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Mitsubishi Electric WS-B55, Service Manual, Page: 18 / 97

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Mitsubishi Electric WS-B55 Service Manual Download Page 18

Page 18

MODELS: WS-48511 / WS-55511 / WS-55711 / WS-65511 / WS-65611 / WS-65711 / WS-65712 / WS-73711 / WS-B55

SERVICING THE LENTICULAR SCREEN AND FRESNEL LENS

2.

Lenticular Screen and Fresnel Lens Installation.

Note:

Store the Lenticular Screen and Fresnel Lens in a cool dry place.  High humidity may
deform the Lenticular Screen and Fresnel Lens.

1.

Apply double coated tape (Part # LENS-TAPE) along the top front edge of the Fresnel Lens
as shown below.  Refer to the Table below for proper tape length.

2.

Place the Fresnel Lens on top of the Lenticular Screen and apply pressure at the top edge
to bond them together as shown below.

Model

Screen

Size

Tape

Length

WS-48511

48"

41.76"

WS-B55

55"

47.8"

WS-55511

55"

56.5"

WS-55711

55"

56.5"

WS-65511

65"

56.5"

WS-65611

65"

56.5"

WS-65711

65"

56.5"

WS-65712

65"

56.5"

WS-73711

73"

63.51"

Summary of Contents for WS-B55

Page 1: ...RST 75Ω unbalanced COMP Y Cr Cb RCAType Y 1 0 Vp p Cr Cb 700mVp p ATV Y G Pr R Pb B H V Y 1 0Vp p with sync 75Ω BNC Pr Pb 700mV 75Ω H V 3 0Vp p 75Ω VGA R G B V H 15 pin D Output Level VIDEO OUT JACK RCA Type 1 0Vp p 75Ω unbalanced AUDIO OUT JACK RCAType 4 7dBm 4 7kΩ unbalanced Digital Interface IEEE 1394 I O Jacks AC 3 Digtal Audio Output V21 MODELS WS 48511 WS 55511 WS 65511 WS B55 V21 MODELS WS ...

Page 2: ......

Page 3: ...WS 65611 WS65711 WS 65712 WS 73711 17 Lenticular Screen and Fresnel Lens Installation 18 SERVICING THE DIAMONDSHIELDSTM r DiamondShield TM Removal Installation 19 CABINET SEPARATION 65 and 73 inch WS 65712 20 WS 65511 21 WS 65611 WS 65711 WS 73711 21 SERVICING PCBs Chassis and DM Module Removal 22 PCB Locations 23 Main Components Location 23 DM Module Main Components Location 24 CRTREPLACEMENT CRT...

Page 4: ...LACEMENT 52 REPLACEMENT PARTS Parts Ordering 53 Critical and Warranty Parts Designation 53 Parts Tolerance Codes 53 Quick Reference List 54 Service Parts List 55 Screen Parts List 70 CIRCUITRY BLOCK DIAGRAMS Standby Supplies Regulator 74 Switched Supplies Regulator 75 DM Power Supply 76 Video Color A V Switch Circuit 77 Video Color Signal Path 78 Sync Signal Path 79 Deflection HV 80 X Ray Protect ...

Page 5: ...d block diagrams of the above listed models are included in this service manual for better under standing of the circuitry PCB drawings are also included for easy location of parts and test points PRODUCT SAFETY NOTICE Many electrical and mechanical parts in television receivers have special safety related characteristics These characteristics are often not evident from visual inspection nor can t...

Page 6: ...mponent with regard to X Radiation High voltage must be set as prescribed under the section titled Electrical Adjustments Leakage current check Before returning the receiver to the customer it is recommended that leakage current be measured according to the following methods 1 Cold Check With the alternating current AC plug removed from the AC source place a jumper across the two AC plug prongs Co...

Page 7: ...ET DISASSEMBLY FRONT VIEW WS 48511 Refer to the Parts List for Part Numbers Front Cabinet Disassembly 1 Remove the Speaker Grille by pulling forward 2 Remove the Board Front by removing screws a 3 Remove the screws b holding the Screen Assembly 4 Lift the Screen Assembly up and away from the cabinet ...

Page 8: ...r Cabinet Disassembly 1 Remove the Back Board by removing screws a and b 2 Remove 4 screws c securing the Board Slide 3 Remove 4 screws d holding each Board Shelf 4 Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected e g speaker plugs etc 5 Remove 3 screws c and screw f Then slide the Light Box Assembly from the cabinet ...

Page 9: ...MBLY FRONT VIEW WS B55 WS 55511 WS 65511 Refer to the Parts List for Part Numbers Front Cabinet Disassembly 1 Remove the Speaker Grille by pulling forward 2 Remove the Board Front by removing 4 screws a 3 Remove the 4 screws b holding the Screen Assembly 4 Lift the Screen Assembly up and away from the cabinet ...

