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Service Manual
This Service manual is issued as a service guide for the models of the P6 family listed above. Included in this manual
are a set of schematics, alignment procedures, disassembly procedures and a complete parts list.
"WARNING! This Service Manual is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to
service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death."
The service technician is required to read and follow the "Safety Precautions" and "Important Safety Notice" in this Main Manual.
Color Video Projection System
Models
PT-51G36E
PT-51G36CE
Note: Refer to Technical Guide (P6) for
functional descriptions and Block Diagrams.
(MTNC010308G1).
Copyright 2001 by Matsushita Electric Corporation of
America. All rights reserved. Unauthorized copying
and distribution is a violation of law.
®
ORDER NO. MTNC010307C1
B2
Main Manual
(P6)
Panasonic
Chassis
AP822
AP822
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Table of Contents
Related Manuals for Panasonic PT-51G36E
Summary of Contents for Panasonic PT-51G36E
- Page 1 Service Manual Color Video Projection System Main Manual (P6) Panasonic Models Chassis PT-51G36E AP822 PT-51G36CE AP822 Note: Refer to Technical Guide (P6) for functional descriptions and Block Diagrams. (MTNC010308G1). This Service manual is issued as a service guide for the models of the P6 family listed above. Included in this manual are a set of schematics, alignment procedures, disassembly procedures and a complete parts list.
- Page 2 CRT Set Up CAUTION: Insure yoke plugs on the A-Board • On Service Mode DAC V02 press Vol are reconnected before turning the PTV 2. DAF4 (H_DAF) appears, adjust by pressing ON to prevent damage to the horizontal until waveform is within specification. output transistor and/or CRTs.
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Page 3: Rear View
5. Repeat for blue focus VR while projecting blue 4. Position the longer tab of the four-pole magnet to only. degrees (uncorrected position). (See 6. Repeat for green. Figure 27). Focus - Optical Lens Adjustment Optical Adjustments 6-pole magnet (Dummy ring) Note: This adjustment normally should not require 4-pole magnet resetting unless the lens has been replaced or... -
Page 4: Horizontal Phase Adjustment
9. If the position of the dots moved after repeated 6. Remove lens covers enable digital adjustments, adjust until the movement of the dots convergence by changing Dac D0F from 1 to 0. is minimized. 10. Turn the red focus VR fully clockwise. 11. -
Page 5: Convergence Adjustment
Pincushion Adjustment (D05) 9. Transfer lens cover from blue to red, so that blue is projected. Procedure: 10. Adjust blue deflection coil until the horizontal 1. Cover Red and Blue Lenses. center line matches the pattern of the grid and is 2. -
Page 6: Coarse Adjustment Mode
Raster Setup: 16. In “FINE ADJUSTMENT MODE” options, press 1. Cover Red & Blue lens with caps. “MUTE” key on remote to switch between “cursor” 2. Apply an NTSC monoscope pattern. mode and “data” mode. • Cursor mode: Allows cursor movement by 3. - Page 7 6. Enter to linearity “G-LINEAR” mode by pressing 18. Press “7” then “ACTION” key on remote to save “TV/VIDEO”. changes 7. Adjust linearity by pressing VOL right-left until A=B (See Figure 39) Figure 42. KEY mode adjustment Note: Confirm that pattern looks like a square and almost overlaps the screen frame, check that Figure 39.
- Page 8 25. Enter LINEARITY “R-LINEAR” mode Fine Adjustment Mode (V01) pressing TV/VIDEO. (Convergence) 26. Adjust Horizontal linearity (See Figure 39) Note: It is strongly recommended to first read and 27. Enter to SIZE “R-SIZE” mode by pressing TV/ understand the following section prior to VIDEO make any adjustment.
- Page 9 7. This mode afects a wide area around the cursor 17. Begin adjustment from the center to the edge of than other adjustment modes, See values on the screen. screen pressing RECALL remote left/right (seeFigure 47) 8. Begin adjustment from the center to the edge of the screen.
- Page 10 The Convergence Alignment Template is a grid number TXFQD01ESER, is available through approximately the size of the viewing screen used to Matsushita/Panasonic Services. ensure the proper size and shape of the alignment rasters. It is 6 blocks across by 6 blocks high. The grid dimensions vary with the mode of operation.
