Service Manual
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Website:http://biz.LGservice.com e-mail: http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL FACTORY MODEL: 15LV1R.AUSBZA MODEL: Z15LCD1 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - 1 -
Website:http://biz.LGservice.com e-mail: http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL FACTORY MODEL: 15LV1R.AUSBZA MODEL: Z15LCD1 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - 1 -
Service Manual
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SHEET ...- 2 - CONTENTS CONTENTS ...2 PRODUCT SAFETY ...3 SPECIFICATION ...6 ADJUSTMENT INSTRUCTION ...9 TROUBLE SHOOTING ...11 BLOCK DIAGRAM...15 WIRING DIAGRAM ...17 EXPLODED VIEW ...18 REPLACEMENT PARTS LIST 20 SVC.
SHEET ...- 2 - CONTENTS CONTENTS ...2 PRODUCT SAFETY ...3 SPECIFICATION ...6 ADJUSTMENT INSTRUCTION ...9 TROUBLE SHOOTING ...11 BLOCK DIAGRAM...15 WIRING DIAGRAM ...17 EXPLODED VIEW ...18 REPLACEMENT PARTS LIST 20 SVC.
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... be operated for improvement. 1. Horizontal frequency 8. Application range 1.1 This spec sheet is marked by part number in this spec sheet apply correspondingly to the following each drawing and specification by models 2.4 Specification and performance of each parts are subject to change without notice for about 30 minutes prior to the adjustment. 3.General Specification (TV) No Item 1. Input Voltage 4. Storage Environment Specification RF (NTSC-M), Video, S-Video, Component Video, Graphic (VGA...
... be operated for improvement. 1. Horizontal frequency 8. Application range 1.1 This spec sheet is marked by part number in this spec sheet apply correspondingly to the following each drawing and specification by models 2.4 Specification and performance of each parts are subject to change without notice for about 30 minutes prior to the adjustment. 3.General Specification (TV) No Item 1. Input Voltage 4. Storage Environment Specification RF (NTSC-M), Video, S-Video, Component Video, Graphic (VGA...
Service Manual
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4-3. TV RF Inputs TUNER SIGNAL Receiving System Channel Coverage Tuner VHF Low band VHF High band UHF band IF Frequency Impedance LEVEL NSTC-M NSTC-M ChangHong AF5-U2F11RW AIR CATV 55.25~127.25 55.25~127.25 133.25~361.25 133.25~361.25 367.25~801.25 367.25~801.25 Picture carrier Sound carrier 45.75 MHz 41.25MHz 75 ohm terminated 70dBuV - 8 -
4-3. TV RF Inputs TUNER SIGNAL Receiving System Channel Coverage Tuner VHF Low band VHF High band UHF band IF Frequency Impedance LEVEL NSTC-M NSTC-M ChangHong AF5-U2F11RW AIR CATV 55.25~127.25 55.25~127.25 133.25~361.25 133.25~361.25 367.25~801.25 367.25~801.25 Picture carrier Sound carrier 45.75 MHz 41.25MHz 75 ohm terminated 70dBuV - 8 -
Service Manual
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to activate Multi-channel Television Sound, Stereo or Mono sound. MTS/SAP Press this button to where you can set a time period after the display has disappeared. The TV is physically unplugged. The counter runs from the number of minutes. VOL Press + or - PC To change PC mode (only for Z15LCD1) V-CHIP Press this key to adjust the volume. 0~9/100 To select a TV channel directly PRE-CH To return...
to activate Multi-channel Television Sound, Stereo or Mono sound. MTS/SAP Press this button to where you can set a time period after the display has disappeared. The TV is physically unplugged. The counter runs from the number of minutes. VOL Press + or - PC To change PC mode (only for Z15LCD1) V-CHIP Press this key to adjust the volume. 0~9/100 To select a TV channel directly PRE-CH To return...
