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Now downloading free:Mastech 3003, 3020  [report bad file]  

Download Mastech 3003, 3020 docs - Computer power supply, dc power supply, atx , switching, high voltage, uninterruptible power supply, laptop and other service manual and repair information.





File information:
File name:Mastech power Supply 3020.rar
[preview 3003, 3020] new window
Size:90 kB
Extension:
MD5 Checksum:1f6881f5570baae587ec474f7fd83575
Mfg:

Mastech

Model:

3003, 3020

Original Chassis:
Descr:Laboratory power supply, various chinese manufacturers, like Mastech. These schematic apply for various models too, with different output currents, and digital or analog instruments. Specially useful for model 3020 and 3003.
Group:Electronics > Consumer electronics > Power supply >
Uploaded:2008-03-22 14:40:20
User:Flatline
Multipart:No multipart

Information about the files in archive:
Decompress result:OK
Extracted files:2
File nameText
HY3020 sch.pdf+12V 1 3 R1 430F/0.5W DW6 D1 1N4002 D2 1N4002 2 C1 220uF/25V C3 220uF/25V D5 1N4002 U1 Vin L7812CV GND Vout K2 K1 D6 1N4002 K3 D13 1N4002 J2 2 1 J4 8 7 6 5 4 3 2 1 7 14 15 11 6 12 9 8 10 C4 47uF/25V R2 10KF/0.5W R3 470F/0.5W 11 WL431 R4 10KF Q6 A708 R5 33KF R6 24KF 12 D3 1N4002 D4 1N4002 FAN+ C2 R?39J/5W FAN220uF/25V R7 560J/2W R8 1KF/0.5W -6V -15V D9 1N5408 D10 1N5408 DW1 6.2V Q3 2N3055 Q7 2N3055 Q8 C? 2200uF/16V 100F R98 R100 R102 2N3055 R10 10KF R11 100J/5W Q? 2N3055 Q1 C1008 F E D7A~G 1N5408 4 K3-2 K3-3 D8A~G 1N5408 Q2 D313 C6A~D 4700uF/63V DW2 D11 2.4V 1N4002 R12 1KF R13 10F/0.5W C8 100pF 6 LED1 5/RED 10 -6V C9 7 100pF 6 +12V U3 LED2 5/RED 2 3 PCB-HY3002D(1) C10 100pF -6V T-HY3020 11 C1* 104J/63V VR6 6.8K R23 HA17741 7.5KF 5 1 4 R? 560F B C7 7 U2 100pF 6 2 VR3 6.8K 3 8 PCB-HY3002D(1) HA17741 5 1 4 VR2 5K 9 VR5 200 R103 0.36J/5W R101 0.36J/5W R99 0.36J/5W Q8B R98B R100B R102B 100F 2N3055 (CUR+) Q7B 2N3055 Q3B 2N3055 R101B 0.36J/5W R99B 0.36J/5W PCB-HY3003(1) Q5 C1008
HY3020.pdf+12V 1 3 R1 430F/0.5W DW6 D1 1N4002 D2 1N4002 2 C1 220uF/25V C3 220uF/25V D5 1N4002 U1 Vin L7812CV GND Vout K2 K1 D6 1N4002 K3 D13 1N4002 J2 2 1 J4 8 7 6 5 4 3 2 1 7 14 15 11 6 12 9 8 10 C4 47uF/25V R2 10KF/0.5W R3 470F/0.5W 11 WL431 R4 10KF Q6 A708 R5 33KF R6 24KF 12 D3 1N4002 D4 1N4002 FAN+ C2 R?39J/5W FAN220uF/25V R7 560J/2W R8 1KF/0.5W -6V -15V D9 1N5408 D10 1N5408 DW1 6.2V Q3 2N3055 Q7 2N3055 Q8 C? 2200uF/16V 100F R98 R100 R102 2N3055 R10 10KF R11 100J/5W Q? 2N3055 Q1 C1008 F E D7A~G 1N5408 4 K3-2 K3-3 D8A~G 1N5408 Q2 D313 C6A~D 4700uF/63V DW2 D11 2.4V 1N4002 R12 1KF R13 10F/0.5W C8 100pF 6 LED1 5/RED 10 -6V C9 7 100pF 6 +12V U3 LED2 5/RED 2 3 PCB-HY3002D(1) C10 100pF -6V T-HY3020 11 C1* 104J/63V VR6 6.8K R23 HA17741 7.5KF 5 1 4 R? 560F B C7 7 U2 100pF 6 2 VR3 6.8K 3 8 PCB-HY3002D(1) HA17741 5 1 4 VR2 5K 9 VR5 200 R103 0.36J/5W R101 0.36J/5W R99 0.36J/5W Q8B R98B R100B R102B 100F 2N3055 (CUR+) Q7B 2N3055 Q3B 2N3055 R101B 0.36J/5W R99B 0.36J/5W PCB-HY3003(1) Q5 C1008

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