Samsung DVD-P380 Service Manual

Hide thumbs Also See for DVD-P380:

User manual (116 pages)

Table Of Contents

Table of Contents

Quick Links

Troubleshooting

Summary of Contents for Samsung DVD-P380

Page 1 Mideast & Africa URL ; http://mea.samsungportal.com © Samsung Electronics Co., Ltd. JAN. 2008 This Service Manual is a property of Samsung Electronics Co .,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.
Page 2: Table Of Contents
CONTENTS CONTENTS 1. Precautions 1-1 ~ 1-6 7-4 Video (Main PCB) (7-6) 7-5 Audio (Main PCB) (7-7) 1-1 Safety Precautions (1-1) 7-6 Power (Main PCB) (7-8) 1-2 Servicing Precautions (1-3) 7-7 Motor Driver (Main PCB) (7-9) 1-3 ESD Precautions (1-4) 7-8 Decoder (Main PCB) (7-10) 1-4 Handling the optical pick-up...
Page 3: Precautions
Any current measured must not exceed 0.5mA. Reverse the instrument power cord plug in the outlet and repeat the test. See Fig. 1-1. Fig. 1-2 Insulation Resistance Test Samsung electronics...
Page 4 (5) antenna wiring. Always inspect in all areas whenever appropriate. for pinched, out-of-place, or frayed wiring, Do not change spacing between a component and the printed-circuit board. Check the AC power cord for damage. Samsung Electronics...
Page 5: Servicing Precautions
When replacing components, use components which have the same ratings. Components identified by shading, by( ) or by ( ) in the circuit diagram are important for safety or for the characteristics of the unit. Always replace them with the exact replacement components. Samsung Electronics...
Page 6: Esd Precautions
(7) Immediately before removing the protective materials from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will be installed. Samsung Electronics...
Page 7: Handling The Optical Pick-Up
Be sure to put on a wrist strap grounded to the sheet. Be sure to lay a conductive sheet made of copper etc. Which is grounded to the table. Samsung Electronics...
Page 8: Pick-Up Disassembly And Reassembly
3) Make solder land 2 points short on Pick-up. 3) Reassemble the Deck-Assy. (See Fig. 1-4) 4) Disassemble the Pick-up. Note : If the assembly and disassembly are not done in correct sequence, the Pick-up may be damaged. Fig.1- Samsung Electronics...
Page 9: Product Specification 2-1
Pr : 0.70 Vp-p (75 Ω load) Pb: 0.70 Vp-p (75 Ω load) 2 Channel L(/L), R(2/R) 48KHz Sampling : 4Hz to 22KHz *Ferquency Response 96KHz Sampling : 4Hz to 44KHz Audio Output *S/N Ratio 0dB *Dynamic Range 00dB *Total Harmonic Distortion 0.004% Samsung Electronics...
Page 10 ● Progressive Scan Progressive scanning creates an improved picture with double the scan lines of a conventional interlaced picture. ● Excellent Sound Dolby Digital, a technology developed by Dolby Laboratories, provides crystal clear sound reproduction. ● USB You can enjoy the media files such as pictures, movies, and tunes saved in an MP3 player, USB memory or digital camera in high audio by connecting the storage device to the USB port of the DVD player ● CD Ripping This feature lets you to copy audio files from disc to USB device into MP3 format (Only Audio CD). 2-1-2 Discs which cannot be played with this player : 2-1-2(a) player ● DVD-ROM ● CD-ROM ● CDI ● DVD-RAM ● CDV ● CVD ● CDGs play audio only, not graphics. 2-1-2(b) recording condition ● DVD-R, +R ● CD-RW ● DVD+rw, -RW (V Mode) ● The unit may not play certain CD-R, CD-RW and DVD-R due to the disc type or recording condition. Samsung Electronics...
