Tech Line VD-170 Service Manual

Dvd player & video cassette recorder

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SERVICE MANUAL

Main Section

I Specifications

I Preparation for Servicing

I Adjustment Procedures

I Schematic Diagrams

I CBA's

I Exploded views

I Parts List

VIDEO CASSETTE RECORDER

DVD PLAYER &

VD-170

When servicing the deck

mechanism, refer to MK14 Deck

Mechanism Section.

Deck Mechanism Part No.:

N25C0FL

PAL

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Summary of Contents for Tech Line VD-170

Page 1 When servicing the deck I Specifications mechanism, refer to MK14 Deck I Preparation for Servicing Mechanism Section. I Adjustment Procedures I Schematic Diagrams Deck Mechanism Part No.: I CBA’s I Exploded views N25C0FL I Parts List DVD PLAYER & VIDEO CASSETTE RECORDER VD-170...
Page 2: Table Of Contents
MAIN SECTION DVD PLAYER & VIDEO CASSETTE RECORDER VD-170 Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ............... . . 1-1-1 Laser Beam Safety Precautions .
Page 3: Specifications
SPECIFICATIONS < VCR Section > Description Unit Minimum Nominal Maximum Remark 1. Video 1-1. Video Output (PB) Vp-p SP Mode 1-2. Video Output (R/P) Vp-p SP Mode, 1-3. Video S/N Y (R/P) W/O Burst 1-4. Video Color S/N AM (R/P) SP Mode 1-5.
Page 4 < DVD Section > ITEM CONDITIONS UNIT NOMINAL LIMIT 75 Ω load 1. Video Output ± 0.1 2. Optical Digital Out 3. Audio (PCM) 1 kHz 0 dB, 47k Ω load 3-1. Output Level Vrms 47k Ω load 3-2. S/N 3-3.
Page 5: Laser Beam Safety Precautions
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 30 cm away from the pickup lens when the diode is turned on.
Page 6: Important Safety Precautions
IMPORTANT SAFETY PRECAUTIONS Product Safety Notice K. Crimp type wire connector The power transformer uses crimp type connectors Some electrical and mechanical parts have special which connect the power cord and the primary side safety-related characteristics which are often not evi- of the transformer.
Page 7: Safety Check After Servicing
Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, Chassis or Secondary Conductor parts, and wires have been returned to their original positions. Afterwards, do the following tests and con- Primary Circuit Terminals firm the specified values to verify compliance with safety standards.
Page 8: Standard Notes For Servicing
STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder When soldering, be sure to use the Pb free solder. 1. The output pin of the 3 pin Regulator ICs is indi- cated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View 1.
Page 9 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each (1) Using desoldering braid, remove the solder from all pin or the solder lands under the IC when removing pins of the flat pack-IC.
Page 10 2. Installation (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from soldering iron to center of the flat pack-IC and heat the foil of each pin of the flat pack-IC on the CBA up.
Page 11 Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1MΩ) that is prop- erly grounded to remove any static electricity that may be charged on the body.
Page 12: Preparation For Servicing
PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the PLAY button.
Page 13: Cabinet Disassembly Instructions
CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart REMOVAL This flowchart indicates the disassembly steps to gain REMOVE/*UNHOOK/ LOC. PART Fig. access to item(s) to be serviced. When reassembling, UNLOCK/RELEASE/ Note follow the steps in reverse order. Bend, route, and UNPLUG/DESOLDER dress the cables as they were originally. [1] Top Case DVD Main 2(S-7), *CN201,...
