1 Safety Precaution 1.1. General Guidelines 1.3. Leakage Current Hot Check (See Figure 1.) 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment 1. Plug the AC cord directly into the AC outlet. Do not use which are important for safety. These parts are marked by an isolation transformer for this check.
2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"...
2.3.2.3. How to Replace the Fuse A replacement fuse cover can be purchased from your local Panasonic Dealer. 1. Remove the Fuse Cover with a screwdriver. If the fitted moulded plug is unsuitable for the socket outlet in your home then the fuse should be removed and the plug cut off and disposed of safety.
2.4. How to Replace the Lithium Battery 2.4.1. Replacement Procedure 1. Remove the FRONT PCB. (Refer to Disassembly Procedures.) 2. Remove the Lithium battery (Ref. No. “B6801” at component side of FRONT PCB) and then replace it into new one. NOTE: This Lithium battery is a critical component.
3 Service Navigation 3.1. Introduction This service manual contains technical information, which allow service personnel’s to understand and service this model. Please place orders using the parts list and not the drawing reference numbers. If the circuit is changed or modified, the information will be followed by service manual to be controlled with original service manual. 3.2.
3.3. How to Define the Model Suffix (NTSC or PAL model) There are six kinds of SDR-SW20/SW28. • a) SDR-SW20P • b) SDR-SW20PC • c) SDR-SW20E/EB/EF/EG/EP • d) SDR-SW20EE • e) SDR-SW20GN • f) SDR-SW20PL/GC, SDR-SW28GK What is the difference is that the “INITIAL SETTING” data which is stored in Flash ROM mounted on Main PCB.
5 Service Fixture & Tools 5.1. When Replacing the Main PCB After replacing the MAIN PCB, be sure to achieve adjustment. The adjustment instruction is available at “software download” on the “Support Information from NWBG/VDBG-PAVC” web-site in “TSN system”, together with Maintenance software. 5.2.
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3.The voltage being indicated on the schematic diagram is measured in "Standard-Playback" mode when there is no specify mode is mentioned. Model No. SDR-SW20P SDR-SW20EF 4.Although the voltage and waveform available on here is measured with standard frame, it may be differ from actual measurement due to modification of circuit and so on.
S2. Voltage Chart Note) Indicated voltage values are the standard values for the unit measured by the DC electronic circuit tester (high-impedance) with the chassis taken as standard. Therefore, there may exist some errors in the voltage values, depending on the internal impedance of the DC circuit tester. S2.1.
S4.11. Syscon Schematic Diagram SDR-SW20 Series Syscon Section (Main P.C.B. (10/12)) Schematic Diagram Q6001 TO POWER 2SB0970X0L PW_CPU_3V PW_REGD3V TO POWER PW_REGD1R5V PW_REGD1R5V (TMP19A63CDXBG0-0102) (TMP19A63F10XBG) IC6001 C2DBLJ000160 TO RTC R6050 1500 S_RTC_DT S_RTC_DO S_RTC_SCK RTC_CS P_OFF MICOM_RST TO POWER D_GND RX6006 D1H81034A024 TO LENS DRIVE...
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SDR-SW20 Series Syscon Section (Main P.C.B. (10/12)) Schematic Diagram D6001 MA3S132E0L BAT_V TO MAIN_CN LCD_RVS LCD_RVS2 ADP_V R6008 10K[D] MICOM_T IC6001 TO POWER C2DBLJ000160 D6003 MA2J11100L CHG_I (TMP19A63CDXBG0-0102) CCD_ON_H (TMP19A63F10XBG) CTL4_ON_H PW_POW_VREF TO RTC MICOM_T LCD_RVS BAT_V TO CHARGE LCD_RVS2 ADP_V BAT_V MICOM_T...
S4.13. USB Host Schematic Diagram TO VIDEO VBUS_CURDE_L VBUS_ON_H R3604 R3613 Q3601 TO POWER 0[22] 1R0[22] 2SB0970X0L PW_REGA5V L3601 G1C100KA0124 PW_R3R2V_UH1 PW_REGD3R2V LB3601 PW_R1R8V_UH2 PW_REGD1R8V TO JACK J0JHC0000078 VBUS TO POWER C3608 D_GND F1G0J1050007 R3633 C3609 X3601 C3618 H0J120500042 F1G0J1050007 C3620 BUS8_ATDA2 BUS8_ATDA1...
S6. Replacement Parts List Note: 1.* Be sure to make your orders of replacement parts according to this list. 2. IMPORTANT SAFETY NOTICE Components identified with the mark have the special characteristics for safety. When replacing any of these components, use only the same type. 3.
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SDR-SW20P-S/R,PC-S/R,PL-S/R,EG-S/R,E-S/R,EB-S/R,EF-S/R,EP-S/R,GC-S/R,GN-S/R,EE-S/R, SDR-SW28GK-S/R vol.2 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks C1071 F1G0J1050007 C.CAPACITOR CH 6.3V 1U VEP03H40A MAIN P.C.B. E.S.D.(RTL) P,PC C1072 F1J1A475A023 C.CAPACITOR CH 10V 4.7U VEP03H40H MAIN P.C.B. E.S.D.(RTL) PL C1073 ECJ0EB1E472K C.CAPACITOR CH 25V 4700P...
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SDR-SW20P-S/R,PC-S/R,PL-S/R,EG-S/R,E-S/R,EB-S/R,EF-S/R,EP-S/R,GC-S/R,GN-S/R,EE-S/R, SDR-SW28GK-S/R vol.2 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks C3429 F1G1C104A080 C.CAPACITOR CH 16V 0.1U C6909 F1G1C104A080 C.CAPACITOR CH 16V 0.1U C3434 F1G1C104A080 C.CAPACITOR CH 16V 0.1U C3435 ECJ0EB1C103K C.CAPACITOR CH 16V 0.01U CX6001 F1L1E103A065 C.CAPACITOR CH 25V 0.01U...
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SDR-SW20P-S/R,PC-S/R,PL-S/R,EG-S/R,E-S/R,EB-S/R,EF-S/R,EP-S/R,GC-S/R,GN-S/R,EE-S/R, SDR-SW28GK-S/R vol.2 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks L1312 G1C4R7MA0073 COIL 4.7UH R321 ERJ2GEJ332 M.RESISTOR CH 1/16W 3.3K L3302 G1C330MA0111 CHIP INDUCTOR 33UH R322 ERJ2GEJ332 M.RESISTOR CH 1/16W 3.3K...
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SDR-SW20P-S/R,PC-S/R,PL-S/R,EG-S/R,E-S/R,EB-S/R,EF-S/R,EP-S/R,GC-S/R,GN-S/R,EE-S/R, SDR-SW28GK-S/R vol.2 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks R1422 ERJ2GEJ152 M.RESISTOR CH 1/16W 1.5K R3448 D0YAR0000007 M.RESISTOR CH 1/16W R1481 ERJ2GEJ333 M.RESISTOR CH 1/16W 33K R3451 ERJ2GEJ223 M.RESISTOR CH 1/16W 22K...
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SDR-SW20P-S/R,PC-S/R,PL-S/R,EG-S/R,E-S/R,EB-S/R,EF-S/R,EP-S/R,GC-S/R,GN-S/R,EE-S/R, SDR-SW28GK-S/R vol.2 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks R6050 ERJ2GEJ152 M.RESISTOR CH 1/16W 1.5K R6900 ERJ2GEJ104 M.RESISTOR CH 1/16W 100K R6901 ERJ2GEJ101 M.RESISTOR CH 1/16W 100 R6902 ERJ2GEJ102X M.RESISTOR CH 1/16W 1K...