SANYO Factory Code N7SG Service Reference NO. 272 DP19649 SERVICE MANUAL 18.5" HDTV LCD ORIGINAL MFR'S VERSION A Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. PERFORM A SAFETY CHECK AFTER SERVICING As for the places which need special attentions, they are indicated with the labels or seals on the Confirm that the screws, parts and wiring which cabinet, chassis and parts.
ABOUT LEAD FREE SOLDER (PbF) Distinction of PbF PCB: PCBs (manufactured) using lead free solder will have a PbF printing on the PCB. (Please refer to figures.) Caution: • Pb free solder has a higher melting point than standard solder; Typically the melting point is 86 F~104 F(30...
CONTENTS SERVICING NOTICES ON CHECKING………………………………………………………………… A1-1 HOW TO ORDER PARTS………………………………………………………………………………… A1-1 IMPORTANT………………………………………………………………………………………………… A1-1 ABOUT LEAD FREE SOLDER (PbF)…………………………………………………………………… A1-2 CONTENTS…………………………………………………………………………………………………… A2-1 GENERAL SPECIFICATIONS…………………………………………………………………………… A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS……………………………………B1-1, B1-2 2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC………………………………………B2-1, B2-2 SERVICE MODE LIST………………………………………………………………………………………...
GENERAL SPECIFICATIONS LCD Size / Visual Size 18.50 inch / 470.1mmV System LCD Type Color TFT LCD Number of Pixels 1366(H) x 768(V) View Range Left/Right 85/85 degree Up/Down 80/80 degree < Bright Dot Zero Bright Dot Ratio Color System NTSC Speaker 2 Speaker...
Page 6
GENERAL SPECIFICATIONS Remote Unit RC-PV Control Glow in Dark Remocon Remocon Format ORION Format Custom Code 86-05 h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 28 Keys Keys Power Recall (Quick View) Sleep Mute CH+ / Up CH- / Down VOL+ / Right...
Page 7
GENERAL SPECIFICATIONS Tuning CH Program Air/Cable ADD/DELETE Label CH Label Video Label Favorite CH V-Chip Type USA Type RRT Setup Lock Hotel Lock Channel Lock Video Lock Panel Lock Englis Menu Language DBC (Dynamic Backlight Contrast) Signal Meter (DTV Signal) Closed Caption CC Advanced V-Chip Clear...
Page 8
GENERAL SPECIFICATIONS Component Input 720×480i (4:3) Yes (60Hz) 720×480i (16:9) Yes (60Hz) 720×480p (4:3) Yes (60Hz) 720×480p (16:9) Yes (60Hz) 720×576i (4:3) 720×576i (16:9) 720×576p (4:3) 720×576p (16:9) 1280×720p Yes (60Hz) 1920×1080i Yes (60Hz) 1920×1080p Wall Mount Size W x H(mm) Yes (100 x 100) Screw Size M4 x 10...
Page 9
Container Stuffing (40' container) 1852 Sets/40' container w/Pallet w/Wrapping G-16 Material Cabinet Front PS 94V0 NON-DECABROM Rear PS 94V0 NON-DECABROM Jack Panel Non-Halogen Demand Eyelet Demand G-17 Environment Environmental standard requirement Green procurement of SANYO Pb-free Phase3(Phase3A) Measures for Whisker A3-5 A3-5...
DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: FRONT CABINET ASS'Y and LCD PANEL AND P.C. BOARDS (Refer to Fig. 1-3) 1. Turn up set and put the Front Cabinet Ass'y of LCD on the top. CAUTION 2. Remove the Front Cabinet Ass'y in the direction of Be careful not to remove the LVDS cable forcibly, because the LVDS cable may be damaged.
Page 11
DISASSEMBLY INSTRUCTIONS 1-4: DIGITAL PCB (Refer to Fig. 1-5) 1-5: POWER PCB, REMOCON PCB and OPERATION PCB (Refer to Fig. 1-5) 1. Remove the 2 screws (1). 2. Remove the Holder LCD in the direction of arrow (A). 1. Disconnect the following connector: (CP7601). 3.