Page 10: ... 65611 Refer to the Parts List for Part Numbers Front Cabinet Disassembly 1 Remove the Speaker Grille by pulling forward 2 Remove the Board Front by removing screws b 3 Remove the Control Panel by removing two screws a 4 Remove the four screws c holding the Screen Assembly 5 Lift the Screen Assembly up and away from the cabinet ...

Page 11: ... WS 73711 Refer to the Parts List for Part Numbers Front Cabinet Disassembly 1 Remove the Speaker Grilles and Unit Front by pulling forward 2 Remove 2 screws a to remove the Control Panel 3 Remove the Board Front by removing 4 screws b 4 Remove the 4 screws c holding the Screen Assembly 5 Lift the Screen Assembly up and away from the cabinet ...

Page 12: ...rt Numbers Rear Cabinet Disassembly 1 Remove screws a holding the Back Board 2 Remove 4 screws a holding the Board Slide 3 Remove the 4 screws b holding each Board Shelf 4 Remove screw e and 3 screws c securing the Light Box Assembly 5 Be certain that all cables and connectors between the Light Box Assembly and external items are disconnected e g speaker plugs etc 6 Slide the Light Box out the rea...

Page 13: ...rs Front Cabinet Disassembly 1 Remove the Speaker Grille by pulling forward 2 Remove 2 screws a securing the Front Panel 3 Slide the Front Panel 1 2 inch to the right then pull away from the TV 4 Remove 6 screws b to remove the Board Front 5 Unplug the LF connector 6 Remove the 4 screws c securing the Screen Assembly 7 Lift the Screen Assembly up and away from the cabinet ...

Page 14: ...the Parts List for Part Numbers Rear Cabinet Disassembly 1 Remove screws a and b holding the Back Board 2 Remove the 4 screws c holding each Board Slike 3 Remove the 3 screws c and screw e securing the Light Box Assembly 4 Disconnect cabling to the front panel Control Panel Speakers Inputs etc 4 Slide the Light Box out the rear of the Cabinet ...

Page 15: ...ause fire and heat related injuries WS 48511 Lenticular Screen and Fresnel Lens Removal 1 Remove the screen assembly shown in the Cabinet Disassembly procedure 2 Remove the Top Bottom and Side Screen Holders 3 Carefully lift the Lenticular Screen and Fresnel Lens combination from the Screen Frame assembly Note When separating the Lenticular Screen from the Fresnel Lens use caution while prying the...

Page 16: ... may cause fire and heat related injuries WS B55 WS 55511 WS 65511 Lenticular Screen and Fresnel Lens Removal 1 Remove the screen assembly shown in the Cabinet Disassembly procedure 2 Remove the screws a securing the Screen Holder 3 Slide the Lenticular Screen and Fresnel Lens from the Screen Frame Note When separating the Lenticular Screen from the Fresnel Lens use caution while prying the Screen...

Page 17: ...711 WS 65712 WS 73711 Lenticular Screen and Fresnel Lens Removal 1 Remove the screen assembly shown in the Cabinet Disassembly procedure 2 Remove the Screen Frame top section by removing 4 screws a 3 Carefully grasp the Lenticular Screen and Fresnel Lens combination and pull upward and out of the Screen Frame Assembly Note When separating the Lenticular Screen from the Fresnel Lens use caution whi...

Page 18: ...enticular Screen and Fresnel Lens 1 Apply double coated tape Part LENS TAPE along the top front edge of the Fresnel Lens as shown below Refer to the Table below for proper tape length 2 Place the Fresnel Lens on top of the Lenticular Screen and apply pressure at the top edge to bond them together as shown below Model Screen Size Tape Length WS 48511 48 41 76 WS B55 55 47 8 WS 55511 55 56 5 WS 5571...

Page 19: ...of the Shield and pull the Shield slightly away from the unit Place your hands at the points shown and gently bow the Shield toward you and remove from the unit Then re install the two clips Top Bottom Molding Clips Side Molding Clips 1 Gently insert a small screwdriver between the DiamondShield and one end of the clip to pry the clip loose 2 Remove both clips by pulling them toward you 3 Carefull...

Page 20: ...ker Grille by pulling forward 2 Remove the two Front Cover screws a 3 To remove the Front Cover slide to the right approximately 1 2 then pull away from the TV Figure 2 4 Remove Screw b from the front board 5 Disconnect the LF connector Figure 3 6 Remove screw c on each side of the cabinet 7 Remove the plastic cover on each side Figure 4 8 Slide the top of the cabinet top forward Figure 5 9 Carefu...

Page 21: ...ft the cabinet top and place it on the floor 5 Place the cabinet bottom in the desired loca tion 6 Reverse the procedure and mount the cabinet top on the cabinet bottom 7 Reinstall the the Screen Assembly and connect all cable harnesses between the Screen Assembly and the PCB SIGNAL WS 65611 WS 65711 WS 73711 WS 65611 WS 65711 WS 73711 Cabinet Separation Precedure 1 Remove the 4 screw covers a 2 R...

