Canon D78-5152, D78-5153, LV-5110E 4-8, Fig. 4-3

Part 4: Troubleshooting

4-8

TP532

TP562

A/D

IC202

DIGITAL

RGB

MATRIX

IC6101

SYSTEM

CONTROL

&

SCAN CONV.

IC301

D/A

IC2200

TIMING

CONTROL

IC3301

LCD

DRIVER

IC401

R-S/H

IC501

R-

LCD

PANEL

G-

LCD

PANEL

B-

LCD

PANEL

R-

LEVEL

SHIFT

IC3501

G-

LEVEL

SHIFT

IC3531

B-

LEVEL

SHIFT

IC3561

G-S/H

IC531

B-S/H

IC561

PC/AV

SW

IC5201

BUFFER

IC3321

TP3321

TP3332

TP501

TP502

TP531

TP512

TP513

TP511

TP561

TP211

TP212

TP213

TP219

TP217

TP218

TP221R

TP221G

TP221B

TPDVS

TPDHS

IC5251

IC5252

IC3581

IC1002

IC1001

IC5282

IC5253

TP2211R

TP2221G

TP2231B

IC2211

IC2221

IC2231

S-C

S-Y

VIDEO

H-SYNC

V-SYNC

R

G

B

AV BOARD

COMPO-

NENT

BOARD

MAIN BOARD

VIDEO/S-VIDEO

S-C

S-Y

VIDEO

H-SYNC

V-SYNC

PC_R

PC_G

PC_B

R/Cr/Pr

R

R

G/Y

G

G

B/Cb/Pb

B

B

DCLK/DHS/DVS

DCLK/DHS/DVS

HCLK/STV/HST/ENB

TP3581

IC3582

TP3582

FRP

NRS

NRS

7

15

229

8

1

3

4

6

5

12

11

47

18

16

14

22 24 26

5

6

46

43

40

16

47

47

PC/AV

Q5112

Cb/Pb

Cr/Pr

S/VIDEO

-SW

IC5281

TP5112

TP5113

TP5111

TP7223

TP7224

9

1

8

12

3

5

16 S/VIDEO

Q5211

4

1

7

21

18

G-SYNC

SEP.

IC1021

28

90

7

49

18

SYNC

SEP.

