85
Fig.6
BD101 is a rectifier in which there are 4 build-in diodes, inverting AC to DC.
CP111 is used to smooth the wave from rectifier. FR101, and FR201 is a fuse resistor to
protect the following circuit when inrush current is too large.
UP101 is a current-mode PWM controller with excellent power-saving operation, the number
of external components and drastically simplifies the PFC implementation .It also integrates high
safety protection features that make the SSC2012 a driver for robust and compact PFC stages.
LP101,LP102,QP101,QP102, DP104,DP105 are boost &PFC circuit, It`s boost to 400V.
US101 is a current-mode PWM controller with excellent power-saving operation, It features a
high-voltage current source to directly supply the startup current from bulk capacitor and further to
provide lossless startup circuit. Max start-up current for US101 is -1.5mA, When current flow from
the bulk capacitor CP111 through US101 PIN7 to start up US101, Meanwhile, the VCC supply
current is as low as2.5mA thus most of the HV current is utilized to change the VCC capacitor
CS104, When Vcc (Pin5) reaches UVLO(on) threshold ,The US101 is powered on to start issuing
Содержание LC-32SV40U
Страница 1: ...SERVICE MANUAL LCD COLOR TELEVISION MODEL LC 32SV40U LC 42SV50U LC 46SV50U ...
Страница 3: ...2 ...
Страница 4: ...3 ...
Страница 9: ...8 LC 46SV50U ...
Страница 13: ...12 Fig 8 1 Remove the 4 screws and disconnect 4 cables Detach the Main board ASSY as Fig 9 ...
Страница 14: ...13 Fig 9 2 Remove the 5screws and 2 Cables Detach the Power board as Fig 10 ...
Страница 15: ...14 Fig 10 3 Detach the IR board as Fig 11 Fig 11 ...
Страница 16: ...15 4 Detach the Key Pad ASSY as Fig 12 Fig 12 5 Detach the Speakers as Fig 13 Fig 14 Fig 13 Fig 14 Pull ...
Страница 22: ...21 3 Detach the IR board as Fig 11 Fig 11 4 Remove the 2screws Detach the Key Pad ASSY as Fig 12 Fig 12 ...
Страница 29: ...28 Fig 10 2 Remove the 6screws and 2 Cables Detach the Power board as Fig 11 Fig 11 ...
Страница 32: ...31 Fig 17 4 Remove the 2 screws at the upside of panel as Fig 18 Fig 18 ...
Страница 63: ...62 3 WIRING DIAGRAM LC 32SV40U LC 42SV50U ...
Страница 64: ...63 LC 46SV50U ...
Страница 65: ...64 CHAPTER 7 PRINTED WIRING DIAGRAM 1 MAIN UNIT PRINTED WIRING BOARD LC 32SV40U LC 42SV50U LC 46SV50U TOP ...
Страница 66: ...65 BOTTOM ...
Страница 80: ...79 Fig 4 Fig 5 ...
Страница 84: ...83 Fig 4 ...
Страница 85: ...84 Fig 5 ...
Страница 97: ...96 2 CABINET PARTS LC 32SV40U CABINET PARTS ...
Страница 99: ...98 LC 42SV50U CABINET PARTS ...
Страница 101: ...100 LC 46SV50U CABINET PARTS ...
Страница 104: ...103 4 PACKING PARTS PACKING PARTS LC 32SV40U ...
Страница 106: ...105 LC 42SV50U PACKING PARTS ...
Страница 108: ...107 LC 46SV50U PACKING PARTS ...