Page 22: ...peakers CRTs etc 2 Remove screw a securing the Main Chassis and screws b in model WS 65712 3 Release the Chassis Locks on each side of the chassis 3 Slide the Chassis and DM Module out the rear of the unit 5 Tilt upward to access the bottom of the main chassis NOTE If the chassis cannot be removed with the DM Module due to insufficient cable length 1 Perform Step 1 through 3 above 2 Remove 1 screw...

Page 23: ...Page 23 MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 PCB Locations Main Components Location ...

Page 24: ...Page 24 MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 DM POWER SUPPLY ATV TUNER DE MODULATOR E2P MODULE FLASH CARD SLOT COVER DM Module Main Components Location ...

Page 25: ...y 2 Remove the Back Board 3 Remove the Anode Lead Wire from the CR Block 4 Remove the PCB CRT 5 Remove 4 hex screws a retaining the Optical Unit Figure 5 1 6 Remove 4 screws b retaining the Lens Note DO NOT loosen the RED screws Doing so will break the seal between the C Element and the 6 Lens causing leakage of the CRT Coolant 7 Remove 4 screws c retaining the CRT Figure 5 2 8 Remove the Deflecti...

Page 26: ...e space between them filled with ethylene glycol Care should be taken during handling and installation to prevent shock from disrupting the seal or alignment between the CRT and Inner Lens Figure 5 3 Note The CRT fixing screws should not be loosened nor should they be removed Figure 5 4 1 Carefully position the replacement CRT and fasten in place using 4 screws d Figure 5 6 Figure 5 6 Figure 5 5 F...

Page 27: ...the Lens so that the Label faces the direction shown in Figure 5 8 b Install the mounting screws Figure 5 1 4 Connect the PCB CRT 5 Insert the Optical Unit into the Light Box Assembly 6 Insert the Anode Lead Wire into the Flyback Transformer 7 Re clamp the Lead Wire in its original position Adjustment procedures after replacing the CRT s CRT Cut Off White Balance Adjustment Static Convergence Adju...

Page 28: ...quipment Oscilloscope Unless otherwise specified use 10 1 probes Signal Generator both SD and HD capable Frequency Counter Direct Current Voltmeter Direct Current Power Supply Multiplex Audio Signal Generator Direct Current Ampere Meter Test Signal A Monoscope Signal Note If you do not have a monoscope signal source connect the unit to a VCR and play a Monoscope alignment tape Part Number 859C5680...

Page 29: ...N A N A Level Sound OFF OFF OFF OFF OFF OFF OFF A V RESET DEFAULT SETTINGS By Input Edit Setup Closed Captions With Mute Volume 30 Review CC Background Gray Bass 50 Antenna A Enabled Digital Channel Guide On Treble 50 Antenna B Enabled Balance 50 Antenna DTV Enabled V CHIP Off Surround Off Input DTV Enabled TV Rating TV PG Listen to Stereo Input 1 Enabled FV Fantasy Violence Enabled Level Sound Of...

Page 30: ... The LED then flashes indicating the value of the LSD ones digit of the Error Code The Error Code is repeated a total of 5 times Example If the Error Code is 24 the LED will flash two times pause and then flash four times 3 Error Codes The Error Code designations indicating a malfunction or no malfunction are listed below Remote Control Operational Modes There are two Remote Hand Unit Operational ...

Page 31: ...ode does not appear on screen B Selection of adjustment Functions and Adjustment Items To select an adjustment item in the circuit adjustment mode first select the adjustment function that includes the specific adjustment item to be selected Then select the adjustment item Refer to the following pages for the listing of adjustment functions and adjustment items 1 Press the AUDIO button on a remote...

Page 32: ...ctivation 1 Press MENU 2 1 5 9 2 When the Convergence Mode is activated this display appears on a Green Crosshatch B Selecting the HD or SD Mode 1 Select the Signal Source before entering the Convergence Mode either an NTSC or HD source 2 Enter the Convergence Mode If the signal source is NTSC the SD mode is activated If the signal source is HD the HD mode is activated 3 Activating the HD mode whe...

Page 33: ... with the AUDIO button FINE GREEN a Green Crosshatch is displayed to make Fine Raster Corrections FINE RED a White Crosshatch is displayed to make Fine Red Convergence Adjustments FINE BLUE a White Crosshatch is displayed to make Fine Blue Convergence Adjustments Cursor In the Fine mode a Cursor is added to the Crosshatch The ENTER button toggles the Cursor between two modes MOVE blinking Cursor u...