IC6901

DIGITAL

VIDEO

DECODER

IC5101

18

20

16

Fig. 4-3

Contents

Main SERVICE MANUAL Page Page Page PREFACE 1. Service Manual Composition 2. Model Differences 3. Tools & Test Equipment CONTENTS Part 1: General Information III Part 2: Repair Information Part 3: Adjustment IV Page Page Page Page 1. FEATURES 1.1 Development objectives Fig. 1-1 LV-5110 1-1 1.2 Major Features 1-2 1.3 LV-5110 Features (Details) 1-3 1-4 1-5 2. LV-5110 SPECIFICATIONS 2.1 Main unit 2.2 Connectors 2.3 Accessories 1-6 2.4 Other specifications 3. NOMENCLATURE 3.1 Main unit Fig. 1-2 1-7 3.2 Top controls Fig. 1-3 1-8 3.3 Rear panel terminals Fig. 1-4 COMPUTER IN 1-9 S VIDEO 3.4 Computer Input terminal Fig. 1-6 1-10 3.5 Control port connector Fig. 1-5 3.6 Remote control Fig. 1-7 1-11 3.7 Operating range Fig. 1-8 1-12 4. COMMENTARY 4.1 External appearance design 1-13 4.2 Hybrid gamma correction 4.3 Fan speed control Fig. 1-9 1-14 5. CONNECTING 5.1 Connection to the computer Fig. 1-10 MAC Adapter AUDIO OUT 5.2 Connecting to the video equipment 1-16 Video Source (example) Fig. 1-11 6. SETTING-UP THE PROJECTOR 6.1 Positioning the projector Fig. 1-12 1-17 6.2 Installation precautions Page Page Page Page Page 1. SAFETY INSTRUCTIONS 2-1 2. CIRCUIT PROTECTIONS 2.1 Fuse Fig. 2-2 [How to replace the fuse] 2.2 Thermal Switch 2.3 Warning Temperature and Power Failure Protection Possible causes Fig. 2-3 2.4 Air Filter Care and Cleaning 2-3 2-4 3. MECHANICAL DISASSEMBLIES 3.1 Cabinet Top Removal Fig. 2-5 3.2 Cabinet Front and Speaker Removal 2-5 Page 3.5 AV and Component Board Removal Fig. 2-8 3.6 Line Filter Board Removal 2-7 Fig. 2-9 3.7 Lamp Ballast Unit Fan (FN905) Removal Fig. 2-10 3.8 Power Board Removal Fig. 2-11 2-8 3.9 Optical Unit and Fan (FN901) Removal Fig. 2-12 3.10 Audio Amp. Board Removal 2-9 3.11 Fans (FN902, FN903, FN904) Removal Fig. 2-14 3.12 AC Inlet Assy Removal 2-10 Fig. 2-15 4. OPTICAL PARTS DISASSEMBLIES 4.3 Integrator Lens Assy Disassembly Fig. 2-18 Fig. 2-19 4.4 Relay Lens Assy Disassembly 2-12 4.5 Polarized Glass-in Assy Disassembly 4.6 Polarized Glass-out Assy Disassembly 2-13 Fig. 2-20 Fig. 2-21 Page 5. LCD PANEL/PRISM ASSY REPLACEMENT 5.1 LCD Panel/Prism Assy Removal 2-15 Fig. 2-23 5.2 Note on LCD Panel/Prism Assy Mounting Mounting Procedure Fig. 2-24 2-16 6. CLEANING Cleaning with air spray Disassembly cleaning 2-17 2-18 7. LAMP REPLACEMENT Fig. 2-25 Procedure How to reset the lamp replacement monitor timer Service Parts No.: DY4-6108-000 Description: Lamp Assy LV-LP10 Lamp Age 0123 Hours Page Page Page 1. BEFORE ADJUSTMENTS 3-1 Caution to memory IC replacement Caution of Main Board replacement (in the case IC302 is not defective) 3-2 1.1 Adjustments after Parts Replacement Electrical Adjustments Disassembly / Replaced Parts Optical Adjustments : Adjustment necessary 1.2 Service Adjustment Menu Operation To enter the service mode Fig. 3-1 3-3 To adjust service data 1.3 Service Conditions Fan Control Setting Procedure Service Conditions: 1.4 3-5 Service Adjustment Data Table No. Adjustment Item RangeInitial Value Description 3-6 No. Adjustment Item RangeInitial Value Description 2. ELECTRICAL ADJUSTMENTS [Adjustment condition] 2.1 Output Voltage Adjustment 2.2 Fan Voltage Adjustment 3-7 2.3 PC-Offset Adjustment 2.4 PC Gain Adjustment 2.5 Component Gain Adjustment 2.6 AV Gain Adjustment 2.7 NRS Adjustment 2.8 Signal Center Adjustment 2.9 PC/AV Gamma Off Adjustment 2.10 PC/AV-Video Adjustment-1 2.11 PC/AV-Video Adjustment-2 2.12 S/H Clock Adjustment 2.13 Common Center Adjustment 2.14 White Balance Adjustment 2.15 Black Balance Adjustment [PC black balance adjustment] [AV blackbalance adjustment] 2.16 Note on White Uniformity Adjustment 3-15 3. OPTICAL ADJUSTMENTS Fig. 3-12 Fig. 3-11 3.1 Contrast Adujstment [R/G/B-contrast adujstment] 3.2 Integrator Lens Adujstment [Adjustment]] 3-17 3-18 Fig. 3-13 Fig. 3-14 3.3 Relay Lens Adjustment [Adjustment] 3-19 Fig. 3-15 3-20 4. TEST POINTS AND LOCATIONS Fig. 3-16 K5C IC6901 IC202 Page Page 1. TROUBLESHOOTING 1.1 No Power 4-1 1) Periphery of chassis 2) Power board 3) Main board 4) Component board 4-2 Page 4-4 INDICATOR Fig. 4-1 IC301 SYSTEM CONTROL IC1806 7 control P.F.C. Interlock switch LAMP.DET LAMP SW. Switching power supply 1.2 No Sound 1) Main board MAIN BOARD Fig. 4-2 4-6 1.3 No Picture 1) AV board 2) Main board 4-7 4-8 VIDEO Cr/Pr Cb/Pb MAIN BOARD 2. CONTROL PORT FUNCTIONS 2.1 System Control & I/O Port Functions 4-9 4-10 4-11 3. WAVEFORMS 4-12 4-13 Page Page Page Page Page Page MB40988PFQ<D/A COnverter, IC2200> 4-20 AV9155C <PLL, IC1961> Page Page Page Page Page Page Page Page 1 * Page 2 Page (77) Page 3 Page Page 4 * * Page Page Page 6 PARTS LIST Page 7 Page Page Page 1. PARTS DESCRIPTION AND READING IN SCHEMATIC DIAGRAM Coil Reading 6-1 Capacitor Reading 6-2 Diode/Transistor Type Reading Example 1/2 D J 10K B Example 6 W K 8.2 Example 1/2 C K 1M Resistor Reading 2. PIN DESCRIPTION OF DIODE, TRANSISTOR AND IC Index 6-3 Index Index K: Cathode A: Anode C: Collector B: Base E: Emitter Circuit Block Diagram (LV-5110E/LV-5110U) A1 IC1809 LAMP REP LED MUTE LAMP REP LED R-LCD Power Supply Lines (LV-5110E/LV-5110U) A2 ASSY PWB, AV 12V ASSY PWB, AUDIO Schematic Diagrams LV-5110U/E A3 SW904 SW902 LP900 VR01 AV BOARD 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A4 TC7W53FU-(TE12L) 5.7V IC6901 EPM3128ATC100-10 IC3801 TWM7000-162020 (SCH_MK6PA/PK6PA) G/Y B/Cb/Pb PLL KEY SWITCHES A6 MEMORY CONVERTER (IC2200) "K33R" "K33G" "K33B" B-SAMPLE G-SAMPLE A8 GND6 6VD FAN 6VD 15.5V COMPONENT BOARD 12V1 AFTER SW FAN MK6AA-07 Printed Wiring Board Diagrams (LV-5110U/E) CAUTION