Mitsubishi Electric LT-3280 Service Manual

Hide thumbs Also See for LT-3280:

Owner's manual (124 pages)

Quick setup instructions (4 pages)

Table Of Contents

Table of Contents

Quick Links

Download this manual

MITSUBISHI ELECTRIC

CAUTION:

Before servicing this chassis, it is important that the service person read the "SAFETY PRECAUTIONS" and

"PRODUCT SAFETY NOTICE" contained in this manual.

• Power

: AC 120V, 60Hz

[LT-3280D] 200W

[LT-3780D] 300W

Standby <5W

• LCD Panel

: Size/Resolution -

[LT-3280D] 32" diagonal, 16:9 / 1366x768

[LT-3780D] 37" diagonal, 16:9 / 1920x1080

: Pixel Pitch -

[LT-3280D] 0.519mm x 0.173mm x RGB

[LT-3780D] 0.4275mm x 0.1425mm x RGB

• Input Jacks

: MonitorLink™ Audio/Video - HDMI™

: MonitorLink™ Control - RS-232C

: PC Video - VGA /Mini D-sub 15 pin

: PC Audio - 3.5mm Mini-Jack

• Speakers

: 2 Way Bass Reflex Left & Right (2 X 5W)

MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.

Ser

Ser vice

Ser

Manual

The LT-3280 includes the LT-3280D, monitor and HD-4001, receiver/controller.

The LT-3780 includes the LT-3780D, monitor and HD-4001, receiver/controller.

This manual covers the LT-3280D and LT-3780D, monitors.

For the receiver/controller, see the HD-4001 Service Manual.

SPECIFICATIONS

• Weight and dimensions shown are approximate.

• Design specifications are subject to change without notice.

• HDMI™ is a trademark of HDMI Licensing, LLC

9351 Jeronimo Road, Irvine, CA 92618-1904

vice

LIQUID CRYSTAL DISPLAY TELEVISION

LT-3280 (LT-3280D)

LT-3780 (LT-3780D)

• Ca binet Dim ensions / W e ight

LT-3280D

W ith Stand: Height

W idth

25.4"

W /O Stand: Height

W idth

22.9"

LT-3780D

W ith Stand: Height

W idth

28.5"

W /O Stand: Height

W idth

26.0"

2 0 0 5

Depth

W eight

32.4"

12.8"

68.0 lbs

Depth

W eight

32.4"

5.0"

44.3 lbs

Depth

W eight

37.3"

12.8"

80.0 lbs

Depth

W eight

37.3"

5.3"

