For U.S.A & Canada model SERVICE MANUAL MODEL DVM-1805 DVD VIDEO AUTO CHANGER Some illustrations using in this service manual are slightly different from the actual set.
TABLE OF CONTENTS SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 STANDARD NOTES FOR SERVICING . . . . . . . . .
SPECIFICATIONS ITEM 1. Video Output CONDITIONS 75 ohm load 2. Optical Digital Out UNIT NOMINAL Vpp 1.0 dBm -18 Vrms 2.0 dB 110 3. Audio (PCM) 3-1. Output Level 1kHz 0dB 3-2. S/N 3-3. Freq. Response DVD fs=48kHz 20~22kHz dB ±2 CD fs=44.1kHz 20~20 kHz dB ±2 1 kHz 0dB % 0.005 3-4. THD+N NOTES: 1. All Items are measured without pre-emphasis unless otherwise specified. 2. Power supply : AC120 V 60 Hz 3. Load imp. : 100 K ohm 4.
LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser beam.
IMPORTANT SAFETY PRECAUTIONS Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder droplets, etc.) do not remain inside the set. Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc.
Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards. Chassis or Secondary Conductor Primary Circuit Terminals d' 1.
STANDARD NOTES FOR SERVICING Circuit Board Indications How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indicated as shown. 1. Removal Top View Out With Hot-Air Flat Pack-IC Desoldering Machine:. (1) Prepare the hot-air flat pack-IC desoldering machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1) Bottom View In Input b. For other ICs, pin 1 and every fifth pin are indicated as shown. 5 Pin 1 Fig.
(4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) With Soldering Iron: (1) Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3) Flat Pack-IC (5) Release the flat pack-IC from the CBA using tweezers. (Fig.
Instructions for Handling Semi-conductors 2. Installation (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily. Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. (2) The “I” mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart ID/ LOC. No. This flowchart indicates the disassembly steps to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.
*=Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2) (5): Refer to “Reference Notes.” (L-1) (S-2) (B) Reference Notes (L-1) CAUTION 1: Locking Tabs (L-1) are fragile. Be careful not to break them. (S-2) 1-1. To release eight Locking Tabs (L-1), first release five Locking Tabs (A), and then three Locking Tabs (B). (Fig.
A B Drive Mecha Assembly CN5101 CN5002 Short the three short lands by soldering [8] Sensor CBA (S-5) CN5005 [7] Relay CBA (S-4) Fig. D6 [10] TrayGuide (L) (S-7) View for A OR (S-7) (S-8) (S-8) Short the three short lands by soldering Slide CN2103 C Pickup Unit View for B (S-6) View for C CN3004 [9] Power SW CBA [11] TrayGuide (R)Unit Fig. D5 - 12 - CN3006 Fig.
[14] Slide Tray Gear (A) (S-9) (S-15) [16] Switch CBA [20] PRO PCB(A) Shield (P-1) Belt L (S-15) (S-10) CN1801 [21] Progressive CBA Unit (S-16) [12] Loading Pulley (S-11) [22] Shield Assembly [17] Tray Guide (R) (S-16) (L-4) [13] Slide Tray Gear (B) [15] Motor Assembly [23] DVD Main CBA Unit Fig. D8 (S-12) [18] Power Supply CBA (S-13) [19] Changer CBA (S-13) CN2100 (S-13) CN1601 CN1602 CN1001 CN3001 (S-14) Fig. D10 (S-14) (S-17) [24] Rear Panel Fig. D9 Fig.
TROUBLESHOOTING FLOW CHART NO.1 The power cannot be turned on.(1) No Is the fuse normal? Yes Is normal state restored when once unplugged No power cord is plugged again after several seconds? Yes Is the EV 5V line voltage normal? Yes Is the voltage of secondary side normal? No No See FLOW CHART No.3
FLOW CHART NO.4 When the output voltage fluctuates. Does the photo coupler circuit on the secondary side operate normally? Yes Does the photo coupler circuit on the primary side operate normally? No Check the circuit and replace the parts. (IC1001, IC1006, D1048, D1015) No Check the circuit and replace the parts. (IC1001, D1012, D1024) FLOW CHART NO.5 When buzz sound can be heard in the vicinity of the power circuit.
FLOW CHART NO.8 No operation is possible from the remote control unit. Operation is possible from the DVD, but no operation is possible from the remote control unit.
