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ORDER NO.ITD9907012C3
Colour Television
TC-29P10N TC-33P10N
LX1 Chassis
Specifications
Power Source: Power Consumption:
TC-29P10N 134W Stand-by condition 0.4W TC-33P10N 144 W Stand-by condition 0.4 W 75 unbalanced, Coaxial type NTSC M Voltage Synthesizer 100 position (Auto Search) AC100 V, 60 Hz
Video / Audio Terminals:
AV1,2,3 S-Video IN Video IN Audio IN Video Out Audio Out Y:1.0 Vp-p 75 C:0.3 Vp-p 75 1 Vp-p 75 0.5 Vrms 1 Vp-p 75 0.5 Vrms
Monitor Out
Aerial Impedance: Receiving system: Tuning System: Receiving Channels:
VHF Band UHF Band CATV
Picture Tube:
TC-29P10N M68LQL185X Type29 (73 cm) 104° deflection TC-33P10N M79LQM185X Type 33 (85 cm) 104° deflection 15W (5W+5W+5W)(10% THD) 3.5 mm Plug 688 mm × 492 mm × 570 mm 790 mm × 555 mm × 653 mm 48.0 kg (Net) 71.0 kg (Net)
2-13 (NTSC M U.S.A.) 14-69 (NTSC M U.S.A.) 1-125 (U.S.A. CATV)
Audio Output: Headphones:
TC-29P10N TC-33P10N
Dimensions (W×D×H):
Intermediate Frequency:
Video Sound Color 45.75 MHz 41.25 MHz 42.17 MHz (NTSC) 31.0 (+0.7, -1.5)kV at zero beam current
Mass:
TC-29P10N TC-33P10N
High Voltage:
Accessories Supplied:
Remote Controller × 1 "R6" Battery × 2
Specifications are subject to change without notice. Mass and dimensions shown are approximate.
1999 Matsushita Electric Industrial Co.,Ltd. All right reserved. Unauthorized copying and distribution is a violation of law.
Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cover Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 In regard to the self-check function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Servicing method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Service Hint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Parts Location & Mechanical Replacement Parts List . . . . . . . . . . . . . . . . . . . 45 Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
-2-
Safety Precautions
General Guide Lines
1. It is advisable to insert an isolation transformer in the AC supply before servicing a hot chassis. Isolation Transformer
2.
Turn on the receiver's power switch.
power-on
3.
2.
When servicing, observe the original lead dress, especially the lead dress in the high voltage circuits. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers, shields, and isolation R-C combinations, are properly installed. When the receiver is not be used for a long period of time, unplug the power cord from the AC outlet.
Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the receiver, such as screw heads, aerials, connectors, control shafts, etc. When the exposed metallic part has a return path to the chassis, the reading should be between 4 MW and 20 MW. When the exposed metal does not have a return path to the chassis, the reading must be ·.
Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. Connect a 2kW, 10W resistor, in series with an exposed metallic part on the receiver and an earth such as a water pipe. Use an AC voltmeter, with high impedance type, to measure the potential across the resistor. Check each exposed metallic part, and measure the voltage at each point.
Hot-Check Circuit
3.
4.
2.
3.
4.
5.
Potential, as high as 33.0 kV, is present when this receiver is in operation. Operation of the receiver without the rear cover involves the danger of a shock hazard from the receiver power supply. Servicing should not be attempted by anyone who is not thoroughly familiar with the precautions necessary when working on high voltage equipment. Always discharge the anode of the picture tube to the receiver chassis before handling the tube. After servicing make the following leakage current checks to prevent the customer from being exposed to shock hazards.
AC Voltmeter To Instrument's Metallic Parts Exposed Water Pipe (Earth)
2 k9 10W
5.
Reverse the AC plug in the AC outlet and repeat each of the above measurements. The potential at any point should not exceed 1.0 Vrms. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the receiver should be repaired and rechecked before it is returned to the customer.
6.
6.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
-3-
X-Radiation
Warning:
1. The potential sources of X-Radiation in TV sets are the High Voltage section and the picture tube. When using a picture tube test jig for service, ensure that jig is capable of handling 33.0kV without causing XRadiation.
2.
Note: It is important to use an accurate periodically calibrated high voltage meter. 1. 2. Set the brightness to minimum. Measure the High Voltage. The meter reading should indicate 31.5 (+1.5, -1.5) kV. If the meter indication is out of tolerance, immediate service and correction is required to prevent the possibility of premature component failure. To prevent an X-Radiation possibility, it is essential to use the specified picture tube.
3.
-4-
In regard to the self-check function
When phenomena like "the power fails from time to time" or "the video/audio fails from time to time" can not be confirmed at the time of servicing, the self-check function can be used to confirm the occurrence and to limit the scope for the defective circuits. Also, when "the power fails from time to time", display of the color bar on the screen can be used confirm the occurrence and to limit the scope for the defective circuits.
Display method and display position Display method
When display is desired
Hold [ ] (OFF TIMER) on the remote control pressed and press [VOL -] on the TV set. (The reception screen switches to TV monitor, and a screen as shown on the right appears.) Operation part on the main unit
Display position
[VOL -] Press simultaneously.
Panas
H10 UV H30 AVSW H36 IC301 H91 IOA
OK H21 OK H34 DG OK H90 OK
OK OK OK
To return to normal display
When one of the buttons for channel selection etc. is operated, the display returns to the normal screen.
