DAEWOO ELECTRONICS DP-A61D1D-AD Service Manual
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DAEWOO ELECTRONICS DP-A61D1D-AD, 19 CIRCUIT OPERATIONAL DESCRIPTION 7) Output terminal When power is turned off at power applied status, High signal (+3.3V) is applied to Q804 Base terminal and GND is applied to Q803 Base terminal therefore +5VD is not applied to Q803 emitter terminal and only MVCC(+5V) is applied to Q803 collector terminal line. When power is turned on, Low signal(0V) is applied to Q804 Base terminal and Q804 is shorted. At this time, Q803 Base terminal becomes High status and Q803 is activated. Therefore Q803 outputs +5VD to Emitter terminal. 2. POWER SUPPLY BLOCK DIAGRAM Picture 7 [ Output terminal ]
DAEWOO ELECTRONICS DP-A61D1D-AD, 44 TROUBLESHOOTING No Audio with SCART Jack (JK103) Is there Audio signal in JK103 #1 and #3 pin? YES NO Check it with the same method of 2CH Setting of AUDIO circuit(1). 5. SCART(PAL ONLY) Is there voltage change to 12V, 6V and 0V like below in JK103 #8 pin each time you press SCART button on remote control (Mode Conversion)? No Problem Check JK103 and SCART Cable. No conversion to MODE by pressing SCART button on remote control. NO Is there voltage change in Q110, Q111 Base like below each time you press SCART button on remote control (Mode Conversion)? (Only when H:3.3V, L:0V, D:do
DAEWOO ELECTRONICS DP-A61D1D-AD, 39 TROUBLESHOOTING 3. AUDIO circuit ✓ Caution Before the AUDIO circuit test, check SETUP MENU setting first by remote controller. A. Analog OUT No AUDIO output from 5.1CH JACK(JK300) or 2CH JACK(JK301/JK101) In case of 2CH setting In the item, speaker of audio setup on the screen of SETUP Menu, AUDIO Setup, is Front set up as small or large and others as NONE? AUDIO output wave at IB01 pin # 8,9,10,11,12,13? Is the data signal transmitted to P300 No.1, 3, 4, 6, 7, 9 pin? In case of 5.1CH setting Are Front L/R, Center, Surround, subwoofer in speaker setup of SETUP MENU set on
50 WAVEFORMS 8) P300(#13 ) CVBS(Composite) 9) P300(#19) Y Signal(S-VIDEO MODE) 10) P300(#21 ) C-Signal(S-VIDEO MODE) 11) P300(#19) Y(G) (INTERLACED MODE) 12) P300(#20) Pb(B) (INTERLACED MODE) 13) P300(#21) Pr(R) (INTERLACED MODE) 2. ANALOG BOARD : VIDEO(KDV-N Title 1/Chapter 2 -> Color Bar 100%) * MPEG Board -> ANALOG BOARD(P300 or CN02) 14) P300(#19) Y(G)(Progressive Scan
DAEWOO ELECTRONICS DP-A61D1D-AD, 68 DISASSEMBLY BADGE DVD DECO POWER WINDOW FRONT KNOB FUNCTION PANEL FRONT KNOB POWER 97P1632100 97P1826100 97P1390100 97P1390300 97Q1509800 97P0331000 97P1390200 6 5 4 1 2 3 8 7 DOOR CD ABS ABS ABS ABS 1 QUANTITY 1 1 QUANTITY 1 1 1 1 1 HI-PS(HB) PMMA NI + CR PCB LOGIC T1 7174300811 SCREW TAPPTITE 5 TT2 BIN 3X8 MFZN PART NAME PART No. No. MATERIAL REMARK 7 6 2 1 4 3 8 3 T1 5 T1 8
ELECTRICAL PARTSLIST 80 LOC PART CODE PART NAME PART DESC REMARK 02 PVPKCPL166 PACKING AS DP-A64D2 03 PVMCASL166 CHASSIS MAIN AS DP-A64D2 A001 97PB613000 CHASSIS BOTTOM AS DP-A64D2D-LS A0011 97P2348900 HOLDER PANEL ABS A002 97P9340003 LABEL SPEC PAPER 88X34 A040 97P0483800 COVER TOP SECC T0.5 A040A 97P0994200 PLATE TOP COVER PVC T0.3 BLK A050 97P0993601 PLATE A/V