Page 34: ...al Data Notes NO Abbrev Description Range 480i 480p 1080i VGA 1 SCT Picture Gain H Temp 0 63 42 42 42 42 Sub Contrast 2 SBRT Sub Brightness H Temp 0 63 26 26 26 26 Black Level 3 SCOL Sub Color H Temp 0 15 7 5 3 3 Preset 4 STIN Sub Tint 0 15 6 10 15 7 5 SCON Sub Contrast H Temp 0 15 2 3 3 3 6 RDRH R Drive high 0 63 30 30 30 30 White Balance 7 GDR G Drive 0 63 35 35 35 35 Preset 8 BDRH B Drive high ...

Page 35: ...tem Abbrev Description Range RF Non RF 1 TNTM Main Tint 0 63 24 24 Preset 2 COLM Main Color 0 63 17 17 3 YDRM Main Gain Control 0 31 5 5 Main Y Level 4 VPDM Pr Pedestal Adjustment 0 15 7 7 5 UPDM Pb Pedestal Adjustment 0 15 7 7 Initial Data DYNAMIC FOCUS MENU 2 1 5 9 Item Number Abbrev Name Data SD HD 1 DFH Dynamic Focus Horizontal 500 2 DFV Dynamic Focus Vertical 100 Description OSD Horizontal Ce...

Page 36: ...0 0 0 4 TILT Tilt X axix rotation 0 0 0 0 0 0 0 0 5 HLIN Horixontal Linearity 190 190 180 170 150 150 220 190 6 HWID Horizontal Width 0 10 0 0 10 10 10 10 7 VKEY Vertical Keystone Correction 120 110 100 95 90 70 100 110 8 VWID Vertical Height 0 0 0 0 0 0 0 0 9 VLIN Vertical Linearity 0 0 0 0 0 0 0 0 10 TPPC Top Bottom PC Correction 20 20 20 20 20 20 20 20 11 SDBW Horizontal Side Bow 30 30 30 30 30...

Page 37: ...712 WS 73711 WS B55 Page 37 Adjustment Test Point Location Test Points DT pin 3 HV Adjust DT pin 6 Ground DT pin 7 12 Volts DT pin 8 ACL EA pin 1 Sub Picture Y EA pin 15 Main Picture Y EB pin 5 POP Cr ST pin 12 Left Audio ST pin 16 Right Audio TP6 R G or B CRT Cathode ...

Page 38: ...12 Left Audio 7 Confirm that the left audio level at pin 12 of the ST connector is 1 56 Vp p 0 06V 550mv 20mv rms Note Adjustment 2 Stereo Separation must be performed after this adjustment Audio Circuit 1 MCS Input Level Oscilloscope Conector ST pin 16 10mV Div RF Stereo RF Input Audio Circuit 2 Separation Check stereo separation Poor stereo separation Note This adjustment must follow Adjustment ...

Page 39: ...re than 0 15V Note This adjustment must be performed if E2RESET or Convergence E2RESET are activated HV Circuit 3 HV Regulation Oscilloscope EA connector pins 15 1 Color Bars Video Input Video Circuit 4 Main Sub Y Level To set picture luminance Excess or insufficient brightness 1 Supply a color bar signal to a Video Input not an RF input 2 Select the color bar signal for both the main and sub pict...

Page 40: ... is short adjust Items 4 VPDS and 5 UPDS 5 Side by Side Sub Picture Tint To set the sub picture color level Main and sub pictures color levels differs Video Circuit 6 Side by Side Sub Color Oscilloscope EB connector pin 5 200mV div 20usec div Color Bars Video Input Note Let the set run for at least one minute before making this adjustment 1 Supply a color bar signal 2 Select the color bar signal a...

Page 41: ... To set the CRTs white level in the NTSC mode Monochrome has a color tint Note Use the FORMAT button to activate the Expand mode full screen 1 Supply a full White Raster Signal 2 Activate the Service Mode VC function 3 Set the data for Item 23 COL to 0 4 Adjust Items 6 RDRH and 8 BDRH for optimum white at the center of the screen 5 Reduce the input luminance level to 25 6 Adjust Items 9 CTRH and 1...

Page 42: ...6 RDRH and 8 BDRH for optimum white at the center of the screen 6 Reduce the input signal luminance to 25 7 Adjust Items 9 CTRH and 11 CTBH for optimum white 8 Set the data for Item 23 COL back to 31 White Raster HD NTSC Video DTV Inputs CRT Circuit 10 Cb Cr Offset To set Cb and Cr color signal level Incorrect colors 1 Supply an NTSC White Raster 25 luminance signal to a Video Input 2 Activate the...

Page 43: ...ON SCALE DC ma meter DT connector pins 7 8 Grayscale RF Input To set overall beam current to its optimum level Excess or insufficient contrast Note Activate the Expand mode full screen 1 Supply a Grayscale signal to a RF Input 2 Activate the Adjust Mode VC Function 3 Select Item 1 SCT signal level automatically reduces 4 Connect a 3ma DC meter between DT connector pins 7 and 8 Positive lead to pin...