57.3 lbs

Table of Contents

Troubleshooting

Summary of Contents for Mitsubishi Electric LT-3280

Page 1 LIQUID CRYSTAL DISPLAY TELEVISION LT-3280 (LT-3280D) LT-3780 (LT-3780D) The LT-3280 includes the LT-3280D, monitor and HD-4001, receiver/controller. The LT-3780 includes the LT-3780D, monitor and HD-4001, receiver/controller. This manual covers the LT-3280D and LT-3780D, monitors. For the receiver/controller, see the HD-4001 Service Manual.
Page 3: Table Of Contents
TROUBLESHOOTING Power Troubleshooting ........................35 Video Troubleshooting ........................38 Audio Troubleshooting ........................40 Remote Control Troubleshooting ....................42 Front Switch Troubleshooting ......................43 REPLACEMENT PARTS LT-3280 Replacement Parts List ....................44 LT-3780 Replacement Parts List ....................45 SCHEMATICS Page 3...
Page 4 MODELS: LT-3280D/LT-3780D Page 4...
Page 5: Product Safety Notice & Safety Precautions
MODELS: LT-3280D/LT-3780D PRODUCT SAFETY NOTICE Many electrical and mechanical parts in television receivers have special safety related characteristics. These character- istics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have special safety characteristics are identified in this service manual.
Page 6 MODELS: LT-3280D/LT-3780D Page 6...
Page 7: Disassembly & Panel Replacement
MODELS: LT-3280D/LT-3780D DISASSEMBLY & PANEL REPLACEMENT PROCEDURE 1. REMOVE AV1, AV2, DTV & STAND COVERS. AV1-COVER DTV-COVER AV2-COVER STAND-FRAME-COVER 2. PLACE SET FACE DOWN ON A SOFT CUSHION, WITH THE STAND HANGING OVER THE EDGE OF THE TABLE. 3. REMOVE STAND-KIT. S20 ：...
Page 8 MODELS: LT-3280D/LT-3780D 4. REMOVE BACK COVER KIT. SCERW WITH CABLE-CLAMP 2 POINTS F07:CABLE-CLAMP S3：SCREW BH M4*10 S5 ： SCREW BH 4*16TP-P 14 PCS S14：SCREW FPH M3*8 S10 ： SCREW IH M4*8 SCREW WITH STAY-STAND S3 ： SCREW BH M4*10 Page 8...
Page 9 MODELS: LT-3280D/LT-3780D 5. REMOVE WALL MOUNT BRACKET S9：SCREW PHW M3*6 S16：SCREW BH+SW M6*12 REMOVE WALL-MOUNT-BKT, WHILE DEPRESSING THE HANGING PART OF POWER-BKT BELOW. LT-3780D LT-3280D S5 ： SCREW BH 4*16TP-P S8 ： SCREW BH 4*12TP-P 6. REMOVE SHIELD-POWER-SUB & SHIELD-CASEMAIN. SHIELD-POWER-SUB S9 ：...
Page 10 MODELS: LT-3280D/LT-3780D 7A. (LT-3280D) (NOT NECESSARY FOR PANEL REPLACEMENT) REMOVE: a. PLATE-MAIN-SIDE b. SERVICE-KIT c. PLATE-MAIN-BOTTOM d. PLATE-POWER-BOTTOM SERVICE-KIT (SA-PWB-SERVICE) PLATE-POWER-BOTTOM PLATE-MAIN-SIDE S9 ： SCREW PHW M3*6 PLATE-MAIN-BOTTOM PLATE-POWER-BOTTOM S11 ： SCREW IH M3*6 S15 ： SCREW_HH+SW _UNC4#-40*7_H5 Page 10...
Page 11 MODELS: LT-3280D/LT-3780D 7B. (LT-3780D) REMOVE: a. PLATE-MAIN-SIDE b. SERVICE-KIT c. PLATE-MAIN-BOTTOM (NOT NECESSARY FOR PANEL REPLACEMENT) PLATE-POWER-BOTTOM SERVICE-KIT (SA-PWB-SERVICE) PLATE-POWER-BOTTOM NOT NECESSARY FOR PANEL REPLACEMENT S9 ： SCREW PHW M3*6 PLATE-MAIN-SIDE PLATE-MAIN-BOTTOM PLATE-POWER-BOTTOM S11 ： SCREW IH M3*6 S15 ： SCREW_HH+SW _UNC4#-40*7_H5 Page 11...
