Sony SDM-N50 Service Manual
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Sony SDM-N50 Service Manual

Tft lcd color computer display
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MODIFICATION
HISTORY
MODEL NAME : SDM-N50
SERVICE MANUAL
PARTS No. : 9-978-671-02
* Blue characters are linking.
# No.
DATA
#1
2000.5
A speaker manufactured by FOSTER which size was different from was added. (P.5-1)
#2
2000.5
The cable assy which a color was different from was added. (P.5-3)
#3
2000.5
The connection cable between LCD and Media engine was registered. (P.5-3)
#4
2000.5
The supply form of the part was changed. (P.5-1)
#5
2000.5
The part of the mentioned omission was added.
#6
2000.5
A HARNESS ASSY UB (1-900-253-80), a CABLE HOLDER (A) (4-075-633-01)
and a CABLE HOLDER (B) (4-075-634-01) were registered as a service part. (P.5-1)
#7
2001.1
MAIN BLOCK ASSYwas registered as a service part. (P.5-2)
CONTENTS
(P.2-4,
5-2)

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  • Page 1 The cable assy which a color was different from was added. (P.5-3) 2000.5 The connection cable between LCD and Media engine was registered. (P.5-3) 2000.5 The supply form of the part was changed. (P.5-1) MODEL NAME : SDM-N50 2000.5 The part of the mentioned omission was added. (P.2-4, 5-2) SERVICE MANUAL 2000.5...
  • Page 2 SDM-N50 SERVICE MANUAL US Model Canadian Model AEP Model Chassis No. SCC-L32A-A CHASSIS SPECIFICATIONS LCD panel Panel type: a-Si TFT Active Matrix Mass Display: Approx. 2.7 kg (5 lb 15 oz) Picture size: 15 inch (38 cm) Media engine (with stand):...
  • Page 3 SDM-N50 DIAGNOSIS Factorical preservation register LED indicates Display part trouble SHUTDOWN_LOG1 bit4 (16) Part of the body only Red (0.5 sec) and Off (0.5 sec) Backlight trouble SHUTDOWN_LOG1 bit2 (4) Parts of the body and the display Amber (0.5 sec) and Off (1.5 sec)
  • Page 4 SDM-N50 PRIMARY MODE MODE AT PRODUCTION MODE 8 MODE 9 MODE 10 MODE 11 MODE 12 MODE 13 MODE 14 MODE 15 RESOLUTION 800 X 600 800 X 600 800 X 600 800 X 600 — — 832 X 624...
  • Page 5 SDM-N50 PRIMARY MODE MODE AT PRODUCTION MODE 24 MODE 25 MODE 26 MODE 27 MODE 28 MODE 29 MODE 30 MODE 31 RESOLUTION 640 X 400 640 X 350 640 X 400 640 X 480 1024 X 768 640 X 400...
  • Page 6 VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR Parts on Set SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP- PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE- MENTS PUBLISHED BY SONY. CIRCUIT ADJUST- MENTS THAT ARE CRITICAL FOR SAFE OPERATION 0.15 µ...

  • Page 7: Table Of Contents

    SDM-N50 TABLE OF CONTENTS Section Title Page 1. GENERAL ..............1-1 2. DISASSEMBLY 2-1. U Board Removal ..........2-1 2-2. Base Assembly Removal ........2-1 2-3. B Board Removal ..........2-2 2-4. H Board Removal ..........2-3 2-5. LCD Module (TFT) Removal ......2-3 2-6.

