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Toshiba D-R350SB Service Manual
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Toshiba D-R350SB Service Manual

Toshiba D-R350SB Service Manual

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FILE NO. 810-200548
SERVICE MANUAL
DIGITAL VIDEO
DVD VIDEO RECORDER
D-R350SB
5
May, 2005

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Summary of Contents for Toshiba D-R350SB

  • Page 1 FILE NO. 810-200548 SERVICE MANUAL DIGITAL VIDEO DVD VIDEO RECORDER D-R350SB May, 2005...
  • Page 2 LASER BEAM CAUTION LABEL When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of a laser may be received. PREPARATION OF SERVICING Pickup Head consists of a laser diode that is very susceptible to external static electricity. Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement, its life might be shortened.

  • Page 3: Table Of Contents

    CONTENTS SECTION 1 GENERAL DESCRIPTIONS 2. LOCATION OF MAIN PARTS 1. OPERATING INSTRUCTIONS 2-1. Location of Main Parts 2-2. Location of PC Boards SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES 1-2. PC Board Replacement 1. REPLACEMENT OF MECHANICAL PARTS 1-2-1. Digital PC Board 1-1.

  • Page 4: Operating Instructions

    SECTION 1 GENERAL DESCRIPTIONS 1. OPERATING INSTRUCTIONS Please refer to the owner's manual about the contents.
  • Page 5 2. LOCATION OF MAIN PARTS 2-1. Location of Main Parts RAM1 RAM DRIVE ZG45 FAN Fig. 1-2-1 2-2. Location of PC Boards EU05 Mother PC board EU01 Digital PC board EU02 Power PC board EU03B Front (L) PC board EU56 Front (LED) PC board EU55 Front Jack PC board EU03A Front (R) PC board...

  • Page 6: Replacement Of Mechanical Parts

    SECTION 2 PART REPLACEMENT AND ADJUSTMENT PROCEDURES CAUTIONS BEFORE STARTING PART REPLACEMENT Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to ground as required. Many screws are used inside the unit. To prevent the screws from missing or dropping, etc. always use a magnetized screwdriver in servicing.

  • Page 7: Front Panel

    1-1-2. Front Panel 1. Remove the top cover. (Refer to item 1-1-1.) 2. Remove the Digital PC board. (Refer to item 1-2-1.) 3. Disconnect three connectors (1). 4. Remove two screws (2) and four claws, then remove the front panel (3). Connector (1) Connector (1) Connector (1)

  • Page 8: Rear Panel

    1-1-4. Rear Panel 1. Remove the top cover. (Refer to item 1-1-1.) 2. Peel of the tape (1). 3. Remove two screws (2) and seven screws (3). 4. Remove two claws, then remove the rear panel (4). 5. Remove two screws (5), then remove the fan (6). Note: •...
  • Page 9 1-2. PC Board Replacement 1-2-1. Digital PC Board 1. Remove the top cover. (Refer to item 1-1-1.) 2. Disconnect the flexible cable (1). 3. Remove four screws (2), then remove the Digital PC board (3). Note: • The Digital PC board (3) is connected to the Mother PC board (4) by three connectors (5). Take notice when removing. Flexible cable (1) Flexible...
  • Page 10 1-2-2. Mother PC Board 1. Remove the rear panel. (Refer to item 1-1-4.) 2. Remove the Digital PC board. (Refer to item 1-2-1.) 3. Disconnect three connectors (1). 4. Remove five screws (2) . 5. Pull out the Mother PC board (3) toward the rear side (indicated by the arrow). Screws (2) Connector (1) Connectors (1)
  • Page 11 1-2-3. Power PC Board 1. Remove the RAM drive. (Refer to item 1-1-3.) 2. Disconnect four connectors (1). 3. Remove four screws (2), then remove the Power PC board (3). Connectors (1) Connector (1) Screws (2) Connector (1) Power PC board (3) Fig.
  • Page 12 1-2-4. Front (R), Front (L), Front (LED) and Front Jack PC Boards 1. Remove the front panel. (Refer to item 1-1-2.) 2. Peel off the tape (1). 3. Remove four screws (2), then remove the stay (3). 4. Remove four screws (4) and two screws (5), then remove the Front (R) PC board (6) and Front (LED) PC board (7). 5.
  • Page 13 2. WIRING CONNECTION DIAGRAM After the servicing is complete, return the wiring to its original state by using the diagram below as a reference. Mother PC board Power PC board Digital PC board W051 W102 W101 Front panel W104 RAM drive W801 : Tape : Flexible cable...

  • Page 14: Circuit Symbols And Supplementary Explanation

    SECTION 3 SERVICING DIAGRAMS 1. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION 1-1. Precautions for Part Replacement • In the schematic diagram, parts marked (ex. • Using the parts other than those specified shall violate the regulations, and may cause troubles such as F801) are critical part to meet the safety regulations, operation failures, fire etc.

