FUNAI HD-A2685 Service Manual
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FUNAI HD-A2685 Service Manual

Hdd & dvd recorder
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SERVICE MANUAL
HDD & DVD RECORDER
HD-A2685/HD-A2885/
HD-B2785/HD-D2885

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Summary of Contents for FUNAI HD-A2685

  • Page 1 SERVICE MANUAL HDD & DVD RECORDER HD-A2685/HD-A2885/ HD-B2785/HD-D2885...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions .

  • Page 3: Specifications

    Sampling frequency 13.5MHz Compression format MPEG Audio recording format Sampling frequency 48kHz Compression format Dolby Digital Tuner Receivable channels E21-E69 (HD-A2685/HD-A2885/HD-B2785) IRA-E69 (HD-D2885) Input/Output Video input AV3 (front) Input level 1 Vp-p (75Ω) Jacks RCA jack S-Video input AV3 (front) Y (Iuminance) - Input level 1 Vp-p (75Ω)

  • Page 4: 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 5: 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 6 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 firm the specified values to verify compliance with safety standards.

  • Page 7: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is When soldering, be sure to use the Pb free solder. indicated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View 1.
  • Page 8 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 pin or the solder lands under the IC when all pins of the flat pack-IC.
  • Page 9 2. Installation With Iron Wire: 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more you can remove it easily.
  • Page 10 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

  • Page 11: Handling Precautions For Hdd

    HANDLING PRECAUTIONS FOR HDD CAUTION: 4. OTHERS a. Be careful so as not to do the followings. 1. SHOCK Otherwise, HDD might be damaged. a. Exposing HDD to shock may be the biggest - DO NOT disassemble HDD. damaging factor. Please note that HDD is easily - When handling HDD, be sure to hold both sides damaged even if dropped from any height.

  • Page 12: 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. [11] JACK CBA D6 *CN1802, Desolder [12] Fan Cover...
  • Page 13 Reference Notes 1. Locking Tabs (L-1) ,(L-2) and (L-3) are fragile. Be careful not to break them. 1-1. Release five Locking Tabs (L-1). 1-2. Release three Locking Tabs (L-2) and remove the Front Assembly. 1-3. Release three Locking Tabs (L-3). 2.
  • Page 14 [12] Fan Cover CN3001 [14] Rear Panel (S-9) [7] ATA CBA HDD Plate Earth Fan Earth [13] DC Fan Motor [9] HDD (S-6) Fig. D7 [8] HDD Bracket (S-5) Fig. D5 [15] POWER SUPPLY CBA (S-10) [10] Rear Panel Unit (S-8) (S-7) (S-10)

  • Page 15: How To Self-Check And Initialize The Hdd & Dvd

    HOW TO SELF-CHECK AND INITIALIZE THE HDD & DVD 1. Turn on the HDD & DVD. 2. To put the HDD & DVD into the HDD mode, press [HDD] on the remote control unit. 3. To put the HDD & DVD into the self-check mode, after pressing [VARIABLE SKIP] button, press the [3], [6], and [9] buttons on the remote control in that order within three seconds.
  • Page 16 Table 2: Indication of DVD self-check (*7) INDICATION DESCRIPTION Connection of DVD is normal. NOT FOUND DVD drive cannot be found. FFC cable (connecting to CN401) between the DVD drive and the DVD/HDD MAIN CBA is CABLE ERROR not connected correctly. Table 3: Indication of HDD self-check (*8) INDICATION DESCRIPTION...

  • Page 17: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Update Contents 4. Load the update disc. The TV screen will display Fig. c. Item Status - If the update disc contains only a single file, the update will initiate automatically when the disc is Update B/E FIRMWARE inserted.
  • Page 18 3. How to Verify the Firmware The status displayed in *2 is as shown below. Version Display Status 1. Turn the power on and remove the disc in the tray. Loading F/W from Update Disc or EXECUTING writing to Flash memory 2.

  • Page 19: Block Diagrams

    BLOCK DIAGRAMS System Control Block Diagram E2B25BLS 1-10-1...
  • Page 20 Digital Signal Process Block Diagram E2B25BLD 1-10-2...
  • Page 21 Video Block Diagram E2B25BLV 1-10-3...
  • Page 22 Audio Block Diagram E2B25BLA 1-10-4...
  • Page 23 Power Supply Block Diagram E2B25BLP 1-10-5...