Page 11: Disc Type And Characteristics
Multi-functional, multi-media software that requires large Read Only DVD-ROM storage capacity High quality sound that exceeds the CD, multi-channel Playback Only DVD-Audio Audio Time Recording Storage media for the computer DVD-R Rewritable Data access/storage media for the computer. DVD-RAM Samsung Electronics...
Page 12: Region Code
Region 5 Russia, Eastern Europe, India, Africa Region 6 China Region 0 Worldwide (all code) 2-1-5 USB 2-1-5 (a) Universal Serial Bus Universal Serial Bus (USB) is a serial bus standart to interface devices. * Designed to allow peripharels to be connected using a single standardized interface socket. * Improve plug and play capabilities * Powering low comsumption devices without the need for external power supply. * Allowing some devices to be used without requiring individual devices driver to be installed 2-1-5 (b) Device Class * 0X08 : USB mass storage device class used for USB flash drives, Memory card reader, digital audio * 0X09 : USB hubs * 0X0B : Smart card readers * 0X0E : USB video device class, web cam like devices, motion image capture devices * 0XE0 : Wireless controller, for example Bluetooth dongles. 2-1-5 (c) USB Connector * The connector are designed to be robust. * It is difficult to incorrectly attach a USB connector * The connector are particularly cheap to manufacture * The connector enforce the directed topology of a USB network * Amoderate insertion / removal force is specified * The connector construction always ensures that the external sheaths on the plug contact with its counterpart in the receptacle before the four connector within are connected. * The USB standart specifies relatively low tolerances for compliant USB connectors, intending to minimize incompatibilities in connectors produced by different vendor. Samsung Electronics...
Page 13 Product Specification Fig. 2- 2-1-5 (d) Basic flow and interrelationship of the USB communication model. Fig. 2-2 Samsung Electronics...
Page 14: Chassis Product Specification �2-6
Product Specification 2-2 Chassis Product Specification General Features DVD-P370 DVD-P380 Chassis CD Disc Play Compati DVD-R/-RW/+R/+RW (Video Mode) bility CD-R/-RW Progressive Scan Video 08MHz/ 4 Bit Video DAC Video NTSC System Default MP3/WMA decoder MIC INPUT Audio Digital Out (DTS/AC-3)
Page 15: Option Product Specification �2-7
Product Specification 2-3 Option Product Specification Description Fig Description Parts No Remark Remote Model Standard of (AK59-0007F) Control DVD-P380/XSE Model Standard of Batteries for (AC43-2002H) DVD-P380/XSE Remote Control S.N.A Model Standard of Owners Instructions (AK68-0509R) DVD-P380/XSE Video/Audio (AC39-2207Z ==> Single)
Page 16 Product Specification M E M O Samsung Electronics...
Page 17: Disassembly And Reassembly
Note : Reassembly in reverse order. 3-1-1 Top Cabinet Removal 1) Remove 3 Screws the back Top Cabinet. 2) Lift up the Top Cabinet in direction of arrow. 3 SCREWS (3X0 B) TOP CABINET Fig. 3- Top Cabinet Removal Samsung Electronics...
Page 18 Disassembly and Reassembly 3-1-2 Ass'y Front Cabinet Removal 1) Release 7 Hooks and Ass'y Front-Cabinet HOOK HOOKS 3 HOOKS HOOK ASSY FRONT CABINET Fig. 3- Ass'y Front Cabinet Removal Samsung Electronics...