Page 44: ...e CONV MISC Table 5 Exit the Conv Mode Monoscope Video Input Poor focus Note This adjustment must be done before Electrostatic Focus Perform this adjustment for RED GREEN and BLUE monochrome pictures 1 Supply a VIDEO signal Monoscope 2 Cover the Red and Blue Lens producing a green raster 3 Adjust the Green Lens for best focus at the center of the Monoscope pattern Note Attach a white paper to the ...

Page 45: ...tic Focus Alignment Magnet To set electrostatic focus to the optimum point Poor focus Note This adjustment must be performed after the Sub Contrast adjustment Alignment Magnet Adjustment WS 55711 65611 65711 65712 73711 Only This adjustment must be performed before Static Focus Adjustment 1 Supply a Crosshatch with Center Dot signal to a Video Input 2 Set the display format to Standard Format butt...

Page 46: ...0 0 0 0 0 0 9 TBPC 150 150 200 190 200 170 220 180 10 VKEY 15 10 15 10 0 0 10 10 11 VWID 0 0 0 0 0 0 0 0 12 VLIN 0 0 0 0 0 0 0 0 CONV RED MENU 2 1 5 9 5 No Abbrev SD HD SD HD SD HD SD HD 1 HSTA 50 50 50 50 50 50 50 50 2 VSTA 0 0 0 0 0 0 0 0 3 SKEW 0 0 0 0 0 0 0 0 4 TILT 0 0 0 0 0 0 0 0 5 HLIN 190 190 180 170 150 150 220 190 6 HWID 0 10 0 0 10 10 10 10 7 VKEY 120 110 100 95 90 70 100 110 8 VWID 0 0...

Page 47: ...SC Monoscope signal to a Video Input 2 Select the Monoscope as the signal source 3 Activate the Adjustment Mode JNGL Function 4 Select and adjust each of the following items 7 VHGT so the vertical marker sum 4 1 HWD so the horizontal marker sum 7 5 Save data and Exit the Service Mode HD Mode 1 Supply an HD Monoscope signal to the DTV HD Inputs 2 Select the DTV Inputs as the signal source Input but...

Page 48: ...te the Convergence Mode Coarse Green 3 Adjust the Coarse Green Items shown below for straight crosshatch lines 4 Select the Fine Green Mode a Cursor is displayed on the crosshatch 5 Use the Cursor to adjust for straight crosshatch lines 6 Exit the Convergence Mode HD mode 1 Supply horizontal and vertical HD sync to the DTV Inputs and select the DTV Inputs as the source Note If an HD signal is not ...

Page 49: ...the Coarse Green mode Center the Green Raster using the Green Centering Magnet Rotate the Green Deflection Yoke to correct any tilt 6 In the Coarse Red mode use the Red Centering Magnet to converge red on the green at the center of screen Correct any red tilt with the Red Deflection Yoke 7 In the Coarse Blue mode repeat Step 6 using the Blue Centering magnet and the Blue Deflection Yoke 8 Exit the...

Page 50: ...the Items shown below to converge the red on the green 4 Select Coarse Blue mode 5 Adjust the Items shown below to converge the blue on the green Note If center convergence shifts use red and blue Items 0 HSTA and 1 VSTA to correct the shift 6 Exit the Convergence Mode HD mode 1 Supply horizontal and vertical HD sync to the DTV Inputs and select the DTV Inputs as the source Note If an HD signal is...

Page 51: ...ence Mode Fine Red 3 Use the Cursor to converge red on the green 4 Select the Fine Blue mode 5 Use the Cursor to converge blue on the green 6 Exit the Convergence mode HD Fine Adjustment 1 Supply an HD signal sync only to the DTV inputs and select DTV with the Audio button Note If an HD signal is not available select Ant DTV with no signal as the source 2 Repeat SD Fine Adjustment Steps 2 through ...

Page 52: ...eat for more than 3 three seconds to new chip parts 5 Avoid using a rubbing stroke when soldering 6 Take care not to scratch or damage the chip parts when soldering 7 Supplementary cementing is not required Chip Parts Removal Resistors Capacitors etc 1 Grasp the part with tweezers Melt the solder at both sides alternately and remove one side of the part with a twisting motion 2 Melt the solder at ...

Page 53: ...orders will result Critical and Warranty Parts Designation Critical Electrical Components are indicated by Bold Type in the Parts List and in the schematic diagrams by shading Warranty Return Parts are indicated in the Parts List with an Parts Tolerance Codes Refer to the following chart for tolerance characteristics of electrical components MARK B C D F G J K Tolerance 0 1 0 25 0 5 1 2 5 10 MARK ...