  • Page 24: 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 25 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 (F2001) is blown, first 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.
  • Page 26 AV 1/5 Schematic Diagram *1 NOTE These components (IC1502, C1507) can be used in any models. However, you cannot mix components under Group A with the ones under Group B. You can choose either Group. The difference between Group A and Group B is shown below. Group A Group B R3112N211A-TR-F...
  • Page 27 AV 2/5 Schematic Diagram FL1501 MATRIX CHART TIME P-SCAN SHIFT TIME P-SCAN SHIFT CD R 1-11-4 E2B25SCAV2...
  • Page 28 AV 3/5 Schematic Diagram Comparison Chart of Models and Marks MODEL MARK HD-A2685 HD-A2885 HD-B2785 HD-D2885 1-11-5 E2B25SCAV3...
  • Page 29 AV 4/5 Schematic Diagram 1-11-6 E2B25SCAV4...
  • Page 30 AV 5/5 Schematic Diagram 1-11-7 E2B25SCAV5...
  • Page 31 Power Supply Schematic Diagram CAUTION ! CAUTION ! NOTE: Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. For continued protection against fire hazard, The voltage for parts in hot circuit is measured using If Main Fuse (F2001) is blown , check to see that all components in the power supply replace only with the same type fuse.
  • Page 32 CONTROL Schematic Diagram ATA Schematic Diagram E2B25SCCNT JACK Schematic Diagram E2B25SCATA E2B25SCJ 1-11-9...
  • Page 33 DVD/HDD MAIN 1/5 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD/HDD Main Schematic Diagram Section. 1-11-10 E2B25SCD1...
  • Page 34 DVD/HDD MAIN 2/5 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD/HDD Main Schematic Diagram Section. 1-11-11 E2B25SCD2...
  • Page 35 DVD/HDD MAIN 3/5 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD/HDD Main Schematic Diagram Section. 1-11-12 E2B25SCD3...
  • Page 36 DVD/HDD MAIN 4/5 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD/HDD Main Schematic Diagram Section. 1-11-13 E2B25SCD4...
  • Page 37 DVD/HDD MAIN 5/5 Schematic Diagram 2 NOTE: The order of pins shown in this diagram is different from that of actual IC101. IC101 is divided into five and shown as IC101 (1/5) ~ IC101 (5/5) in this DVD/HDD Main Schematic Diagram Section. 1-11-14 E2B25SCD5...
  • Page 38 AV CBA Top View 1-11-15 BE2B20F01042A...
  • Page 39 AV CBA Bottom View PIN 30 OF IC1201 PIN 14 OF PIN 28 OF CN1201 CN1151 PIN 22 OF CN1201 PIN 24 OF CN1201 PIN 26 OF CN1201 PIN 28 OF CN1201 1-11-16 BE2B20F01042A...
  • Page 40 Power Supply CBA Top 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. Also, in order to have the ability to increase the input replace only with the same type fuse.
  • Page 41 Power Supply CBA Bottom View Because a hot chassis ground is present in the power CAUTION ! 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. Also, in order to have the ability to increase the input replace only with the same type fuse.
  • Page 42 CONTROL CBA Top View ATA CBA Top View ATA CBA Bottom View CONTROL CBA Bottom View BE4340F01032 BE2B20F01042B Jack CBA Top View Jack CBA Bottom View BE2B20F01042D 1-11-19...

  • Page 43: Waveforms

    WAVEFORMS Pin 24 of CN1201 Pin 26 of CN1201 VIDEO-Y 0.2V 20µsec VIDEO-Cr 0.2V 20µsec Pin 22 of CN1201 Pin 14 of CN1201 VIDEO-C 0.2V 20µsec AUDIO(L)-OUT 0.5ms Pin 30 of IC1201 Pin 28 of CN1151 VIDEO-CVBS 0.5V 20µsec SPDIF 0.1µsec Pin 28 of CN1201 NOTE:...

  • Page 44: Wiring Diagram

    WIRING DIAGRAMS 1-13-1 E2B25WI...