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TROUBLE SHOOTING 1. No Power (No LED indicator) No Power Check power cord and NG Plug in power cord and interface OK Check F901, BD901 OK Check IC901 NG Replace F901 or BD901 Check the load NG Replace IC901 or Q901 OK Check T901 NG OK Check D910, D911 NG OK NG Replace F902 or F903 OK NG Check ZD903, ZD901, ZD902 IC902 Replace T901 Replace D910, D911 Check the load Replace ZD903, ZD90, ZD902 IC902 - 11 -
TROUBLE SHOOTING 1. No Power (No LED indicator) No Power Check power cord and NG Plug in power cord and interface OK Check F901, BD901 OK Check IC901 NG Replace F901 or BD901 Check the load NG Replace IC901 or Q901 OK Check T901 NG OK Check D910, D911 NG OK NG Replace F902 or F903 OK NG Check ZD903, ZD901, ZD902 IC902 Replace T901 Replace D910, D911 Check the load Replace ZD903, ZD90, ZD902 IC902 - 11 -
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... Replace I2C communication component OK Check oscillistor NG Replace oscillistor - 12 - No Display (LED indicator green) No display Check the source OK Check LVDS cable OK Check 5V, 12V power OK NG Reset source NG Replace LVDS cable NG Return to "1" Check main board power supply OK NG Check U406 OK Check I2C communication Replace U406 NG Repair I2C communication relative circuit OK Check panel NG Replace panel...
... Replace I2C communication component OK Check oscillistor NG Replace oscillistor - 12 - No Display (LED indicator green) No display Check the source OK Check LVDS cable OK Check 5V, 12V power OK NG Reset source NG Replace LVDS cable NG Return to "1" Check main board power supply OK NG Check U406 OK Check I2C communication Replace U406 NG Repair I2C communication relative circuit OK Check panel NG Replace panel...
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4. Abnormal Display Abnormal display Check the source OK Check signal filter circuit NG Reset source NG Replace the filter or inductance AV, S-video signal component signal OK Repair each relative circuit Check input signal OK Check LVDS cable OK Check panel OK RF signal Check TV system setup NG Replace LVDS cable OK Check TU100 NG Replace panel OK Replace TU100 - 13 -
4. Abnormal Display Abnormal display Check the source OK Check signal filter circuit NG Reset source NG Replace the filter or inductance AV, S-video signal component signal OK Repair each relative circuit Check input signal OK Check LVDS cable OK Check panel OK RF signal Check TV system setup NG Replace LVDS cable OK Check TU100 NG Replace panel OK Replace TU100 - 13 -
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1. Main Board BLOCK DIAGRAM PHILIPS LOC1 TV Block Diagram PC D-sub HD input PC H/V Input Switch 4052 Y/PR/PB Video H/V Output Select H/V Input RGB PI5V 330W PI5V 330W RGB Gain Input VIDEO 1 S-VIDEO ANT INT IF Tuner Philips 1336MK SawFilter /VF45A3M SawFilter /AF45A3M Video IF Audio IF SDA/SCL Philips LOC1 TDA15501E DC 12V DC 5V Power Internal AC 100~220 Input Inverter For TV Flash SST39V F020B...
1. Main Board BLOCK DIAGRAM PHILIPS LOC1 TV Block Diagram PC D-sub HD input PC H/V Input Switch 4052 Y/PR/PB Video H/V Output Select H/V Input RGB PI5V 330W PI5V 330W RGB Gain Input VIDEO 1 S-VIDEO ANT INT IF Tuner Philips 1336MK SawFilter /VF45A3M SawFilter /AF45A3M Video IF Audio IF SDA/SCL Philips LOC1 TDA15501E DC 12V DC 5V Power Internal AC 100~220 Input Inverter For TV Flash SST39V F020B...
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TPV Part No. 010 EBU32313801 CBPF5A6KCHLTP 020 EBU32326601 PWTV1542AUB1P 030 EBR32314501 TUPFAAAP 040 EBR32315201 IRPFAADP 050 EBR32315401 KEPF5A2P 060 EBR32316301 HJPF5A2P 070 6410TUW008A 089T402A15N IS ... 453500 KL 170 EAB32239201 078T 453500 KR Desc. MAIN BOARD POWER BOARD TUNER BOARD IR BOARD KEY BOARD HJPF POWER CORD CPT 15" 010 PANEL BKT-PANEL-LEFT BAK-PANEL RIGHT FOR DAO BACK COVER ASS'Y BEZEL ASS'Y STAND ASS'Y BOTTOM SHIELD SHIELD SPK 4OHM 2W KUIDA SPK 4OHM 2W KUIDA Q'TY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 19 - EXPLODED VIEW PARTS LIST No. LG Part No.
