Summary of Contents for Panasonic TX-21FX20RSF-IRAN
Page 1
ORDER NO. MTV0601427CE Colour Television TX-21FX20RSF-IRAN GP41 Chassis Specifications Power Source : AC SINGLE 220-240V, 50/60 Hz Audio Terminal : AV 1, 2, YUV, MONITOR OUT Power Consumption : RAV In Video In 1 Vp-p 75Ω Aerial Impedance : 75Ω unbalanced Audio In Approx.
TX-21FX20RSF-IRAN 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.
TX-21FX20RSF-IRAN 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
TX-21FX20RSF-IRAN NOTE :- Service mode 2 options bit. 6. Service Mode 3 Controls To enter SERVICE 3; press channel key ‘1’ in SERVICE 2 entry screen. 7. Service Mode 3 Function...
TX-21FX20RSF-IRAN 2.3. Adjustment for White Balance Preparation: 1. Receive the white balance pattern and aging should have been performed over 30 minutes. 2. Set the picture menu to DYNAMIC NORMAL. 3. Degausse the CRT face. 4. Fix the CRT colour analyzer receiver unit to CRT face.
TX-21FX20RSF-IRAN 2.5. Adjustment Procedure 2.5.1. +B Voltage Item / preparation 1. Operate the TV set. 2. Set control as follows : Brightness ... minimum Contrast ....minimum Adjustment procedure 1. Confirm the DC voltage at the indicated test points, as follows : TPA 15 : 3.35 ±...
TX-21FX20RSF-IRAN 2.6. Adjustment Before Colour Purity, Convergence and White Balance adjustment are attempted, V. Height, H. Centre and Focus adjustments must be completed. Colour Purity Convergence 1. Set the Brightness and Contrast controls to their maximum 1. Apply a crosshatch pattern signal and Normalize Contrast positions.
Page 10
TX-21FX20RSF-IRAN 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 11
TX-21FX20RSF-IRAN 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.
TX-21FX20RSF-IRAN 6.1. Replacement Parts List Ref. Part No. Part Name & Description Remarks C3046 ECJ2VC1H222J C 2200PF, J, 50V Ref. Part No. Part Name & Description Remarks C305 F2A1C471A339 E 470UF, 16V C306 D0GB240JA008 F 24,J, 1/16V A51LYZ295X PICTURE TUBE...
Page 26
TX-21FX20RSF-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks C640 ECJ1VF1H104Z C 0.1UF, Z, 50V D515 B0HAMP000090 DIODE C642 ECJ1VF1H104Z C 0.1UF, Z, 50V D520 B0ACDJ000009 DIODE C645 ECJ1VF1H104Z C 0.1UF, Z, 50V...
Page 27
TX-21FX20RSF-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks L609 J0JKB0000034 EMI FILTER R1201 ERJ3GEYJ102 M 1KOHM,J,1/16W L611 G0C100K00008 COIL R1202 ERJ3GEYJ102 M 1KOHM,J,1/16W L625 J0JKA0000038 BEAD CORE R1228 ERJ3GEYJ101 M 100OHM,J,1/16W...
Page 28
TX-21FX20RSF-IRAN Ref. Part No. Part Name & Description Remarks Ref. Part No. Part Name & Description Remarks R398 ERJ3GEYJ101 M 100OHM,J,1/16W R701 ERJ3GEYJ103 M 10KOHM,J,1/16W R399 D0AE301JA046 C 300OHM,J, 1/4W R824 ERX12SJR27E M 0.27OHM,J, 1/2W R401 ERDS2TJ104 C 100KOHM,J, 1/4W...
Page 29
TX-21FX20RSF-IRAN Ref. Part No. Part Name & Description Remarks JS3131 ERJ3GEY0R00 M 0OHM,J,1/16W JS3132 ERJ3GEY0R00 M 0OHM,J,1/16W JS3137 ERJ3GEY0R00 M 0OHM,J,1/16W JS3139 ERJ3GEY0R00 M 0OHM,J,1/16W JS3140 ERJ3GEY0R00 M 0OHM,J,1/16W JS631 ERJ3GEY0R00 M 0OHM,J,1/16W JS632 ERJ3GEY0R00 M 0OHM,J,1/16W JS633 ERJ3GEY0R00 M 0OHM,J,1/16W...
Need help?
Do you have a question about the TX-21FX20RSF-IRAN and is the answer not in the manual?
Questions and answers