  • Page 45: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS IC1501(SUB MICRO CONTROLLER IC ) Signal Mark Function Name Signal Mark Function F-RTS Not Used Name OUT SUB-TXD B/E System Reset VFD Driver IC Control OUT FL-DIN Data IN SUB-RXD B/E System Reset VFD Driver IC Control Not Used OUT FL-CLK Clock...
  • Page 46 IC1503 (FRONT PANEL CONTROL) Signal Mark Function Name Signal Function VCC1-CONT VCC_OFF(91pin) Control Name Not Used IN CLK Clock Input IN P-DOWN Power Failure Detection IN STB Serial Interface Strobe IN REMOTE2 Remote Control Sensor Not Used Not Used Not Used HDD,DVD Power OUT PWR-SW Supply Control...

  • Page 47: Lead Identifications

    2: Cathode 1: GND 3: Emitter 2: Vout 3: Vin 4: Collector 1 2 3 PT6313-S-TP(L) 2SK3798(Q) SSM3K15F(TE85L F) RC4580IP S2Y52(FUNAI Q H) SC16313G B C E MSP3407G-QG-B8-V3 MSP3417G-QG-B8-V3 G D S HA118326APF-E LD1117V M306H7MC-C16FP Note: A: Anode K: Cathode...

  • Page 48: Exploded Views

    2L060 2L040 2L010 ATA CBA 2L013 2B25 FM1001 2B26 2L071 AV CBA 2L011 2L020 2L012 2B28 2L070 JACK CBA [ D ] Comparison Chart of Models and Marks 2B11 2L042 Model Mark HD-A2685 CONTROL CBA HD-A2885 HD-B2785 HD-D2885 1-16-1 E2B25CEX...
  • Page 49 X20A X20B X22F, X22G X22C, Lower Side Upper Side [ C ] [ A ] LEFT REAR [ A,B ] X20C [ D ] X20D X20C Comparison Chart of Models and Marks Model Mark HD-A2685 HD-A2885 HD-B2785 HD-D2885 1-16-2 E2B25PEX...

  • Page 50: Mechanical Parts List

    Comparison Chart of Models and Marks DRY BATTERY ES-GR6M-C or XB0M571GLP01 DRY BATTERY R6P/2S XB0M451T0001 Model Mark RF CORD PAL 1.2M or WPZ0122LG001 HD-A2685 RF CABLE CC1001020012010 WPZ0122LW001 HD-A2885 ACCESSORY BAG E5795ED 0VM416059 HD-B2785 BAG REMOCON STD REMOCON 0VM406766 HD-D2885...