Page 14 Reference Notes CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. Be careful not to break them. (S-1) (S-1) 1-1. Release three Locking Tabs (L-1). [1] Top Case 1-2. Release three Locking Tabs (L-2), then remove the Front Assembly. CAUTION 2: Electrostatic breakdown of the laser (S-1) diode in the optical system block may occur as a potential difference caused by electrostatic charge...
Page 15 CN401 (S-3) CN601 (S-9) (S-8) (S-3) (S-8) [4] DVD Mechanism (S-9) Assembly (S-3) (S-4) [5] Partition Plate (S-8) (S-10) (S-5) (S-6) CN501 (S-10) [9] VCR Chassis Unit [7] Loader Holder [6] Power Supply CBA (L-3) Fig. D5 Fig. D3 (S-7) (S-7) [8] DVD Main CBA Unit...
Page 16 Cylinder Assembly FE Head ACE Head Assembly [10] Deck Assembly SW507 Lead with blue stripe Lead with blue stripe LD-SW Desolder [14] Jack-A CBA (S-11) (S-13) [13] Main CBA [10] Deck Assembly [12] Power SW CBA Cam Gear [13] Main CBA Desolder (S-11) Hole...
Page 17 HOW TO EJECT MANUALLY 1. Remove the Top Case, Front Assembly and Top Bracket. 2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors. 3. While lifting up the DVD Mechanism, rotate the roulette in the direction of the arrow as shown below.
Page 18: Electrical Adjustment Instructions
ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is an abbreviation for "Circuit Board Assembly." NOTE: Figure 1 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after all repairs and replacements have been com- EXT.
Page 19: How To Initialize The Dvd Player & Vcr
HOW TO INITIALIZE THE DVD PLAYER & VCR To put the program back at the factory-default, initialize the DVD player & VCR as the following procedure. < DVD Section > 1. Press [DVD], [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. Fig.
Page 20: Firmware Renewal Mode
FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. " ******* " differ depending on the models. 2. To put the DVD player into version up mode, press [DVD], [9], [8], [7], [6], and [SEARCH MODE] F/W Version Up Mode Model No : ******* buttons on the remote control unit in that order.
Page 21: Function Indicator Symbols
FUNCTION INDICATOR SYMBOLS Note: If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by pressing [FUNCTION] button, an error message is displayed on the TV screen for 5 seconds. MODE INDICATOR ACTIVE When reel or capstan mechanism is not “A R”...
Page 22: Block Diagrams
BLOCK DIAGRAMS <VCR SECTION> Servo / System Control Block Diagram 1-11-1 H9979BLS...
Page 23 Video Block Diagram 1-11-2 H9979BLV...
Page 24 Audio Block Diagram 1-11-3 H9979BLA...
Page 25 Power Supply Block Diagram 1-11-4 H9979BLP...
Page 26 BLOCK DIAGRAMS <DVD SECTION> DVD System Control / Servo Block Diagram H9979BLSD 1-11-5...
Page 27 Digital Signal Process Block Diagram H9979BLD 1-11-6...
Page 28 DVD Video / Audio Block Diagram 1-11-7 H9979BLVD...
Page 29: Schematic Diagrams / Cba's And Test Points
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
Page 30 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. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defec- tive before you connect the AC plug to the AC power supply.
Page 31 Main 1/7 Schematic Diagram < VCR Section > 1-12-3 H9979SCM1...
Page 32 Main 2/7 , Sensor & Power SW Schematic Diagram < VCR Section > 1-12-4 H9979SCM2...
Page 33 Main 3/7 Schematic Diagram < VCR Section > 1-12-5 H9979SCM3...
Page 34 Main 4/7 Schematic Diagram < VCR Section > 1-12-6 H9979SCM4...
Page 35 Main 5/7 Schematic Diagram < VCR Section > 1-12-7 H9979SCM5...
Page 36 Main 6/7 Schematic Diagram < VCR Section > 1-12-8 H9979SCM6...
Page 37 Main 7/7 & DVD Open/Close Schematic Diagram < VCR Section > 1-12-9 H9979SCM7...
