Sony KLV-20G300A Service Manual
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Sony KLV-20G300A Service Manual

Lcd hdtv monitor
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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL
MODEL NAME
KLV-20G300A
KLV-20G300A
ORIGINAL MANUAL ISSUE DATE: 4/2007
REVISION DATE
9-834-172-01
REMOTE COMMANDER
RM-YA007
RM-YA007
SUBJECT
LAX G
DESTINATION
CANADA
MEXICO
LCD HDTV MONITOR
CHASSIS

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Summary of Contents for Sony KLV-20G300A

  • Page 1 HISTORY INFORMATION FOR THE FOLLOWING MANUAL: LAX G SERVICE MANUAL CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION KLV-20G300A RM-YA007 CANADA KLV-20G300A RM-YA007 MEXICO ORIGINAL MANUAL ISSUE DATE: 4/2007 REVISION DATE SUBJECT LCD HDTV MONITOR 9-834-172-01...
  • Page 2 LAX G SERVICE MANUAL CHASSIS MODEL NAME REMOTE COMMANDER DESTINATION KLV-20G300A RM-YA007 CANADA KLV-20G300A RM-YA007 MEXICO KLV-20G300A RM-YA007 LCD HDTV MONITOR 9-834-172-01...

  • Page 3: Table Of Contents

    4-3. BLOCK DIAGRAM 4-4. SCHEMATICS A (Main) Board 16-24 G (Power Inverter) Board 25-27 H1, H2, H3 Board 28-30 4-5. PATTURN Layout A (Main) Board G (Power Inverter) Board H1, H2, H3 Board SECTION 5: EXPLODED VIEW & PARTS LIST 34-35 KLV-20G300A...

  • Page 4: Specifications

    Stereo mini jack Impedance: 16 ohms Optional accessories’ availability may depend on its stock. Speaker/Full range (2) 40 x 100 mm × 4 inches) Speaker output: Design and specifications are subject to change 5 W + 5 W without notice. KLV-20G300A...
  • Page 5 Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur. ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!! Remplacer tout les composants par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony.
  • Page 6 AC Volt-meter AC Volt-meter Good Earth Ground Good Earth Ground Such as WATER PIPE, Such as WATER PIPE, To Instruments To Instruments CONDUIT etc. CONDUIT etc. exposed exposed METALLIC PARTS METALLIC PARTS 1.5 Kohm / 10W 1.5 Kohm / 10W KLV-20G300A...
  • Page 7 Due to the higher melting point of Lead Free Solder the soldering iron tip temperature needs to be set to 370 degrees centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics. For more information on the use of Lead Free Solder, please refer to KLV-20G300A...
  • Page 8 Try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see Figure B). Leakage Test To Exposed Metal Parts on Set Voltmeter 0.15 µF (0.75V) Earth Ground KLV-20G300A...

  • Page 9: Section 1: Disassembly Instruction

    Remove FFC cable, 6 angle A (Main) Board nut, 5 screws and 4 Assy and G connectors to release the A (Inverter/Power) (Main) Board. Board Assy Remove 7 screws and 8 Removal connectors to release the G (Inverter/Power) Board Assy. KLV-20G300A...
  • Page 10 Remove 1 screw and 1 (Earphone) connector to release the H3 Removal Board Remove 11 screws and 5 Bezel Removal location of connector lock to release the Front Bezel. Remove 4 screws to release Main Frame the Main Frame from LCD Removal Panel. KLV-20G300A...

  • Page 11: Section 2: Service Mode

    Default is "OFF", when you adjust white balance, change it to "ON” Color mode change menu (COOL, NUTRAL, WARM) COLOR TEMPERTURE R GAIN G GAIN B GAIN White balance adjustment resister, refer to WB adjust procedure R OFFSET G OFFSET B OFFSET KLV-20G300A...

  • Page 12: Section 3: Adjustment

    2) Repeat adjustment as same step of 2) to 5) till White Balance is as same level as good monitor. 11) Change "WHITE BALANCE" from "ON" to "OFF "in SERVICE MENU. 3.5. Average Value of W/B Green Blue Green Blue Gain Gain Gain Offset Offset Offset KLV-20G300A...