1 2
H57 H58 [OFF TIMER] Operation panel in the remote control
H56
H55
H99
Magenta Green Yellow
Red
Blue
Display at the time of a fault
Display phenomenon and treatment method
Display symbol H10 H21 H30 H34 Phenomenon, condition No output of video and audio. Audio stop. Surround function not effective. No video and audio. Surround function not effective. No video. No raster. Color stop. No color synchronization. Wrong colors. Bad on-screen display. No horizontal/vertical synchronization. No video. Color stop. Wrong colors. Bad on-screen display. No horizontal/vertical synchronization. The red bar is displayed momentarily and then the power is interrupted. The power signal lamp (red) flashes three times in intervals of 2.8 sec. The yellow bar is displayed for 0.5 sec., and then the power is interrupted. The power signal lamp (red) flashes twice in intervals of 3.3 sec. The green bar is displayed for 1 sec., and then the power is interrupted. The power signal lamp (red) flashes once in intervals of 3.8 sec. Abnormal power circuit. The power does not come up, and it is switched off after a few seconds. The memory gets lost. One horizontal line is not obtained at the time of servicing. "No video from time to time" because of causes in the antenna~tuner~video circuit. *This also may be displayed when the antenna plug is disconnected or when a channel without a signal is received. Treatment method Exchange the tuner (TNR001). Inspect the main board [A] IC2401 (audio compensation). Inspect the rear terminal switching board [H] IC3001. Inspect the digital core board [DG] IC6601.
H36 H55
Inspect the video signal processing board [AG] IC301. Detection of overcurrent (140V line), vertical output. Detection of 25 V line overcurrent, 25V line. "Power failure from time to time" because of the overcurrent (140V line), vertical output (+15V line). "Power failure from time to time" because of the overcurrent (140V line), vertical output (+15V line). Inspect the main 5V line. Exchange the main board [A] IC1114 (memory). Inspect the main board [A] IC1201 (expansion DAC). Inspect the tuner~video circuit.
H56
H57
H58 H90 H91 H99
-5-
Servicing method
Application of silicone grease to the anode cap
Anode part of the picture tube
Warning
Please apply grease when the anode cap has been removed. Please discharge the high voltage from the anode. Wipe off the applied grease and then apply new grease. Follow the illustration on the right for the application. About 80 mm About 40 mm
Anode cap
Application of silicone grease
Wiring routing
Clamper 1 Lead wire SP (left) lead [G9] Anode lead DY Focus, screen Center SP [G8] CY
2
3
4
5
6
7
8
9
10
Clamper 1 Lead wire AC DEG SP (right) lead [G8] L11 P3 H5
2
3
4
5
6
7
8
9
10
-6-
Service Hint
How to chassis into service position
Pull toward you
Stand the main chassis
Remove 8 Screws
A-Board D-Board
Service Position for DG-board.
Note: Extension cable kit (4 pieces of 8 pin cable) is supplied as service fixtures and tools. (Part No. TZS 709010).
L-BOARD V-BOARD K-BOARD D-BOARD P-BOARD
DG-BOARD
G-BOARD A-BOARD N-BOARD DF-BOARD DG-BOARD AG-BOARD H-BOARD
-7-
Board and module layout drawing
Before inspection
1. Remove the screws fixing the rear cover (8 screws) and the screw fixing the AC code cover. Inspect the board [L] and adjust the white balance, H-V, etc.
-8-
Inspection of the boards [A] and [D]
1. Disconnection the degaussing coil cable and the speaker cable clamps (2 places) and the lead clamps on the print holder (2 places), and disconnect the degaussing coil coupler from the board. 2. Pull out the chassis frame to the front.
Inspection of the boards [G] and [K]
1. Pull out the chassis frame to the front, and rotate the chassis frame as shown in following figure. Now inspection is possible from the parts side of the boards [G] and [K].
3. Tilt the pulled-out chassis frame as shown in the following figure and inspect the pattern side. At this time, use a cloth or similar for insulation.
2. Disengage the tabs (4 places) tilt up the board [K] in arrow direction, and inspect it with the pattern side on top. At this time, place a cloth underneath for safety (insulation). 3. At the time of installation, match the board and the chassis pins and install.
Warning
Electric shock may be caused when HOT parts are touched. An electric shock will be caused when the HOT part and the COLD part are touched at the same time.
Caution
1 When the board [K] has been removed from the chassis frame, pay attention to prevent the coupler leads of board [K] and board [G] from getting torn.
-9-
Inspection and exchange of the rear terminal switching board [H]
1. Remove the screws fixing the rear terminal cover (3 screws), disengage the locking tabs (4 places), and remove the rear terminal frame. Rear terminal frame screws (3 screws) Locking tab
3. Inspection is possible in the following condition. 4. In case of exchange, disconnect the coupler H5 from the rear terminal switching board [H], and disengage the coupler in upward direction either in this condition or with the rear terminal switching board [H] slightly raised.
Coupler H5 Rear terminal switching board [H] Rear terminal switching board [H] Locking tab
2. Disengage the cable (between H5 and L1) from the lead clamp on the print holder, and tilt the rear terminal switching board [H] down to the front. Lead clamp Print holder Coupler H5
Rear terminal switching board [H]
- 10 -
Exchange of each board
1. Disengage the cable (between H5 and L1) from the lead clamp on the print holder. 2. Remove the print holder set screw, disengage the tab, and remove the print holder. Set screw (1 screw) Print holder
Tab part
Lead clamp
3. Pull out the board to be exchanged to the top and replace it. 4. For the VIF audio multiplex demodulation board [N], remove the solder on the side of the board [A] and then exchange. When the DAF board [DF] has been exchanged, perform "DAF Phase Adjustment" (refer to page 26). When the video signal processing board [AG] has been exchanged, confirm the TV signal, the color bar signal, etc. On the screen and perform "Contrast Adjustment, Color Output/Color Hue Adjustment" (refer to page 36 and 27) asa required. (For easier understanding of the explanations, the condition with removed print holder is shown. The rear terminal switching board [H] also has been removed for the explanations.) DAF board [DF]
Rear terminal switching board [H] VIF audio multiplex demodulation board [N] Digital core board [DG] Video signal processing board [AG] U/V tuner
- 11 -
Adjustment
As shown in the following table, adjustment is required when some parts have been exchanged.