TPV Part No. 010 EBU32313801 CBPF5A6KCHLTP 020 EBU32326601 PWTV1542AUB1P 030 EBR32314501 TUPFAAAP 040 EBR32315201 IRPFAADP 050 EBR32315401 KEPF5A2P 060 EBR32316301 HJPF5A2P 070 6410TUW008A 089T402A15N IS ... 453500 KL 170 EAB32239201 078T 453500 KR Desc. MAIN BOARD POWER BOARD TUNER BOARD IR BOARD KEY BOARD HJPF POWER CORD CPT 15" 010 PANEL BKT-PANEL-LEFT BAK-PANEL RIGHT FOR DAO BACK COVER ASS'Y BEZEL ASS'Y STAND ASS'Y BOTTOM SHIELD SHIELD SPK 4OHM 2W KUIDA SPK 4OHM 2W KUIDA Q'TY 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - 19 - EXPLODED VIEW PARTS LIST No. LG Part No.
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...'Y STAND ASS'Y CPT 15" 010 PANEL MAIN BOARD POWER BOARD BKT FOR AC AND POWER SW CARTON PE BAG BOTTOM SHIELD SHIELD TUNER BOARD SMALL TAPE Kensington lock VESA BRACKET SCREW BACK COVER SPK 4OHM 2W KUIDA SPK 4OHM 2W KUIDA SCREW SCREW SCREW IR BOARD KEY BOARD LENS POWER IR LENS KEY COVER BUTTON FUNC - 20 - REPLACEMENT PARTS LIST Location Part No. for LG SCREW SCREW SCREW SCREW M3X6 SCREW M3X6 SCREW M3X6 SCREW SCREW SCREW SCREW T3X6...
...'Y STAND ASS'Y CPT 15" 010 PANEL MAIN BOARD POWER BOARD BKT FOR AC AND POWER SW CARTON PE BAG BOTTOM SHIELD SHIELD TUNER BOARD SMALL TAPE Kensington lock VESA BRACKET SCREW BACK COVER SPK 4OHM 2W KUIDA SPK 4OHM 2W KUIDA SCREW SCREW SCREW IR BOARD KEY BOARD LENS POWER IR LENS KEY COVER BUTTON FUNC - 20 - REPLACEMENT PARTS LIST Location Part No. for LG SCREW SCREW SCREW SCREW M3X6 SCREW M3X6 SCREW M3X6 SCREW SCREW SCREW SCREW T3X6...
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... HEAT SINK HEAT SINK SCREW M3x8 POWER BOARD TUNER BOARD PCB IR BOARD PCB KEY BOARD PCB Earphone board PCB POWER-BOARD PCB CONN W TO B 12P*2 P*2.0 4504-2 10 PLUG B10E-XHA/JST E10B-XHA/ WAFER...JACK AUDIO IN WAFER 3P RIGHT ANGLE WAFER 5P RIGHT ANELE PI PHONE JACK for TPV BEZEL -only cabinet, without IC &others 0M1T1730 8128 BEZEL PLATE Q90T6334 1 RUBBER FOOT 090T6320 1 BAK-STAND 0M1T1730 8128 SCREW PW1542AUB1AIP HJPF 715T1747 1D CABLE TIE 715T2140 B STAND ASS'Y-cabinet & stand, without wire & PCB 715T1914 1 BASE... 1 0M1T1730 8128 Description Location Part No. Location Part No.