42 TROUBLESHOOTING No Component VIDEO output from JK301 Y/Pb/Pr Determine whether the setting user wants is progressive or interace and check if it is approprited connected to TV terminal. NO NO YES Is TV setup progressive or interace which users want? Connect RCA Jack(Y/Pb/Pr) between TV terminal and DVD-Player in a progressive format or interace one. Change the
DAEWOO ELECTRONICS DP-A61D1D-AD, 21 CIRCUIT OPERATIONAL DESCRIPTION 2. Front Part Operational Description 1) KEY SCAN & VFD Driver(PT6312) Interface 2) Operation Description * If user presses KEY while IC01(ALI_M3351_2) implements KEY SCAN using VFD DRIVER(PT6312), the KEY input DATA go to IC01 by SERIAL Communication, then IC01 analyzes and processes the input DATA. * Implement the operation according to the input command and display the processing status on the VFD through PT6312. VFD DISPLAY VFD DRIVER (PT6312) KEY MATRIX (FRONT TACT SWITECH) POWER OPEN/CLOSE PAUSE/STEP MICOM INTERFACE KEY MATRIX (TACT SWITCH OF 4 DIRECTION) PLAY STOP FFREW KEY MATRIX (SHUTTLE RING) REW FF
DAEWOO ELECTRONICS DP-A61D1D-AD, 67 DISASSEMBLY 97Q1509800 2 1 97QP322600 97Q0481800 7 6 4 3 5 97Q1825700 97Q0481920 97Q0482107 QUANTITY PANEL FRONT AS’ COVER TOP 1 1 MAIN PCB AS’ CHASSIS BOTTOM MPEG PCB AS’ DOOR CD COVER BACK 1 1 1 1 1 - SECC T0.6 DQD-2312D-F ABS - SECC t=0.8 SECC t=0.8 13 97Q0804500 11 12 8 9 10 97Q0804400 97P0800600 T1 14 T2 7173300811 97Q2348500 7173302011 2 LEG-F CORD POWER LEG LEG FRONT LOADER AS’ BADGE DVD 2 2 1 1 1 SCREW TAPPTITE HOLDER LOADER R SCREW TAPPTITE 17 2 4 EVA T=4.0 UL/CSA YH396V-42 HI-PS EVA T=3.0 - NI + CR TT2 BIN 3X8 MFZN TT2 BIN 3X20
DAEWOO ELECTRONICS DP-A61D1D-AD, 70 DISASSEMBLY UL/CSA YH396V-42 1 NI + CRBADGE DVD 8 97Q1509800 DOOR CD MAIN PCB AS' MPEG PCB AS' COVER TOP PLATE A/V BACK CHASSIS BOTTOM PANEL FRONT AS' 7 3 2 1 6 4 5 97P0613000 97PP331000 97P0483800 97P1826100 97P0993600 QUANTITY 1 SECC t=0.8 SECC T0.5 1 1 PVC T0.3 PC 1 1 1 1 HOLDER PANEL PLATE INSU PLATE TOP COVER SCREW TAPPTITE SCREW TAPPTITE LOADER AS' CORD POWER T1 11 12 13 14 T2 9 10 97P2348900 97P0994200 97P69DB900 97Q0804300 LEG 7174300710 97P0993500 7173300812 9 10 EVA T=3.0 PVC T=0.5 ABS 1 1 2 1 1 - PVC T=0.5 TT2 BIN 3X8 MFZN BK TT2 RN
52 WAVEFORMS 3. VFD * MPEG Board (MPEG IC : IC01)< -> ANALOG Board(VFD Drive IC : IC710) 32) IR Signal PJ702 or CN03-#1 33) STB Signal PJ702 or CN03-#3 34) DATA Signal PJ702 or CN03-#5 35) CLK Signal PJ702 or CN03-#6 36) IC710 IC710-#44 37) IC710 <->DIGITRON Segment signal -#15~#26, #28~#31 38) IC710 <->DIGITRON Grid signal -#33~#37 39) IC710 INPUT Pin-#10, #11 (TRACK Switch)
DAEWOO ELECTRONICS DP-A61D1D-AD, 32 CIRCUIT OPERATIONAL DESCRIPTION 2) Flash Memory : MX29LV800ATTC-70 or A29L800TV-70 (IC03) This stores every program required for the operation of DVD player and holds the data of OSD languages and LOGO and send them upon request from u-COM. This allows the update of firmware by CD-R/RW. For DVD module, 8MBit Flash Memory on 512K x 16bit basis is used. 3) LATCH : SN74HC573APWR or MM74HC573NTC (IC06, IC07) 74HC573 is 3-State Octal D-Type Latch and generally used for temporarily maintaining or storing the signal status, but two latches applied to DVD module plays the role of sharing low 16bit of data and