Exchange part Adjustment White balance adjustment H-V adjustment Amplitude compensation adjustment DAF phase adjustment Focus adjustment Contrast adjustment Color output/hue adjustment : Always requires adjustment : Confirmation by pattern, adjustment as required. : Confirmation by TV signal, color bar signal, etc., adjustment as required. Memory IC1114 Digital core board [DG] Video signal processing board [AG] Flyback transformer T551 DAF board [DF] Picture tube Deflection yoke
In regard to service adjustment mode How to enter into service adjustment mode
Press the button [VOL -] inside the door of the main unit while pressing the button [Recall + ] on the remote control transmitter three times in a row (within 2 seconds).
WB H-V G-MAG OPT
Operation on the main unit
Remote control buttons [Recall
TV/AV
+]
Press [VOL -] Next, press three times. Remote control button Contents Selection of main items Selection of sub-items For white balance adjustment
+ 3 6 2 5 8 9
Panasonic
0
-/--
-
Adjustment item selection
1 3
2 4 5
1
4
7
+
Cancellation
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
Screen for one horizontal line Adjustment
Volume +/] button.
· Caution item
*Channel selection is done with the [CHANNEL
1. After entering service adjustment mode, perform adjustment after making notes of the values for each item. The written values (data) differ according to the set. Using the notes value as a referncefacilites adjustment. 2. The iten [OPT ] (OPT adjusmtment) in the contents for service adjusmtent mode is for aadjusmtment at the plate. Stay away form this item, at it means adjustment of all items.
- 12 -
In regard to the adjustment items 1. Main Items Initial screen for service adjustment mode
Button " " for selection in forward direction
WB H-V G-MAG OPT
Button " " for selection in reverse direction
WB (Sub-adjustment) 2. Sub-items "Sub-adjustment" and "WB adjustment" " for selection in forward direction Button " " for selection in reverse direction (WB adjustment)
H-V (H-V adjustment)
G-MAG (G-MAG adjustment)
OPT (OPT adjustment) For factory adjustment, do not touch.
18
Color darkness (00 to 3F)
" for selection in forward direction Button " " for selection in reverse direction
R-CUT 19A
Red cutoff (000 to 3FF)
30
Tint (00 to 3F)
G-CUT 43
Green cutoff (00 to FF)
6B
Black level (00 to C0)
B-CUT 187
Blue cutoff (000 to 3FF)
38
Picture (00 to 7F)
BRT 20
Brightness (00 to 3F)
Button "
RF AGC1 92
RF AGC (00 to FF)
S-BRT 6B
Sub-brightness (00 to C0) Red drive (00 to FF)
Button "
When R, G, B-CUT, BRT, or S-BRT is selected, the screen becomes one horizontal line when button " " on the remote control is pressed. Even when BRT is adjusted, the value will not be memorized.
R-DRV 86
B-DRV A6
Blue drive (00 to FF)
· Caution items 1. After entering service adjustment mode, perform adjustment after making notes of the values for each item. The written values (data) differ according to the set. Using the noted values as a reference facilitates the adjustment. 2. The item [OPT ] (OPT adjustment) in the contents for service adjustment mode is for adjustment at the plant. Stay away from this item, as it means adjustment of all items.
How to read the diagram Color darkness (00 to 3F) Possible adjustment range Value written to the memory IC, shown as a hexadecimal number. (The shown values are examples.)
18
- 13 -
· H-V adjustment Initial screen for service adjustment mode
Button " " for selection in forward direction
WB H-V G-MAG OPT
Button " " for selection in reverse direction
WB (Sub-adjustment) (WB adjustment)
H-V (H-V adjustment)
G-MAG (G-MAG adjustment)
OPT (OPT adjustment) For factory adjustment, do not touch.
Button " " for selection in forward direction V-HET 3F Vertical amplitude (00 to 7F) 4:3 (fixed to 3F) (3F) 16:9 (fixed to 3F) Vertical linearity (00 to 3F) (1C) V-SCR 3A (1C) V-POS 1A (19) H-WID 1F (20) H-POS 0B (0B) H-PIN 1E (12) Button " " for selection in reverse direction Vertical pin level (00 to 3F) Horizontal position (00 to 1F) Horizontal amplitude (00 to 3F) Vertical position (00 to 3F)
Adjustment only at the time of 16:9 mode Vertical blanking (bottom) (00 to 7F) Vertical blanking (top) (00 to 3F)
V-BKD (23) V-BKU (17)
BKU
16:9
V-L, IN 24
BKU
Vertical S-shape compensation H-HET (00 to 3F) 06 (06) V-EHT 04 (04) H-BPN 08 (06) H-TPN 06 (07) H-KEY 2B (29)
Horizontal amplitude compensation (00 to 0F) 4:3 (fixed to 06) 16:9 (fixed to 06) Vertical amplitude compensation (00 to 0F) 4:3 (fixed to 04) 16:9 (fixed to 04) Lower pincushion (lower pincushion corners) (00 to 0F)
Top pincushion (upper pincushion corners) (00 to 0F)
Vertical pin keystone distortion (00 to 3F)
For adjustment to 16:9, switch by pressing the screen mode button of the remote control twice. The values in brackets are for 16:9 mode.
· Caution items 1. When H-key (vertical pin keystone distortion) is adjusted, the vertical position changes, and V-POS (vertical position) must be adjusted. However, when the vertical position is raised too much, the on-screen display no longer can be seen. 2. The item [OPT ] (OPT adjustment) in the contents for service adjustment mode is for adjustment at the plant. Stay away from this item, as it means adjustment of all items. 3. After entering service adjustment mode, perform adjustment after making notes of the values for each item. The written values (data) differ according to the set. Using the noted values as a reference facilitates the adjustment.