  • Page 13: Section 4: Diagrams

    Section 4: Diagrams 4. Diagrams 4-1. Board LOCATION / WIRING A Board G Board Board H2 Board H1 Board KLV-20G300A...
  • Page 14 CN202 INV-DIM-ADJ INV-DIM-ADJ INV-ON/OFF INV-ON/OFF POWER-SAV POWER-SAV G Baord CN8102 HP-L HP-L CN802 A Baord HP-DET HP-DET EARPHONE BOARD HP-R HP-R H3 Baord Audio L+ CN805 Audio L- Audio R- CN405 Audio R+ TTL LINE TTL LINE PANEL 20" KLV-20G300A...

  • Page 15: 4-3. Block Diagram

    IC708 LD1117 NTSC_CVBS CN404 ADJ==>8V UPDATE CODE I2S OUT I2S IN RXD/TXD_C +30V NTSC_CVBS TM701/TM702 TV SOUND ( R-L ) SONY TUNER TUNER_I2C NTSC+PAL TUNER TVSOUND (SIF) CN601 AV1-SV1 R/L +12V CN805 CN601 SPEAKER 5W AV2-SV2 R/L IC801 TVSOUND (SIF)
  • Page 16 R459 NC R453 10K C4474 C4474 R460 NC R454 10K Mounted PWB A Board (Main Board) (1/9) XTAL R460 10K R454 NC 22uF/10V 22uF/10V 1206 1206 Cortez Lite FLI8531 Video Processor & Scaler (IC401A) AND IR LED , Key control KLV-20G300A...
  • Page 17 1000pF 1000pF 1000pF 1000pF 1000pF 1000pF 1000pF 1000pF R487 R487 R488 R488 HOLD# ROM_WP HOLD# 1206 1206 1206 1206 Mounted PWB A Board (Main Board) (2/9) Cortez Lite FLI8531 Video Processor & Scaler (IC401B) AND DDR-SDRAM (IC403), Serial-Flash (IC405) KLV-20G300A...
  • Page 18 10uF/10V 10uF/10V 0.1uF/50V 0.1uF/50V 10uF/10V 10uF/10V 0.1uF/50V 0.1uF/50V 10uF/10V 10uF/10V 0.1uF/50V 0.1uF/50V 10uF/10V 10uF/10V 0.1uF/50V 0.1uF/50V 0805 0805 0805 0805 0805 0805 0805 0805 Mounted PWB A Board (Main Board) (3/9) Cortez Lite FLI8531 Video Processor & Scaler (IC401C) KLV-20G300A...
  • Page 19 22uF/10V 22uF/10V 10uF/10V 10uF/10V 470pF/50V 470pF/50V 22uF/10V 22uF/10V 22uF/10V 22uF/10V 1206 1206 1206 1206 0.1uF/50V 0.1uF/50V 0805 0805 1206 1206 1206 1206 Mounted PWB A Board (Main Board) (4/9) THC63LVDF84A 6 Bit RGB OUT to Panel via FCC (IC406) KLV-20G300A...
  • Page 20 C730 C730 R743 Not Used 4.7KR 4.7KR 1206 1206 4.7KR 4.7KR C720 C720 1K/ 1% 1K/ 1% 1uF/50V 1uF/50V 0.22uF/50V 0.22uF/50V 0.1uF/50V 0.1uF/50V R738 R738 1.54K/1% 1.54K/1% Mounted PWB A Board (Main Board) (5/9) TV TUNER (TM701/702) BTF-PA-404Z(CM), BTF-BG421RZ(PA) KLV-20G300A...
  • Page 21 C827 C827 C828 C828 R832 R832 R833 R833 C628 C628 R872 R872 R873 R873 100pF 100pF 100pF 100pF 10uF/16V 10uF/16V NC/0R NC/0R NC/0R NC/0R 0805 0805 -4V_ESD Mounted PWB A Board (Main Board) (6/9) YAMAHA (IC801) TDA138 AUDIO AMP KLV-20G300A...
  • Page 22 0805 0805 0805 DVSS 100pF/16V 100pF/16V D801 D801 BAV99 BAV99 MSP4440K MSP4440K C874 C874 R849 R849 Q808 Q808 100K 100K MMBT3906 MMBT3906 R847 R847 22uF/16V 22uF/16V AC_ON/OFF Mounted PWB A Board (Main Board) (7/9) Micronas (IC802) MSP4440K AUDIO PROCESSOR KLV-20G300A...
  • Page 23 18K/metal R613 R613 C618 C618 C619 C619 C620 C620 C621 C621 R614 R614 R615 R615 680K/metal 680K/metal 680K/metal 680K/metal 75/1% 75/1% 220pF 220pF 0805 0805 0805 0805 0805 0805 Mounted PWB A Board (Main Board) (8/9) Audio Video I/O KLV-20G300A...
  • Page 24 C229 C220 C220 100uF/16V 100uF/16V R241 R241 100k 100k 10uH/2816710610 10uH/2816710610 1206 1206 0.1uF/100V 0.1uF/100V 220uF/50V 220uF/50V 0805 0805 200R 200R 6.8K 6.8K R239 R239 100k 100k BL_EN1 Mounted PWB A Board (Main Board) (9/9) Power circuit and SW KLV-20G300A...