  • Page 8: General

    • Near any equipment that generates a strong magnetic field, Consult your Sony dealer when replacing the fluorescent tube. such as a TV or various other household appliances.
  • Page 9 6 2 (volume) +/– and M(+)/m(–) buttons Media engine qg HD15 (RGB) input 2 connector (INPUT2) (page 8) Identifying parts and controls (pages 10, 12) This connector inputs RGB video signals (0.700 Vp-p, These buttons display the VOLUME menu and function as positive) and SYNC signals.
  • Page 10 x Connecting to a Macintosh or compatible If no picture appears on your screen Step 3: Connect the power cord Setup computer • Check that the monitor is correctly connected to the computer. • Check that the media engine is on. With the media engine, display, and computer switched off, Use the supplied Macintosh adapter.
  • Page 11 4 V CENTER (page 13) Using the stereo speaker Selecting the input signal V CENT ER Customizing Your Monitor Select the V CENTER menu to adjust the picture’s vertical You can listen to music, sounds, and other audio files using the You can connect two computers to this monitor using the INPUT centering.
  • Page 12 Start the Utility Disk and display the test pattern. For Macintosh Repeat steps 2 and 3 of “Eliminating flicker or blurring Click [Utility Disk] [SONY-Utility]. Brightness adjustment is made using a separate BRIGHTNESS (PHASE/PITCH).” menu from the main menu (page 11). This setting is stored in Press the MENU button.
  • Page 13 If necessary, fine tune the color temperature. Displaying a low-resolution signal Resetting the adjustments (RESET) Additional settings (Option) First press the M(+)/m(–) buttons to select ADJUST and press the OK button. Then press the M(+)/m(–) buttons to at the actual resolution (ZOOM) This monitor has the following two reset methods.
  • Page 14 Adjusting the backlight Selecting the on-screen menu language Technical Features If the screen is too bright, adjust the backlight. English, German, French, Spanish, Italian and Japanese versions First press the M(+)/m(–) buttons to select of the on-screen menus are available. The default setting is (BACKLIGHT) and press the OK button.
  • Page 15 If CABLE DISCONNECTED appears on the screen Automatic brightness adjustment function (light sensor) Troubleshooting This indicates that the video signal cable has been disconnected from the currently selected connector. This monitor is provided with a feature to automatically adjust the screen brightness according to the brightness of the surroundings. The Before contacting technical support, refer to this section.
  • Page 16 • If you replaced an old monitor with this monitor, reconnect the old monitor and do the following. Install the Windows Monitor Information Disk (page 9) and select this monitor (“SDM-N50”) from among the Sony monitors in the Windows 95/98 monitor selection screen.
  • Page 17 • Vertical blanking width should be more than 450 µsec. flashes of the 1 (power) indicator and inform your authorized Sony dealer of the monitor’s condition. Be sure to note the model Design and specifications are subject to change without notice.

  • Page 18: Disassembly

    SDM-N50 SECTION 2 DISASSEMBLY 2-1. U BOARD REMOVAL Open these hinge covers (F) and (R) by the – screw driver and so on. * When open the hinge cover (R), these claws in figure would be break so replace new parts.

  • Page 19: B Board Removal

    SDM-N50 2-3. B BOARD REMOVAL Three screws Remove the rear cover after move it in (Tapping screw 3 x 8) the direction of allow A and also remove concavities. Four concavities Shield case (B) Three screws (0 plate special head)

  • Page 20: H Board Removal

    SDM-N50 2-4. H BOARD REMOVAL Cover holder Three screws (+BVTP 3 x 6) Earth (H) Earth (H) H board CN501 LCD module (TFT) BH1 harness assembly Cushion 2-5. LCD MODULE (TFT) REMOVAL * Remove the B and H boards refering 2-3 and 2-4.

  • Page 21: A Board Removal

    SDM-N50 2-6. A BOARD REMOVAL Four screws (HD 15) CN705 CN701 Three connectors CN702 (CN705, CN701, CN702) Three screws (+P 3 x 5) Four screws (+BVTP 3 x 12) Four sheets (G) A board Case (L) 2-7. G BOARD REMOVAL * Remove A board refering 2-6.

  • Page 22: Adjustments

    SDM-N50 SECTION 3 ADJUSTMENTS Connect the personal computer, monitor, and signal generator as shown below, and control the monitor. Signal generator (VG-823, etc.) INPUT-1 Computer for jig TO CN107 CONNECTOR (A Board) * Maintain the Aging mode for over 30 minutes.
  • Page 23 SDM-N50 3. Adjustment of 5000°K (1) Confirm every R/G/B_USER_BKG are initialized value. (2) Receive MODE 15 (1024X768 60Hz) 80IRE. Set COLOR to 5000°K. (COLOR_INDEX=3) (3) Make adjustment with R/G_USR_DRV to set the chromaticity within the specification. y adjustment ..Make adjustment with B_USR_DRV.