Page 54: ...ANODE SHORT RED WS 73711 only 453B035040 CAP ANODE LONG G B WS 73711 only MODEL ASSY CRT RED ASSY CRT RED ASSY CRT RED WS 48511 251C222010 251C222020 251C222030 WS B55 251C221070 251C221080 251C221090 WS 55511 251C219040 251C219050 251C219060 WS 55711 251C219070 251C219080 251C219090 WS 65511 251C220010 251C220020 251C220030 WS 65611 251C220040 251C220050 251C220060 WS 65711 251C220070 251C220080 ...

Page 55: ...OS TC74LCX08FT IC5290 270P677030 IC BAO9FP IC5300 275P684010 IC C MOS TL810B IC5300 669D544020 SCREW SEMS W M3X0 5 12 IC5301 275P672010 IC C MOS RM5231 200Q IC5302 275P675010 IC C MOS SN74LV125APWR IC5303 275P666010 IC C MOS MAX6358SYUT T IC53A0 275P741020 IC C MOS MT48LC8M16A2TG 75 IC53A1 275P741020 IC C MOS MT48LC8M16A2TG 75 IC53A2 275P741020 IC C MOS MT48LC8M16A2TG 75 IC53A3 275P741020 IC C MOS...

Page 56: ...C MOS MSM534031E TS K IC7H04 270P506010 IC M51957BFP IC7H05 263P384010 IC C MOS TC74HC221AF EL IC7H06 270P348010 IC TLC2932IPW IC7H07 275P437020 IC SLA4028 IC7H08 270P348010 IC TLC2932IPW IC7H09 274P901010 IC C MOS TC74HCT7007AF EL IC7H11 275P535010 IC C MOS TC74AC157FN ELP IC7H12 275P535010 IC C MOS TC74AC157FN ELP IC7H13 275P535010 IC C MOS TC74AC157FN ELP IC7H14 275P535010 IC C MOS TC74AC157FN ...

Page 57: ...U1A D5A51 262P039010 DIODE BYW96E 20 D5A52 264P899010 DIODE BYV26E D5A53 264P489010 DIODE RD16FB1 D5A54 264P724010 DIODE STF14 D5A55 264P724010 DIODE STF14 D5A56 264P045040 DIODE 1S24710M D5A57 264P521040 DIODE EU1A D5A58 264P045040 DIODE 1S24710M D5A59 264P045040 DIODE 1S24710M D5A60 264P489010 DIODE RD16FB1 D5F00 264P828010 D CHIP DAN202U MA142WK D5F01 264P828010 D CHIP DAN202U MA142WK D5F02 264...

Page 58: ...42 409P777080 EMI F CHIP BLM21P221S L2M00 409P777080 EMI F CHIP BLM21P221S L2M20 409P777080 EMI F CHIP BLM21P221S L2V06 409P923060 EMI F CHIP BLM21B272S L2V72 409P923060 EMI F CHIP BLM21B272S L2V90 409P923060 EMI F CHIP BLM21B272S L2V95 409P923060 EMI F CHIP BLM21B272S L2W01 409P923060 EMI F CHIP BLM21B272S L2W02 409P923060 EMI F CHIP BLM21B272S L2W03 409P923060 EMI F CHIP BLM21B272S L2W04 409P923...

Page 59: ... 325C141090 COIL CHIP 33MH K L59R0 325C141030 COIL CHIP 10MH K L59R3 325C141030 COIL CHIP 10MH K L59X0 325C140050 COIL CHIP 2 2MH M K J L5A31 411P001010 LEAD FERRITE L5A33 333P052030 COIL HORIZ LIN L5A34 321C130010 COIL RF 2MH L5A51 321C141030 COIL RF 10MH K L5A52 321C141030 COIL RF 10MH K L5A53 321C141010 COIL RF 6 8MH M L5A54 411D009020 CORE FERRITE L5A55 411D009020 CORE FERRITE L5F00 409P923060...

Page 60: ...NF20C470S CKD510JB1H470S LC7E13 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7E14 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7G01 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7G02 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7G03 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7G04 409P876020 EMI F CHIP CNF20C470S CKD510JB1H470S LC7G05 409P876020 EMI F CHIP CNF20C470S CKD51...

Page 61: ...CARBON 1 4W 6 8K J R3E16 103P713050 R CARBON 1 4W 6 8K J R4B02 103P463060 R METAL 1 4W 3K F 2 R4B05 103P713090 R CARBON 1 4W 15K J R4B10 103C188050 R METAL 2W 2 7 J R4B12 103C188040 R METAL 2W 2 2 J R4B17 103P712010 R CARBON 1 4W 470 J R4B20 103P711090 R CARBON 1 4W 330 J R4B22 103P712090 R CARBON 1 4W 2 2K J 1345678 R4B23 103P711070 R CARBON 1 4W 220 J R4B24 103P712050 R CARBON 1 4W 1K J R4B25 10...