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Page 11: Service Mode (Electronic Controls)
Service Mode (Electronic Controls) This PTV has electronic technology using the I²C Bus 8. “CHK” = Normal operation of CHANNEL Concept. It performs as a control function and it and VOLUME replaces many mechanical controls. Instead of adjusting mechanical controls individually, many of the control functions are now performed by using “On 32 B 0 2 215 C 0... - Page 12 Service Mode (Electronic Controls, Continued) Adj. Default Note: Registers marked as FIXED are factory preset, Service Adjustment Range Level the default value must not be changed Brightness FIXED Important Note: G Drive (RF) 0 ~ 127 Write down the original values (“b” in the B Drive (RF) 0 ~ 127 adjustment mode details, Figure 54) for each...
- Page 13 P PIP Adjustments Adj. Default Service Adjustment Range Level Adj. Default Service Adjustment Range Level Surround Effect FIXED PIP Color FIXED Table 9: Serviceman Adj. S00 ~ S12 (Continued) PIP Tint FIXED X Option Items PIP Brightness 0 ~ 31 Adj.
- Page 14 Contrast Adjustment Adj. Default Service Adjustment Preparation: Range Level 1. Set Auto Color and AI Picture to OFF 2. Set the following in the user picture menu as User Static Data FIXED (Vertical, Blue) follows: COLOR: min. (0) User Static Data FIXED PICTURE: max (63) (Horizon, Red)
- Page 15 Service Mode (Electronic Controls, Continued) Red, Green & Blue Screen Cutoff MTS Circuit Adjustments 1. Use either a no input signal condition or raster from Note: It is important to adjust the MTS circuit in the the NTSC generator. order shown below. 2.
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Page 16: Pip Adjustment
Service Mode (Electronic Controls, Continued) PIP Adjustment Note: Set the 30% modulation with the P.L and Preparation: N.R. switches OFF then turn them ON while 1. Apply a color bar pattern. testing. 2. Connect Scope to Connector A20 pin 2 on A-Board or Connector Y1 pin 2 (TPY2) on Y-Board. - Page 17 PT-51G36E/EC A-Board Schematic, Left Portion - 50-...
- Page 18 A-Board Schematic & Waveforms PT-51G36E/EC WAVEFORMS A-Board IC451 Pin 2 - 67.2V V-OUT A-Board Q501 COLLECTOR - 188V H-DRIVE - 51-...
- Page 19 PT-51G36E/EC P-Board Schematic, Left Portion - 52-...
- Page 20 P-Board Schematic & Voltages PT-51G36E/EC P-Board Voltage Measurements (IC & Transistors) IC832 IC802 IC801 ..11.47 . . . 141.20 ..1.56 ..0.00 ..10.38 .
- Page 21 PT-51G36E/EC X-Board Schematic, Left Portion - 54-...
- Page 22 X- Board Schematic, Right Portion & Voltages PT-51G36E/EC X-Board Voltage Measurements (IC & Transistors) IC001 IC101 ..4.72 ..4.78 ..4.14 ..3.90 .
- Page 23 PT-51G36E/EC K, G & R Board Schematics & Layouts G-Board Schematic R-Board K-Board Schematic R-Board Layout K-Board Layout G-Board Layout - 58-...
- Page 24 LB-Board Schematic, Layout & Voltages PT-512G36E/CE LB-Board Voltage Measurements Q960 Q959 Q3391 Q961 Q3341 9.54 131.40 139.90 3.21 2.98 71.30 71.30 132.00 11.48 11.99 8.97 132.10 140.50 2.98 2.39 Q3342 Q397 Q393 Q394 Q395 Q396 2.32 8.13 11.98 168.30 166.90 167.80 0.00 1.46...
- Page 25 PT-51G36E/CE LG-Board Schematic, Layout & Voltages LG-Board Voltage Measurements Q375 Q376 Q373 Q374 Q956 175.10 175.90 11.98 176.30 9.94 1.25 8.64 175.10 216.60 73.20 175.90 175.70 11.46 176.00 9.37 Q955 Q941 Q937 Q938 Q935 Q934 131.80 0.98 6.84 140.00 7.43 7.43...
- Page 26 LR-Board Schematic, Layout & Voltages PT-51G36E/CE LR-Board Voltage Measurements Q357 Q353 Q3351 Q354 Q350 Q351 8.10 11.98 174.50 3.16 0.00 0.61 1.61 173.20 217.20 11.46 215.30 0.00 8.34 11.45 174.10 2.94 0.00 0.00 Q931 Q932 Q957 Q958 Q356 Q355 139.90 0.97...
- Page 27 PT-51G36E/CE Y-Board Schematic, Layout & Voltages Y-Board Voltage Measurements (IC & Transistors) IC1801 Q1801 Q1802 Q1803 ..0.00 ..3.23 0.00 3.39 3.34 ..1.52 ..3.23 4.08...