Page 12 MODELS: LT-3280D/LT-3780D 8. (LT-3780D ONLY) REMOVE SHIELD-INVERTER S5：SCREW BH 4*16TP-P S9 ： SCREW PHW M3*6 ITEM 144: AL-TAPE It sticks on the position of a figure. Page 12...
Page 13 MODELS: LT-3280D/LT-3780D 9. REMOVE FUNCTION-KEY-KIT S6 ： SCREW BH 3*12 TP-P 10. REMOVE IR-KIT S4 ： SCREW BH 3*8 TP-P 11. REMOVE SA-PWB-LED S4：SCREW BH 3*8 TP-P Page 13...
Page 14 MODELS: LT-3280D/LT-3780D 12. REMOVE POWER-KIT & SPEAKER CONNECTOR SPEAKER-CONNECTER S4：SCREW BH 3*8 TP-P POWER-KIT S17：SCREW PH+SW+TW M3*6 13A. (LT-3280D) (NOT NECESSARY FOR PANEL REPLACEMENT) REMOVE: a. A-PWB-MAIN 2 b. SA-PWB-POWER c. A-PWB-POWER-SUB2 A-PWB-MAIN_2 SA-PWB-POWER A-PWB-POWER-SUB2 13 PCS 8 PCS 5 PCS Page 14...
Page 15 MODELS: LT-3280D/LT-3780D 13B. (LT-3780D) REMOVE: a. A-PWB-MAIN 2 b. SA-PWB-POWER (NOT NECESSARY FOR PANEL REPLACEMENT) c. A-PWB-POWER-SUB2 S17：SCREW PH+SW+TW M3*6 A-PWB-MAIN_1 SA-PWB-POWER A-PWB-POWER-SUB1 13 PCS NOT NECESSARY FOR PANEL 7 PCS REPLACEMENT 8 PCS Page 15...
Page 16 MODELS: LT-3280D/LT-3780D 14. (LT-3780D) REMOVE PANEL_BKT S5 ： SCREW BH 4*16TP-P REMOVE CNF1/CNF2/CN1/CN2-LEAD to the panel side not to be caught by PANEL-BKT. S2 ： SCREW BH M4*5.5 S2 ： SCREW BH M4*5.5 S5：SCREW BH 4*16TP-P ATTACH AL-TAPE Page 16...
Page 17 MODELS: LT-3280D/LT-3780D 15A. (LT-3280D) REMOVE FRONT-KIT & SPEAKER S8 ： SCREW BH 4*12TP-P Screw with GND-W ire Screw with GND-Wire (50mm). (90mm). 15B. (LT-3780D) REMOVE FRONT-KIT & SPEAKER CAUTION: UP AND DOW N DIRECTION OF PANEL IS AGAINST LABEL AND ARROW MARK OF PANEL. S5 ：...
Page 18 MODELS: LT-3280D/LT-3780D 16. (LT-3280D) REMOVE PANEL_BKT S1 ： SCREW PH M4*12 REMOVE CNF1/CN1/CN2-LEAD first and push in under PANEL-BKT for easy removal. CAUTION: UP AND DOWN DIRECTION OF PANEL IS AGAINST LABEL AND S2 ： SCREW BH M4*5.5 Top & Bottom is same. ARROW MARK OF PANEL.
Page 19 MODELS: LT-3280D/LT-3780D 18. (LT-3780D) REMOVE SUPPORT-PANEL-BKT-RIGHT, LEFT, TOP, BOT- Left & Right is same. S2 ： SCREW BH M4*5.5 Bottom & Top is same. S2：SCREW BH M4*5.5 Page 19...
Page 20 MODELS: LT-3280D/LT-3780D 19. (LT-3780D) ATTACH AL-TAPE AT DRIVE-UNIT OF PANEL ITEM 141: AL-TAPE 20X250 1Q'ty ITEM 132:Insulating- tape10X70 The electrode of a connector is insulated. ITEM 142: AL-TAPE 20X140, 2Q'ty ITEM 145: Alumi-tape 40X140, 1Q'ty Shield ITEM 144:Alumi-tape 20X with CNF1,CNF2. 45, 1Q'ty ITEM 141: Alumi-tape :20X250, 1Q'ty Drive-unit and Panel-outer should be grounded.
Page 21 MODELS: LT-3280D/LT-3780D 20. REMOVE FUNCTION-KEY-KIT S4：SCREW BH 3*8 TP-P 3 PCS 21. REMOVE IR-KIT REVERSE SIDE S17 ： SCREW PH+SW+TW M3*6 3 PCS SA-PWB-IR SHIELD-IR-TOP SHIELD-IR-BOTTOM Page 21...