  • Page 24: Diagrams

    SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAMS RGB PROCESS, SCAN CONVERTER, GV IF TRANSMITTER IC301 SYSTEM CONTROL IC214 SCAN CONVERTER IC205 IC304 A/D CONVERT CN102 VIDEO SW GV IF TRANSMITTER CN101 D RA0 RA D0 RED1 IN1(R) OUT(R) R IN LCD R0 S DATA P SDT P GREEN1...
  • Page 25 GV IF RECEIVER SUB SYSTEM CONTROL,INVERTER ( POWER SUPPLY,AUDIO IN ) IC601 CN505 IC790 GV IF RECEIVER BUFFER CN706 CN705 BUFF -IN2 OUT2 CN502 REFRQP AUDIO R Q771 AUDIO 31 . AUDIO GND SDT P SDATAP AUDIO L R0 - R5 SDT GND BUFF -IN1...
  • Page 26 CN401 AUDIO 12V AUDIO 12V IC402 IC408 IC403 POWER AMP IC401 CN404 AUDIO PROCESS STBY 5V STEREO DIPOLE (TRE,BASS,LOUD) R OUT+ -IN1 OUT A+ R OUT+ SPEAKER R OUT R OUT AUDIO R +IN1 0UT1 IN A- OUT A- R OUT- AUDIO GND R OUT- AUDIO L...

  • Page 27: Circuit Boards Location

    Terminal name of semiconductors in silk screen 4-3. SCHEMATIC DIAGRAMS AND PRINTED 4-2. CIRCUIT BOARDS LOCATION WIRING BOARDS printed circuit ( Circuit Device Printed symbol Terminal name DISPLAY Note: Collector • All capacitors are in µF unless otherwise noted. (pF: µµF) Transistor Emitter Base...

  • Page 28: Schematic Diagrams Of A (P1-P3) Board

    (1) Schematic Diagrams of A (P1-P3) Boards -P1-a (SYSTEM CONTROL) • Divided circuit diagram One sheet of A-P1 board circuit diagram is divided into two sheets, each having the code A-P1-a to A-P1-b . For example, the destination ab1 on the A-P1-a sheet is connected to ab1 on the A-P1-b sheet.
  • Page 29 R124 1/16W REFCLK /WRL AD(2..7) TO P3-a CH3_RST IC108 TO P2-a INPUT_SEL IC102 TC74HC4066AFT(EL) TC7S04FU(TE85R) TO P3-b GV_IFON CH3_AD0 TO P2-a IN B P3-a IN A POLH EXITH TO P2-a CH3_AD1 POLV EXITV C127 R143 R141 1/16W R125 R133 4.7k C120 1/16W 0.1 25V F...
  • Page 30 D208 D209 D210 MA3075WA-(TX)MA3075WA-(TX) MA3075WA-(TX) L201 INPUT1 CN102 47µH C201 C203 0.01 R277 RED1 C205 C287 C207 C209 C210 0.01 R278 C211 GREEN1 R212 VCC1(R) VCC2(R) 1/16W C213 C216 IN1(R) OUT(R) R279 0.01 C212 VCC1(G) R215 BLUE1 1/16W IN1(G) C215 R209 C214 R210...
  • Page 31 SER12 SER11 HSYNC REFIN COAST REFOUT PWRDNB CKEXT FILT • Divided circuit diagram HSOUT One sheet of A-P2 board circuit diagram is divided into two DATACK/ sheets, each having the code A-P2-a to A-P2-b . For DATACK example, the destination ab1 on the A-P2-a sheet is connected to ab1 on the A-P2-b sheet.
  • Page 32 -P3-a (SCAN CONVERTER) DVSYNC MCWR MCINT DHSYNC MCALE VSS_1 VDD_13 CLAMPOUT CHIPSELECT R AD7 RGB(23) MCAD(8) R AD6 RGB(22) MCAD(7) R AD5 RGB(21) VSS_13 R AD4 RGB(20) MCAD(6) R AD3 RGB(19) MCAD(5) R AD2 RGB(18) MCAD(4) R AD1 RGB(17) MCAD(3) R AD0 RGB(16) MCAD(2)
  • Page 33 LCDG1 LCDB4 LCDG0 LCDB5 LCDR5 VSYNC LCDR4 HSYNC LCDR3 SFTCLK LCDR2 LCDR1 CNTL LCDR0 REFREQ SDDT0 SDDT15 SDDT16 SDDT31 DQ15 DQ15 SDDT1 SDDT14 SDDT17 SDDT30 DQ14 DQ14 25 26 27 28 29 30 31 32 33 34 35 36 VSSQ VSSQ VSSQ VSSQ...
  • Page 34 • A BOARD SEMICONDUCTOR [ RGB PROCESS, SCAN CONVERTER, GVIF TRANSMITTER, SYSTEM CONTROL ] LOCATION — A BOARD (Conductor Side) — — A BOARD (Component Side) — Conductor Component Side Side IC101 B–4 IC102 B–1 IC103 A–4 IC105 C–2 IC106 A–2 IC107 A–2...

