MODEL
COMMANDER DEST. CHASSIS NO.
-
CHASSIS
BG-
1
S
SERVICE MANUAL
TRINITRON
®
COLOR TV
LekSound&Vision'50
Страница 1: ...MODEL COMMANDER DEST CHASSIS NO MODEL COMMANDER DEST CHASSIS NO CHASSIS BG 1S SERVICE MANUAL TRINITRON COLOR TV LekSound Vision 50 LekSound Vision 50 LekSound Vision 50 ...
Страница 2: ...gh impedance Outputs A earphone jack mini jack 2 headphones jack Ú monitor output jacks phono jacks D video 1 Vp p 75 ohms audio 500 mVrms Picture tube 21in Tube size cm 54 Measured diagonally Screen size cm 51 Measured diagonally Dimensions w h d mm 610 470 474 Mass kg 22 CAUTION SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS CRT SHIELD OR CARBON PAINTED ON THE...
Страница 3: ...ION 14 5 CIRCUIT ADJUSTMENTS 5 1 Adjustments with Commander 15 5 2 Adjustment Method 16 5 3 A Board Adjustment after IC003 Memory Replacement 20 5 4 Picture Distortion Adjustment 20 Section Title Page Section Title Page 6 DIAGRAMS 6 1 Block Diagrams 21 6 2 Circuit Boards Location 23 6 3 Schematic Diagrams and Printed Wiring Boards 23 1 Schematic Diagram of A Board 29 2 Schematic Diagrams of C and ...
Страница 4: ...rom the AC outlet and then plug into the AC outlet again 2 Turn the power switch ON and set to Service Mode 3 Call the adjusted items again to confirm adjustments were made SERVICE MUTING 1 F DATA RDR Adjustment Item 09 Item number WRITE 1 F RDR 09 0 Executes the writing Green 2 WHITE BALANCE ADJUSTMENTS 1 Set to Service Mode 2 Input an entire white signal 3 Set the PICTURE to maximum 4 Select RDR...
Страница 5: ...ncy responding to each failed device is shown below SECTION 4 SELF DIAGNOSIS FUNCTION Board name Ref No Device Flickering Frequency A Board IC003 NONVOLATILE MEMORY ST24C04FB6 1 A Board IC300 Y C JUNGLE TDA8375A 3 All the devices are checked one after another from the left of the table If an error is found the responding LED will start flickering So if more than 1 device have failed only the one o...
Страница 6: ...r control goes to the standard state 5 Service data initialization Be sure not to use usually 2 Write 50Hz adjustment data to 60Hz or viceversa The screen display is 1 4 Select the adjustment item 3 6 Raise lower the data MUTING Writes Executes the writing SERVICE Mode 08 Data HSF 50 Depends on the signals PAL SECAM 50 NTSC 60 Adjustment item 00 Mode Item 00 V3 2C 052S OEM CODE German A2 Stereo So...
Страница 7: ... will change back to SERVICE 2nd line disappear when written 0C VSF 08 00 V3 2C 052S 00 V3 2C 052S Blank 5 2 ADJUSTMENT METHOD Item Number 08 This explanation uses V SHIFT as an example 1 Select 08 V SHIFT with the 1 and 4 buttons 2 Raise lower the data with the 3 and 6 buttons 3 Select the optimum state The standard is 0F for PAL reception 4 Write with the MUTING button 5 Execute the writing with...
Страница 8: ...ideo 01 03 Sub Sharpness 19 SC1 1F 50 60Hz 26 29 Sub Color Lower 1A SC2 0B 50 60Hz 0C 0D Sub Color Higher 1B AIP 40 3F Adjustment IF PLL 1C VZM 20 19 Vertical Zoom 1D WST 15 W G Stereo Threshold 1E WBT EA W G Bilingual Threshold 1F WLL 05 W G Monaural Threshold 20 ACG 1 AGC Switch auto constant 21 CDB 28 AGC Gain at Constant Mode 22 FGP 1B FM Prescale for B G I D K 23 FMP 32 FM Prescale for M 24 F...
Страница 9: ...t item table are reference values therefore it is different for every model Item Adj Initial Note for Different Standard Data Function Device No Item Data Data 39 OSH 0A OSD H Position 3A DKS 1 0 D K Stereo enable disable 3B MUT 0 Muting on off at No Sync 3C ABL 0 Bright ABL Switch 3D SCM 0 SECAM Trap active inactive 3E FBT 1 FBT L S C M strict plain 3F OP0 2F 28 2199 2F J21 Optional Flags 0 see b...
Страница 10: ...fective if set to 1 3B OP1 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 Item HDEV 1 V Curve XTAL SEL SECAM 2nd Lang Initial data 0 0 0 0 1 1 1 1 XTAL SEL 0 0 only 4 43 XTAL 0 1 only 3 58 XTAL 1 0 not used 1 1 both 4 43 and 3 58 XTAL 1 V Curve for monaural model 1 using common volume curve for every mode and every TV system 0 another volume curve available for video mode and M system HDEV 1 High...
Страница 11: ... well adjusted give them fine adjustment Write the data per each item number MUTING 4 Select item numbers 3E OP0 3F OP1 and 40 OP2 and respectively set the bit per model with command buttons 3 and 6 5 Press commander buttons 8 and Test Normal to return to the data that was set on the shipment from the factory Cancel Service Mode 00 HSF H SHIFT 01 HSZ H SIZE 02 PAP PIN AMPLITUDE 03 CNP CORNER PIN 0...
Страница 12: ...ILTER VM VIDEO CN1701 VM AMP Q1761 SLICE AMP Q1762 SHIFT LEVEL Q1756 VM MUTE 5 VM MUTE SLICE CORRECTING AMP Q1764 D1763 1764 VM AMP Q1766 VM BUFFER Q1767 Q1763 1765 VM DRIVE E VM VM VM OUT ROTATION V PIN DF CIRCUIT VM NECK ASSY 9V REG 9V IC521 S906 KV 2199M5J ONLY 9V 4 L IN 1 R IN Note The component identified by shading and mark are critical for safety Replace only with part number specified 6 2 ...
Страница 13: ...0V PT 0 001 B CHIP 220p 500V B 1 330p 2kV B 0 0082 200V PT 0 001 500V B 0 012 1 2kV PP 10 160V 1000p 2kV 0 1 200V PT 0 01 B CHIP 0 01 200V PT 470 25V 0 0047 2kV B 0 001 500V B 470 25V 0 001 500V B 0 033 MPS 470p 500V B 47 100V 0 068 100V MPS 680p B CHIP 0 01 100V PT 470p CHIP 470p CHIP 100 16V 100 16V 100 16V 1 100 16V 100 16V 100 16V 220 16V 5 5MHz 4P GRY S MICRO 6P S MICRO 2P YEL S MICRO 2P WHT ...
Страница 14: ...2 3 4 5 6 7 8 9 10 11 H KG G2 CV KR G1 G4 HV KB 1000V 200V FOCUS G2 H STAT C FV GND GND H1 TO A BOARD IK GND TO A BOARD CN103 9V B IN G IN R IN T0 A BOARD FBT CN851 V901 PICTURE TUBE A51JUH71X RGB OUT Schematic diagram H H H H H a board Schematic diagrams c vm boards G G G G G PRINTED WIRING BOARD C BOARD C RGB OUT 9V 3 9 9 1 3 2 7 8 8 4 4 6 5 5 1 5 0 9 1 8 5 4 1 1 4 7 9 4 0 0 7 0 1 1 0 6 59 59 11...