Page 22 MODELS: LT-3280D/LT-3780D 22. REMOVE SERVICE-KIT S9 ： SCREW PHW M3*6 2 PCS After the projection at the right of COVER is inserted in the hole of PLATE, screw LEFT SIDE. S11 ： SCREW IH M3*6 S15：SCREW_HH+SW _UNC4#-40*7_H5 SA-PWB-SERVICE COVER-SERVICE PLATE-SERVICE Page 22...
Page 23: 3280 Wire Dressing
MODELS: LT-3280D/LT-3780D WIRING LAYOUT: LT-3280DD Page 23...
Page 24: 3780 Wire Dressing
MODELS: LT-3280D/LT-3780D WIRING LAYOUT: LT-3780DD Page 24...
Page 25: Initial Setup
MODELS: LT-3280D/LT-3780D Initial Setup A. Option Menu Setup Follow the steps below for the initial set-up: 1. Disconnect the HD-4001. 2. Place the Remote control in the “TV” layer. 3. Select the "MENU" display by pressing the "TV MENU" button once. 4.
Page 26 MODELS: LT-3280D/LT-3780D Magenta Yellow Perfect Color Green Cyan Blue Magenta ADVANCED FEATURES Yellow Color View Green Cyan Blue PC Power Save Video Mute Page 26...
Page 27: Circuit Explanations
It explains the video circuits of LT-3780,LT-3280(Model name of display side only : LT-3780D,LT-3280D). It corresponds to various inputs (PC, Monitor Link A/V Input). It explains the composition and its function of an video circuit.
Page 28 MODELS: LT-3280D/LT-3780D 1-2. Video input circuit of Monitor Link A/V Input In Monitor Link A/V Input, it is inputted into IC400 of the signal processing IC via Following IC. (H)IC500 : HDMI-Receiver IC ((SII9993CTG100 : SiliconImage) This IC uses to receive and correspond the differential signal. This IC corresponds not only HDMI input but also DVI input(TMDS interface) .
Page 29 Impedance : 8+/-1.2 ohms Compact sound 2 way bass reflex speaker box. (Refer to an attached “Audio block diagram of LT-3780, LT-3280”, regarding as the flow of audio signal.) 2-1. Audio process circuits (M)IC301 : Audio processor IC (MSP3440G : Micronas) This models are used the MSP3440G as the audio processor.
Page 30 MODELS: LT-3280D/LT-3780D 3 . 3 . 3 . 3 . 3 . Power circuit Power circuit Power circuit Power circuit Power circuit For power supply of LT-3280D and LT-3780D, there are the power supply of “always on” and “ON/OFF” with a control signal.(Refer to BLOCK POWER.pdf) Power Voltage...
Page 31 MODELS: LT-3280D/LT-3780D 4 . 4 . 4 . 4 . 4 . Protection Circuit Protection Circuit Protection Circuit Protection Circuit Protection Circuit LT-3280D and LT-3780D has two protection circuits and some fuses. If the protection circuits work, The LCD turns to stand-by mode. The protection operation can be confirmed by the blinking of the blue power LED.
Page 32: Block Diagrams
LT-3780/LT-3280 BLOCK-DIAGRAM PWB-MAIN PWB-CONTROL PWB-SERVICE Writing Writing IC701 RESET IC702 IC9010 X700 IC700 LC08 (D3 3V) HD64F2437FV PWB-POWER-SUB SHORT1 / AC_OFF PWB-POWER SHORT2 (MAIN_CPU) PSAVE1 PSAVE2 RELAY(37inch only) 18V,P5V, PSAVE2.5 IC9020 IC9040 IC9030 IC9050 AMPVCC, IC9B5 T9A1 (AD3 3V) (A1 8V)