Page 19 3-1-3 Ass'y Deck Removal 1) Disconnect Flat-Cable from DCN1, DCN2 on Main PCB. 2) Remove 3 Screws from the Ass'y Deck and lift it up. 3 SCREWS (3X6 W) ASS'Y DECK FLAT-CABLE DCN DCN Fig. 3-3 Ass'y Deck Removal Samsung Electronics...
Page 20 Main PCB and lift it up. 2) Remove 3 Screws from the S.M.P.S PCB and lift it up. SCREWS (3X6 W) 3 SCREWS (3X6 W) MAIN PCB S.M.P.S PCB Fig. 3- Main PCB and S.M.P.S PCB Removal Samsung Electronics...
Page 21: Deck
Disassembly and Reassembly 3-2 Deck 3-2-1 Holder Chuck Removal 1) Push 2 Hooks in the direction of arrow "A" and lift up the Holder Chuck HOLDER CHUCK HOOK HOOK Fig. 3- Holder Chuck Removal Samsung Electronics...
Page 22: Tray Disc Removal
"C" and pull in the direction of arrow "B" by hte hand until released. SLIDER CAM "C" HOOK TRAY DISC "B" "A" "C" HOOK SCREW DRIVER EMERGENCY HOLE Fig. 3-6 Tray Disc Removal Samsung Electronics...
Page 23 1) Remove the 4 Soldering (F+, F-, S+, S-). 2) Push 2 Hooks in the direction of arrow "A" and lift up the Assy Traverse Deck ASS'Y TRAVERSE DECK HOOK HOOK SOLDERING Fig. 3- Ass'y Traverse Deck Removall Samsung Electronics...
Page 24 Ass'y Motor Load 5) Lift Up Gear Pulley and Gear Tray "B" SLIDER CAM GEAR TRAY BELT PULLEY GEAR PULLEY SCREW ASS'Y MOTOR LOAD SOLDERING ASS'Y PCB DECK HOOK Fig. 3- Ass'y Housing Removal Samsung Electronics...
Page 25: Trouble Shooting 4-1
4. Trouble Shooting 4-1 Trouble Shooting -------------------------------------------------------------------------------- 4-2 4-2 Software Update ------------------------------------------------------------------------------- 4-24 Samsung Electronics...
Page 26: Trouble Shooting
No pick-up home positing ZIC-93 (SLED-PWM} Check ZIC. output is normal ? Refer to a pattern image of Table 4-1 SL+, SL- Check MIC. (MIC - , ) Peripheral Circuit output are normal ? Check the Sled Motor and Connection Samsung Electronics...
Page 27 Trouble Shooting ZIC1 AIC5 Refer to a pattern image of Main PCB page 6-3 ZIC Pin(93) Refer to a pattern image of Decoder (Main PCB) Page 7-10 Fig. 4- Samsung Electronics...
Page 28 Actuality occurs at ZIC-93 terminal ? Check Power Refer to a pattern image of Table 4-2 Actuality, occurs Check MIC peripharel circuit at MIC-, terminal ? Is RF Signal OK ? Focus On ? See "Fine Seek Check" Samsung Electronics...
Page 29 Trouble Shooting ZIC1 AIC5 Refer to a pattern image of Main PCB page 6-4 ZIC Pin(93) Refer to a pattern image of Decoder (Main PCB) Page 7-10 Fig. 4- Samsung Electronics...
Page 30 Trouble Shooting No Focus incoming MIC-3, 4 output Check MIC. are normal Refer to a pattern image of Table 4-3 Check open state from MIC to Pick-up. Samsung Electronics...
Page 31 Trouble Shooting MIC1 FE Waveform MIC Pin(3,4) Refer to a pattern image of Main PCB page 6-5 Refer to a pattern image of Motor Driver (Main PCB) Page 7-9 Fig. 4-3 Samsung Electronics...
Page 32 FINE SEEK Check ZIC- (RF) Check RFSUM input from P/U. output is normal ? MIC - , (T+,T-) Check MIC peripheral circuit Terminal outputs are normal ? Refer to a pattern image of Table 4-4 Check DCN and P/U Samsung Electronics...
Page 33 Trouble Shooting MIC1 MIC Pin(,) Refer to a pattern image of Main PCB page 6-5 Refer to a pattern image of Motor Driver (Main PCB) Page 7-9 Fig. 4-4 Samsung Electronics...
Page 34 output is Check MIC soldering and power normal ? Refer to a pattern image of Table 4-6 MIC- signal Check. ZIC MON is "H"? Refer to a pattern image of Table 4-6 Check or replace disc motor 4-0 Samsung Electronics...