  • Page 35: Schematic Diagrams Of B (P1-P3) Board

    (2) Schematic Diagrams of B (P1-P3) Boards CN504 CN505 (GV IF RECEIVER) C626 C627 FL603 NFM60R20 TO P2 RFB602 R607 RFB4 C604 C602 C603 1/16W STBY_5V C601 FB613 R601 3.3V 1/16W DDON_U TO P2 R604 FL601 4.7k DDON_U NFA3216G2C101 1/16W HP_STAT HP_STAT MUTE...
  • Page 36 DDON_U STBY_5V DDON3 TO P1 DDON2 FB501 FB502 C527 TO P3 6.3V FB504 R518 C504 C503 1/16W C512 C513 C510 C511 C506 C507 100p 100p 0.22 0.01 C508 STBY5V X501 IC503 MM1170BFB WDT RESET R510 1/16W P20/A16 PA4/CKOT R507 P21/A17 1/16W P22/A18 R509...
  • Page 37 L653 PS651 L651 22µH 47µH TO P2 Q653 FZT853-TA 5V(SENS) 11.3 T651 TO P2 I_SENS TRANSFORMER POWER R651 100k 1/16W R653 R654 CN507 1/4W 1/4W R657 Q652 C652 0.12 C653 DTA143XKA-T146 100V R658 TO LAMP R652 R659 R655 R656 11.3 5.1k 1/16W 1/4W...
  • Page 38 [ GV IF RECEOVER SIB SYSTEM CONTROL, INVERTER ] — B BOARD (Component Side) — — B BOARD (Conductor Side) — B BOARD Terminal name of semiconductors in silk screen printed circuit ( Ref. Q501, Q601, Q651, Q652 !£ Q602 !§...

  • Page 39: Schematic Diagrams Of H Board

    (3) Schematic Diagram of H Board R910 R909 R908 R907 R906 8.2k 2.7k 1.5k 3.3k STBY5V 1/16W 1/16W 1/16W 1/16W 1/16W 5V (STBY) USER INPUT R905 R904 R903 R902 S906 2.4k SW-1 CONTROL 1/16W 1/16W 1/16W 1/16W D901 S901 SW-1 BRPG1201W-TR POWER D915...
  • Page 40 [ USER CONTROL ] — H BOARD (Component Side) — — H BOARD (Conductor Side) — H BOARD Terminal name of semiconductors in silk screen printed circuit ( Ref. Q903, Q930, Q931 D905 - D916 : Refer to Terminal name of semiconductors in silk screen printed circuit (see page 4-9) 4-34 4-33...

  • Page 41: Schematic Diagrams Of U Board

    (4) Schematic Diagrams of U Board TO B BOARD CN504 (AUDIO) B-SS3514<J..>-U-a(24) • Divided circuit diagram One sheet of U board circuit diagram is divided into two sheets, each having the code U-a to U-b. For example, the destination ab1 on the U-a sheet is connected to ab1 on the U-b sheet.
  • Page 42 LOUT DVDD ROUT DSEL0 11 12 13 14 15 16 17 18 19 20 PLLC DSEL1 AVSS DSEL2 EXTAL XTAL DOUT DVSS TSTCK BCLK TST1 SYNCN TSTNI CTLSEL TSTNO DVDD • Divided circuit diagram One sheet of U board circuit diagram is divided into two sheets, each having the code U-a to U-b.
  • Page 43 [ AUDIO ] — U BOARD (Component Side) — — U BOARD (Conductor Side) — U BOARD Terminal name of semiconductors in silk screen printed circuit ( Ref. Q401, Q404 - Q407 Q410, Q411 !£ Q408, Q409 D403 - D406 D413 - D422, D430 !¡...
  • Page 44 [ POWER SUPPLY, AUDIO IN ] — G BOARD (Conductor Side) — — G BOARD (Component Side) — G BOARD Terminal name of semiconductors in silk screen printed circuit ( Ref. Q770, Q771 D708 - D710 D707, D711, D712 !¡ D767, D768 : Refer to Terminal name of semiconductors in silk screen printed circuit (see page 4-9)