  • Page 51: Electrical Parts List

    CE0KMASDL101 C1160 ELECTROLYTIC CAP . 47µF/16V M H7 CE1CMASSL470 Model Mark C1161 ELECTROLYTIC CAP . 100µF/6.3V M H7 CE0KMASSL101 HD-A2685 C1162 CHIP CERAMIC CAP .(1608) F Z 0.1µF/ CHD1JZ30F104 HD-A2885 C1163 CHIP CERAMIC CAP .(1608) B K 0.01µF/ CHD1JK30B103 HD-B2785...
  • Page 52 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C1231 CHIP CERAMIC CAP .(1608) CH J 68pF/ CHD1JJ3CH680 C1292 ELECTROLYTIC CAP . 470µF/6.3V M CE0KMASDL471 C1293 ELECTROLYTIC CAP . 470µF/6.3V M CE0KMASDL471 C1232 ELECTROLYTIC CAP . 0.47µF/50V M CE1JMASDLR47 C1294 ELECTROLYTIC CAP .
  • Page 53 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C1636 CHIP CERAMIC CAP .(1608) CH J 100pF/ CHD1JJ3CH101 CN1801 AV-MAIN AV FFC WX1E2B10-007 WX1E2B10-007 DIODES C1638 ELECTROLYTIC CAP . 47µF/6.3V M or CE0KMASDL470 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 ELECTROLYTIC CAP .
  • Page 54 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. D1169 SCHOTTKY BARRIER DIODE SB140 or NDQZ000SB140 DIODE SWITCHING 1N4148-F0021 or NDTZ01N4148F SCHOTTKY BARRIER DIODE SB140 NDWZ000SB140 SWITCHING DIODE 1N4148M NDTZ01N4148M D1170 DIODE 1N5397-B or NDLZ001N5397 D1705 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 DIODE 1N5397BD NDL1001N5397...
  • Page 55 SWITCHING DIODE 1SS133(T-77) or QDTZ001SS133 BEAD CORE HF70BB3.5X10X1.3 XL03010TE001 DIODE SWITCHING 1N4148-F0021 or NDTZ01N4148F TRANSISTORS SWITCHING DIODE 1N4148M NDTZ01N4148M Q1015 TRANSISTOR S2Y52(FUNAI Q H) QQWZ00S2Y52Q Q1016 TRANSISTOR KTC3203-Y-AT/P or NQSYKTC3203P IC AUDIO PROCESSOR MSP3407G- NSZBA0SP3004 TRANSISTOR 2SC2120-Y(TE2 F T) QQSY2SC2120F QG-B8-V3...
  • Page 56 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. TRANSISTOR RN2203(TE4 F T) QQSZ0RN2203F TRANSISTOR KTC3199-Y-AT/P or NQSYKTC3199P Q1204 TRANSISTOR KTA-1266-GR-AT/P or NQS4KTA1266P TRANSISTOR 2SC1815-Y(TE2 F T) QQSY2SC1815F TRANSISTOR KTA1266-Y-AT/P NQSYKTA1266P Q1810 TRANSISTOR KTC3199-GR-AT/P or NQS4KTC3199P Q1205 NPN TRANSISTOR KRC103M-AT/P or NQSZKRC103MP TRANSISTOR 2SC1815-GR(TE2 F T) or...
  • Page 57 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES. 1/10W J 150 Ω or CHIP RES. 1/10W J 470 Ω or R1121 RRXAJR5Z0151 R1184 RRXAJR5Z0471 RES CHIP 1608 1/10W J 150 Ω RES CHIP 1608 1/10W J 470 Ω RRXA151YF002 RRXA471YF002 CHIP RES.
  • Page 58 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W F 33k Ω or RES CHIP 1608 1/10W J 100 Ω RRXAFR5Z3302 RRXA101YF002 RES CHIP 1608 1/10W F 33.0k Ω CHIP RES. 1/10W J 100 Ω or RTW3302YF002 R1512 RRXAJR5Z0101...
  • Page 59 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES. 1/10W J 75 Ω or CHIP RES. 1/10W J 1k Ω or R1564 RRXAJR5Z0750 R1649 RRXAJR5Z0102 RES CHIP 1608 1/10W J 75 Ω RES CHIP 1608 1/10W J 1.0k Ω RRXA750YF002 RRXA102YF002 CARBON RES.
  • Page 60 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. RES CHIP 1608 1/10W J 4.7k Ω CHIP RES. 1/10W J 10 Ω or RRXA472YF002 R2284 RRXAJR5Z0100 CHIP RES. 1/10W J 4.7k Ω or RES CHIP 1608 1/10W J 10 Ω R1855 RRXAJR5Z0472 RRXA100YF002...
  • Page 61 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. RES CHIP 1608 1/10W J 620 Ω RES CHIP 1608 1/10W J 2.2k Ω RRXA621YF002 RRXA222YF002 CHIP RES. 1/10W J 240 Ω or CHIP RES. 1/10W J 220 Ω or R1659 RRXAJR5Z0241 R1822...
  • Page 62 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C2217 ELECTROLYTIC CAP . 2200µF/10V SL or CE1AMZADL222 ELECTROLYTIC CAP . 2200µF/10V M CE1AMZPDL222 IC2101 PHOTOCOUPLER PS2561A-1(W) or QPEWPS2561A1 C2222 CERAMIC CAP . B K 470pF/500V CCD2JKP0B471 PHOTOCOUPLER EL817B or NPEB000EL817 C2224 CERAMIC CAP .
  • Page 63 Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W F 1k Ω or R2232 RRXAFR5H0102 CHIP RES. 1/10W F 1k Ω or RRXAFR5Z1001 RES CHIP 1608 1/10W F 1.00k Ω RTW1001YF002 CHIP RES. 1/10W J 200 Ω or R2233 RRXAJR5Z0201 RES CHIP 1608 1/10W J 200 Ω...
  • Page 64 HD-A2685/HD-A2885/HD-B2785/HD-D2885 E2B25/26ED/28BD/29ED 2006-11-21...

This manual is also suitable for:

Hd-a2885Hd-b2785Hd-d2885

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