FLOW CHART NO.13 PON 1.8V is not outputted. Is 2.5V voltage supplied at pin(1) of IC1002? Yes Is the "H" pulse inputted into pin(4) of IC1002? Yes Replace IC1002. No No Check D1013, C1014 and the periphery circuit. Check PWRCON line. FLOW CHART NO.14 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Is 0V voltage supplied to Pin(17) of IC2001 when the OPEN/CLOSE button is activated on the DVD? No Check the SW2212 and OPEN/CLOSE button. Yes See FLOW CHART NO.
FLOW CHART NO.17 [No Disc] is indicated. (When the focus servo is not functioning.) Replace the DVD Main CBA Unit. No improvement can be found. Yes No The malfunction of the original DVD Main CBA Unit. Replace the DVD Mecha. FLOW CHART NO.18 [No Disc] is indicated. (When the laser beam does not light up.) Replace the DVD Main CBA Unit. No improvement can be found. Yes No The malfunction of the original DVD Main CBA Unit. Replace the DVD Mecha. FLOW CHART NO.
FLOW CHART NO.20 Picture does not appear normally in interlace mode. Set the disc on the disc tray and playback. Are the video signals outputted to each pin of CN1601 on the the Changer CBA? CN1601 CN1601 CN1601 CN1601 CN1601 7PIN 5PIN 9PIN 3PIN 1PIN No Replace the DVD Main CBA Unit or DVD Mecha .
FLOW CHART NO.21 Component video signals are not outputted normally in progressive mode. Set the disc on the disc tray and playback.
FLOW CHART NO.22 Audio is not outputted. Set the disc on the disc tray and playback. Are the analog audio signals outputted to each pin of CN1601 on the Changer CBA? No Replace the DVD Main CBA Unit or DVD Mecha. CN1601 13PIN AUDIO-L CN1601 15PIN AUDIO-R Yes Are the analog audio signals inputted to each pin of IC1201. No IC1201 2PIN AUDIO-L IC1201 6PIN AUDIO-R Check each line between each pin of CN1601 and each pin of IC1201 on the Changer CBA.
BLOCK DIAGRAMS DVD System Control Block Diagram IC301 (FRONT END PROCESSOR) 42 41 59 60 70 72 10 46 47 TFWD TREV TIN TOUT SCK STDIO SEN MUTE PS 200 201 187 188 TFWD TREV TIN TOUT IC605 +3.
Changer System Control Block Diagram FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL PICK-UP UNIT CHANGER CBA FROM RF SIGNAL PROCESS /SERVO BLOCK DIAGRAM CN401 CN3001 1 2 3 4 6 7 8 9 IC301 (FRONT END PROCESSOR) 80 55 69 56 57 58 67 78 CN3004 1 TRAY-IN 2 GND 3 TRAY-OUT CN3101 1 2 3 SW3101 TRAY CLOSE FROM RF SIGNAL PROCESS /SERVO BLOCK DIAGRAM CN101 SW3102 TRAY OPEN A B C D F E CD/DVD CD-LD DVD-LD PD-MONI GND(DVD-PD) GND(LD) GND(CD-PD) CN5004 20 12 11 14 13 19 CN5005 20 12 11 14 13 19 CD-LD DVD-LD
RF Signal Process/Servo Block Diagram DATA(VIDEO/AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL IC101 (RF SIGNAL PROCESS) A B C D F E CD-DVD 47 57 58 59 60 62 63 DISK SERVO SIGNAL DVD MAIN CBA UNIT 41 46 HOLD CN101 6 9 10 7 4 5 21 SLIDE SERVO SIGNAL VGA BDO DET VEL ADJ ARF NARF 31 30 40 EQ INPUT MATRIX TESTSG FROM/TO DVD SIGNAL PROCESS BLOCK DIAGRAM OFTR DET 39 MIRROR DET TRACKING BALANCE TRACKING ERROR DET 18 6 FOCUS ERROR DET FOCUS BALANCE FROM/TO CHANGER SYSTEM CONTROL BLO
