2572GS MIRR signal shows ON and OFF track information. The Detection signal is output from Pin 31. (Peak) – (Bottom) The status of MIRR signal is as follows: RFIN Peak Laser beam ON track: MIRR = "L"...
Page 57 YPM-MG2196ZF 2 Servo (UPD63702AGF: IC201) The servo consists of mainly two parts. The first part is the servo processing unit to equalize error signals and control track jump, carriage move, in focus, etc. The second part is the signal processing unit to perform data decoding, error correction, and interpolation.
Page 58 YPM-MG2196ZF When the conditions mentioned above are satisfied and focus is closed, the XSO terminal changes from "H" to REFOUT "L". Then, the microcomputer starts monitoring RFOK signal through L.P.F after 40 ms. LENS POSITION If the system judges RFOK signal as "L", the microcom- RELATIVE TO DISC puter takes actions, including protection.
Page 59 YPM-MG2196ZF 2) Tracking servo system IC 201 UPD63702AGF The main equalizer of tracking servo is located in the IC301 UPD63702AGF. Fig. 11 shows block diagram of the TRACKING BA5986FM ERROR DIGITAL tracking servo. EQUALIZER LENS CONTROL R303 JUMP 10kΩ PARAMETERS R304 27kΩ...
Page 60 YPM-MG2196ZF b) Brake circuit Servo withdrawal will deteriorate during setting and track jump. Thus, the system uses the brake circuit to provide stable withdrawal to servo loop. The brake circuit detects the direction of lens move- ment, and outputs only drive signal in the opposite direction from the lens movement.
Page 61 YPM-MG2196ZF 3) Carriage servo system Output from low-frequency components (lens position information) of the tracking equalizer is input to the car- IC201 UPD63702AGF riage equalizer by the carriage servo. After obtaining a IC301 certain gain, the system outputs drive signal from the...
Page 62 YPM-MG2196ZF 4) Spindle servo system The spindle servo has the following modes: IC 201 UPD63702AGF (1)Kick mode:To be used for accelerating disc rotation IC301 SPEED AND BA5986FM PHASE ERROR SIGNAL during setting. (2)Offset mode: DIGITAL a)To be used after completion of kick until comple...
Page 63 YPM-MG2196ZF 3 Automatic Adjustment Function Constant RF level System With this system, all circuit adjustments are automati- microcomputer cally performed by using the preamplifier (UPC2572GS) Corrected Transfer RF signal voltage of amount and servo LSI (UPD63702AGF). All adjustments are of correction...
Page 64 YPM-MG2196ZF 5) Auto gain control (AGC) 4 Power Supply and Mechanism AGC adjustment is already used in the CD modules of Control the previous generation. This function automatically The power supply VM (7.5V) is produced from the adjusts servo loop gain of focus and tracking.
Page 65 YPM-MG2196ZF 5 STS(Sure Track System) Circuit By pooling the musical data read in from a compact disc into the memory, even if the pickup should go off track for some reason, the Sure Track System enables prevention of sound interruption during recovery (approximately 3 sec- onds) by continuing to output data from the memory.
Page 66: Mechanism Descriptions
YPM-MG2196ZF 7.3.2 MECHANISM OPERATIONS LOAD arms as shown in Fig.21. e)The LOAD arms push the disc loaded on the tray and 1 Disc Insertion open the tray hooks. a)The Cam gear rotates to the elevation OK position f)When a disc is inserted, the disc interrupts the infrared (See "How to remove the Tray Assy"...
Page 67 YPM-MG2196ZF 2 Elevation cal holes in the Main chassis via the rollers. e) When the elevation levers slide, the Stage Mech Assy a)The Cam gear rotates to the elevation OK position. moves up and down. b)The ELV motor rotates to slide the elevation lever via the gears.
Page 68 YPM-MG2196ZF 4 Disc Clamp a)The Stage Mech Assy moves up and down to reach the height of the selected tray, using the elevation mechanism. b)The Cam gear rotates clockwise, the Carriage drive arm rotates, and then the Carriage Mech Assy moves toward the disc via the Carriage drive shaft.
Page 69 YPM-MG2196ZF 7 Mechanism Lock c)With the movement of the Mech lock lever, the Mech lock lever (right) moves in a slanting direction as indi- a)Mechanism lock operation is to push the mechanism cated by the arrow in Fig. 25 to push the mechanism downward and toward the disc slot in order to keep forward and downward.
Page 70 YPM-MG2196ZF 9 Stage Mechanism Lock d)For the left side of the Stage mech assy, in the mode described at the step d) on "3.7 Mechanism lock", the a)To prevent the Stage mech assy from rattling during Mech lock junction lever is driven to move the Stage disc play, which may adversely affect the vibration- lock lever (left).

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