Philips-DMREH-57-Service-Manual(1) 电路图 维修手册.pdf
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1、 2007 Matsushita Electric Industrial Co., Ltd. All rightsreserved.Unauthorizedcopyingand distribution is a violation of law. Vol. 1 Colour (S).Silver Type (K).Black Type DVD Recorder ORDER NO.CHM0705024CE Model No. RadioFans.CN 收音机爱 好者资料库 1 Safety Precaution 3 1.1. General guidelines 3 2 Warning 4 2
2、.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices 4 2.2. Precaution of Laser Diode 5 2.3. Service caution based on legal restrictions 6 3 Service Navigation 7 3.1. Service Information 7 3.2. Caution for DivX 7 4 Specifications 8 5 Location of Controls and Compon
3、ents 10 6 Operation Instructions 12 6.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button 12 7 Service Mode 15 7.1. Self-Diagnosis and Special Mode Setting 15 8 Service Fixture 1) SD Card: Check to be able to display and copy the picture. 2) DV terminal: C
4、heck to be able to record from DVC. 8After checking and making repairs, upgrade the firmware to the latest version. Make sure that FIRM_SUCCESS appears in the FL displays. *UNSUPPORT display means the unit is already updated to newest same version. Then version up is not necessary. 9Transfer 99 in t
5、he service mode setting, and initialize the service settings (return various settings and error information to their default values. The laser time is not included in this initialization). Make sure that CLR appears in the FL display. After checking it, turn the power off. Use the following checklis
6、t to establish the judgement criteria for the picture and sound. ItemContentsCheckItemContentsCheck Picture Block noise Sound Distorted sound Crosscut noiseNoise (static, background noise, etc.) Dot noiseThe sound level is too low. Picture disruptionThe sound level is too high. Not bright enoughThe
7、sound level changes. Too bright Flickering color Color fading 43 DMR-EH57GN 44 DMR-EH57GN 11 Block Diagram 11.1. Power Supply Block Diagram H H H H TIMER +5V UNREG +38V 8IC7503- D7506 TO U/V TUNER D B A C E F H G ANA+3.3V X SW+3.3V X SW+3.8V X SW+3V IC7501- 16 (X SW+3.3V OUT) Q1502 (REG.ANA+3.3V) IC
8、1521 VOUTVIN1 45 8 GND CONT DI P ON IC7501- 44 SECTION TIMER FROM 15 P1501P1102X SW+3.8V 12,13 P1501P1102X SW+3V 1,2,3 P1501P1102X SW+5.8V 9,10,11 P1501P1102X SW+12V TRANSFORMER POWER SWITCHING DISPLAY HEATER T7501 71 IP1501 21 IP7501 21 PS+11.6V8846IC3001- ,IC4009- ,IC4012- PWR SAVE :ON IC7501- 79