Page 33 LT-3780/LT-3280 VIDEO BLOCK-DIAGRAM Analog signal Digital signal Differential signal IC403 (TMDS) Differential signal (DDR-SDRAM) (LVDS) IC501 EEP2K IC500 J500 SiI9993CTG HDMI (HDMI_Rx) To PANEL (LVDS) IC400 Gm1601 (Scaler & Video processor with CPU) IC203 IC2A0 IC2A1 J200 AD9888KSZ-170 M66471FP SiI1160CU...
Page 34 AUDIO CIRCUIT BLOCK-DIAGRAM for LT-3780/LT-3280 PC AUDIO IN (J304) MP7720DS-Z (IC380) AUDIO Processor MUTE_MAIN AUDIO DAC MSP3440G(IC301) HDMI receiver MonitorLink (IC302) (IC500) (J500) CS4334-KSZ SiI9993CTG MP7720DS-Z (IC370) MUTE_MAIN 5V_SCL 5V_SDA MUTE Circuit (Q301~Q304)
Page 35: Troubleshooting
MODELS: LT-3280D/LT-3780D Troubleshooting 1 . 1 . 1 . 1 . 1 . Power failure Power failure Power failure Power failure Power failure (1)POWER is turned off. (1)POWER is turned off. (1)POWER is turned off. (1)POWER is turned off. (1)POWER is turned off. Connect the Power plug and turn on the main Power switch (Front switch or remote switch).
Page 36 MODELS: LT-3280D/LT-3780D (A) In case of the POWER-LED blinking. (A) In case of the POWER-LED blinking. (A) In case of the POWER-LED blinking. (A) In case of the POWER-LED blinking. (A) In case of the POWER-LED blinking. ☆Short1 mode: The POWER-LED blinking is 1 time within a cycle. CN1 and CN2 harness are removed.
Page 37 MODELS: LT-3280D/LT-3780D (B) In case of the POWER-LED lighting (B) In case of the POWER-LED lighting (B) In case of the POWER-LED lighting (B) In case of the POWER-LED lighting (B) In case of the POWER-LED lighting Is the back-light on? Connect the harness correctly.
Page 38: Video Troubleshooting
MODELS: LT-3280D/LT-3780D 2. No picture displayed and picture errors. 2. No picture displayed and picture errors. 2. No picture displayed and picture errors. 2. No picture displayed and picture errors. 2. No picture displayed and picture errors. Note ) It applies when there is no screen display or an unusual screen is outputted, although 24V(Voltage between pin4(GND) and pin6(24V) of Connecter-PC) from PWB-POWER is outputted normally and the back light is turned on.
Page 39 MODELS: LT-3280D/LT-3780D 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only 2-2.
Page 40: Audio Troubleshooting
MODELS: LT-3280D/LT-3780D 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3. No audio output generated. 3-1. No all audio output generated. 3-1. No all audio output generated. 3-1. No all audio output generated. 3-1.
Page 41 MODELS: LT-3280D/LT-3780D 3-2. 3-2. 3-2. 3-2. 3-2. No each(L or R) of audio output generated. No each(L or R) of audio output generated. No each(L or R) of audio output generated. No each(L or R) of audio output generated. No each(L or R) of audio output generated. Enter audio input signal.
Page 42: Remote Control Troubleshooting