DISASSEMBLY INSTRUCTIONS 2. REMOVAL AND INSTALLATION OF 3. When IC starts moving back and forth easily after FLAT PACKAGE IC desoldering completely, pickup the corner of the IC using tweezers and remove the IC by moving with the IC REMOVAL desoldering machine.
Page 13
DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a 1. Take care of the polarity of new IC and then install the Thintip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for more than a the standard time in the appropriate condition.
WHEN REPLACING EEPROM (MEMORY) IC CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION Initial total of MEMORY IC, POWER ON total hours and MICON VERSION can be checked on the screen. Total hours are displayed in 16 system of notation. NOTE: If you set a factory initialization, the total hours is reset to "0".
ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE NO. FUNCTION NO. FUNCTION Read and perform these adjustments when repairing the 03 R DRIVE(N) 35 TINT circuits or replacing electrical parts or PCB assemblies. 04 R CUTOFF(N) 36 SHARP H1 MAX 05 G DRIVE(N) 37 SHARP H1 MIN CAUTION 06 G CUTOFF(N)
Page 17
ELECTRICAL ADJUSTMENTS 2-2: BRIGHTNESS CENT 2-3: CONTRAST MAX 1. Place the set in Aging Test for more than 30 minutes. 1. Place the set in Aging Test for more than 30 minutes. 2. Receive the color bar pattern. (RF Input) 2.
Page 18
ELECTRICAL ADJUSTMENTS 2-4: CONTRAST 40 2-5: CONTRAST CENTER 1. Place the set in Aging Test for more than 30 minutes. 1. Place the set in Aging Test for more than 30 minutes. 2. Receive the color bar pattern. (RF Input) 2.
Page 19
ELECTRICAL ADJUSTMENTS 2-6: Confirmation of Fixed Value (Step No.) Please check if the fixed values of each of the adjustment item is set correctly referring below. (TV/AV/COMPONENT/HDMI//PC/DTV) COMPONENT HDMI PC/HDMI-DVI FUNCTION CVBS 480i 480p 720p 1080i 480i 480p 720p 1080i 1080p 640x480 720x400...
WAVEFORMS FLASH 20ns 10s 200mV 200mV 100mV TUNER 10s 10s 0.2s 0.5V 100mV 200mV SOUND AMP 10s 100mV 100mV 200mV SCALER VIDEO/AUDIO 10s 0.5V 100mV 200mV 20s 500mV 100mV JACK 20s 500mV 100mV NOTE : The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION 7A701B337A FRONT CABI ASS'Y 101A 701WPBA113 CABINET FRONT 101B 713WPA0434 GLASS LED 101C 800WQ00181 FELT SHEET 7A702A993A BACK CABI ASS'Y 7A702B005A BACK CABI ASS'Y 7A702B009A BACK CABI ASS'Y 102A 702WPAB548 CABINET BACK 102B 761WSA0709 ANGLE BACK...
Page 50
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION CAPACITORS CAPACITORS C2822 CS0UB0N15K CC 0.1 UF 10V B C2919 CS0UB0N15K CC 0.1 UF 10V B C2823 CS0UB0N15K CC 0.1 UF 10V B C2925 CS0RB0N17K CC UF 10V B C2824 CS0UB0N15K CC...
Page 51
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION CAPACITORS DIODES C5804 E61UM0221D CE 220 UF 6.3V D521 DGERMA1110 DIODE SILICON MA111-(TX) C5808 CS0UB0N15K CC 0.1 UF 10V B D522 DGERMA1110 DIODE SILICON MA111-(TX) C5809 CS0PB0415K CC 0.1 UF 50V B ! D523...
Page 52
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION COILS &TRANSFORMERS MISCELLANEOUS L3602 02D1000119 COIL CHOKE EXC28CG900U CP8101 06977NM020 CONNECTOR PCB SIDE 127301123K2 L3603 02D1000119 COIL CHOKE EXC28CG900U EL2401 124116281A EYE LET XRY16X28BD L5803 021AS9224J COIL 0.22 UH EL2402...