Page 62: ...2W10K K R5K02 103P412050 R CARBON 1 4W 1K J R5K03 103P145000 R CARBON 1 2W 120K J R5K04 103P144090 R CARBON 1 2W 100K J R5K05 103P145000 R CARBON 1 2W 120K J R5K06 103P144090 R CARBON 1 2W 100K J R5K07 103P145000 R CARBON 1 2W 120K J R5K08 103P144090 R CARBON 1 2W 100K J R5K09 103P762020 R FUSE 1 2W 560 J R5K10 103P711010 R CARBON 1 4W 68 J R5K12 103P760060 R FUSE 1 2W 27 J R5K13 103P145000 R CARB...

Page 63: ...CARBON 1 2W 180K J R9A05 109C010010 R COMPOSITION 1 2W1M K R9A06 109C010010 R COMPOSITION 1 2W1M K R9A09 103P144090 R CARBON 1 2W 100K J R9A10 103P713040 R CARBON 1 4W 5 6K J R9A11 103P144090 R CARBON 1 2W 100K J R9A12 103P713030 R CARBON 1 4W 4 7K J R9A20 103P713010 R CARBON 1 4W 3 3K J R9A21 103C393090 R METAL P 3W15K J R9A22 103C183070 R METAL 2W 10K J R9A23 103P710070 R CARBON 1 4W 33 J R9A24 ...

Page 64: ... 16V100M M C1A30 181P352040 C ELEC 16V100M M C1A31 181P352040 C ELEC 16V100M M C1A50 172P262010 C M POLY 50V 0 047M J C1B10 181P355090 C ELEC 50V100M M C1B29 181P352040 C ELEC 16V100M M C1B30 181P352040 C ELEC 16V100M M C1B31 181P352040 C ELEC 16V100M M C1B50 172P262010 C M POLY 50V 0 047M J C2A00 181P352030 C ELEC 16V47M M C2A50 181P352030 C ELEC 16V47M M C2A51 181P352030 C ELEC 16V47M M C2A60 18...

Page 65: ...10 C ELEC 50V1M M C5122 181P355010 C ELEC 50V1M M C51K7 181P351050 C ELEC 10V220M M C51P1 181P350050 C ELEC 6 3V470M M C5221 181P353060 C ELEC 25V330M MSO C5234 181P355090 C ELEC 50V100M M C5235 181P355090 C ELEC 50V 100M M C5251 181P351070 C ELEC 10V470M M C5253 181P351060 C ELEC 10V330M M C5255 181P351060 C ELEC 10V330M M C5257 181P350060 C ELEC 6 3V1000M M C5258 181P350050 C ELEC 6 3V470M M C52...

Page 66: ... C7K01 181P352030 C ELEC 16V47M M C7K21 181P355050 C ELEC 50V10M M C7K23 181P352030 C ELEC 16V47M M C7K25 172P262050 C M POLY 50V 0 1M J C7K26 172P262050 C M POLY 50V 0 1M J C7K27 181P355010 C ELEC 50V1M M C7K28 181P355050 C ELEC 50V10M M C7L22 172P262050 C M POLY 50V 0 1M J C8C03 181P184010 C ELEC 50V1000M M105C C8C05 181P184010 C ELEC 50V1000M M105C C8C43 142P020080 C CER B50V 820P K C8C44 142P0...

Page 67: ...250VAC0 1M M C9D01 189P153040 C M POLY 250VAC0 1M M CF2E00 299P128010 CERAMIC OSC CSB500F2 CF2H01 299P128010 CERAMIC OSC CSB500F2 CF3A01 299P208010 CERAMIC OSC C5B503F58 SWITCHES S5400 432C082010 SW PUSH SPPJ322300 S7L20 432P089010 SW KEY BOARD PUSH SWITCH S7L21 432P089010 SW KEY BOARD PUSH SWITCH S7L22 432P089010 SW KEY BOARD PUSH SWITCH S7L23 432P089010 SW KEY BOARD PUSH SWITCH S7L24 432P089010 ...

Page 68: ...2A20 285P029030 QUARTZ CRYST 4 000 MHZ X2B20 285P029030 QUARTZ CRYST 4 000 MHZ X2C31 285P374050 QUARTZ CRYST 20 000MHZ X2E26 285P374020 QUARTZ CRYST 3 579545MHZ X2H26 285P066010 QUARTZ CRYST 3 579545MHZ X50 285P410060 QUARTZ CRYST 26 800MHZ X51X0 285P410020 QUARTZ CRYST 24 576MHZ X5400 285P410050 QUARTZ CRYST 9 216MHZ X54A0 285P410040 QUARTZ CRYST 25 0MHZ X5500 285P410030 QUARTZ CRYST 20 25MHZ X55...

