Panasonic TC-21Z99R Service Manual
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Panasonic TC-21Z99R Service Manual

Panasonic TC-21Z99R Service Manual

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Specifications
Power Source :
Power Consumption :
Aerial Impedance :
Receiving System :
Receiving Channels :
VHF
UHF
CATV
Intermediate Frequency :
Video
Sound
AC AUTO 110-240V, 50/60 Hz
75Ω unbalanced
Coaxial type
17 Systems
1-11 PAL B (Australia & N.Zealand)
1-12 PAL/SECAM D
1-12 NTSC M JAPAN
2-12 PAL/SECAM B, G
2-13 NTSC M U.S.A.
21-69 PAL G I/SECAM B, G, K1
28-69 PAL G (Australia)
13-56 PAL D
13-52 NTSC M JAPAN
14-69 NTSC NTSC M U.S.A.
S1-S41 (Hyper)
38.0 MHz
31.5 MHz (D, K, K1)
32 MHz (I)
32.5 MHz (B, G)
33.5 MHz (M)
TC-21Z99R
GP31 Chassis
Colour
88W
Video / Terminals :
RAV In
Monitor Out
High Voltage :
Picture Tube :
Audio Output :
Dimensions :
Mass :
Specifications are subject to change without notice.
Mass and dimensions shown are approximate.
ORDER NO. PMI-T0705-04
Colour Television
33.75 MHz (SECAM)
Audio In Approx. 400mVrms
Video Out 1 Vp-p 75Ω
Audio Out Approx. 400mVrms
Measured diagonally,
© 2005 Matsushita Electric Industrial Co., Ltd. All
rights
reserved.
Unauthorized
distribution is a violation of law.
33.57 MHz (PAL)
33.6 MHz (SECAM)
34.42 MHz (NTSC)
AV1, 2
Video In 1 Vp-p 75Ω
27.5kV±1.5
at zero beam current
A51KQK99X03
51cm (21 inches)
90° deflection
16W
Height : 464.75 mm
Width : 612 mm
Depth : 476.3 mm
21.5 kg (Net Wt.)
copying
and

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Summary of Contents for Panasonic TC-21Z99R

  • Page 1 ORDER NO. PMI-T0705-04 Colour Television TC-21Z99R GP31 Chassis Specifications Power Source : AC AUTO 110-240V, 50/60 Hz Colour 33.57 MHz (PAL) Power Consumption : 33.6 MHz (SECAM) Aerial Impedance : 75Ω unbalanced 33.75 MHz (SECAM) Coaxial type 34.42 MHz (NTSC)

  • Page 2: Table Of Contents

    TC-21Z99R CONTENTS Page Page 1 Safety Precautions 2.7. PAL Colour Output Level Adjustment 1.1. General Guide Lines 2.8. CRT VRS Adjustment 1.2. Leakage Current Cold Check 2.9. CRT Cut Off Adjustment 1.3. Leakage Current Hot Check (Fig. 1) 2.10. Purity and Convergen Adjustment 1.4.

  • Page 3: Safety Precautions

    TC-21Z99R 1 Safety Precautions 1.1. General Guide Lines 1. It is advisable to insert an isolation transformer in the AC supply before servicing this hot chassis. 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.

  • Page 4: Gp31 Chassis Block Diagram

    TC-21Z99R 1.5. GP31 Chassis Block Diagram...

  • Page 5: Service Hints

    TC-21Z99R 2 Service Hints 2.1. Service Position for E-Board 1. Remove the back cover. 2. Stand the TV set as shown in Fig. 2. 3. Remove the A-Board from the TV set by pulling the main board out as shown in Figure 2.

  • Page 6: B Voltage Confirmation

    TC-21Z99R 2.3. +B Voltage Confirmation 2.5. RF AGC Adjustment Item / preparation Item / preparation 1. Operate the TV set. 1. Receive a colour bar signal at an RF level of 69 ± 1-2 dBU with 75Ω loaded. 2. Set control as follows : 2.

  • Page 7: Pal Colour Output Level Adjustment

    TC-21Z99R 2.7. PAL Colour Output Level Adjustment 1. Receive the PAL B/G studio colour bar pattern and adjust local frequency at the best tuned position. 2. Pic Menu: Dynamic Normal, Confirm Contrast - 100 DAC, Sub Contrast - 21 dac.

  • Page 8: Crt Vrs Adjustment

    TC-21Z99R 2.8. CRT VRS Adjustment Adjustment of CRT VRS 1. Preparation a. Set DY to CRT not to tilt up and down left and right deflection. b. Set CY to CRT and set CY magnet primarily (Fig. 1) Purity magnet : Set purity magnet that 2 magnets are (TOP POSITION) VRS magnet : Set purity magnet 2 magnets are (HORIZONTAL POSITION) 2.
  • Page 9 TC-21Z99R Fig. 10 Fig. 11 Notes: 1. Wedge A, B and C should be inserted following the sequence of 1, 2 and 3 shown in Fig. 11. 2. The wedges should be set 120° apart from each other. 3. Be certain that three wedges are firmly fixed and the Deflection Yoke is tightly clamped in place.