9、SECTION TIMER FROM ( :ON) QR7401 (REG.PS+11.6V) IC7401 VOUTVIN3 5 :ON 2 1 GND H H DR+12V DR P ON IC7501- 42 SECTION TIMER FROM ( :ON) QR1501 FET DS G Q1509 (DR+12V OUT) 1 2 3 5 6 7 8 4 AC INLET P1101 SURGE SUPPRESSOR AND SURGE ABSORBER F1101 VA1110,L1120,L1121D1140,C1143 RECTIFIER T1150 POWER SWITCH
10、ING TRANSFORMER 12 P1 2 134 9 5 IC1150 (SWITCHING IC) VCCGNDZ/C F/B10 8 7 P2 V2 V1 7VIN S1B S1A S1C S2 S3B S3A 2 3 4 5 1 3 2 D1270 D1400 SWITCHING QR1800,QR1801 1 2 7 6 Vin PW ON FET Gate Drive GND IC1601 (DC/DC CONVERTER) FET DS G 2 4 5 6 7 1 3 8 Q1600 (REG.X SW+5.8V) 4 32 1 Q1200 (FEED BACK) 1 2 3
11、 IC1200 (ERROR VOLTAGE DET.) COLDHOT POWER P.C.B.MAIN P.C.B. DMR-EH57GN Power Supply Block Diagram (1/2) 8 Current Sense 6 1 DMR-EH57GN 45 FET DS G Q1501 (DR+5V OUT) 41 2 5 6 3 H H H L L X SW+5.8V JC REG.+5V PS+5V GND BOOSTER+5V AU+5V ANA+5V TU P ON IC7501- 43 SECTION TIMER FROM (REG.AU+5V) IC4001 V
12、OUTVIN5 2 :ON H :ON 3 4 GND CONT (REG.ANA+5V) IC1520 VOUTVIN5 23 1 GND DR+5V X SW+3.8V (REG.DR+5V) IC1506 VOUTVIN4 31 2 GND (REG.+5V) IC1510 VOUTVIN5 2 :ON 3 4 GND 948442IC3001- / / TO U/V TUNER (REG.BOOSTER+5V) IC7402 VOUT CONT 5 2 3 GND 1 VIN IC7501- 12 IR7501-3 ,IC7504- ,1343 909962IC7501- / / 73
13、IC7501- 2IC4901- RESET P FAIL X SW+5V X SW+5V 7 (REG.X SW+5V/RESET) IC7503 RESET 5V DETOUT XSW5VOUT VOUT VIN 1 GND 402586IC3001- / / / (REG.PS+5V) IC7403 VOUTVIN5 32 1 CONT HDMI P.C.B.MAIN P.C.B. DR+12V B A C E F H G DMR-EH57GN Power Supply Block Diagram (2/2) 352863IC7301- / / / IC7302 21VDDOUT (RE
14、SET) 26IC7301- TO U/V TUNER IC7404- D+3.8V 60,62 P7402P59001 ANA+3.3V D+3.3V 56 P7402P59001 XSW+3V 42 P7402P59001 XSW+3.8V 4 P7501P56101 XSW+5.8V_AV 2 P7501P56101 XSW+2.5V 5 P7501P56101 9 P7501P56101 34 P7402P59001 ANA+5V 76 P7402P59001 X SW+12V 64,66,68,70,72,74 P59001P7402 POWER OFF 30 P59001P7402
15、 4 P1503 TO HDD TO DIGITAL P.C.B. TO DIGITAL P.C.B. TO/FROM DIGITAL P.C.B. FROM TIMER SECTION FROM TIMER SECTION 1 P1503 25 AU+5V DR+5V DR+12V P59001P7402 14,16 P59001P7402 22,24 DR+5VP59001P7402 L 8 P56102- 18 VIN1 3 5VO (REG.+5V) IC56105 CONT IC56103/IC56107(+3.3V)VIN1 3 5VOUT (REG.+3.3V) IC56104
16、ON HDR P ON IC7501- 42 SECTION TIMER FROM L H IC56103(+1.2V)VIN1 2 3VOUT (REG.+1.2V) IC56106 ONH HDD PFAIL IC7501- 40 HHDMI P5 ON IC7501- 54 10 P7501P56101HHDMI P3 ON IC7501- 34 QR1503 H( :ON) D 8 6 4 5 (IC PROTECTOR) IP7502 21 DMR-EH57GN 46 11.2. Analog Video Block Diagram (SW17C) a b (SW17V) a b (