DVD Signal Process Block Diagram DATA(VIDEO/AUDIO) SIGNAL DVD MAIN CBA UNIT IC201 (DVD SIGNAL PROCESS) PLL VCO FROM/TO RF SIGNAL PROCESS/SERVO BLOCK DIAGRAM ARF NARF DATA SLICER 111 110 TESTSG 82 DVD DEMODULATOR VIDEO/AUDIO INTERFACE BCA MEMORY MANAGER ~ ADDRESS BUS 22 17 CPUADR0 ~ ~ 30 CPUADR17 9 FROM/TO DVD SYSTEM CONTROL BLOCK DIAGRAM ~ ~ 44 CPUDT0 DATA BUS 37 CPUDT7 2 NINT1 5 NINT2 6 WAIT 36 /RE 35 /WEL 34 CS1 47 RESET NINT1 NINT2 WAIT /RE /WEL CS1 RESET CPU INTERFACE X201 (
Video Block Diagram DATA(VIDEO) SIGNAL DATA(AUDIO) SIGNAL VIDEO SIGNAL DATA(VIDEO/AUDIO) SIGNAL IC601 (DVD HOST PROCESSOR) ~ 4dB AMP LPF 2dB AMP DRIVER 24 4dB AMP LPF 2dB AMP DRIVER 33 4 4dB AMP LPF 2dB AMP DRIVER 30 CAS RAS DQML DQMU WE CS 14 4dB AMP LPF 2dB AMP DRIVER 21 VIDEO-U OUT 84 ~ 93 97 ~ 102 77 76 79 80 78 74 16 4dB AMP LPF 2dB AMP DRIVER 18 VIDEO-V OUT ~ ~ SDRAM ARBITER VIDEO DECODER VIDEO FILTERING 32 33 OSD, SP DECODER & MIXING DQ15 DQ0 AD13 AD0
Progressive Block Diagram DATA(VIDEO) SIGNAL IC1803 (PROGRESSIVE ENCODER) 20 ~ FORMATTER DE-INTERLACER FORMATTER 93 94 97 40 3 4 ~ 27 PLL/CLOCK GENE 104 11 42 TEST PATT.GENE.
Audio Block Diagram DATA(AUDIO) SIGNAL AUDIO SIGNAL IC1204 FIBER OPTIC TRANS MODULE WF6 CN701 18 SPDIF CN1601 18 JK1201 Q1351 AMP DIGITAL AUDIO OUT IC801 (AUDIO DAC) IC1201 (AMP) WF4 SPDIF PCM-BCK PCM-DATA0 PCM-LRCLK 1 2 3 SERIAL PORT 4X/8X OVERSAMPLING DIGITAL FILTER /FUNCTION CONTROLLER ENPHANCED MULTI-LEVEL DELTA-SIGMA MODULATOR DAC LPF+AMP DAC LPF+AMP L-CH R-CH 7 8 CN701 13 15 12 14 16 AUDIO-L AUDIO-R A-L-MUTE A-R-MUTE A-MUTE CN1601 13 15 12 14 16 WF5 3 2 1 AUDIO-L OUT 6 5
Power Supply Block Diagram CAUTION ! Switching power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. F A V CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: WARNING 1. Do not use the part number shown on these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared. Many electrical and mechanical parts in this chassis have special characteristics.
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE. RISK OF FIRE-REPLACE FUSE AS MARKED. F A V This symbol means fast operating fuse. Ce symbole represente un fusible a fusion rapide. 2.
WAVEFORMS WF1 Pin 5 of CN1601 Pin 15 of CN1601 WF5 NOTE: Input CD: 1kHz PLAY (WF4~WF6) DVD: POWER ON (STOP) MODE (WF1~WF3) VIDEO-Y WF2 0.2V Pin 7 of CN1601 VIDEO-CVBS 0.5V WF3 AUDIO-R WF6 20usec 1V 0.5msec Pin 18 of CN1601 SPDIF 1V 0.2usec Pin 9 of CN1601 VIDEO-C WF4 20usec 0.2V 20usec Pin 13 of CN1601 AUDIO-L 1V 0.
WIRING DIAGRAM VIDEO-Y VIDEO-U VIDEO-V OUT OUT OUT S-VIDEO OUT AUDIO OUT(L) VIDEO OUT AUDIO OUT(R) OPTICAL AUDIO OUT DIGITAL AUDIO OUT CN1001 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 CHANGER CBA 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 W3005 LM(+) LM(-) TRAY-IN TRAY-OUT NU SP(-) SP(+) SL(-) SL(+) FG-IN NU ROT(+) ROT(-) CHK-ON CHK-OFF D-SENS R-GAIN RT-SENS W3006 P-ON+1.8V P-ON+1.8V EV+2.5V EV+2.
FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. 2. To put the DVD player into version up mode, press [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control unit in that order. The tray will open automatically. Fig. a appears on the screen and Fig. b appears on the VFD. Fig. d VFD in Programming Mode (Example) The appearance shown in (*2) of Fig. c is described as follows: No. BE F/W VERSION UP MODE PLEASE INSERT A DISC FOR BE F/W VERSION UP.
8. Disconnect and connect the AC Plug to the AC Outlet again during opening the Tray. 9. The Tray closes when the POWER Button (*1) is pressed to turn on the Power of the unit. (*1: The operation differs depending on models.) After the above, a series of the Back-End F/W updating procedures completes. The following indication appears when the buttons on the remote control are pressed in the following order. Buttons: 1 Æ 2 Æ 3 Æ 4 Æ DISPLAY The Version to be confirmed.
LEAD IDENTIFICATIONS E C B 2SK3374 2SC2785 (H) KTC3199 (GR) KRA110M KRC110M-AT BA1L3Z-T BN1L3Z (P) 2SA1015-Y (TPE2) KTA1266 (Y) DTC114ESA TP 2SC2120-Y(TPE2) KTC3203(Y) 2SC2236-Y-TPE6,C KTC3205 (Y) G D S E C B PT204-6B-12 PT6315-S PT6315-S(-TP) 15 28 2SA1359-Y PQ018EF01SZ KIA431-AT C E 8 1 5 BA6956AN E C B 4 1 1 7 R A K 4 0C-0805T-002 GP1FA512TZV MM1567AJ 34 1 2 3 14 1 NJM4558D KIA4558P 1 LTV-817B-F LTV-817C-F 18 A C K E 17 - 36 - Note: A: Anode K: Cathode E: Emitter C:
Progressive Schematic Diagram - 37 -
DVD Main 1/4 Schematic Diagram - 38 -
DVD Main 2/4 Schematic Diagram - 39 -
DVD Main 3/4 Schematic Diagram - 40 -
DVD Main 4/4 Schematic Diagram - 41 -
Power Supply Schematic Diagram CAUTION ! Fixed voltage power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. F A V CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
Changer 1/3 Schematic Diagram - 43 -
Changer 2/3 Schematic Diagram - 44 -
Changer 3/3 Schematic Diagram FL2001 MATRIX CHART 7G STANDBY REPEAT A-B 6G 5G TITLE 4G 3G 2G 1G CHP. TRK.
Relay Schematic Diagram - 46 -
EXPLODED VIEWS Cabinet View 1 See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence.
Cabinet View 2 B1-30 B1-30 B1-2 B1-26 L1-6 B1-46 B1-41 B1-24 B1-22 B1-24 B1-43 B1-42 B1-20 B1-3 B1-19 B1-5 D-3 SW-403 B1-21 B1-11 B1-45 L1-5 B1-6 B1-13 B1-36 B1-7 B1-37 L1-11 B1-8 L1-23 L1-26 L1-25 B1-9 B1-4 B1-38 L1-6 B1-12 See Electrical Parts List for parts with this mark. Some Ref. Numbers are not in sequence.
Packing X21 X20 X26 X22 X10 X5 X2 S3 S2 X1 X4 S4 S3 Unit S2 A22 A30 S1 A30 - 49 -
PARTS LIST PRODUCT SAFETY NOTE: Products marked with a # have special characteristics important to safety. Before replacing any of these components, read carefully the product safety notice in this service manual. Don't degrade the safety of the product through improper servicing. NOTE: Parts that are not assigned part numbers (---------) are not available. Ref. No. Mark Description A1X FRONT ASSEMBLY A2 TRAY PANEL ASSEMBLY A3 FOOT A15 CHASSIS A16 TOP COVER A17 REAR PANEL A21 LABEL, SERIAL NO.
Ref. No. Mark Description X4 I/B BAG X5 AV CORD LP-970124 X5 AV CORD TSCKA-Y/RW100 X5 AV CORD RCA(M*2)TO RCA(M*2) X10! OWNER'S MANUAL X20 ENVELOPE X21 WARRANTY SHEET X22 SERVICE CENTER SHEET X26 POST CARD Parts No. 0DM400757 WPZ0102LG008 WPZ0102TM015 WPZ0102LTE01 0VMN03241 0VM413953 0VM305665 0VM413951A 0VM413954 (DE) Part No.