MODELS: LT-3280D/LT-3780D 4. Other faults 4. Other faults 4. Other faults 4. Other faults 4. Other faults Notes) It considers the case where there are problems except 1, 2, 3. 4-1. Remote control is not effective. 4-1. Remote control is not effective. 4-1.
Page 43: Front Switch Troubleshooting
MODELS: LT-3280D/LT-3780D 4-2. Button switch is not effective. 4-2. Button switch is not effective. 4-2. Button switch is not effective. 4-2. Button switch is not effective. 4-2. Button switch is not effective. Is the following harness connected correctly? Poor harness connection or ・...
Page 44: Replacement Parts Lt-3280 Replacement Parts List
510-322010-021 PWB-CONNECT (LT-3280/LT-3780) 510-322011-011 PWB-CONTROL (LT-3280/LT-3780) 510-322008-011 PWB-IR (LT-3280/LT-3780) 510-322009-011 PWB-LED (LT-3280/LT-3780) 510-322007-011 PWB-MAIN (LT-3280) (T/A REQ) 185-015001-101 PWB-P SUB2 (AC/DC 150 W)(LT3280) T/A REQ 185-023002-101 PWB-POWER SUPPLY(230W)(LT3280) T/A REQ 510-322012-011 PWB-SERVICE BOARD (LT-3280/LT-3780) I/QR LT3280 QUICK REFERENCE LT3280/LT3780 290P118020...
Page 45: 3780 Replacement Parts List
PWB-LED (LT-3280/LT-3780) 510-372001-011 PWB-MAIN (LT-3780) (T/A REQ) 185-021001-101 PWB-P SUB1 (210W) (LT3780) T/A REQ 185-023003-101 PWB-POWER-SUPPLY(230W)(LT3780) T/A REQ 510-322012-011 PWB-SERVICE BOARD (LT-3280/LT-3780) I/QR LT3780 QUICK REFERENCE LT3280/LT3780 154-080801-101 SPEAKER 10W 8R (2 EA) 200-370021-0101 STAND-BASE PLASTIC 220-000004-011 STAND-BASE RUBBER (6 pcs/PKG)
Page 46 MODELS: LT-3280D/LT-3780D Page 46...
Page 47 32inch(LT-3280D) 37inch(LT-3780D) SERVICE MAIN POWER P-SUB2 SERVICE MAIN POWER P-SUB1 RXD1 RXD1 RXD1 BLON BLON RXD1 RXD1 RXD1 BLON BLON SCK1 TXD1 TXD1 SCK1 TXD1 TXD1 SCK1 SCK1 BRIGHT BRIGHT SCK1 SCK1 BRIGHT BRIGHT SHORT SHORT SHORT1 SHORT1 AMPVCC AMPVCC AWG26 AMPVCC AMPVCC...
Page 48 GM1601 GM1601 S3.3V 5VSCL 5VSDA A3.3SCL A3.3SDA S3.3V A3.3V R7G3 4.7K Q700 NDC7002N R7J1 R799 4.7K C707 F-10K K-.1 R7J7 R7J2 STB_RMC R7G4 4.7K R7J3 4.7K S3.3V R7J8 R7J4 BLUE R710 OPEN IC703 C708 24LC64TI/SNG Q701 IC704 AMBER 6.3V TC74HC4053AFT NDC7002N 470u C721...
Page 49 D7X7 D7X8 UDZS9.1B UDZS9.1B GND2 C7X8 K-.01 J7X0 R7X7 DT10121-R3T-4F 1/16W C7X3 CN MD9P C7X2 R7X1 L7X1 STB-RMC C7X7 BK2125HS750 K-.01 1/16W R7X2 L7X2 BK2125HS750 1/16W LCD-RMC IC7X0 C7X6 ADM3311EARS R7X3 L7X3 BK2125HS750 1/16W C7Y3 R7Z1 L7X7 BK2125HS750 C7X4 C7X5 1/16W C7Y2 R7Y0...
Page 50 TO FROIS2 TO μ CON AD3.3V FR_OB[7-0] FR_EB[7-0] FROIS2 R259 TPPCR L200 R203 AD3.3V BLM21B050SPT 1/10W 1/16W TPPCG L201 R204 C207 L208 BLM21B050SPT 1/10W FLC32CT-100K K-.1 L210 TPPCB BLM21P221SG L202 R205 C233 BLM21B050SPT 1/10W R246 K-.1 R261 R249 R200 4S600 4S600 F-75 1/4W 1/16W C232 1/16W...
Page 51 TO ADC TO μ CON A3.3V D2.5V D3.3V R2C1 R2C0 R2C2 L2A0 4S600 4S600 L2A2 4S600 BLM21P221 L2A1 1/16W 1/16W 1/16W L2A3 L2A5 BLM21P221 TO ADC BLM21P221 R2E1 R2C9 C2E0 1/16W C2C9 1/16W C2F1 A3.3V C2A0 C2F0 K-.1 C2H6 C2H5 C2E5 C2E2 K-.1 C2E4 C2E3 R2C8...