  • Page 15: Inductor Indication

    1-4. Inductor Indication Eg. 4 ... H None Unit ... mH ... mH Tolerance None ... ±5% ... ±0.1% ... ±0.25% ... ±0.5% ... ±1% Type name ... ±2% ... ±10% ... ±20% Fig. 3-1-4 1-5. Waveform and Voltage Measurement Eg.
  • Page 16 EU01 DIGITAL LEADS memo CABLE W051 W101 LEADS CABLE W102 LEADS CABLE W103 PARALLEL CABLE W104 LEADS CABLE W105 PARALLEL CABLE W701 LEADS CABLE W801 LEADS CABLE RAM1 RAM DRIVE memo W051 WB01 LEADS CABLE TOSHIBA DRIVE Fig. 3-2-1...
  • Page 17 DW05 CW37 RX32 RX33 DX09 RW27 RW36 RW60 RW61 DW19 RW22 RW21 RW62 RW63 RW05 RW14 RW12 RW03 DX08 DX06 DW10 CW26 CW28 CW40 CW41 CW24 CW25 CW42 RW76 CW27 CW30 CW22 CW23 DW09 DW13 Q901 RW75 RW73 RW74 RW72 RW79 RW77 RW78...
  • Page 18 SECTION 4 PARTS LIST SAFETY PRECAUTION The parts identified by ! ( ) mark are critical for safety. Replace only with part number specified. The mounting position of replacement is to be identical with originals. The substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.
  • Page 19 1. EXPLODED VIEWS 1-1. Packing Assembly Z031 Z032 Z033 Z002 Z001 Z001A Note: A clamp filter (Z001A) is attached to a power cord (Z001). Refer to the figure below for the installation. Power supply cable Turn the power supply cable 2 round in the clamp filter.
  • Page 20 1-2. Chassis Assembly ZG20 EU01 W051 RAM1 ZG45 EU05 EU02 EU03B EU55 EU56 EU03A ZG01 Fig. 4-1-2...
  • Page 21 2. PARTS LIST Location Part No. Description - MECHANICAL PARTS - RAM1 P000438600 DVD-RAM DAV-WR412(RAM-R650) W051 P000442580 Cable,Flexible FFC,40P,L140 Z001 79088034 Power Cord Z001A P000440210 Filter ZCAT2132-1130 Z002 P000442540 Remote Control Unit SE-0194 Z031 P000442550 Owners Manual,ST English Z032 P000442560 Owners Manual,OP English Z033...
  • Page 22 Location Part No. Description - ELECTRICAL PARTS - EU01 P000442590 PC Board Assy Digital - INTEGRATED CIRCUITS - IC202 P000378050 SN74AHC1G04HDCKR IC203 P000378050 SN74AHC1G04HDCKR IC302 P000416750 BA25BC0FP IC303 P000440410 MM1573DNRE IC304 P000391240 NJM2125F IC306 P000378040 SN74AHC1G08HDCKR IC307 79040306 PST594JMT IC317 P000377920 SN74LV244APWR - TRANSISTORS -...
  • Page 23 Location Part No. Description D807 79060070 Diode HT15G D821 79060070 Diode HT15G D822 79060071 Diode HER152G D823 79060010 Diode RK46 D824 79060070 Diode HT15G D825 79060070 Diode HT15G D826 79060070 Diode HT15G D827 79060096 Diode,Zener MTZJT-7733D D828 79060072 Diode 1N4005S D829 79060072 Diode...
  • Page 24 Location Part No. Description IC703 P000442350 LC74793JM-TLM-E IC901 P000440480 PCM1755DBQR IC902 P000440510 RC4580IDR IC904 79040397 MM1575ANRE IC906 P000416650 IC,Terminal,OPT LAF1001-0301F ICB10 P000395150 MM1565AFBE ICM01 P000378240 MSP3417G ICM02 P000395160 PQ05DZ1UJ00H ICX01 P000442360 LV7105M-MPB-E ICX02 P000442370 MM1623XFBE ICX03 P000405080 XC6209 ICX04 P000395150 MM1565AFBE - TRANSISTORS - Q901...
  • Page 25 Location Part No. Description JX02 P000434970 Connector,RGB MRC-021V-29PC JX03 P000434970 Connector,RGB MRC-021V-29PC MB01 P000442660 Tuner TCPL0601PD25T X700 P000391040 Resonator,Crystal AT-41-12.5M X701 P000363400 Oscillator,Crystal SP-T2A X702 P000395090 Resonator,Ceramic FCR4.43MC5AT XM01 P000395100 Resonator,Crystal AT-41-18.432M EU55 P000442640 PC Board Assy Front Jack - MISCELLANEOUS - PJ111 P000402780 Jack,3P+1Y/C...
  • Page 26 SPECIFICATIONS Power requirement during operation Power requirement at standby 3.1W Power supply 230V AC, 50Hz Mass 3.4kg External dimension Width 430 x Height 58 x Depth 325mm Tuner System: Frequency synthesizer Channel coverage: PAL l VHF: A-J, 11, 13, E2-E12 UHF: E21-E69 CATV: X, Y, Z,S1-S41,1-53 (48MHz to 464MHz, 8MHz steps)
  • Page 27 1 1, SHIBAURA 1 CHOME, MINATO KU, TOKYO 105 8001, JAPAN...
  • Page 28 FILE NO. 810-200548 SERVICE MANUAL DIGITAL VIDEO DVD VIDEO RECORDER D-R350SB May, 2005...