Page 35 Trouble Shooting ZIC1 AIC5 Refer to a pattern image of Main PCB page 6-4 SPD Waveform ZIC Pin(9), MIC(,,) Refer to a pattern image of Decoder (Main PCB) Page 7-10 Fig. 4- Samsung Electronics 4-...
Page 36 Trouble Shooting MIC1 SPD Waveform ZIC Pin(9), MIC(,,) Refer to a pattern image of Main PCB page 6-5 Refer to a pattern image of Motor Driver (Main PCB) Page 7-9 Fig. 4- 4- Samsung Electronics...
Page 37 Output OK ? Refer to a pattern image of Table 4-8 Is voltage from ZIC-0 (close) Check ZIC peripheral circuit and ZIC-99 (open) ok ? Refer to a pattern image of Table 4-7 Change the ZIC or MIC Samsung Electronics 4-3...
Page 38 Trouble Shooting Refer to a pattern image of Main PCB page 6-4 OPEN, CLOSE WAVEFORM ZIC Pin(99,0), MIC(9,0) Refer to a pattern image of Decoder (Main PCB) Page 7-10 Fig. 4- 4-4 Samsung Electronics...
Page 39 Trouble Shooting MIC1 OPEN, CLOSE WAVEFORM ZIC Pin(99,0), MIC(9,0) Refer to a pattern image of Main PCB page 6-5 Refer to a pattern image of Motor Driver (Main PCB) Page 7-9 Fig. 4- Samsung Electronics 4-...
Page 40 Check A IC-ACI peripheral output normal circuit Refer to a pattern image of Table 4-9 Base terminal level Check ZIC-4 mute. of AQ are "L"? Refer to a pattern image of Table 4-9 Check JACK peripheral soldering shot 4- Samsung Electronics...
Page 41 Trouble Shooting DATA0 Waveform AIC Pin(,), AQ Refer to a pattern image of Main PCB page 6-4 Refer to a pattern image of Audio (Main PCB) Page 7-7 Fig. 4-9 Samsung Electronics 4-...
Page 42 Trouble Shooting Y/Pr/Pb (Component) Output error Video output of display Select video output to"I-SCAN". setup is"I-SCAN". CHECK DVD SET-MENU 4- Samsung Electronics...
Page 43 Trouble Shooting Progressive output error Video output of Select video output to"P-Scan" display setup is P-scan CHECK DVD SET-MENU Samsung Electronics 4-9...
Page 44 Table 4-10 Is analog output Check the soldering of ZIC. at ZIC-0 (CVBS/C) normal ? Video Check the connection signal at between ZIC and . output jack is output jack about Change the RCA cable. 4-0 Samsung Electronics...
Page 45 Trouble Shooting Refer to a pattern image of Main PCB page 6-4 CVBS Waveform ZIC Pin(4,,9,) Refer to a pattern image of Decoder (Main PCB) Page 7-10 Fig. 4-0 Samsung Electronics 4-...
Page 46 Table 4-11 image of Table 4-11 Switching Replace PICS. operation check feed back, nd voltage of PIC is normal? Refer to a pattern Refer to a pattern image of Table 4-11 image of Table 4-11 Replace PIC 4- Samsung Electronics...
Page 47 DC 110-350V DC 110-350V DC 180V 1. (8.3V) 2. (2.5V) 3. (1.8V) Refer to a pattern 4. (1.9V) image of S.M.P.S PCB page 6-6 Refer to a pattern image of S.M.P.S (S.M.P.S PCB) Page 7-5 Fig. 4- Samsung Electronics 4-3...
Page 48: Software Update
3) Press the number buttons to select the desired languange. Fig. 4-4 s If the “Select Menu Languange” doesn’t appear, Please contact to “Samsung Service Center “.If the unit was succesfully update, the unit will turn off and on after closing the tray automatically.
Page 49: Exploded View And Parts List
5. Exploded View and Parts List 5-1 Cabinet Assembly ------------------------------------------------------------------------------- 5-2 5-2 DVD Mechanical Parts ----------------------------------------------------------------------- 5-4 5-3 Electrical Parts List ---------------------------------------------------------------------------- 5-6 삼성전자...
Page 50: Cabinet Assembly
