Zenith ZRY-316 Manual Download

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3-7

2. SYSTEM/KEY CIRCUIT

(1) AUTO STOP

(2) The unstable loading of a Cassette tape

Auto Stop

Does the H/SW waveform
appear at IC501 Pin18?

Do the T-UP Reel Pulses
appear at IC501 Pin80?

Is 12V applied to PMC01
Pin8?

Check the Drum Motor
signal.

Check the Power Circuit.

Check the power.

Is 5.0V applied to the
R531?

Refer to SMPS 5.3VA

troubleshooting.

Check IC501
Pins22, 23, 24, 25.

Does 5.0V appear at the
RS501?

Replace the T/UP Reel
Sensor (RS501).

Check the CST SW and
the peripheral circuitry.

Replace the IC501.

The unstable loading of a
Cassette tape

Does the “H” signal appear
at IC501 Pin58 during
inserting the CST ?

Does the “L” signal appear
at IC501 Pin10 while
inserting the CST?

Check the Deck
Mechanism.

Note :

Auto stop can occur because Grease or Oil has dried up

YES

VCR ELECTRICAL TROUBLESHOOTING GUIDE

Summary of Contents for ZRY-316

Page 1: ...1 1 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 2 SERVICING PRECAUTIONS 1 3 THE STEPS FOR CHANGE THE OPTION CODE 1 4 UP DATING PROGRAM 1 5 SPECIFICATIONS 1 7...

Page 2: ...solder splashes or sharp solder points Be certain to remove all loose foreign par ticles 4 Check for physical evidence of damage or deterioration to parts and compo nents for frayed leads or damaged...

Page 3: ...ve Parts include Metal panels Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such componen...

Page 4: ...GHT for select the position of option Use Direction Key at remocon UP DOWN for change the option After finish edit code of option push ENTER at remocon For finishing and intialized the option code pus...

Page 5: ...apture like figure 1 And you have three choice 1 Main It s mean if you chose this it ll up dating only DVD prgram 2 Loader It s mean if you chose this it ll up dating only Loader program 3 ALL It s me...

Page 6: ...nd New CD Write Version and Press REC key once more 6 The LOADER update will be on progress And tray will open 7 Remove the disc and wait until finish 8 The tray will be close and open automatically a...

Page 7: ...tion 60 dB DVD Specifications Laser system Semiconductor laser wavelength 650 nm Frequency response DVD PCM 48 kHz 8 Hz to 22 kHz CD 8 Hz to 20 kHz Signal to noise ratio 95dB Harmonic distortion 0 008...

Page 8: ...2 1 SECTION 2 EXPLODED VIEWS CONTENTS EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Deck Mechanism Section RL 05 2 3 3 Packing Accessory Section 2 4...

Page 9: ...et and Main Frame Section 283 280 284 469 286 457 A43 285 A48 274 261 452 261 261 266 263 264 468 265 465 320 260 A44 300 A00 457 470 257 256 255 469 463 250 463 463 469 A52 A60 457 278 457 A50 A47 A5...

Page 10: ...1434 1025 1025 1030 1432 1038 1029 1432 1021 1432 1432 1032 1033 1011 1019 1020 1019 1009 1012 1013 1435 1014 1016 1015 1017 1018 1018A 1018B 1018C 1018E 1018D 1006 1436 1024 1433 1029 1027 1027 1005...

Page 11: ...ccessory Section BATTERY 808 BAG 804 PACKING 803 806 INSTRUCTION ASSEMBLY CABLE COAXIAL 810 CABLE ASS Y RF 801 REMOCON 900 FILTER 826 BOX CARTON 802 PACKING 803 811 812 PLUG ASS Y 1WAY PLUG ASS Y 2WAY...

Page 12: ...4 KEY P C BOARD 3 64 5 TIMER P C BOARD 3 64 VDR PART VDR ELECTRICAL TROUBLESHOOTING GUIDE 3 66 1 POWER SMPS CIRCUIT 3 66 2 NO COMPONENT VIDEO SIGNAL WHEN PLAYING DISC 3 68 3 NO COMPOSIT S VIDEO SIGNAL...

Page 13: ...VCR VDR ENA AMP CLK AMP RX AMP TX AMP READY AMP MUTE NC 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 P6603 P6602 PM601 PN302 PN302 PN301 PN301 PMD01 PMD02 PN304 CON401 CON401 PPM01 P101 P3D01 P3D03 P104 P103 P...

Page 14: ...SW signal to the starting point of the ver tical synchronized signal to 6 5H 0 5H 416 s 1H 64 s PG Adjustment Method a 1 Playback the SP standard tape b 2 Wait for 3seconds with F P REC key and PLAY...

Page 15: ...e D102 normal Check or Replace the D102 Replace the D121 Replace the IC103 Replace the D126 Replace the D129 Replace the D130 Replace the D127 Replace the D128 YES YES YES YES YES YES YES YES YES YES...