- 14 -
Adjustment accompanying exchange of the picture tube
· When the picture or the deflection yoke ha been exchanged, perform all of the following adjustment in the following order. When no part exchange has been done, adjustment still must be performed.
Procedure
Confirmation of demagnetization VRS adjustment Purity adjustment Convergence confirmation and adjustment H-V (distortion, position) adjustment White balance adjustment Sub-brightness adjustment Focus adjustment Overall inspection
Adjustment
Installation and provisional adjustment method Purpose: Facilitation of adjustment after installation 1. Push the deflection yoke all the way to the front and fix it provisionally. 2. Align the knobs of purity magnet, 4-pole convergence magnet, and 6-pole convergence magnet to minimize the composite magnetic field. 3. Demagnetize the front and the rear of the picture tube, the left and the right side of the cabinet, etc. with a demagnetization coil. At this time, keep the demagnetization coil away from the deflection yoke. 4. Receive a color pattern and perform aging for at least one hour.
22.0mm Front (picture tube) 6-pole convergence magnet 4-pole convergence magnet Deflection yoke VRS magnet Purity magnet
- 15 -
1. VRS adjustment Adjustment jig Measuring location Input signal
Purpose: Adjusting the red, blue, and green electron beams so that they hit the specified fluorescent substance correctly. Demagnetizer, color bar generator TV screen (visual observation) Crosshatch pattern 1. Receive a crosshatch pattern. 2. Confirm that the knobs of purity magnet, 4-pole convergence magnet and 6-pole convergence magnet all are aligned. 3. Loosen the screws fixing the deflection yoke and provisionally fix the deflection at the very front position with adjusted inclination. 4. Adjust the VRS magnet (Fig. 2) so that the horizontal lines of the crosshatch pattern become level (Fig. 3). 5. Next, perform purity adjustment.
6-pole convergence magnet 4-pole convergence magnet Purity magnet
Fig. 2 Fig. 3 Magnet for VRS adjustment Center line of the crosshatch pattern
VRS magnet Fig. 1 Board [L] 6 pole converges R/B with G Open for the same angle from the center. Adjust so that the curvature of the center line becomes flat.
4 pole converges R with B VRS magnets 2 pole (purity) Setting of CY magnets (33 inch models) 33 inch models
6 pole converges R/B with G
VRS magnets
4 pole converges R with B
2 pole (purity) Setting of CY magnets (29 inch models)
29 inch models Opening for VRS magnets
- 16 -
2. Purity Adjustment Adjustment jig
Purpose: Adjusting the red, blue, and green electron beams so that they hit the specified fluorescent substance correctly. Color bar generator TV screen (visual observation)
1. Receive a crosshatch pattern and perform simple adjustment of the convergence with the convergence magnets. Input signal Crosshatch pattern 2. Receive a red pattern (red single color signal). Red pattern (red single color signal) 3. Slide the deflection yoke to the rear (towards board [L] and Rainbow color pattern fix it provisionally when the red vertical bar appears. 4. Adjust the purity magnets so that the red vertical bar comes to the center of the screen. (Fig. 4) Purity magnet Fig. 4 6-pole convergence magnet Measuring location 4-pole convergence magnet Purity magnet Red
VRS magnet
Board [L]
5. Loosen the provisionally fixed deflection yoke, move it to the rear, so that the entire screen becomes red, and fix it provisionally in that position. Confirm the single-color condition of the entire screen for blue and green. In case of uneven coloring, repeat the adjustments 3. and 4. for the color with the uneven coloring. 6. Receive a rainbow color bar, and use the TV reception channel fine adjustment for a black-and-white image. (Or use color pattern generator chroma signal cut.) 7. Confirm that there is no partial coloring for the entire screen. If there is partial coloring, remove the color unevenness by moving the deflection yoke slightly in forward-backward direction. If the color unevenness can not be removed, repeat the adjustments 1. to 4. 8. Tighten the screws fixing the deflection yoke and return the TV fine adjustment to the original setting.
3. Convergence Adjustment Adjustment jig Measuring location Input signal
Purpose: Adjustment of the image color deviation
Color bar generator
1. Receive a crosshatch pattern. 2. Gradually open the knobs of the 4-pole convergence magnets and match the red and blue vertical lines at the Crosshatch pattern center of the screen. Red pattern (red single color signal) Next, rotate the entire 4-pole magnets to match the red and Rainbow color pattern blue horizontal lines. (Fig. 5) TV screen (visual observation) Fig. 5 Open Rotate B (B) (A) (B) Match red and blue 4-pole convergence magnets (A) R
- 17 -
Fig. 6
Open Rotate 3. Gradually open the knobs of the 6-pole convergence magnets and match the red and blue vertical lines at the center of the screen. (At this time, red and blue will move practically at the same time.) Next, rotate the entire 6-pole magnets to match the red and blue horizontal lines to green. (Fig. 6)
(C)
(D)
6-pole convergence magnets
G R,B (D) G (C) R,B
Match red and blue to green Fig. 7 YHC YV 4. Adjust YHC, YV, and XV on the deflection yoke (Fig. 7) so that the overall convergence becomes good. (Fig. 8, 9, 10) When the convergence at the screen center is off, repeat the adjustment from item 2.
XV Deflectioin yoke Fig. 8
Picture tube board (L)
YHC
Fig. 9
YV
Fig. 10
XV
· Caution items Tilt adjustment with tilting the deflection yoke in up-down or left-right direction is not performed for this unit. Please do nottry to do this. Perform YV adjustment for left-right tilt adjustment and YHC adjustment for up-down adjustment. As the XV adjustment core can crack easily, use a nonmetallic screwdriver for the adjustment. 5. After the adjustment, apply paint lock to the magnets. 6. When the position without deviation of the three colors has been determined, insert wedges between the deflection yoke and the picture tube as shown (Fig. 11 below) to fix the deflection yoke. Wedge Fig. 11 Wedge insertion positions
2 1
Separator paper Adhesive
4 3
Insert the DY wedges at the possible .