DAEWOO ELECTRONICS DP-A61D1D-AD, 47 TROUBLESHOOTING Is PICK-UP LENS operating UP/DOWN (FOCUSING)? YES NO NO NO YES Is the CD LD turned on? Is the DVD LD turned on? - Check 24P PICK-UP CABLE cut and bad soldering. - Check the MOTOR DIRVE IC(IA02) operation(FOCUS PART) - Check IA01 and change IA01 - Check IA01(26P) : LD is turned on during LOW mode - Change LA02, QA02, RA20 - Change PICKUP - Check IA01 and change IA01 - Check IA01(26P) : LD is turned on during LOW mode - Change LA02, QA02, RA20 - Change PICKUP NO YES Is SPINDLE rotating? - Check 9P FFC CABLE cut and bad soldering. - Check the SPINDLE MOTOR (IA02) operation. Is there any cracks in screen? Y
DAEWOO ELECTRONICS DP-A61D1D-AD, 46 TROUBLESHOOTING DISC LOADING B. BAD PLAYBACK YES In case of bad recognition of disc and the abnormal screen while playing after LOGO screen displayed on TV monitor and setting initialized. Is 12V constant? (Voltage Check LP01) YES NO NO NO YES Is MVCC constant? (Voltage Check LP07 ) Is RF50V constant? (Voltage Check IP03, LP03) Change LP01 Change LP07 Change IP03, LP03. NO YES Is RF33V constant? (Voltage check LP05) Change LP05 Has DISC LOADING operation completed? YES NO NO NO YES Has Spindle KICK operation completed? Has FEED IN operation completed? - Check 9P FFC CABLE cut and bad soldering. - Check the LOADING
DAEWOO ELECTRONICS DP-A61D1D-AD, 48 TROUBLESHOOTING C. NO AUDIO OUTPUT NO SOUND OUTPUT Is 12V constant? (Voltage Check LP02) YES NO NO NO YES Is AD 5V constant? (Voltage Check DP11, DP12, IP03) Is AD33V constant? (Voltage Check LP11) Change LP12 Check DP11, DP12, IP03 and Change Change LP11 NO YES Is the audio data of main chip output?(Check the audio port of IC01) Change IB01 or IB02 Is there any short of AUDIO DATA output and open? NO Change MAIN CHIP YES Sound operation completed. YES
DAEWOO ELECTRONICS DP-A61D1D-AD, 65 DISASSEMBLY TT2 BIN 3X20 MFZN TT2 BIN 3X8 MFZN UL/CSA YH396V-42 DQD-2312D-F 97Q0482107 97Q0481800 97Q0481920 97QP322800 5 1 2 3 4 97Q1825700 97Q1509800 10 9 6 7 8 QUANTITY MPEG PCB AS’ PANEL FRONT AS’ CHASSIS BOTTOM COVER BACK COVER TOP MAIN PCB AS’ CORD POWER DOOR CD BADGE DVD LOADER AS’ SECC t=0.8 SECC T0.6 SECC t=0.8 - - 1 1 1 1 1 ABS NI + CR - 1 1 1 1 1 7173302011 97P0800600 97Q0804400 97Q2348500 97Q0804500 T2 14 13 12 11 7173300811 T1 SCREW TAPPTITE HOLDER LOADER R LEG FRONT LEG LEG-F SCREW TAPPTITE ABS EVA T=4.0 EVA T=3.0 HI-PS 4 2 2 2 2 17 97P69DB900 97LA0040D- N
DAEWOO ELECTRONICS DP-A61D1D-AD, 18 CIRCUIT OPERATIONAL DESCRIPTION 5) Costant-voltage Circuit This circuit maintains constant voltage. When voltage is lower or higher than reference voltage(2.5V) of IC802 pin1, this circuit compensates for a loss. Base voltage of Switching TR is controlled and final voltage is regulated by increasing or decreasing Internal Diode Current of IC801. Picture 5 [ Costant-voltage Circuit ] 6) Secondary rectification circuit This circuit generates DC voltage needed to each terminal. It is rectified half-wave by D821, passes through Electrolytic Condenser C821 and generates the rectifi
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