Exploded Views and Parts List 5-1 Cabinet Assembly W275 W001 W275 W275 P001D C015A P003 P025 A001 C001 W004 P007P W004 P005 This Document can not be used without Samsung's authorization Samsung Electronics...
Page 51 P00 AK9-059B ASSY PCB-SMPS;DVD-P480K,SMPS PCB AS P005 AK9-059B ASSY PCB-FRONT;DVD-P480K,AMERICA/KO P007P AK9-0594A ASSY PCB-POWER KEY;DVD-P480K (40MM P05 AC9-000N CBF-POWER CORD;AT,US,EP/Y,HOUSING( W00 600-00075 SCREW-TAPTITE;BH,+,-,B,M,L0,ZPC(B W004 600-0008 SCREW-TAPTITE;BH,+,-,B,M,L8,ZPC(WH W75 600-0056 SCREW-TAPTITE;BH,+,-,B,M,L6,ZPC(WH Samsung Electronics This Document can not be used without Samsung's authorization...
Page 52: Dvd Mechanical Parts
Exploded Views and Parts List 5-2 DVD Mechanical Parts W274 FL627 H213 H215 H212 H102 T037 H105 H106 W274 W396 H103 H108 H104 P059 This Document can not be used without Samsung's authorization Samsung Electronics...
Page 53 GEAR-TRAY;DP-,POM,0.4(A)/0.8(B),8 H08 AK6-00478A TRAY-DISC;DP-,ABS,T6.0,4.4,86. H AK6-00777A HOLDER-CHUCK;DP-,ABS,.6,7.0,87 H AK6-00779A SPRING ETC-CLAMPER;DP-,SUS04CSP, H5 AK97-007C ASSY-PU DECK;ASSY-PU DECK,CMS-LS78R P059 AK97-005B ASSY-PCB DECK;-,DP-B,RIGHT-SIDED T07 AK66-0009A SLIDER-CAM;DP-,POM,.8,87.0,0.6, W74 600-0070 SCREW-MACHINE;BH,+,-,M.7,L.5,ZPC( W96 600-0060 SCREW-TAPTITE;CH,+,-,B-TITE,M.4,L5 Samsung Electronics This Document can not be used without Samsung's authorization...
Page 54: Electrical Parts List
BEAD-SMD;0ohm,608,TP,ohm/70MH DCN 708-0066 CONNECTOR-FPC/FFC/PIC;P,MM,STRAI RR7 007-0046 R-CHIP;7.5ohm,5%,/8W,TP,0 DOL 90-007 FILTER-EMI SMD;50V,A,-,0pF,.x 007-000075 R-CHIP;0ohm,5%,/0W,TP,608 DOL 0-0049 BEAD-SMD;0ohm,608,TP,ohm/70MH 007-000075 R-CHIP;0ohm,5%,/0W,TP,608 0-00599 C-CER,CHIP;0000nF,0%,6V,X7R,5 JACK 7-00667 JACK-PIN;7P(8P),NI,WH-BL-BLU-GN/RD- 007-0046 R-CHIP;7.5ohm,5%,/8W,TP,0 007-0004 R-CHIP;Kohm,5%,/0W,TP,608 007-000070 R-CHIP;0ohm,5%,/0W,TP,608 This Document can not be used without Samsung's authorization Samsung Electronics...
Page 55 ZC4 0-00548 C-CER,CHIP;00nF,0%,6V,X7R,TP,60 ZR4 007-00009 R-CHIP;Mohm,5%,/0W,TP,608 ZC5 0-00068 C-CER,CHIP;0.07nF,5%,50V,C0G,608 ZR 007-000070 R-CHIP;0ohm,5%,/0W,TP,608 ZC7 0-00068 C-CER,CHIP;0.07nF,5%,50V,C0G,608 ZR7 007-008567 R-CHIP;5.4Kohm,%,/0W,TP,608 ZC9 0-00548 C-CER,CHIP;00nF,0%,6V,X7R,TP,60 ZR9 007-000074 R-CHIP;00ohm,5%,/0W,TP,608 ZR40 007-000074 R-CHIP;00ohm,5%,/0W,TP,608 0-000 C-CER,CHIP;0.0nF,5%,50V,C0G,608 Samsung Electronics This Document can not be used without Samsung's authorization...
Page 56 PER0 40-00567 C-AL;47uF,0%,400V,WT,-,8x0,7.5 050-00079 TR-SMALL SIGNAL;KSA8-Y,PNP,50mW PES 40-00477 C-AL;0UF,0%,5V,LZ,TP,0X.5MM, 050-00079 TR-SMALL SIGNAL;KSA8-Y,PNP,50mW PES 40-00059 C-AL;000UF,0%,6V,WT,TP,0X6,5 050-00079 TR-SMALL SIGNAL;KSA8-Y,PNP,50mW PES4 40-00480 C-AL;000UF,0%,0V,LZ,TP,0X6MM,5 PES55 40-0058 C-AL;470uF,0%,0V,WT,TP,8x.5mm,5 050-00079 TR-SMALL SIGNAL;KSA8-Y,PNP,50mW 050-0004 TR-SMALL SIGNAL;KSC6-L,NPN,00mW This Document can not be used without Samsung's authorization Samsung Electronics...
Page 57 AK6-00780A FRAME-MAIN;DP-,ABS,-,-,BLK,4.0, SNA P059 AK97-005B ASSY-PCB DECK;-,DP-B,RIGHT-SIDED S.N.A 005-000 GREASE;PL-0G,W0500009,- 0.5 SNA S.N.A AK97-00A ASSY-HOLDER CHUCK;-,DP-,- SNA S.N.A AK4-0069A PCB-MOTOR;DP-,PHENOL,,,T.6,8. SNA S.N.A AK4-00706B FFC-DECK;DP-B,PITCH.0,PET,P,-, SNA Samsung Electronics This Document can not be used without Samsung's authorization...