- 18 -
H-V adjustment
· For this adjustment, receive a crosshatch pattern, check whether adjustment is required or not, and then adjust. This unit is equipped with a "16:9 mode" which identifies the input from S-video input and switches automatically to 16:9 screen size for the full mode (squeeze signal) from a video camera or DVD. (Surface broadcasts remain "4:3".) 16:9 mode also requires adjustment. Please perform adjustment on the following basis. The adjustment procedure is the same as for 4:3 mode. Screen mode Screen mode
Adjustment 1. V-HET (vertical amplitude) 2. V-LIN (vertical lilnearity)
4:3 [3F]
16:9 [3F] 2 2
Adjustment
4:3
16:9
8. H-KEY (vertical pin keystone distortion) 9. H-TPN (top pincushion) 3. H-BPN (bottom pincushion) 10. V-EHT (vertical amplitude compensation) 11. H-EHT (horizontal amplitude compensation) 2
3. V-SCR (vertical S-shape compensation) 4. V-POS (vertical position) 5. H-WID (horizontal amplitude) 6. H-POS (horizontal position) 7. H-PIN (vertical pin level) 1 Set to the 4:3 adjustment value. 2 Confirm and adjust if required. ·Adjustment
1
12. V-BKU (top vertical blanking) 13. V-BKD (bottom vertical blanking) Adjust with 16:9.
locations other than the remote control
Rear terminal board Flyback transformer Focus 2 (F2) (Horizontal line adjustment) Focus 1 (F1) (Vertical line adjustment) Coupler D4 Screen (SC)
R712 H. SIZE. FB (horizontal amplitude)
R464 V. SIZE (vertical amplitude)
S551 H. CENT (horizontal center)
4:3 mode adjustment
1. Amplitude compensation adjustment Adjustment jig Measuring location Digital tester Coupler D2, pin +, pin 1. Set the item video in the menu [ ] (Function setting) to [ ] (OFF). (Completely black screen) 2. Connect the pin of the coupler D2 with the side of the digital tester, and connect the pin with the side. 3. Turn R712 (amplitude FB) on the board [D] and adjust to 4.0V 0.1V. 4. Set the item video in the menu [ ] (Function setting) to [ ] (ON).
Adjustment location Rester completely black Input signal
- 19 -
2. Vertical adjustment Adjustment jig
Purpose: Adjustment of amplitude and linearity of the image in vertical direction. Color pattern generator Adjustment conditions Image adjustment Image menu Standard Image 4 (dynamic)
Meassuring location TV screen (visual observation) Adjustment location Remote control buttons [VOL +/-] Input signal Crosshatch pattern
A B A=B
Vertical position adjustment 1. Set the item [H-V ] (H-V adjustment) (omitted in the following) to [V-HET]. 2. Adjust with the remote control buttons [VOL +/-] to a narrower vertical amplitude and confirm the vertical center of the image (crosshatch pattern). 3. Set to the item [V-POS]. 4. Adjust with the remote control buttons [VOL +/-] so that the vertical center of the crosshatch pattern comes to the center of the screen.
A B A=B=5.5 lines
Vertical amplitude adjustment 5. Set to the item [V-HET], set to "3F", and adjust by turning R464 so that the number of horizontal lines of the crosshatch pattern becomes 5.5 lines at the top and at the bottom.
· Caution items For adjustment of V-HET, keep "3F" fixed and adjust by turning R464. However, when adjustment of the vertical amplitude with R464 is not possible, adjust the value for [V-HET] in the range from 3A to 44 (hexadecimal).
A B C A=B=C
Vertical linearity adjustment 6. Set to the item [V-LIN]. 7. Adjust with the remote control buttons [VOL +/-] so that the interval between the lines of the upper half and the lower half of the crosshatch pattern becomes uniform.
Vertical S-shape compensation adjustment 8. Set to the item [V-SCR]. 9. Adjust with the remote control buttons [VOL +/-] so that the grid size of the crosshatch pattern becomes the same at the center and at the top and the bottom. 10. Perform the adjustments 6. to 9. alternately until the line interval between the straight lines becomes uniform.
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3. Horizontal adjustment Adjustment jig
Purpose: Adjustment of amplitude and linearity of the image in horizontal direction. Adjustment conditions Image adjustment Image menu Standard Image 4 (dynamic)
Color pattern generator
Meassuring location TV screen (visual observation) Adjustment location Remote control buttons [VOL +/-] Input signal Crosshatch pattern
Set S551 (H. CENT) to the center.
Horizontal position adjustment 1. Set to the item [H-WID], narrow the horizontal amplitude with the remote control buttons [VOL +/-], and confirm the horizontal center. 2. Set to the item [H-POS]. 3. Adjust with remote control buttons [VOL +/-] so that the horizontal center of the crosshatch pattern comes to the center of the screen. A A=B B
Horizontal amplitude adjustment 4. Return to the item [H-WID]. 5. Adjust with the remote control buttons [VOL +/-] so that the number of vertical lines of the crosshatch pattern on the left and on the right becomes 7.2 lines each.
A B A=B=7.2 lines
· Caution items Horizontal linearity confirmation and setting Confirm that the horizontal linearity is not unbalanced. If it is unbalabced, switch S551 (H. CENT) and set to the best position. a. When the right side of the screen is shrunk, set S551 to the side of the termianl board, and when the left side of the screen is shrunk, set S551 to the side of the flyback transformer. b. When the balance is not too bad, leave S551 at the center. c. When S551 is not set at the center, perform horizontal position adjustment for 4:3 mode and for 16:9 mode.