  • Page 10: Crt Cut Off Adjustment

    TC-21Z99R 2.9. CRT Cut Off Adjustment Preparation: 1. Connect the oscilloscope probe to TPL5. 2. Screen VR min. 3. Set the data Sub Bright, Bright. 4. In service Mode at “Bright” dac press [5] in factory mode to enter vertical line and adjust by volume down or up button.

  • Page 11: White Balance Adjustment

    TC-21Z99R Convergence 1. Apply a crosshatch pattern signal and Normalize Contrast 4. Adjust Red and Blue with Green line at centre of the screen control to the maximum positions. by rotating (RB)-G static convergence magnetic rings. 2. Adjust Brightness until the grey position of the crosshatch 5.

  • Page 12: Conductor Views

    TC-21Z99R 3 Conductor Views...

  • Page 13: Schematic Diagram

    TC-21Z99R 4 Schematic Diagram...
  • Page 14 TC-21Z99R...

  • Page 15: A Board

    TC-21Z99R 4.1. A Board 4.1.1. A Board (1/5) <1A> <2A> <3A> <4A> <5A> <6A> <7A> <8A> <9A>...
  • Page 16 TC-21Z99R 4.1.2. A Board (2/5) <1A> <1B> <2B> <2A> <3B> <3A> <4A> <4B> <5A> <5B> <6A> <6B> <7B> <7A> <8B> <8A> <9A> <9B>...
  • Page 17 TC-21Z99R 4.1.3. A Board (3/5) <1B> <1C> <2C> <2B> <3C> <3B> <4C> <5C> <4B> <6C> <5B> <6B> <7C> <7B> <8B> <8C> <9B> <9C>...
  • Page 18 TC-21Z99R 4.1.4. A Board (4/5) <1C> <1D> <2C> <2D> <3C> <3D> <4D> <4C> <5C> <6C> <5D> <6D> <7C> <7D> <8C> <9C>...
  • Page 19 TC-21Z99R 4.1.5. A Board (5/5) <1D> <2D> <3D> <4D> <5D> <6D> <7D>...

  • Page 20: L Board

    TC-21Z99R 4.2. L Board 4.2.1. L Board (1/3) <1A> <2A> <3A> <4A> <5A> <6A> <7A>...
  • Page 21 TC-21Z99R 4.2.2. L Board (2/3) <1A> <1B> <2A> <2B> <3A> <3B> <4A> <5A> <4B> <5B> <6B> <6A> <7A> <7B>...
  • Page 22 TC-21Z99R 4.2.3. L Board (3/3) <1B> <2B> <3B> <4B> <5B> <6B> <7B>...

  • Page 23: Parts Locations

    TC-21Z99R 5 Parts Locations...

  • Page 24: Replacement Parts List

    TC-21Z99R 6 Replacement Parts List...

  • Page 25: Replacement Parts List

    TC-21Z99R 6.1. Replacement Parts List Ref. Part No. Part Name & Description Remarks C2120 F2A1H3R3A182 E 3.3F, 50V Ref. Part No. Part Name & Description Remarks C2121 ECJ2VF1C104Z C 0.1F, Z, 16V C2124 F2A1C100A180 E 10F,16V A51KQK99X03 PICTURE TUBE ITC...
  • Page 26 TC-21Z99R Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C610 ECJ2VB1H103J C 0.01F, 50V D1132 B0BA5R400008 DIODE C612 ECJ2VB1H472K C 4700PF, K, 50V D1140 B0BA5R600016 DIODE C613 ECJ2VB1H472K C 4700PF, K, 50V...
  • Page 27 TC-21Z99R Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L125 G0C8R2KA0030 PEAKING COIL R1019 ERJ6ENF4700V M 470 OHM, J, 1/10W L181 G0C100K00008 COIL R1020 ERJ6ENF8200V M 820 OHM, J, 1/10W L182 TALV35VB6R8K...
  • Page 28 TC-21Z99R Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R3032 D0GD101JA017 F 100OHM, J, 1/10W R604 ERJ6GEYJ101V M 100OHM, J, 1/10W R3033 D0GD101JA017 F 100OHM, J, 1/10W R605 ERJ6GEYJ101V M 100OHM, J, 1/10W...
  • Page 29 TC-21Z99R Ref. Part No. Part Name & Description Remarks JS112 ERJ6GEY0R00V M 0OHM, J, 1/10W JS2132 ERJ6GEY0R00V M 0OHM, J, 1/10W JS2140 ERJ6GEY0R00V M 0OHM, J, 1/10W JS2141 ERJ6GEY0R00V M 0OHM, J, 1/10W JS3001 ERJ6GEY0R00V M 0OHM, J, 1/10W JS3129...

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