  • Page 29: Block Diagrams

    3. BLOCK DIAGRAMS 3-1. Overall Block Diagram Digital UNIT Audio LPF IC305 DVD RAM/RW Drive 6bit EEPROM ICX01 IC540 IC901 AUDIO Optical CV/SRGB in D/A Converter Digital out UPD61 75F1 PCM 755 AUDIO OUT AUDIO IN L/R FRAME SYNC 64M+32M ENCODE FLASH ROM ENCRIPT...
  • Page 30 4. CIRCUIT DIAGRAMS 4-1. Power Supply Circuit Diagram IC801 (Drain - GND) ON - MODE AC240 50Hz IN Ch1 - (Drain - Source) V = 100V / div H = 10us / div Fig. 3-4-1...
  • Page 31 • Table of the Terminal Voltage of the Power Supply Circuit Conditions : AC240V 50Hz IN IC801 IC821 IC822 PIN No, 5.85V 14.58V 2.49V 4.18V 17.36V 5.84V 14.33V 2.47V 4.23V 13.68V 4.42V 11.99V DVD-PLAY 5.84V 14.33V 2.47V 4.23V 13.68V 4.42V 11.99V IC823 IC824...

  • Page 32: Front Circuit Diagram

    4-2. Front Circuit Diagram 4-2-1. Front Jack Circuit Diagram Fig. 3-4-2...
  • Page 33 4-2-2. Front (L) Circuit Diagram Fig. 3-4-3...
  • Page 34 4-2-3. Front (R) Circuit Diagram Fig. 3-4-4...
  • Page 35 4-2-4. Front LED Circuit Diagram Fig. 3-4-5...
  • Page 36 4-3. Digital Circuit Diagram Fig. 3-4-6...

  • Page 37: Digital Circuit Diagram

    4-3. Digital Circuit Diagram...
  • Page 44 Fig. 3-4-6...

  • Page 45: Mother Circuit Diagram

    4-4. Mother Circuit Diagram 4-4-1. Tuner Interface Circuit Diagram [SH.1] Example of connection indication: Drawing sheet No. Signal name [SH.3] Fig. 3-4-7...
  • Page 46 4-4-2. Audio Circuit Diagram [SH.2] Fig. 3-4-8...
  • Page 47 4-4-3. Timer Circuit Diagram [SH.3] Fig. 3-4-9...

  • Page 48: Video Circuit Diagram [Sh.4]

    4-4-4. Video Circuit Diagram [SH.4] Fig. 3-4-10...
  • Page 49 4-4-5. MSP Circuit Diagram [SH.5] Fig. 3-4-11...

  • Page 50: Pc Boards

    5. PC BOARDS 5-1. Power Supply PC Board Fig. 3-5-1 EU02 Power Supply PC Board (Top side) Fig. 3-5-2 EU02 Power Supply PC Board (Bottom side)

  • Page 51: Front Jack Pc Board

    5-2. Front Jack PC Board Fig. 3-5-3 EU55 Front Jack PC Broad (Top side) Fig. 3-5-4 EU55 Front Jack PC Broad (Bottom side) 5-3. Front (L) PC Board Fig. 3-5-5 EU03B Front (L) PC Broad (Top side) Fig. 3-5-6 EU03B Front (L) PC Broad (Bottom side)
  • Page 52 5-4. Front (R) PC Board Fig. 3-5-7 EU03A Front (R) PC Broad (Top side) Fig. 3-5-8 EU03A Front (R) PC Broad (Bottom side)

  • Page 53: Front Led Pc Board

    5-5. Front LED PC Board Fig. 3-5-9 EU56 Front LED PC Broad (Top side) Fig. 3-5-10 EU56 Front LED PC Broad (Bottom side)

  • Page 54: Digital Pc Board

    5-6. Digital PC Board R305 R309 R628 Q304 Q305 R308 R388 R387 R340 R341 R385 R335 R336 R384 TP304 TP302 TP303 R311 TP301 R310 CN302 CN301 R383 R382 R381 R379 TP306 TP305 C313 Q303 Q302 Q301 C304 C317 R396 E347 E346 R339 R338...

  • Page 55: Mother Pc Board

    5-7. Mother PC Board JX01 JX03 JX02 MB01 C930 C933 CX34 CX35 CB11 DW03 DW14 DW16 DW07 RW17 RW19 DW20 LB22 DW01 QW01 QW02 RW18 CW36 RW49 CX60 CX62 RW15 CW12 RW57RW59 R927 CX46 R928 CB04 LB21 CX45 CX63 CX61 C912 CX28 RW81...

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