Horizontal pincushion compensation adjustment 6. Set to the item [H-PIN]. 7. Adjust with the remote control buttons [VOL +/-] so that the vertical lines on teh outside of the crossshatch pattern become straight lines.
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H-TPN (top pincushion compensation) adjustment
Upper and lower pincushion compensation adjustment 8. Set to the item [H-TPN]. 9. Adjust with the remote control buttons [VOL +/-] so that the lines in the upper part of the crosshatch pattern becomes straight lines. 10. Set to the item [H-BPN]. 11. Adjust with the lower part of the crosshatch pattern becomes straight lines.
H-BPN (bottom pincushion compensation) adjustment
Keystone compensation adjustment 12. Set to the item [H-KEY]. 13. Adjust with the remote control buttons [VOL +/-] so that thevertical lines on the outside of the crosshatch pattern becomme straight lines. The vertical position changes when [H-KEY] is adjusted. Confirm [V-POS] and adjust if required. 14. Adjust the items 6. to 13. alternately until the vertical lines of the crosshatch pattern become vertical.
16:9 mode adjustment
The adjustment procedure is the same as for 4:3 mode.
1. H-V adjustment procedure for 16:9 mode Adjustment jig Color pattern generator Purpose: Adjustment for 16:9 mode
Meassuring location TV screen (visual observation) Adjustment location Remote control buttons [VOL +/-] Input signal Crosshatch pattern 1. Receive a crosshatch pattern, enter into H-V adjustment mode, and press the [ASPECT] button in the remote contorl operation section twice to set to "16:9" mode. 2. Set to adjustment values for V-HET, H-POS, V-EHT and H-EHT to the same vlaues as for the 4:3 mode. 3. Adjust H-WID. Adjust the left and right vertical lines of the crosshatch pattern to 7.4 lines each. 4. Adjust V-POS, H-PIN (Fig. 1) and H-KEY (Fig. 2). 5. Adjust the upper and lower blanking width with V-BKU and V-BKD to 50mm. 6. Confirm V-LIN and V-SCR and adjust if required.
Fig. 1
A B A = B = 7.4 lines
Fig. 2
A C D B A = B = 50mm C = D = 5.1 lines
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White balance adjustment
1. Preparatory adjustment Adjustment jig Meassuring location Input signal Studio color bar Image 4 (dynamic) Color temperature (high) Screen mode 4:3 NR OFF Power consumption - Standard Color darkness Image adjustment Hue Black level Picture Service adjustment item ] [ (Color darkness) 1 R-CUT (Service adjustment mode) G-CUT B-CUT R-DRV B-DRV Screen volume Min. (left side) [+30] (Max.) [00] Make a note of the value before adjustment [00] Min. value [7F] center value [00] Min. value [00] Min. value [0] (center) Purpose: Facilitation of white balance adjustment. 1. Establish the required conditions for white balance adjustment according to the following table.
Color pattern generator
1: At the time of adjustment, the color signal is cut to facilitate white balance adjustment.
Image menu
2. Sub-brightness adjustment Adjustment jig Color pattern generator Oscilloscope Meassuring location TP47G (board [A]) Adjustment location Remote control buttons [VOL +/-] Input signal Studio color bar 1. Receive a studio color bar. 2. Set to item [S-BRT] of the adjustment mode [HW ] (WB adjustment). 3. Press the remote control button " " and make the screen one horizontal line. 4. Adjust with the remote control buttons [VOL +/-] so that the waveform fo TP47G (board [A]) becomes DC2.45 0.05V. 5. Adjust the upper and lower blanking width with V-BKU and V-BKD to 50mm. 6. Press the remote control button " " to cancel one horizontal line.
0
2.45 0.05V
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3. White balance adjustment Adjustment jig
Purpose: Optimizing the white balance (back and white) for the image.
Color pattern generator
Meassuring location TV screen (visual observation) Input signal Studio color bar The items "1. Preparatory adjustment" and "2. Sub-brightness adjustment" must have been executed. 1. Set to the item [G-CUT] of the adjustment mode [WB ] (WB adjustment) and switch the input selector to video or similar for no input. (In the following, the adjustment mode will be omitted in the explanations.) 2. Press the remote control button " " and make the screen one horizontal line. For selection of a different adjustment item, press the button " " again for cancellation. 3. Connect the oscilloscope probe to TPL7 of the picture tube board [L], and adjust with the remote control buttons [VOL +/-] so that the waveform level against earth becomes DC170V 3.0 as shown in the following figure.
170V 3.0 Earth 0V
4. Turn the screen volume gradually to the right and adjust so that green just starts to shine. 5. Set to the item [R-CUT] of [WB ] (WB adjustment). 6. Adjust with the remote control buttons [VOL +/-] so that red becomes as bright as green and yellow is obtained. 7. Set to the item [B-CUT] of [WB ] (WB adjustment). 8. Adjust with the remote control buttons [VOL +/-] so that blue becomes as bright as green and white is obtained. 9. Turn the screen volume gradually to the left to where the three color horizontal line disappears. Press the remote control button " " to cancel the horizontal line. 11. Receive a studio color bar and either shift the fine adjustment of the TV or use the chroma cut of the color pattern generator to obtain a block-and-white screen. If the screen is greenish, repeat the adjustment 4. to 10.. 12. If the black-and-white screen is reddish, select the item [R-DRV] of [WB ] (WB adjustment), and if it is bluish, select the item [BDRV], and then adjust with the remote control buttons [VOL +/-] so that a normal black-and-white screen is obtained. Adjust [R-DRV] and [B-DRV] alternately to obtain the best condition. Confirmation · Cancel the service maintenance mode. · Select [ ] (Black level) of the menu [ ] (Image adjustment), change the level, and confirm that a normal black-andwhite screen is obtained. Also confirm the screen brightness for all channels. When the screenn is too bright (black floats) or too dark (black is subdued), use the remote control buttons [VOL +/-] to adjust the item [S-BRT] of [WB ] (WB adjustment). When a normal screen is not obtained, repeat the adjustments 1. to 12.. 13. Return the item [ ] (Color darkness) of [ ] (Subadjustment) to the recorded value. If the TV fine adjustment has been shifted, return it to the original setting.