Page 52 μCON μCON μCON S3.3V R504 SI99RST OPEN R563 R544 R543 10K-F Q500 DTC124EK L500 R545 BLM21P221PG R502 L501 OPEN C502 Q503 Q501 100u UPA672T-T1-A NDC7002N R511 CSDA CSCL 4.7K R510 4.7K VCLK R512 R542 HDMI_Y4 R556 HDMI_Y5 DSCL HDMI_Y6 R513 HDMI_Y7 HDMI_Y(7:0) IC501...
Page 53 To REG,uCON GND5 R420 R4A5 R4A6 R4A7 IC400 gm1601-LF-CF Q401 Q402 DTC124EK DTC124EK R448 R449 2.2K 2.2K DD_DQS[3:0] C445 K-.1 C469 D3.3V C468 R491 C497 K-.1 K-.1 K-.01 R411 AD_B- DD_DQS0 R412 AD_B+ DD_DQS1 C444 K-.1 C498 C488 R431 DD_DQS2 C494 K-.01 K-.1...
Page 54 D3.3V C4F1 K-.1 L430 BLM21PG221SN1D C4F2 D2.5V C4C0 K-.1 C4C1 C4E5 K-.1 DD_DAT4 DD_DAT27 DD_DAT26 DD_DAT6 DD_DAT25 C4E4 K-.1 OCM_ADR7 OCM_ADR14 DD_DAT7 DD_DAT24 DD_DAT16 OCM_ADR6 OCM_ADR13 IC403 HY5DU283222AF(P)-36 DD_DAT15 DD_DAT17 DD_DAT14 OCM_ADR5 OCM_ADR8 C4C2 C4E3 K-.1 K-.1 OCM_ADR4 OCM_ADR9 DD_DAT19 DD_DAT12 IC405 DD_DAT18...
Page 55 TPHL IC302 R312 R313 CS4334-KSZ C310 1/16W 1/10W 6.3V 4.7u HDMI_I2S 1 SDATA AOUTL HDMI_SCK C313 2 DEM/SCLK C312 C311 CH 100p HDMI_WS 100u K-.1 3 LRCK C353 R319 C314 R318 TPHR K-.01 1/10W 6.3V 4.7u 1/16W L322 HDMI_MCLK 4 MCLK AOUTR C342 C343...
Page 56 4.5V 37" L9080 BLM21P221SG 32":NC D9000 /37":18V A3.3V 1SS355TE-17 D9050 IC9000 1SS355TE-17 S3.3V D1.8V C9080 SI3033LSA A3.3V L9001 L9000 BLM21P221SG 32" BLM21P221SG K-.01 IC9050 SI3018LSA D1.8V L9050 L9051 L9082 BLM21P221SG BLM21P221SG BLM21P221SG 32":P5V C9000 C9082 C9001 R9000 C9003 C9002 /37":NC K-.01 100u 100u...
Page 57 PWB-MAIN PWB-MAIN 37"=13P 32"=10P GND1 GND3 37" C9J9 0.01 AC-OFF PSAVE1 L9E1 BLM21P221SG PSAVE2 C9H1 32" 0.01 L9D9 BLM21P221SG PSAVE3 AMP17V C9J4 C9H2 0.01 S3.3 4.5V 0.01 BLON C9H3 0.01 BRIGHT C9Q6 C9J5 L9D8 D9J3 0.01 0.01 BLM21P221SG C9H4 PSAVE4 1SS355TE-17 0.01 L9D7...
Page 58 PWB-POWER PWB-POWER 32INCH C940 0.01 LIVE COLD GND4 C941 0.01 BLON SHORT1 C942 CH100 C977 250V M-1500 C943 0.01 C911 C978 250V 470P T901 TH901 M-1500 L901 ETS28LZ145AD NTPDD120LD7B0 SN10P-601JB R966 1/16W L902 D902 L903 R920 44H-5002 YG972S6R FBR07HA850 PC901 1/2W IC902 PC123FY...
Page 59 SERVICE R0H3 R0G5 1/10W 1/10W L0G0 9 10 11 12 13 BLM21P221SG L0G1 STB_RMC JBS-25P-3A3F90 C0G0 14 15 16 17 18 19 20 21 22 23 24 25 C0G7 D0G0 BLK1608HM121 SFH235FA R0H2 R0G8 C0G8 C0G9 2.7K 1/16W 1.2K 1/16W R0G4 R0H4 1/16W...
Page 60 RXD1 TXD1 SCK1 C001 K-.01 R007 R009 2.2K 2.2K IC001 HD74LV125A R006 C002 K-.01 S3.3V R008 R014 GEN_W R004 R005 R012 R013 R028 DAT0 C004 C003 DAT1 DAT2 DAT3 DAT4 DAT5 GEN_W DAT6 IC002 74LCX04MTCX_NL R020 C006 K-.01 R027 R015 R019 R023 S3.3V...

This manual is also suitable for:

Lt-3780 Lt-3280d Lt-3780d

Mitsubishi Electric LT-3280 Service Manual

Quick Links

Troubleshooting

Related Manuals for Mitsubishi Electric LT-3280

Summary of Contents for Mitsubishi Electric LT-3280

This manual is also suitable for:

Table of Contents