Page 16: ...Q126 Is the Vcc 13V sup plied to Q126Collector Is the Vcc 33V sup plied to Q126 Base Is the Q126 Nomal Check or Replace the D126 NO NO NO YES YES YES NO VFD Check or Replace the R107 Is the R107 Norma...

Page 17: ...D129 Is the Vcc 30V supplied to Q120 Collector Is the Vcc 33V supplied to Q121 Collector Is the Vcc 30V sup plied to Q120 Base NO NO Check or Replace the ZD153 NO Check the HSR H signal from com Check...

Page 18: ...5 3VA troubleshooting Check IC501 Pins22 23 24 25 Does 5 0V appear at the RS501 Replace the T UP Reel Sensor RS501 Check the CST SW and the peripheral circuitry Replace the IC501 The unstable loading...

Page 19: ...e DFG Pulses appear at PMC01 Pin11 Replace the Cap M Aren t the foil patterns and the Components between IC501 Pin 90 and PMC01 Pin11 shorted Replace the IC501 Refer to 2 No 12VA of Power section Do t...

Page 20: ...Does the CFG signal come into IC501 Pin87 Aren t the foil patterns and Components between IC501 Pin77 and PMC01 Pin9 short 2 SERVO CIRCUIT 3 When the Capstan Motor doesn t run NO NO NO YES YES YES Wh...

Page 21: ...5V applied to IC501 Pin99 Does FLD change when a function button is pressed Refer to SMPS 5 3VA Trouble Shooting Replace the defective switches YES NO NO 2 SERVO CIRCUIT 4 Keys do not work VCR ELECTRI...

Page 22: ...e Video signal appear at the PMD02 Pin5 Check the 5 0V 5 3VA Line Power Circuit Is I2 C BUS signal applied to the IC301 Pins73 74 Check C327 AGC Replace IC301 Check the Video Buffer Q310 Q605 Check th...

Page 23: ...k the System Circuit IC501 Pin23 Check the V H S W level Check R342 Refer to SYSTEM I2 C BUS CHECK Trouble Shooting Is the V H S W signal applied to IC301 Pin80 Is the V H S W H about 3 4V at the IC30...

Page 24: ...47 50 52 60 84 92 Does the Color signal appear at IC301 Pin29 Check the line of the 5 0V 5 3VA Line Power Circuit Replace the X301 Check the Color Pass Does the X301 3 58MHz osxillate Replace the IC3...

Page 25: ...C501 Pin74 Replace the IC301 Is the REC H signal about 4V applied to the OSC Check the circuit of the IC301 Pin86 90 Check REC Luminace pass Color pass Does the REC RF signal appear at the IC301 Pins8...

Page 26: ...dio of IC801 Pins53 57 Check the SC901 JK601 Check the DVD Audio out NO Check the Tuner Part NO Check the Power 5 0V 12V YES NO Check the IC501 Pins71 72 NO Replace IC801 NO Check the Audio of PMD02 P...

Page 27: ...CH YES Do Audio Signals appear at IC802 Pin53 L CH 57 R CH YES Check the Audio of PMD02 Pins19 21 YES Check the Audio of PMD02 Pins23 25 YES Check the JK601 Check Power 5 0V 12V NO Check IC501 Pin27 A...

Page 28: ...Audio signals appear at IC801 Pins53 57 YES Do FM Audio signals appear at IC801 Pin36 YES Check the Contact Point of Drum Connector if good then Replace the Drum YES Check Power 5V 12V NO Check ports...

Page 29: ...NO Is TV displayed on FLD displayed YES Is 5V applied to TU701 Pin 3 NO Is High applied to TU701 Pin 4 YES Does the Video signal appear at Pin 16 of TU701 YES Replace TU701 YES Set TV VCR SW to VCR us...

Page 30: ...o TV sound Check the Vcc of IC801 Pin58 YES Check Power Vcc 12V NO Check IC801 Pin 43 DATA Pin 42 CLOCK HIGH YES Check IC801 Pin 48 TUNER SIF NO Replace IC801 YES Check IC501 Pin 71 CLOCK Pin 72 DATA...

Page 31: ...C129 RECTIFIER SMOOTING BLOCK D123 C126 L124 C127 RECTIFIER SMOOTING BLOCK D122 C123 L123 C125 PHOTO COUPLER IC105 ERROR AMP IC106 FEED BACK BLOCK R131 R132 C141 R133 R161 R162 R163 12V REG S W Block...

Page 32: ...in Conv1 FBC Video ALC 2HD Model Only 4HD 4HD Hi Fi Model Only 3 22 3 23 2 AVCP BLOCK DIAGRAM 1 PB Mode 28 29 11 49 53 55 46 15 17 19 18 36 40 38 37 51 36 30 32 9 8 11 S W VIDEO IN DVD TV VIDEO IN 45...