Page 58 Exploded Views and Parts List M E M O 5-0 Samsung Electronics...
Page 59: Pcb Diagrams 6-1
6. PCB Diagrams 6-1 Wiring Diagram ----------------------------------------------------------------------------------------------------------------- 6-2 6-2 Main PCB --------------------------------------------------------------------------------------------------------------------------- 6-3 6-3 S.M.P.S PCB ---------------------------------------------------------------------------------------------------------------------- 6-6 6-4 Front Key PCB ------------------------------------------------------------------------------------------------------------------- 6-8 6-5 Power Key PCB ----------------------------------------------------------------------------------------------------------------- 6-9 Samsung Electronics...
Page 60: Wiring Diagram
PCB Diagrams 6-1 Wiring Diagram Samsung Electronics...
Page 61: Main Pcb
PCB Diagrams 6-2 Main PCB COMPONENT SIDE LOC.NO AIC5 FMIC FMCN ZIC DCN CN0 FMIC ZIC DCN Samsung Electronics...
Page 62 PCB Diagrams ZIC Pin(9) SPD Waveform OPEN, CLOSE WAVEFORM DATA0 Waveform CVBS Waveform ZIC Pin(9), MIC(7,8,8) ZIC Pin(99,0), MIC(9,0) AIC5 Pin(,7), AQ7 ZIC Pin(54,56,59,6) Samsung Electronics...
Page 63 PCB Diagrams CONDUCTOR SIDE FE Waveform MIC Pin(,4) MIC Pin(5,6) SPD Waveform ZIC Pin(9), MIC(7,8,8) OPEN, CLOSE WAVEFORM ZIC Pin(99,0), MIC(9,0) LOC.NO ZIC PIC MIC Samsung Electronics...
Page 64: Pcb
PCB Diagrams 6-3 S.M.P.S PCB COMPONENT SIDE LOC.NO PCI PICS MCON Samsung Electronics...
Page 65 PCB Diagrams CONDUCTOR SIDE LOC.NO MCON PIC9 PICS PICS PIC Samsung Electronics...
Page 66: Front Key Pcb
PCB Diagrams 6-4 Front Key PCB COMPONENT SIDE CONDUCTOR SIDE Samsung Electronics...
Page 67: Power Key Pcb
PCB Diagrams 6-5 Power Key PCB COMPONENT SIDE CONDUCTOR SIDE Samsung Electronics...
Page 68 PCB Diagrams M E M O 6-0 Samsung Electronics...
Page 69: Schematic Diagrams
7-8 Decoder (Main PCB) -----------------------------------------------------------------------------------7-10 7-9 Connector (Main PCB) -------------------------------------------------------------------------------7-11 7-10 Front Key (Front PCB) ------------------------------------------------------------------------------7-12 7-11 Front Key Connector (Front PCB) -----------------------------------------------------------7-13 7-12 Power Key (Power PCB) ---------------------------------------------------------------------------7-14 Samsung Electronics This Document can not be used without Samsung's authorization...
Page 70: All Block Diagram
Schematic Diagrams 7-1 All block Diagram This Document can not be used without Samsung's authorization Samsung Electronics...
Page 71: Power
3) PCD01, PCD02, PBS01 : Noise removal at power input/output. (Charges the leakage voltage to PDS11, PER13, 4) PVA1 : SMPS protection at power surge input. PCD12 and discharges to PRS11, PRS12). Fig. 7-2 (c) Driving circuit When Vin supplied, driving current Ig occurs throuhg the PICF1. By this I1 (=Hfe x Ig) occurs throug the PICF1 and the Vb is inducted to base winding coil NB. By inducted Vb, Ib start flow and the VCC voltage of PQR11 is sustained stable. Ib is constant and I1 increases in Proportion to time. After constant time passed Ib become to shortage and PICF1 is cut OFF (S/W OFF). Fig. 7-1 Samsung Electronics This Document can not be used without Samsung's authorization...