... HEAT SINK HEAT SINK SCREW M3x8 POWER BOARD TUNER BOARD PCB IR BOARD PCB KEY BOARD PCB Earphone board PCB POWER-BOARD PCB CONN W TO B 12P*2 P*2.0 4504-2 10 PLUG B10E-XHA/JST E10B-XHA/ WAFER...JACK AUDIO IN WAFER 3P RIGHT ANGLE WAFER 5P RIGHT ANELE PI PHONE JACK for TPV BEZEL -only cabinet, without IC &others 0M1T1730 8128 BEZEL PLATE Q90T6334 1 RUBBER FOOT 090T6320 1 BAK-STAND 0M1T1730 8128 SCREW PW1542AUB1AIP HJPF 715T1747 1D CABLE TIE 715T2140 B STAND ASS'Y-cabinet & stand, without wire & PCB 715T1914 1 BASE... 1 0M1T1730 8128 Description Location Part No. Location Part No.
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Location Part No. for TPV FB1 071T 56U601 FB901 095T 90 23 JUMPER J102 088T 30214K J101 088T 78 13 3C J103 088T 78 1R CL J820 ... J808 095T 90 23 J807 095T 90 23 J806 095T 90 23 J805 095T 90 23 Description BEAD 600 OHM TIN COATED PHONE JACK AV-S-01-W RCA JACK 1P RED CHIP 0OHM 1/10W CHIP 0OHM 1/10W TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN...
Location Part No. for TPV FB1 071T 56U601 FB901 095T 90 23 JUMPER J102 088T 30214K J101 088T 78 13 3C J103 088T 78 1R CL J820 ... J808 095T 90 23 J807 095T 90 23 J806 095T 90 23 J805 095T 90 23 Description BEAD 600 OHM TIN COATED PHONE JACK AV-S-01-W RCA JACK 1P RED CHIP 0OHM 1/10W CHIP 0OHM 1/10W TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN COATED TIN...
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ON_OFF IIC_SEL R560 2k +5V R541 4.7k D410 1N4148 D409 1N4148 R534 R535 1k 1k 1 Q418 PMBS3904 3 2 +5V R540 4.7k 3 R552 22K 1 Q415 PMBS3904 2 SDA VSDA SCL VSCL R522 100 R551 100 +5V C491 100P FB416 B0805/0 ISP_SCL UPDATE POWER SUPPLY FROM +5V_SW TO +5V ISP_SDA U407 74HC4052D 12 14 15 X0 X1 11 X2 X3 1 5 2 Y0 Y1 4 Y2 Y3 10 9 A B 6 EN 7 16 VEE VDD X 13 3 Y 8 GND AOC (Top Victory) Electronics Co., Ltd. Title IIC SWITCH Size A4 Document Number 03 Date: Monday, April 24, 2006 Sheet 3 of Rev 1 14 - 38 -
ON_OFF IIC_SEL R560 2k +5V R541 4.7k D410 1N4148 D409 1N4148 R534 R535 1k 1k 1 Q418 PMBS3904 3 2 +5V R540 4.7k 3 R552 22K 1 Q415 PMBS3904 2 SDA VSDA SCL VSCL R522 100 R551 100 +5V C491 100P FB416 B0805/0 ISP_SCL UPDATE POWER SUPPLY FROM +5V_SW TO +5V ISP_SDA U407 74HC4052D 12 14 15 X0 X1 11 X2 X3 1 5 2 Y0 Y1 4 Y2 Y3 10 9 A B 6 EN 7 16 VEE VDD X 13 3 Y 8 GND AOC (Top Victory) Electronics Co., Ltd. Title IIC SWITCH Size A4 Document Number 03 Date: Monday, April 24, 2006 Sheet 3 of Rev 1 14 - 38 -
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Title Size A3 Date: Document Number 04 Monday, April 24, 2006 PC INPUT Sheet 4 Rev 1 of 14 - 39 - ZD401 5.6V 1 2 2 3 1 16 VGA-V +5V_SW D401 BAV70 R547 2.7k ZD402 5.6V R526 R525...3 4 M24C02WMN6 C470 100n REF REF 2 1 REF CN105 DB15 15 14 13 12 11 17 ISP_SDA ISP_SCL Pin5 change to GND,IIC_SEL change to Pin 11 VGA-V 2 10 ZD407 1 5 5.6V 9 4 8 TXD REF 3 7 2 6 1 REF AVI_DET C469 0....VGA_TV_SW Ext_Hsync_sel U302 10 0 91 2 3 1 D405 REF BAV99 REF R523 FB413 R544 B0805/0 75 UPDATE Jan-09-06 FB415 C474 100P REF BA792 REF +5V +5V AVI_DET 0 R549 0 R550 REF REF...
