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Trouble Shooting

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Examination & Reparation for Remote Control Receive system

To test the power feet of Ir1 receive 
head in front control board is ok or 
not with multimeters, feet 3 of IR1 
receive head is +5V, feet2 is ground, 
feet 1 is control code output

To measure feet one of IR1 receiver head 
is with remote control signal or not?

To measure feet 76 on IC (U8 C1610) 
on decode board is with remote signal 
input or not?

To examine and repair IC(C1610)

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peripheral device, re-weld not-good 
position or replace IC(C1610)

Examine and 5V power 
supply circuit

Replace IR1 receive head

Connect feet 1 of IR1 receive 
head to feet 76 of IC (C1610), 
maybe it is with resin connection 
or contact miss or cutoff

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YES

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Start

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Examination & Reparation Procedure for Power

To measure the voltage of feet 2 and 4 
and 6 and 8 of JP203 jacket, the voltage 
is +5v, +5v, +3.3v and +9v respectively.

To measure the voltage of DC300v 
of after rectified filter is stable or not?

Examine and repair U8, In(C1610)

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peripheral device, re-weld abnormal 
place or replace IC(C1610).

To measure feet 3 and 4 of IC(U201), feet 
3 is power feet, which is provided from feet 
4 and 5 with rectifier, please measure D206, 
C210 and R203, the voltage of feet 4 is 
provided by constant power, please measure 
R204, C211, U205 and constant voltage 
circuit device, re-weld the abnormal place.

With 3.3v, w5v, please check
U207

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s 3.3v constant-power block 

and filter capacitor of  C207 and C208 
or short circuit of 3.3v output for 
ground; without 9v, with +12v voltage, 
please check 9v constant-power block 
of U203, and filter wave capacitor of 
C207 and C204, or short circuit of 9v 
output to ground

To check the status connect line, 
the filter circuit on decode board 
is short circuit or not

To check F201 fuse is ok or not?

Change fuse, fuse is blown when 
starting player.

Check D201, D202, D203, D204, 
C209, C201, C202, R207, U201, 
make sure there is any open circuit 
and short circuit or not?

Re-weld abnormal places,
 replace bad device, turn 
on the power, DC300V 
voltage is stable

Change T201 
transformer

YES

YES

NO

NO

DVDP480

Содержание HSD311PRO

Страница 1: ...higher voltage wattage etc Replacement parts that have these special safety characteristics are identified in this manual and its supplements electrical components having such features are identified...

Страница 2: ...Circuit description Lubrication and Abbreviation of Logo please refer to DV 303 service manual Accessories Remote control unit Batteries AC cord Video audio cable Digital cord How to read the schemat...

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Страница 6: ...te Sheet of MediaTek Incorporation URST URST LDO_AV33 RFV33 DV33 V18 V33 V18 DV33 VCC 12V 12V AVCC GND VCC V33 VCC_AUDIO PV33 DV33 AC2 GND GND AC1 22V P12V 5SB SBY P12V P5V PV3 3 URST 2 V18 2 DV33 2 3...

Страница 7: ...SL CF2 CF1 VOTK REV VOFC VOFC PVCC2 VCC VNFTK CTK2 BIAS FWD VNFFC VINSL STBY VCC VOSL VOLD VOLD VOTK VINLD PREGND CTK1 VINTK G1 G2 C34 0 1uF C14 0 033uF C17 0 047uF CE19 100uF 16V C13 0 1uF TP39 TP R4...

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Страница 13: ...VFD17 VFD16 VFD15 VFD14 VFD13 VFD12 VFD11 VFD10 VFD9 VFD8 VFD7 VFD6 VFD5 VFD4 VFD3 VFD24 VFD25 VFD26 VFD27 VFD28 VFD29 VFD30 VFD31 VFD3 VFD4 VFD10 VFD15 VFD20 VFD25 VFD30 VFD31 VFD1 VFD2 VFD32 VFD33 F...

Страница 14: ...RT13 56K J CARBON RESISTANCE 1 5 100u 16V ELECTROLUTE CAPACITANCE 1 5 CC1634 101 10 CAPACITANCE 3 5 CC1634 104 80 CAPACITANCE 1 5 DIN4148 DIODE 3 5 TX5 JACK 5 5 TX7 5 JACK 2 5 TX10 JACK 1 5 TX12 5 JAC...

Страница 15: ...9 9 5 C SCREW 4 1 6561M3 6H SCREW 2 1 6560M3 8H SCREW 4 1 6560M3 6H SCREW 9 1 6560M3 4H SCREW 6 2 GBIP6 463 000 4 2 GBIP8 369 001 4 2 QT201 7 60 1 GBIP8 817 234 1 1 GBIP8 817 719 DAEWOO LOGO 1 2 GBIP8...

Страница 16: ...5mm 1 J7 18 CAPACITANCE CT81 103 1KV 1 C9 19 CAPACITANCE CBB 104 63V 1 C8 20 CAPACITANCE CT81 222 400V Y1 1 C27 21 CAPACITANCE CT81 221 400V Y1 2 C3 C4 22 CAPACITANCE CC1 223 50V 1 C5 23 CAPACITANCE M...

Страница 17: ...27 2 L1 L5 43 MAGNETISM RESISTANCE 1 L6 44 INDUCTANCE 5 6uH 2 L7 L8 45 INDUCTANCE 6 20 0 8 16 5T 1 L11 46 INDUCTANCE 6 20 0 8 10 5T 1 L10 47 9P CABLE SD QJB E 220 1 CN3 48 F2A 250V 5 20 1 FUSE 49 JACK...

Страница 18: ...N ratio Video output S video output Audio output 20W 98dB 1 0V P P 75 Y 1 0V P P C0 28 75 2 V power supply Operation temperature 30 C To4 5 C Response frequency 4Hz 22 Khz 430 L X 290 W X 48 H mm 4 2...

Страница 19: ...gain Check the status of TV TV can display picture but no vivid calor TV s mode does not match up with this player Set the model of TV and player to let them fit Sensibility of remote control is not w...

Страница 20: ...circuit See remote control system examination and reparation procedure Remote control is useful but the player s keys are not sensible It maybe in front control board program circuit See front contro...

Страница 21: ...imeters the voltage has 5V or not To measure the voltage of IC IC1 UPD16312 s feet 41 and 42 it is with voltage or not To measure the data of JP1 socket s feet 4 and 5 and 6 in front control board and...

Страница 22: ...fter rectified filter is stable or not Examine and repair U8 In C1610 s peripheral device re weld abnormal place or replace IC C1610 To measurefeet 3 and 4 of IC U201 feet 3 is power feet which is pro...

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