Page 69: ...73711 Ref Part Part Name Description 761A186020 GRILLE SP RIGHT 73 9 761A195010 GRILLE SPEAKER 2 761A174030 GRILLE SPEAKER 4 761A174040 GRILLE SPEAKER 4 761A199010 GRILLE SPEAKER 8 752A003030 SPEAKER GRILL TOP PS 9 ACCESSORIES 290P109010 TRANSMITTER REMOTE EUR761 I B WSB55 IB OWNERS GUIDE I QR V21 QUICK REFERENCE GUIDE I NET V21 NET COMMAND GUIDE BOOK I SEP GUIDEV21 IB SEPARATIONGUIDE 5679 I SEPGU...

Page 70: ...1 8 WS 65712 9 WS 73711 SCREENASSEMBLYPARTS WS 48511 Figure1 1 491P138010 SCREEN LENTICULAR 48 2 2 491P139010 LENS FRESNEL 48 2 3 622B010010 HOLDER TOP 2 4 622B011010 HOLDER BOTTOM 2 5 622B012010 HOLDER SIDE 2 6 622B013010 CLIP SHIELD SIDE 48 2 7 751A005020 FRAME SCREEN BEZEL PLASTIC 2 8 760D628060 DIAMOND SHIELD 48 2 9 598D339010 BRACKET SCREENSIDE METAL 2 10 635B109010 STIFFENER TOP METAL 2 Figu...

Page 71: ...NEL 1 3 4 622C063040 HOLDER SCREEN BOT 1 3 5 701B454010 FRAMESCREEN TOP 55 1 3 6 701B457030 FRAME SCREEN S 55 1 3 7 702A388030 CAP CORNER LEFT 1 3 8 702A388040 CAP CORNER RIGHT 1 3 9 760D627060 DIAMOND SHIELD 55 3 9 760D639020 DIAMOND SHIELD 55 1 10 622C060040 CLIP SCREEN TOP BOT 1 3 WS 65511 Figure2 1 491P105030 SCREEN LENTICULAR 65W V21 5 2 491P106050 LENS FRESNEL 65W V21 5 3 702A393050 CONTROLP...

Page 72: ... 73711 SCREENASSEMBLYPARTS WS 65712 Figure3 1 491P105040 SCREEN LENTICULAR LENTI 6 8 2 491P106060 LENS FRESNEL FRESNEL 65W 8 3 622C090010 CLIP SHIELD 65 8 4 702A408010 CAP CORNER METAL 8 5 702A409010 CAP CORNER BOTTOM METAL RIGHT 8 6 702A409020 CAP CORNER BOTTOM METAL LEFT 8 7 760D635020 DIAMOND SHIELD 8 8 701B466010 FRAME SIDE AL METAL 8 9 701B467010 FRAME TOP AL METAL 8 10 701B468010 FRAME BOTTO...

Page 73: ... 491P106050 LENS FRESNEL 65W V21 6 3 5 701B429020 SCREEN FRAME TOP BOT 65 6 4 701B430020 SCREEN FRAME SIDE 65 6 6 760D627070 DIAMOND SHIELD 65 6 7 702A396010 CAP CORNERS 6 9 622C071020 CLIP SCREEN TOP BOT 6 WS 65711 Figure4 1 491P105030 SCREEN LENTICULAR 65W V21 7 2 491P106050 LENS FRESNEL 65W V21 7 3 711C026040 FRAME SCREEN TOP 65 7 4 711C026050 FRAME SCREEN SIDES 65 7 5 711C026060 FRAME SCREEN B...

Page 74: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 74 STANDBY SUPPLIES REGULATOR ...

Page 75: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 75 SWITCHED SUPPLIES REGULATOR ...

Page 76: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 76 DM POWER SUPPLY ...

Page 77: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 77 VIDEO COLOR A V SWITCH CIRCUIT ...

Page 78: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 78 PCB SIGNAL Y C PATH ...

Page 79: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 79 SYNC PATH ...

Page 80: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 80 DEFLECTION CIRCUIT X RAY PROTECT ...

Page 81: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 81 SOUND CIRCUIT ...

Page 82: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 82 CONVERGENCE CIRCUIT ...

Page 83: ...MODELS WS 48511 WS 55511 WS 55711 WS 65511 WS 65611 WS 65711 WS 65712 WS 73711 WS B55 Page 83 CONTROL CIRCUIT ...

Page 84: ...ION TELEVISION V21 V21 V21 CHASSIS V21 MODELS WS 48511 WS 55511 WS 65511 WS B55 V21 MODELS WS 65611 WS 65611 PART 2 SCHEMATIC DIAGRAMS CONTENTS Page Overall PCB Block Diagram 1 PCB MAIN 2 PCB POWER 3 PCB POWER 4 PCB SIGNAL 1 AV I O 5 PCB SIGNAL 2 MICRO 6 PCB SIGNAL 3 VIDEO CHROMA 7 PCB 3DYC 8 PCBs CONV GEN JUNGLE 9 PCBs CONTROL CRT CROSSOVER DBF DM POWER FRONT PREAMP SVM 10 PCB 2HDW 1 11 PCB 2HDW ...

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