Page 72 Schematic Diagrams u Operation descriptions 1) Internal OP-Amp ‘+’ base potential of PICS2 is 2.5V and external “-” input potential is connected with PRS33 and PRS34 to maintain Vout of 4.4V. 2) If load of 4.4V terminal increase (or AC inout voltage decrease) and Vout decrease over 4.4V, Then : PICS2 “R” potential decrease over 2.5V --> PICS2 A-K BASE Current decrease --> PICS2 A-K Current decrease --> PICS1 DIODE Current decrease --> PICS1 C-E Current decrease --> PICS1 C-E Voltage increase - -> PICS1 F-B Voltage increase --> OUT DUTY increase TRANS Primary Cuttent Increase --> TRANS Primary Power increase --> Vout increase --> Vout maintain 4.4V - PRD31, PRD32 : Reduce 4.4V overshoot. - PRS32, PCS32 : Prevent PICS2 oscillation (for phase correction). 7-2-3 Internal Block Diagram u Internal Block Diagram Fig. 7-3 Driving Circuit (d) Feedback Control Circuit Fig. 7-5 Fig. 7-4 This Document can not be used without Samsung's authorization Samsung Electronics...
Page 73: S.m.p.s Pcb)
Schematic Diagrams 7-3 S.M.P.S (S.M.P.S PCB) Samsung Electronics This Document can not be used without Samsung's authorization...
Page 74: Video (Main Pcb)
Schematic Diagrams 7-4 Video (Main PCB) This Document can not be used without Samsung's authorization Samsung Electronics...
Page 75: Audio (Main Pcb)
Schematic Diagrams 7-5 Audio (Main PCB) DATA0 Waveform AIC5 Pin(1,7), AQ7 These are the waveforms of DVD-P380. Caution There can be some differences (Voltage, Frequency, stc.) among cameras. Samsung Electronics This Document can not be used without Samsung's authorization...
Page 76: Power (Main Pcb)
Schematic Diagrams 7-6 Power (Main PCB) This Document can not be used without Samsung's authorization Samsung Electronics...
Page 77: Motor Driver (Main Pcb)
These are the waveforms of DVD-P380. Caution There can be some differences (Voltage, Frequency, stc.) among cameras. SPD Waveform OPEN, CLOSE WAVEFORM FE Waveform MIC1 Pin(15,16) ZIC1 Pin(92), MIC1(17,18,28) ZIC1 Pin(99,102), MIC1(9,10) MIC1 Pin(13,14) Samsung Electronics This Document can not be used without Samsung's authorization...
Page 78: Decoder (Main Pcb)
ZIC1 Pin(92), MIC1(17,18,28) OPEN, CLOSE WAVEFORM ZIC1 Pin(99,102), MIC1(9,10) CVBS Waveform ZIC1 Pin(54,56,59,62) These are the waveforms of DVD-P380. Caution There can be some differences (Voltage, Frequency, stc.) among cameras. 7-0 This Document can not be used without Samsung's authorization Samsung Electronics...
Page 79: Connector (Main Pcb)
Schematic Diagrams 7-9 Connector (Main PCB) Samsung Electronics This Document can not be used without Samsung's authorization 7-...
Page 80: Front Key (Front Pcb)
Schematic Diagrams 7-10 Front Key (Front PCB) 7- This Document can not be used without Samsung's authorization Samsung Electronics...
Page 81: Front Key Connector (Front Pcb)
Schematic Diagrams 7-11 Front Key Connector (Front PCB) Samsung Electronics This Document can not be used without Samsung's authorization 7-...
Page 82: Power Key (Power Pcb)
Schematic Diagrams 7-12 Power Key (Power PCB) 7- This Document can not be used without Samsung's authorization Samsung Electronics...

Samsung DVD-P380 Service Manual

1 Precautions

3 Disassembly and Reassembly

Cabinet and PCB

4 Trouble Shooting 4-1

5 Exploded View and Parts List

6 PCB Diagrams 6-1

7 Schematic Diagrams

Quick Links

Troubleshooting

Related Manuals for Samsung DVD-P380

Summary of Contents for Samsung DVD-P380

Table of Contents