  • Page 45: Schematic Diagrams Of G (P1-P2) Board

    (5) Schematic Diagrams of G (P1-P2) Boards CN704 R731 POWER AC L OUT T702 R728 TFM96455 AC L IN D702 1/2W D10SC9M FH702 R702 C703 D701 100k 0.01 C724 D2SB60A 630V F701 0.0047 T701 250V 7.4MHz D703 CN703 C704 C705 C723 R701 C730...
  • Page 46 R788 CN705 1/10W AUDIO_R (AUDIO IN) R786 R780 AUDIO_GND 1/4W 1/4W AUDIO_L R789 IC790 AUDIO_GND µPC358G2-E2 1/10W TO A BOARD BUFFER R772 R770 100k R776 C793 R777 CN106 100k 1/10W PS791 100p 1/10W 1/4W C772 1/4W C790 OUT1 C770 R790 R794 AUDIO R774...

  • Page 47: Semiconductors

    4-5. SEMICONDUCTORS AD9884-AKS-100S XCB1456R M52758FP YSS901-F IRFIBC40G-LF38 D10SC9M MA3075WA-TX MA3130WA-TX TOP VIEW TOP VIEW 64 pin QFP 36 pin DIP TOP VIEW TOP VIEW UPC1093J-1-T BA033FP-E2 IS455J PC123F2 BA05FP-E2 PC123FY2 PN109F D2SB60A-F04 MA8082-H-TX ANODE CATHODE LM4863MTEX TDA7315D013TR DTA114EKA-T146 BA4560F RE10M-B2 D3FS4A-TA DTA123JKA-T146 MAX1626ESA-TE2...

  • Page 48: Exploded Views

    SDM-N50 SECTION 5 EXPLODED VIEWS ¡ The components identified by mark NOTE: are critical for safety. • Items with no part number and no • Items marked " * " are not stocked since Replace only with part number specified.

  • Page 49: Chassis

    SDM-N50 5-2. CHASSIS ¡ The components identified by mark 7-685-648-79 +BVTP 3X12 are critical for safety. Replace only with part number specified. 7-682-545-01 +B 3X4 Les composants identifiés par une ¡ marque sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

  • Page 50: Packing Materials

    SDM-N50 5-3. PACKING MATERIALS ¡ The components identified by mark 105 106 109 are critical for safety. Replace only with part number specified. Les composants identifiés par une ¡ marque sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

  • Page 51: Electrical Parts List

    SDM-N50 SDM-N50 ¡ Les composants identifiés par une The components identified by mark SECTION 6 ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. ELECTRICAL PARTS LIST portant le numéro spécifié.
  • Page 52 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 53 SDM-N50 ¡ Les composants identifiés par une The components identified by mark ¡ marque sont critiques pour la sécurité. are critical for safety. (b)(h) Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.
  • Page 54 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 55 SDM-N50 ¡ Les composants identifiés par une The components identified by mark ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.
  • Page 56 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. (u)(a) Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 57 SDM-N50 ¡ Les composants identifiés par une The components identified by mark ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.
  • Page 58 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 59 SDM-N50 ¡ Les composants identifiés par une The components identified by mark ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.
  • Page 60 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 61 SDM-N50 ¡ Les composants identifiés par une The components identified by mark ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.
  • Page 62 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ are critical for safety. marque sont critiques pour la sécurité. Replace only with part number specified. Ne les remplacer que par une pièce portant le numéro spécifié.
  • Page 63 SDM-N50 ¡ The components identified by mark Les composants identifiés par une ¡ marque sont critiques pour la sécurité. are critical for safety. Ne les remplacer que par une pièce Replace only with part number specified. portant le numéro spécifié.

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