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Focus adjustment
1. Focus adjustment Adjustment jig Measuring location Input signal Color pattern generator TV screen (visual observation) Crosshatch pattern Image adjustment Adjustment conditions Black level Picture "0" Center "+30" Maximum
Set GR to "ON". (Refer to page 10 in the Service Manual.) 1. Receive a crosshatch pattern. 2. Adjust Focus 1 so that the thickness of the vertical line in the figure on the left becomes a minimum. 3. Adjust Focus 2 so that the horizontal line thickness at the intersection of the vertical line and the horizontal line becomes a minimum. 4. Confirm that the focus at the center and at the outer circumference is balanced. In case of bad balance, repeat the adjustments 2. and 3.. Adjust with Focus 2 to a minimum.
1 2 3 4 5 6 7 8 7 6 5 4 3 2 1 1 2 3 4 5 6 5 4 3 2 1
Adjust with Focus 1 to a minimum.
Adjustment after board exchange
Adjustment after [DF] DAF board exchange
1. DAF Phase Adjustment Adjustment jig Measuring location Color pattern generator TV screen (visual observation)
Adjustment location DAF board [DF], R1577 Input signal Crosshatch pattern 1. Receive a crosshatch pattern 2. Use Focus 2 to adjust the center to underfocussed condition. 3. Adjust R1577 on the DAF board [DF] so that the left-right balance of the intersection of the horizontal line and the vertical lines becomes equal. 4. Perform focus adjustment.
1 2 3 4 5 6 7 8 7 6 5 4 3 2 1 1 2 3 4 5 6 5 4 3 2 1
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Adjustment after exchange of the video signal processing board [AG]
1. Contrast Adjustment Adjustment jig Color pattern generator Oscilloscope Meassuring location TP47G (board [A]) Board [A], coupler [A31], pin 2 Adjustment location Remote control buttons [VOL +/-] Input signal Studio color bar 1. Make the following setting in service maintenance mode. At this time, record the original values. Image adjustment Adjustment conditions Image menu Picture Black level Sharpness Dynamic Maximum (+30) Center (0) Center (+10)
(Sub-adjustment) WB (WB adjustment)
(Black level) G-CUT
2F 7F
1.95 0.22V
2. Connect TPD2 of board [D] and TP02 of board [A] to earth. 3. Receive a studio color bar. 4. Confirm that the video signal at pin of the coupler A31 of board [A] is 1.95 0.22V. 5. Select the item [ ] (PICTURE) of [ ] (Subadjustment) in service maintenance mode (omitted in the following).
3.0 0.05V
6. Adjust with the remote control buttons [VOL +/-] so that the signal at TP47G of board [A] becomes 3.0 0.05V. Next, set the value to 35 steps (hexadecimal) below this adjustment value. (Press the remote control button [VOL -] 335 times.) 7. Confirm that there is no shrinkage of the waveform. If there is, select the item [ ] (Black level) of [ ] (Sub-adjustment) and correct with the remote control buttons [VOL +/-]. 8. Return the adjustment value for [G-CUT] of "WB sub-adjustment" to the original value. Next, perform "2. Color Output, Hue Adjustment". If "2. Color Output, Hue Adjustment" is not to be performed, go to the following step 9..
9. Remove the earth from TPD2 of board [D] and TP02 of board [A].
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2. Color Output, Hue Adjustment Adjustment jig Color pattern generator Oscilloscope Measuring location Input signal Board [A], TP47G, TP47R Rainbow color pattern Image adjustment Performed after "1. Contrast Adjustment". Adjustment conditions Image menu Dynamic Color darkness Hue Picture Black level Center (0) Center (0) Maximum (+30) Center (0)
1. Make the following setting in service maintenance mode. At this time, record the original values.
(Color darkness) (Sub-adjustment) (Hue) (Black level) Fig. 1: TP47R
A B
1F 1F 1F 7F
WB (WB adjustment)
G-CUT
8 1 2 3 4 5 6 7
9 10
A:B=1:3 Fig. 2: TP47G 1.0
3 1 2 4 5 6 7 8 9 10
0.05V
2. Confirm that TPD2 of board [D] and TP02 of board [A] are connected to earth. 3. Receive a rainbow color bar. 4. Select the item [ ] (Hue) of [ ] (Sub-adjustment) and adjust the remote control buttons [VOL +/-] so that the signal phase at TP47R of board [A] becomes A:B = 1:3 as shown in the figure on the left. At this time, record the adjustment value. 5. Select the item [ ] (Color darkness) of [ ] (Subadjustment) and adjust the remote control buttons [VOL +/-] so that the signal level at TP47G of board [A] (Fig. 2) becomes 1.0 0.05V. Next, set the value to 20 steps (hexadecimal) below this adjustment value. (Press the remote control button [VOL -] 20 times.) 6. Select the item [ ] (Hue) of [ ] (Sub-adjustment) and set to a value 20 steps (hexadesimal) below the recorded value. (Press the remote control button [VOL -] 20times.) 7. Disconnect TPD2 of board [D] and TP02 of board [A] from earth.