17、SW17Y) a b DMR-EH57GN Analog Video Block Diagram V/Y IN DM CPN CIN DM MAIN P.C.B. 1.0V 2.3V 5V :PB SIGNAL:REC SIGNAL CLAMP V TUNER 30 INTERLACE PROGRESSIVE/ VIDEO OUT COMPONENT Y PB PR 1 4 JK3903 3 2 RED/C15 VIDEO/Y19 GREEN11 (TV) AV1 BLUE7 21PIN JACK JK3901 OUT C Y S-VIDEO JK3001 9 10 OUT VIDEO OUT
18、 JK3001 15 13 (DECODER/EXT) AV2 VIDEO19 21PIN JACK JK3901 TU7802 U/V TUNER 17 OUT VIDEO DIGITAL P.C.B. TO P59001P7402 71 75 P7402P59001 P59001P7402 83 88 P7402P59001 P59001P7402 84 87 P7402P59001 LOGIC IIC BUS SDA 89 SCL 88 SECTION TIMER FROM/TO IIC DATA IC7501- 30 29IC7501- IIC CLK BQ7501,Q7503- (S
19、W10) CLAMP CLAMP CLAMP CLAMP BIAS CLAMP SLICER 85 OUT ADC V/Y 83 OUT C-ADC 81 TUNER V AV2 V/Y AV2 R/C AV3 V AV3 C AV3 Y AV1 V CIRCUIT SWITCH SELECT OUTPUT ADC OUT V AV2 28 SV2 e d c b a OUT V/Y/C AV1 26 SV1 e d c b a a b (SW9) OUT V 24 23 a b (SW8) OUT C 22 (SW7) a b OUT Y 20 19 OUT G AV1 17 6MHz (S
20、W5) 12MHz a b c 15 OUT Y COMP 14 (SW6) a b c d OUT B AV1 12 OUT B-Y COMP 11 6MHz (SW4) 12MHz a b c d OUT R-C AV1 9 (SW3) a b c (VIDEO PROCESSOR) IC3001 OUT R-Y COMP 7 (SW2) a b c (SW1) 12MHz 6MHz CLAMP BIAS CLAMP/ CLAMP BIAS CLAMP/ + LPF 6MHz CLAMP BPF 6MHz BIAS a b CLAMP BIAS c b a AV2 V/Y AV2 B AV
21、2 G AV2 R/C AV3 V AV3 C AV3 Y AV1 V AV2 V/Y AV2 B AV2 G AV2 R/C AV3 V AV3 C AV3 Y 31 5 3 1 (DECODER/EXT) AV2 VIDEO/Y BLUE GREEN RED/C 20 7 11 15 21 PIN JACK JK3901 VIDEO IN 37 S-VIDEO IN 45 AV3 JK3802 FRONT JACK AV3 JK3801 FRONT JACK 41 7 6 4 3 2 1 4 3 33 99 97 95 93 91 AV1 VIDEO (TV) AV1 20 21 PIN
22、JACK JK3901 FROM DIGITAL P.C.B. BPBOUT DM GPYOUT DM RPROUT DM Y OUT DM C OUT DM P59001 67 P7402 P7402P59001 63 59 P59001P7402 51 P59001P7402 55 P7402P59001 AV4 V AV4 Y AV4 C 14 1535 JK3001 REAR JACK AV4 VIDEO IN 4 31 24 3 S-VIDEO IN 39 JK3001 S-VIDEO AV4 43 Y C AV4 V AV4 Y AV4 C AV4 V AV4 Y AV4 C CL
23、AMP BIAS CLAMP DMR-EH57GN 47 11.3. Analog Audio Block Diagram 59 AV4 L IN REAR JACK JK3001 AUDIO AV4 L IN AV4 R IN 18 17 21 20 AV4 R IN 51 DMR-EH57GN Analog Audio Block Diagram OUT (SA4L) SELECT SWITCH OUTPUT AV2 (DECODER/EXT) (TV) AV1 1.0V 5V 2.3V :PB SIGNAL:REC SIGNAL IEC OUT 1 (DIGITAL AUDIO OUT)
24、 OPTICAL IC4901 P.C.B. DIGITAL FROM P59001P7402 44 AADC L AADC R AUDIO OUT Ch1(L) AUDIO OUT Ch2(R) MIX L OUT2 MIX R OUT2 AUDIO OUT Ch2(R) AUDIO OUT Ch1(L) REAR JACK JK3001 (R) LINE OUT (L) LINE OUT 21 19 16 18 P.C.B.DIGITAL TO P7402 31 P59001 P7402P59001 29 (DECEODER/EXT) AV2 1 3 (TV) AV1 3 1 21 PIN
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