TelefunkenTDV3000维修电路图、原理图.pdf

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1、1-9-5H97L5BLP Power Supply Block Diagram AC1001 F1001 T1.6AL/250V LINE FILTER L1003D1001 - D1004 BRIDGE RECTIFIER 2 4 Q1001 Q1003 Q1008 Q1004 7 8 1 23 4 IC1001 ERROR VOLTAGE DET T0011 MAIN CBAPOWER SUPPLY CBA 20 19 18 17 16 15 14 13 12 11 1 EV+1.2V 2 EV+1.2V 3 EV+3.3V 4 EV+3.3V 5 EV+3.3V 7 P-ON+5V 8

2、 EV+11V 9 EV+11V 6 P-ON+3.3V 17 PWRCON C-POW-SW P-ON+5V P-ON-H P-DOWN-L P-ON+44V AL-30V AL+12V TIMER+5V AL+9V AL+5V AL+20.5V/+12V Q053,Q054 SW+44V Q1053, Q1054 SW+12V Q055 SW+9V Q056 SW+5V Q051,Q052 SW+20.5V P-ON+15V F2 F1 DVD P-ON+12V Q057 CL051ACL051BCN051 1 AL+44V1 3 AL+12V3 5AL+5V(P-DOWN)5 6AL+5

3、V6 8AL+20.5V8 CL052ACL052B 1 AL-30V 3 AL+2.8V 5 AL+4V 9F1 8 1 3 5 9 8F2 CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE. NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal. CAUTION ! Fixed voltage (or Auto

4、 voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail. IC1003 +3.3V REG. IC1002 +1.2V REG. JUNCTION CBA CN051A 1 3 5 6 8 1 3 5 6 8 10 12 14 18 17 10 12 14 18 17 -FL EV+3.3V DVD P-ON+3.3V DVD P-ON+5V Q1055 CL1051 SW+5V Q1052 SW+3.3V Q058 Q059 SW+5V HOT COLD