Geomagnetic adjustment (TC-33P10N only)
1. Geomagnetic adjustment Adjustment jig Demagnetizer DC voltage meter Measuring location Input signal 1. Demagnetize the GM-Board around its preimeter with the Demagnetizer. 2. Set to control; GEOMAGNETIC SENSOR ....... ON Board [GM], TPGM1 (Pin 1,2) 3. Connect a DC voltage meter to TPGM1-2pin (GMBoard). 4. Adjust the R4863 (GM-Board) so that the Vx Out at TPGM1-2pin becomes 4.55 0.05V. 5. Connect a DC voltage meter to TPGM1-1pin (GMBoard). 6. Adjust the R4861 (GM-Board) so that the Vy Out at TPG1-1pin becomes 4.75 0.05V.
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Memo
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Schematic Diagram
Important Safety Notice
Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacture's specified parts.
Notes: 1. Resistor All resistors are cabon 1/4W resistor, unless marked as follows: Unit of resistance is OHM [9] (K=1,000, M=1,000,000). : Nonflammable : Metal Oxide : Solid : Metal Film : Wire Wound : Fuse: 2. Capacitor All capacitors are ceramic 50V capacitor, unless marked as follows: Unit of capacitance is mF, unless otherwise noted. : Temperature Compensation : Electrolytic NP : Polyester : Bipolar M m T : Metalized Polyester : Dipped Tantalum Z : Polypropylene : Z-Type 3. Coil Unit of inductance is mF, unless otherwise noted. 4. Test Point : Test Point position 5. Earth Symbol : Chassis Earth (Cold) : Line Earth (Hot) 6. Voltage Measurement Voltage is measured by a DC voltmeter. Conditions of the measurement are the following: Power Source ................................................... AC 100V, 60Hz Receiving Signal ............................................... Colour Bar signal (RF) All customer's controls ...................................... Maximum positions 7. Number in red circle indicates waveform nember. (See waveform pattern table.) 8. When arrow mark ( ) is found, connection is easily found from the direction of arrow
+
9. Indicates the major signal flow. : Video Audio 10. This schematic diagram is the latest at the time of printing and subject to change without notice. Remarks: 1. The Power Circuit contains a circuit area which uses a separate power supply to isolate the earth connection. The circuit is defined by HOT and COLD indications in the schematic diagram. Take the follwing precautions. All circuits, except the Power Circuit, are cold. Precautions a. Do not touch the hot part or the hot and cold parts at the same time or you may be shocked. b. Do not short- circuit the hot and cold circuits or a fuse may blow and parts may break. c. Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously or a fuse may blow. Connect the earth of instruments to the earth connection of the circuit being measured. d. Make sure to disconnect the power plug before removing the chassis. 2. Following diodes are interchangeable. MA150- MA162 (Replacement part) - 29 -
-
Remote Control Transmitter TNQE196
TP5 TP6 VDD 2.2 - 3.5V D1002 D1003 1 POD2 2 POD3 R1001 D1004 3 INT 4 POE0 D1001 5 POE1 TP1 6 POE2 7 POE3 TP4 Q1001 8 REM 9 VDD
+ -
TP7 POD1 28 TP8 POD0 27 TP9 POC3 26 TP10 POC2 25 TP11 POC1 24 TP12 POC0 23 TP13 POB3 22 POB2 21 POB1 20 POB0 19 POA3 18 POA2 17 POA1 16 POA0 15 1 2 3 4 5 6 7 8 9 17 25 33 41 49 57 TP14 10 18 26 34 42 50 58 TP15 11 19 27 35 43 51 59 TP16 10 XOUT 12 20 28 36 44 52 60 TP17 11 XIN 12 GND 13 RST 13 21 29 37 45 53 61 TP18 14 22 30 38 46 54 62 TP19 15 23 31 39 47 55 63 TP20 16 24 32 40 48 56 64
C1001 TP2
TP3
X1001 J1001 C1002 14 WOOUT IC1001
Key Function Table
Key No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Function MUTE SURROUND TV/AV VCR/LD:REW VCR/LD:STOP VCR/LD:FF VCR/LD:PLAY VCR/LD-POWER ON/OFF 3 2 POS. UP LD FUNCTION VCR:ADVANCE/LD:DISC A VCR:REC/LD:DISC B VCR FUNCTION 1 6 5 POS. DOWN VCR/LD:PAUSE VCR:REC Key No. 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Function MAIN MENU 4 9 8 VOL. UP N (NORMAL) VCR-CH UP/LD-SKIP + 7 2 DIGIT 0 VOL. DOWN PC VCR:CH DOWN/LD:SKIP OFF TIMER RECALL STILL CH SEARCH PIP TV/TEXT Key No. 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Function INDEX HOLD STEREO D. PNR CHANGE STROBE PIP ACTION TIME TEXT REVEAL F/T/B/ E.P. P.AI
-------
GREEN YELLOW BLUE RED POWER/OFF
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
P-BOARD/A-BOARD
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
A-BOARD/D-BOARD
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
N-BOARD/L-BOARD
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
DG-BOARD/AG-BOARD
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
H-BOARD/DF-BOARD
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
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6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
G-BOARD/G-BOARD
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6
5
4
3
2
1
A
B
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C
D
6
5
4
3
2
1
A
B
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C
D
PARTS LOCATION & MECHANICAL REPLACEMENT PARTS LIST
Note: The number on mechanical parts indicates Ref. No. Mechanical Replacement Parts List.
· Front View
· Rear View
2 DEFLECTION YOKE
13 CABINET 10 HANDLE
3 PICTURE TUBE
11 DEGAUSSING COIL
6 POWER BUTTON 8 CONTROL DOOR
7 TERMINAL DOOR 5 PANASONIC BADGE
3 AC POWER CORD 9 REAR TERMIAL FRAME
· Chassis Board Layout View
1 SPEAKER (L) L-BOARD V-BOARD K-BOARD 1 SPEAKER (L) D-BOARD P-BOARD 4 SPEAKER (C)
G-BOARD A-BOARD N-BOARD 14 TUNER DF-BOARD DG-BOARD AG-BOARD H-BOARD
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