Summary of Contents for Kenwood CD-4900M? DPF-J9030
Page 1
• Refer to CD-2260M/2280M/DPF-J7010/J9010 service manu- al (B51-5416-00), if you require sub microprocessor (IC3: KENWOOD-Crop. certifies this equipment conforms to DHHS X25) in detail. Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J. DANGER : Laser radiation when open and interlock defeated.
Page 2
CD-4900M/DPF-J9030 CONTENTS / ACCESSORIES / CAUTIONS Contents CONTENTS / ACCESSORIES / CAUTIONS..... 2 SCHEMATIC DIAGRAM .......... 13 CIRCUIT DESCRIPTION ..........3 EXPLODED VIEW ............24 ADJUSTMENT ............8 PARTS LIST..............26 PC BOARD ..............9 SPECIFICATIONS ........Back cover Accessories Audio cord ....... (2) System control cord ..(1) Communication cord ..
Page 4
CD-4900M/DPF-J9030 CIRCUIT DESCRIPTION 1-2 Microprocessor pin description (X32, IC8): UPD784217GF502 Pin No. Pin Name Description Address bus of SRAM. No connection. S3-SW Mechanism address detector switch. S2-SW Mechanism address detector switch. SRAM read strobe. SRAM write strobe S1-SW Mechanism address detector switch. ASTB No connection.
Page 5
CD-4900M/DPF-J9030 CIRCUIT DESCRIPTION Pin No. Pin Name Description JOG1 Encoder signal B input. DOOR-SW Door open/close detector switch. LOAD-SW2 Load switch2 for sub pickup. UNLOAD-SW2 Unload switch2 for sub pickup. DISC-SW2 Disc2 sensor. GND. LOADM-2 Load motor(-) for sub pickup. LOADM+2 Load motor(+) for sub pickup.
Page 6
CD-4900M/DPF-J9030 CIRCUIT DESCRIPTION 2. Test mode INPUT KEY PROCEDURE DISPLAY Insert the AC plug to INITIAL CONDITION MECHA. INITIAL the wall outlet with • Disc No.1 moves to the center. INITIAL OK!! pressing the SKIP- • Clear the memory of the SRAM. DOWN key.
Page 7
CD-4900M/DPF-J9030 CIRCUIT DESCRIPTION 3. Error code DISPLAY ERROR CONTENTS MECHA ERROR 01 No input of S3. The original position error of Disc Number. MECHA ERROR 02 No input of S2. The turning direction error to counterclockwise. MECHA ERROR 03 No input of S1. The turning direction error to clockwise. MECHA ERROR 04 No input of main load sw.
CD-4900M/DPF-J9030 ADJUSTMENT INPUT OUTPUT PLAYER ALIGNMENT ITEM ALIGN FOR FIG. SETTING SETTING SETTING POINT 1. With pressing the REPEAT KEY, turn the power on to enter the test mode. 2. Set the Test disc to Disc NO. 1. 3. Close the door. Connect an oscillo- Press the PLAY FE BIAS...
PC BOARD (Component side view) SUB-CIRCUIT UNIT X25-6060-12 Refer to the schematic diagram for the value of resistors and capacitors.
Page 10
PC BOARD (Component side view) CD PLAYER UNIT X32-3502-74 A/8 R180 +7.5V SLT-SW R144 C156 R100 DOUT R141 R101 R140 W139 W140 C102 C101 +5V-SRAM R102 +7.5V SCOR RESET -40V +7.5V W100 W101 W103 STB2 R205 W105 SQSI W112 SQCK W114 W115 W117...
Page 11
PC BOARD(Component side view) CD PLAYER UNIT X32 F/8 OUTPUT SYSTEM SL16 TEXT CONTROL X32-3500-10 B/8 S G D X32 E/8 R202 R197 R195 R176 R199 R174 R198 R196 R177 R137 R200 R173 R178 R138 R201 R175 X32 G/8 X32 H/8 OPTICAL POWER X32 C/8...
Page 13
CAUTION: For continued safety, replace safety critical com- ponents only with manufacturer's recommended parts (refer (X32-3502-74) (A/8) to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall C57 1F5.5 4.9V...
Page 14
X32-A/8 (X25-6060-12) DIGITAL LINE -CN11 SIGNAL LINE IC1 : CXA1571M GND LINE IC2 : CXD2587Q B LINE IC3 : uPD780023GC512 (X25-6060-12) B LINE IC4 : TA8409S 10 9 9 10 11 IC5 : BA5979S : 2SA954(L,K) X32-A/8 LOADING -CN15 MOTOR D1,2 : HSS104 or DRIVER 1SS133...
Page 15
(X25-6060-12) (X32- ) (F/8) +7.5V SWITCHING POWER SUPPLY 7.6V 100uH 18.2V +7.5V 17.8V CAUTION: For continued safety, replace safety critical com- ponents only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For 4.9V continued protection against risk of fire, replace only with CN12 6.8V R53 47K...
Page 17
(X32- ) (C/8) IC14,15 : uPD780204-038 Q5,6 : 2SC3246(J,K) D13-15 : B30-2493-05 (WIRE CLAMPER) D16-19,36,37 : B30-2532-05 CAUTION: For continued safety, replace safety criti- cal components only with manufacturer's recommend- ed parts (refer to parts list). indicates safety critical components. For continued protection against risk of fire, replace only with same type and rating fuse(s).
CD-4900M/DPF-J9030 EXPLODED VIEW (MECHANISM) 2x25 : N39-2025-46 Parts with exploded numbers larger than 700 are not supplied.
Page 19
The left screen parts and the right are one and the same if no ref number. 2.6x8 : N09-2769-05 M2x4 : N83-2004-45 3x6(BLK) : N09-1445-05 Push rivet : N29-0035-05 2.6x8 : N82-2608-46 M2x2.5 : N39-2025-46 857A : N30-3003-46 : N89-3006-46 M3x3 3x8(BLK) E-RING...
Page 20
New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
Page 21
New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
Page 22
New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
Page 23
New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
Page 24
New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Add- Desti- Ref. No Description Parts No. Parts nation marks ress J21-6571-08 PLATE SLIDER A J21-6575-08 PLATE SUPPORT B...