Page 38 Power Supply & Junction Schematic Diagram < VCR Section > CAUTION ! NOTE: CAUTION ! For continued protection against fire hazard, The voltage for parts in hot circuit is measured using Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. replace only with the same type fuse.
Page 39 Jack - A Schematic Diagram < VCR Section > H9979SCJ 1-12-11...
Page 40 DVD Main 1/3 Schematic Diagram < DVD Section > 1 NOTE: Either IC461 or IC462 is used for DVD MAIN CBA UNIT. 1-12-12 H9979SCD1...
Page 41 DVD Main 2/3 Schematic Diagram < DVD Section > 1-12-13 H9979SCD2...
Page 42 IC101 Voltage Chart ~ : Voltage is not consistent ----- : Not used Unit : Volts PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- -----...
Page 43 DVD Main 3/3 Schematic Diagram < DVD Section > 1-12-15 H9979SCD3...
Page 44 Main CBA Top View Sensor CBA Top View BHF300F01011A TP751 TP301 BHF300F01011B V-OUT C-PB VR501 SW-P TP504 RF-SW TP501 S-INH TP503 1-12-16 BH9900F01013A...
Page 45 Main CBA Bottom View PIN 6 OF IC1403 PIN 18 OF CN1601 PIN 15 OF CN1601 PIN 13 OF CN1601 PIN 10 OF CN1601 PIN 8 OF CN1601 1-12-17 BH9900F01013A...
Page 46 DVD Open/Close DVD Open /Close Power SW CBA Top View Power SW CBA Bottom View CBA Top View CBA Bottom View BH9900F01013B BH9900F01013C Jack -A CBA Bottom View Jack -A CBA Top View BH9900F01022C 1-12-18...
Page 47 Power Supply CBA Top View Power Supply CBA Bottom View CAUTION ! Because a hot chassis ground is present in the power CAUTION ! supply circut, an isolation transformer must be used. For continued protection against fire hazard, Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. replace only with the same type fuse.
Page 48: Waveforms
WAVEFORMS NOTE: Input VCR: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) (WF1~WF3) DVD: POWER ON (STOP) MODE (WF4~WF6) CD: 1kHz PLAY (WF7~WF9) TP301 UPPER TP504 Pin 8 of CN1601 Pin 13 of CN1601 LOWER C-PB AUDIO-L 0.5ms RF-SW 0.2V VIDEO-Y 0.2V 20µs TP751...
Page 49: Wiring Diagram < Vcr Section
WIRING DIAGRAM < VCR SECTION > 1-14-1 H9979WI...
Page 50: Wiring Diagram < Dvd Section
WIRING DIAGRAM < DVD SECTION > 1-14-2 H9979WID...
Page 51: Ic Pin Function Descriptions
IC PIN FUNCTION DESCRIPTIONS IC501( SERVO / SYSTEM CONTROL IC ) Signal Active Function Name Level “H” ≥ 4.5V, “L” ≤ 1.0V Recording LED 26 OUT REC-LED Signal Active Function Control Signal Name Level Not Used Input Signal from SC2-IN Pin 8 of SCART2 Not Used Video Head...
Page 52 Signal Active Signal Active Function Function Name Level Name Level Not Used Not Used Not Used Not Used Composite Not Used PULSE C-SYNC Synchronized Capstan Motor Pulse PULSE C-FG Rotation Detection Control SCART 1 Pulse 8Pin Level by 59 OUT 8POUT-1 Not Used using 8POUT-1 and 8POUT-2...
Page 53: Lead Identifications
LEAD IDENTIFICATIONS 2SA1015-GR(TPE2) 2SC3266-Y(TPE2 F) 2SA1175(F,H,J) 2SA1015-GR(TE2 F T) 2SC3266-Y(TPE2) 2SC2785(F,H,J) 2SC1815-BL(TPE2) 2SA1020-Y(TE6 F M) BA1F4M-T 2SC1815-GR(TPE2) 2SA1020(Y) BN1F4M-T 2SC1815-BL(TE2 F T) KTA1281(Y) BN1L4M-T 2SC1815-GR(TE2 F T) KTA1281Y-AT/P KRA103M-AT/P 2SC1815-Y(TE2 F T) KTC3203(Y) KRC103M 2SC1815-Y(TPE2) KTC3203-Y-AT/P KRC103M-AT/P 2SC2120-Y(TPE2) KTC3205(Y) KRC103S-RTK/P 2SC2120-Y(TE2 F T) KTC3205-Y-AT/P KTA1266(GR)
Page 54: Exploded Views
EXPLODED VIEWS Cabinet 2L071 2L071 2B21 2L071 See Electrical Parts List 2L012 for parts with this mark. 2L021 2L021 2L071 Some Ref. Numbers are 2L021 not in sequence. L0-9 L0-9 2L082 2L020 Jack-A CBA 2L021 JW003 Sensor CBA DVD Main CBA Unit 2B11 Main CBA...
Page 55 Packing X20A X20B Some Ref. Numbers are not in sequence. Unit 1-17-2 H9979PEX...
Page 56: Mechanical Parts List
MECHANICAL 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.
Page 57: Electrical Parts List
ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Description Part No. ! have special characteristics important to safety. C124 ELECTROLYTIC CAP . 470µF/6.3V M or CE0KMASDL471 Before replacing any of these components, read ELECTROLYTIC CAP . 470µF/6.3V M CE0KMASTL471 carefully the product safety notice in this service C125...
Page 58 Ref. No. Description Part No. Ref. No. Description Part No. C312 ELECTROLYTIC CAP . 10µF/16V M H7 CE1CMAVSL100 C410 ELECTROLYTIC CAP . 10µF/16V M H7 CE1CMAVSL100 C313 ELECTROLYTIC CAP . 1µF/50V M H7 CE1JMASSL1R0 C411 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V CHD1JK30B103 C314 CHIP CERAMIC CAP .(1608) B K 0.01µF/50V...
Page 59 Ref. No. Description Part No. Ref. No. Description Part No. C540 CHIP CERAMIC CAP .(1608) B K 4700pF/50V CHD1JK30B472 CHIP CERAMIC CAP . CG J 47pF/50V CHD1JJ3CG470 C541 CHIP CERAMIC CAP . CH J 18pF/50V or CHD1JJ3CH180 C1221 ELECTROLYTIC CAP . 10µF/16V M or CE1CMASDL100 CHIP CERAMIC CAP .
Page 60 Ref. No. Description Part No. Ref. No. Description Part No. ZENER DIODE MTZJT-7711A QDTA00MTZJ11 IC ANALOG MULTIPLEXER CD4053BNSR or NSZBA0TTY093 D108 ZENER DIODE DZ-11BSAT265 or NDTA00DZ11BS IC ANALOG MULTIPLEXERS CD4053BCSJX or NSZBA0TF3071 ZENER DIODE MTZJT-7711A QDTA00MTZJ11 IC SWITCH TC4053BF(N) QSMBA0STS002 D109 ZENER DIODE DZ-11BSAT265 or NDTA00DZ11BS...
Page 61 Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR KTA1266(GR) or NQS40KTA1266 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 TRANSISTOR 2SA1015-GR(TPE2) QQS102SA1015 Q508 TRANSISTOR KTC3199-Y-AT/P or NQSYKTC3199P Q107 TRANSISTOR KTC3199-Y -AT/P or NQSYKTC3199P TRANSISTOR KTC3199-GR-AT/P or NQS4KTC3199P TRANSISTOR KTC3199-GR-AT/P or NQS4KTC3199P TRANSISTOR 2SC1815-Y(TE2 F T) or QQSY2SC1815F TRANSISTOR 2SC1815-Y(TE2 F T) or QQSY2SC1815F...
Page 62 Ref. No. Description Part No. Ref. No. Description Part No. TRANSISTOR 2SA1175(H) or QQSH02SA1175 TRANSISTOR KTC3199(Y) or NQSY0KTC3199 TRANSISTOR 2SA1175(F) or QQSF02SA1175 TRANSISTOR KTC3199(GR) or NQS10KTC3199 TRANSISTOR KTA1267(Y) or NQSY0KTA1267 TRANSISTOR 2SC1815-Y(TPE2) or QQSY02SC1815 TRANSISTOR KTA1267(GR) NQS10KTA1267 TRANSISTOR 2SC1815-GR(TPE2) QQS102SC1815 Q1054 TRANSISTOR KTC3199-Y -AT/P or NQSYKTC3199P...
Page 63 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 39k Ω CARBON RES. 1/4W G 10k Ω R251 RRXAJR5Z0393 RCX4GATZ0103 CHIP RES.(1608) 1/10W J 1.8k Ω CARBON RES. 1/6W G 470 Ω or R252 RRXAJR5Z0182 R516 RCX6GATZ0471 CHIP RES.(1608) 1/10W J 1.2k Ω...
Page 64 Ref. No. Description Part No. Ref. No. Description Part No. CHIP RES.(1608) 1/10W J 1.5k Ω CHIP RES. 1/10W F 160 Ω R604 RRXAJR5Z0152 RRXAFR5Z1600 CHIP RES.(1608) 1/10W J 2.2k Ω CARBON RES. 1/4W J 75 Ω R605 RRXAJR5Z0222 R1422 RCX4JATZ0750 CARBON RES.
Page 65 Ref. No. Description Part No. Ref. No. Description Part No. 2B11 NEW SHIELD ASSEMBLY H9700ED 1VM420438 Q504 PHOTO TRANSISTOR PT204-6B-12 or NPWZT2046B12 2B15 BUSH LED(F) H3700UD 0VM409508 PHOTO TRANSISTOR MID-32A22F NPWZ1D32A22F 2B46 ROHM HOLDER H7770JD 0VM304573 PSV CBA 2L062 SCREW B-TIGHT M3X8 BIND HEAD + GBKB3080 2L082 SCREW B-TIGHT M3X8 BIND HEAD +...
Page 66 Ref. No. Description Part No. Ref. No. Description Part No. D018 RECTIFIER DIODE BA158 or NDQZ000BA158 CHOKE COIL 47µH-K or LLBD00PKV005 RECTIFIER DIODE BA158 NDWZ000BA158 CHOKE COIL 47µH-K or LLBD00PKT001 D019 RECTIFIER DIODE FR203-B/P NDQZ000FR203 FIXED INDUCTORS LGB0810T-470K LLBD00PU6007 D1001 RECTIFIER DIODE 1N4005 or NDQZ001N4005 L1012...
Page 67 Ref. No. Description Part No. Ref. No. Description Part No. CARBON RES. 1/4W J 10k Ω CARBON RES. 1/4W J 820 Ω RCX4JATZ0103 R114 RCX4JATZ0821 CARBON RES. 1/6W J 100k Ω or CARBON RES. 1/4W J 820 Ω R1038 RCX6JATZ0104 R115 RCX4JATZ0821 CARBON RES.
Page 68 VD-170 H9979ED 2005-07-15...