  • Page 25: Schematics

    4-4 Schematic Mounted PWB G Board (Power Inverter Board) (1/3) KLV-20G300A...
  • Page 26 4-4 Schematic Mounted PWB G Board (Power Inverter Board) (2/3) KLV-20G300A...
  • Page 27 4-4 Schematic Mounted PWB G Board (Power Inverter Board) (3/3) KLV-20G300A...
  • Page 28 113 1% 113 1% 113 1% 113 1% 0.1U 0.1U 0805 0805 0805 0805 3071816731 3071816731 3V3_Keypad C912 C912 C1206 C1206 D9105 D9105 D9106 D9106 D9104 D9104 1206 1206 BAV99 BAV99 BAV99 BAV99 BAV99 BAV99 GND1 GND1 GND2 GND2 KLV-20G300A...
  • Page 29 C9105 C9100 C9100 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 10uF/10V 0.1uF 0.1uF 100pF 100pF 10uF/10V 10uF/10V 0805 0805 0805 0805 0805 0805 0805 0805 0805 0805 0805 0805 3V3_IR D9103 D9103 BAV99 BAV99 IR_DET GND1 GND1 KLV-20G300A...
  • Page 30 CN8103 CN8102 CN8102 L819 L819 120/0603 120/0603 R9107 R9107 1206 1206 R9108 R9108 1206 1206 L820 L820 120/0603 120/0603 C9107 C9107 3071324034 3071324034 3072231000 3072231000 C9108 C9108 C9106 C9106 220pF 220pF EARPHONE OUT 220pF 220pF 0.1uF 0.1uF GND3 GND3 KLV-20G300A...

  • Page 31: A (Main) Board

    4-5.PCB LAYOUT A Board (Main Board) KLV-20G300A...

  • Page 32: G (Power Inverter) Board

    4-5.PCB LAYOUT G Board (Power Inverter Board) KLV-20G300A...
  • Page 33 4-5.PCB Layout H1 Board (Key Board) H3 Board (Earphone Board) H2 Board (IR LED Board) KLV-20G300A...

  • Page 34: Exploded View & Parts List

    Section 5: Exploded View & Parts List ⑰　 ⑭　 ⑬　 ⑪　 ⑥　 ①　 ⑫　 ⑩　 ⑤　 ⑦　 ⑨　 ⑧　 ②　 ⑱　 ⑮　 ⑯　 ③ ④　 KLV-20G300A...
  • Page 35 SONY P/N WISTRON P/N DESCRIPTION BEZEL ASS'Y X-217-869-31 60.3XA02.001 (Bezel, Front Mask, Guide LED, Emblem Sony badge) 3-196-535-01 42.3XA06.001 GUIDE, LED X-217-869-41 60.3XA01.001 STAND ASS'Y 2-668-639-01 6K.3XAMS.001 FOOT, STAND 1-523-010-11 26.14001.A13 FUSE, TIME-LAG (4A/250V) 1-789-757-11 6M.3XAMB.001 MOUNTED PWB A ( MAIN ) 1-789-758-11 56.04060.103...

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