Title Size A3 Date: Document Number 04 Monday, April 24, 2006 PC INPUT Sheet 4 Rev 1 of 14 - 39 - ZD401 5.6V 1 2 2 3 1 16 VGA-V +5V_SW D401 BAV70 R547 2.7k ZD402 5.6V R526 R525...3 4 M24C02WMN6 C470 100n REF REF 2 1 REF CN105 DB15 15 14 13 12 11 17 ISP_SDA ISP_SCL Pin5 change to GND,IIC_SEL change to Pin 11 VGA-V 2 10 ZD407 1 5 5.6V 9 4 8 TXD REF 3 7 2 6 1 REF AVI_DET C469 0....VGA_TV_SW Ext_Hsync_sel U302 10 0 91 2 3 1 D405 REF BAV99 REF R523 FB413 R544 B0805/0 75 UPDATE Jan-09-06 FB415 C474 100P REF BA792 REF +5V +5V AVI_DET 0 R549 0 R550 REF REF...
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...REMOTE S_CTL Ext_Hsync_sel DIG1 ADD PANELVDDD_EN CONTROLL OCT-31-05 PanelVDD_EN R240 R249 R252 C301 100 100 100 0.22uF R247 100 D_DECT ASTB R271 1K R276 100 +3.3Vstb R301 10K +3.3Vstb FB220 600 R302 ON_OFF 10K SCL SDA WP R270 1K R250 100 R251 100 C299 0.22uF Reset...NC R263 10K R245 100 MUTE KEYB +1.8V_1 FB218 600 C285 0.1uF +3.3Vstb +5V DIG2 FB116 FB117 Change power B1206/0 NC follow EEPROM VCC C237 0.22u R290 R296 R297 U403 AT24C32 DIG1 nc 3.3k 3.3k ...DECODER-D Size Document Number B 08 Date: Monday, April 24, 2006 Sheet 8 of Rev 1 14 - 43 -
...REMOTE S_CTL Ext_Hsync_sel DIG1 ADD PANELVDDD_EN CONTROLL OCT-31-05 PanelVDD_EN R240 R249 R252 C301 100 100 100 0.22uF R247 100 D_DECT ASTB R271 1K R276 100 +3.3Vstb R301 10K +3.3Vstb FB220 600 R302 ON_OFF 10K SCL SDA WP R270 1K R250 100 R251 100 C299 0.22uF Reset...NC R263 10K R245 100 MUTE KEYB +1.8V_1 FB218 600 C285 0.1uF +3.3Vstb +5V DIG2 FB116 FB117 Change power B1206/0 NC follow EEPROM VCC C237 0.22u R290 R296 R297 U403 AT24C32 DIG1 nc 3.3k 3.3k ...DECODER-D Size Document Number B 08 Date: Monday, April 24, 2006 Sheet 8 of Rev 1 14 - 43 -
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RSN5 RSN6 RSN7 RSN8 RSN9 RSN0 RSN1 RSN2 RSN3 RSNR5SN4 RSN6 RSN7 RSN8 RSN9 RSN0 RSN1 RSN2 RSN3 RSN4 PANEL_VDD CN113 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 12*2PIN/2.0mm C454 + 470uF/16V C445 100n R429 0R change from 10 uF to 470 uF Mar-23-06 RSP0 RSP1 RSP2 RSP3 RSP4 RSP0 RSP1 RSP2 RSP3 RSPR4 SP5 RSP6 RSP7 RSP8 RSP9 RSP5 RSP6 RSP7 RSP8 RSP9 - 46 - AOC (Top Victory) Electronics Co., Ltd. Title Size A3 Date: Document Number 12 Monday, April 24, 2006 PANEL INTERFACE Rev 1 Sheet 1 of 4
