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Service Manual
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Order No. MTV0308266C3
Colour Television
l TC-29PS60K
GP3 Chassis
Specification
Power Source AC Auto 110-240 V, 50/60 Hz
Power Consumption 129 W
Standby condition : 2 W
Aerial Terminal Impedance : 75, Coaxial type
Tuning System Frequency Synthesizer
Auto Search Tuning
Pos : 100 Positions
Receiving System 17 Systems
Receiving Channels Regular TV
VHF BAND 2-12 (PAL/SECAM B, K1)
0-12 (PAL B AUST.)
1-9 (PAL B N.Z.)
1-12 (PAL/SECAM D)
1-12 (NTSC M Japan)
2-13 (NTSC M U.S.A)
UHF BAND 21-69 (PAL G, H, I/SECAM G, K, K1)
28-69 (PAL B AUST.)
13-57 (PAL D, K)
13-62 (NTSC M Japan)
14-69 (NTSC M U.S.A.)
CATV S1-S20 (OSCAR)
1-125 (U.S.A. CATV)
C13-C49 (JAPAN)
S21-S41 (HYPER)
Z1-Z37 (CHINA)
Intermediate Frequency 38.0 MHz
Video 31.5 MHz (D, K)/ 32.5 MHz (B, G)
32.0 MHz (I)/ 32.5 MHz (M)
Sound 33.57 MHz (PAL)/
Colour 33.6 MHz (SECAM)
34.42 MHz (NTSC)/
33.75 MHz (SECAM)
Receiving Stereo Sound System AV STEREO
Video/Audio/Terminals IN S-Video Y:1.0Vp-p 75
AV 1, 2, 3, 4 DVD IN S-Video C:0.3Vp-p 75
Y/ PB/ PR (Phone Type) Y:1.0Vp-p 75 PB,
PR:0.7Vp-p 75 Video 1.0Vp-p
75 Audio Approx. 400mV 47K
Video 1.0Vp-p 75
Monitor Out Audio Approx. 400mV 47K
High Voltage 31.0±1.0V at zero
beam current
Picture Tube A68QCP83XSA Type 29 (68 cm)
Measured diagonally,
104° deflection
Audio Output 16 W speaker
Dimensions (W x D x H) 820 mm x 500 mm x 566 mm
Weight (Mass) 43.5 kg (Net)
Note:
Specifications are subject to change without notice. Mass and dimensions shown are approximate.
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4 Market Mode Function
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Outline:
MPU controls the functions switching for each ICs through IIC bus in this chassis. The following
setting and adjustment can be adjusted by remote control in Market Mode.
1. Selection of Market Mode
Adjust the VOLUME "zero" and set OFF TIMER Button to 30 min. Then, simultaneously
press the RECALL Button on the remote control and the VOLUME DOWN button - the TV
set.
2. Selection of CHK Mode
Cursor moves each CHK Mode by pressing "1" or "2" of 10 key button on the remote control.
3. Press Self-Check Button
Press the vol. down button on front panel together press the off timer button on remote.
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5.10 WHITE BALANCE (MARKET MODE
CHK 3)
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Preparation
1. Receive a colour bar signal with colour "OFF", and operate the TV set for more than 30
minutes.
2. Set the picture menu to "DYNAMIC NORMAL" and the AI to off.
3. Connect an oscilloscope to TPL7 with DC mode.
4. Set the TV set to Market Mode : white balance adjustment (CHK 3).
5. Screen VR : Min.
6. Set the data level of RGB CUT OFF / DRIVE and SUB BRIGHT.
Display Data Level
R-CUT OFF 63
G-CUT OFF 128
B-CUT OFF 63
R-DRIVE 128
B-DRIVE 128
SUB BRIGHT 63
Adjustment of Low Light
1. Adjustment Sub Bright, so that Y = 6.3 ± 1.0 nit.
2. Adjustment R-CUT OFF, so that X = 0.243 ± 0.010 nit.
3. Adjustment G-CUT OFF, so that Y = 0.255 ± 0.010 nit.
Adjustment of Low Light
1. Adjustment Sub Bright, so that Y = 150 nit.
2. Adjustment R-Drive, so that X = 0.260 ± 0.010 nit.
3. Adjustment B-Drive, so that Y = 0.265 ± 0.010 nit.
Adjustment
1. Select G-CUTOFF adjustment mode and collapse vertical scan.
2. Adjust G-CUTOFF control to become the DC=0 V to video level at 180 V as shown in Fig. 1.
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Fig. 1
3. Slowly turn the screen control clockwise until a green colour horizontal line appears on the
picture tube. This is the setting point for the screen control.
Note:
Do not adjust the G-CUTOFF setting in the following procedure.
4. Adjust the remaining R and B-CUTOFF controls so as to get a white horizontal line on the
screen.
5. Return to full field SCAN by pushing the position 5 key on the remote control.
6. Adjust the R-Drive and B-Drive controls as to obtain a uniform white on the white bar of the
greyscale pattern.
7. Confirm correct B/W rendition and greyscale tracking or repeat CUTOFF and drive control
setup.
Note:
Write down the original value for each address adjustment before adjusting anything.
Fig. 2
8. Wedge A shown in Fig. 2 should be fixed within a range of 45° to the left of the vertical line
as shown.
9. After inserting wedge A, insert wedges B, C and D.
The wedges should be set 90° apart from each other.
10. Be certain that the four wedges are firmly fixed and the Deflection Yoke is tightly clamped in
place otherwise the Deflection Yoke may shift its position and cause a loss of convergence and
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7 Schematic Diagrams
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7.1 SCHEMATIC DIAGRAM FOR MODEL (GP3 CHASSIS)
7.2 A BOARD
7.2.1 A BOARD 1 / 5
7.2.2 A BOARD 2 / 5
7.2.3 A BOARD 3 / 5
7.2.4 A BOARD 4 / 5
7.2.5 A BOARD 5 / 5
7.3 K BOARD
7.3.1 K BOARD 1 / 3
7.3.2 K BOARD 2 / 3
7.3.3 K BOARD 3 / 3
7.4 L BOARD
7.4.1 L BOARD 1 / 3
7.4.2 L BOARD 2 / 3
7.4.3 L BOARD 3 / 3
7.5 YUV BOARD
7.5.1 YUV BOARD 1 / 2
7.5.2 YUV BOARD 2 / 2
7.6 YC BOARD
7.6.1 YC BOARD 1 / 2
7.6.2 YC BOARD 2 / 2
7.7 EW BOARD
7.7.1 EW BOARD 1 / 2
7.7.2 EW BOARD 2 / 2
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