RSN5 RSN6 RSN7 RSN8 RSN9 RSN0 RSN1 RSN2 RSN3 RSNR5SN4 RSN6 RSN7 RSN8 RSN9 RSN0 RSN1 RSN2 RSN3 RSN4 PANEL_VDD CN113 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 12*2PIN/2.0mm C454 + 470uF/16V C445 100n R429 0R change from 10 uF to 470 uF Mar-23-06 RSP0 RSP1 RSP2 RSP3 RSP4 RSP0 RSP1 RSP2 RSP3 RSPR4 SP5 RSP6 RSP7 RSP8 RSP9 RSP5 RSP6 RSP7 RSP8 RSP9 - 46 - AOC (Top Victory) Electronics Co., Ltd. Title Size A3 Date: Document Number 12 Monday, April 24, 2006 PANEL INTERFACE Rev 1 Sheet 1 of 4
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Title Size A3 Date: Document Number 13 Monday, April 24, 2006 POWER Sheet 13 of...600 +8V R135 1.2K + C159 0.1u C152 100u/16V REF RESET DECDIG R108 10k C148 + 10u D101 DIG1 BAS16 NC R114 15K...change from 10 uF to 470 uF Mar-23-06 REF R136 6.2K REF REF +12V +5V +3.3Vstb FB102 NC FB101 B1206/0 FB103 NC +3.3Vs_SW: For LOC1-SCALAR&Flash&Panel&Emluator +1.8VS_SW: For LOC1-SCALAR +8V: For TDA9178(Picture...Q101 AO4411 1 2 3 4 S S S G 8 D D D 7 6 5 D PANEL Power Q107 Control PMBS3904 3 2 REF R103 10k REF GND1 GND2 GND3 GND4 GND5 TUNERGND REF DIG1 DIG2 DIG3 DIG4 ...
Title Size A3 Date: Document Number 13 Monday, April 24, 2006 POWER Sheet 13 of...600 +8V R135 1.2K + C159 0.1u C152 100u/16V REF RESET DECDIG R108 10k C148 + 10u D101 DIG1 BAS16 NC R114 15K...change from 10 uF to 470 uF Mar-23-06 REF R136 6.2K REF REF +12V +5V +3.3Vstb FB102 NC FB101 B1206/0 FB103 NC +3.3Vs_SW: For LOC1-SCALAR&Flash&Panel&Emluator +1.8VS_SW: For LOC1-SCALAR +8V: For TDA9178(Picture...Q101 AO4411 1 2 3 4 S S S G 8 D D D 7 6 5 D PANEL Power Q107 Control PMBS3904 3 2 REF R103 10k REF GND1 GND2 GND3 GND4 GND5 TUNERGND REF DIG1 DIG2 DIG3 DIG4 ...
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... 1206 ZD901 HZ13B ZD902 HZ5.1 TO CN901 1 2 3 ! Title 1.POWER OUTPUT 12V & 5 V Size Document Number Rev B PWTV1542AUB1P B Date: Thursday, April 20, 2006 Sheet 1 of... 2 - 49 - R901 680K 1/4W ! Q901 1 2SK3469 ! F902 0 OHM +12V C919 0.1uF/0805 ! DB901 U4KB80R +4 2 3 1- 3 2 ! C902 102PF/250V ! R903 680K 1/4W ! SWITCH...Co., Ltd. F901 2A 250V 3 2 1 ! R902 680K 1/4W ! POWER BOARD PARTS ! C901 102PF/250V 3 2 ! CN901 AC WIRE 3 4 2 1 R920...
... 1206 ZD901 HZ13B ZD902 HZ5.1 TO CN901 1 2 3 ! Title 1.POWER OUTPUT 12V & 5 V Size Document Number Rev B PWTV1542AUB1P B Date: Thursday, April 20, 2006 Sheet 1 of... 2 - 49 - R901 680K 1/4W ! Q901 1 2SK3469 ! F902 0 OHM +12V C919 0.1uF/0805 ! DB901 U4KB80R +4 2 3 1- 3 2 ! C902 102PF/250V ! R903 680K 1/4W ! SWITCH...Co., Ltd. F901 2A 250V 3 2 1 ! R902 680K 1/4W ! POWER BOARD PARTS ! C901 102PF/250V 3 2 ! CN901 AC WIRE 3 4 2 1 R920...