Page 33: ...0 88 49 40 37 98 34 IC501 M37760 MODE S1 I Limit MODE S2 MODE S3 MODE S4 62 VDR ENA 66 VDR DATA 65 VCR DATA 67 VCR ENA T UP Sensor T UP Reel SUP Reel CST IN Vss AMP Vss OSD Vss SYSCON Vcc SYSCON Vcc S...

Page 34: ...VDR A R 27 Front A L 29 Front A R To AVCP To AVCP From AVCP VIDEO SW IC IC601 IC601 VIDEO AMP IC JK601 A V JACK IEC 958 From PMD01 Pin From To Hi Fi IC801 To Hi Fi AV1 Video in AV1 Audio in L R To TUN...

Page 35: ...5V CONTROL V IN RF AGC NC ENABLE CLOCK DATA AFT A OUT SIF TU 30V NC V OUT 999 GND 100 AFT 731 TU V OUT 716 MOD A IN 61 MOD CTL 106 5V 26 VCR H 671 MOD VEDIO 71 IIC CLK 72 IIC DATA 781 SIF OUT 1 2 3 4...

Page 36: ...1 EE Mode System IC801 AN3662 AN3663 IC301 HA118725NF VCA EQ AMP 53 62 6 A OUT R DATA CLOCK R P HEAD N A IN 73 74 95 94 96 From u COM 57 A OUT L OUTPUT SELECTOR EQ 2 PB Mode IC301 HA118725NF IC801 AN3...

Page 37: ...is Defective 28V No Power Q120 or ZD153 are Defective NOTES Symbol denotes AC ground NOTES Symbol denotes DC chassis ground NOTE Warning NOTE Parts that are shaded are critical NOTE With respect to r...

Page 38: ...3 34 3 35 A B C D E F G H I J K L M N O P Q R S T 2 TUNER CIRCUIT DIAGRAM...

Page 39: ...3 36 3 37 A B C D E F G H I J K L M N O P Q R S T 1 14 WAVEFORM 4 3 2 7 8 13 12 11 2 2 2 2 3 9 10 6 3 A V CIRCUIT DIAGRAM...

Page 40: ...3 38 3 39 A B C D E F G H I J K L M N O P Q R S T 4 Hi Fi CIRCUIT DIAGRAM...

Page 41: ...3 40 3 41 1 2 7 4 3 6 5 WAVEFORM A B C D E F G H I J K L M N O P Q R S T 5 SYSTEM CIRCUIT DIAGRAM...

Page 42: ...3 42 3 43 A B C D E F G H I J K L M N O P Q R S T 6 JACK CIRCUIT DIAGRAM...

Page 43: ...A B C D E F G H I J K L M N O P Q R S T 3 44 3 45 7 TIMER CIRCUIT DIAGRAM 2 TOOL...

Page 44: ...3 46 3 47 8 TIMER CIRCUIT DIAGRAM 3 TOOL 8 TOOL A B C D E F G H I J K L M N O P Q R S T...

Page 45: ...3 48 3 49 9 TIMER CIRCUIT DIAGRAM 4 TOOL A B C D E F G H I J K L M N O P Q R S T...

Page 46: ...3 50 3 51 10 TIMER CIRCUIT DIAGRAM 6 TOOL A B C D E F G H I J K L M N O P Q R S T...

Page 47: ...3 52 3 53 11 TIMER CIRCUIT DIAGRAM 7 TOOL A B C D E F G H I J K L M N O P Q R S T...

Page 48: ...Vp p IC301 Pin 73 PB REC mode 5Vp p IC301 Pin 74 PB REC mode 5Vp p IC301 Pin 77 REC mode 340mVp p IC301 Pin 42 PB mode 300mVp p IC301 Pin 53 PB mode 400mVp p IC301 Pin 80 PB mode 3 6Vp p IC301 Oscillo...

Page 49: ...0 90 4 88 4 88v 91 0 0 92 0 0 93 5 04v 5 04v 94 4 88 0 95 4 98 4 98 96 0 0 97 0 0 98 4 98 4 98 99 20m 4 98v 100 0 0 1 4 88 4 88v 2 1 46 1 48 3 1 38 1 38 4 0 0 5 2 26v 2 24 6 2 38 0 7 0 0 8 0 0 9 0 0...

Page 50: ...3 58 3 59 PRINTED CIRCUIT DIAGRAMS 1 VCR P C BOARD...

Page 51: ...3 60 3 61 2 SMPS P C BOARD LOCATION GUIDE...

Page 52: ...3 62 3 63 3 JACK P C BOARD LOCATION GUIDE...

Page 53: ...3 64 3 65 BOTTOM VIEW 5 KEY P C BOARD 6 Timer P C BOARD LOCATION GUIDE TOP VIEW TOP VIEW BOTTOM VIEW...

Page 54: ......

Page 55: ...Replace the IC106 Replace the D123 Replace the D124 Replace the D125 YES YES YES YES YES YES YES YES YES Is Vcc 14V 17V supplied to IC101 Pin7 NO Are the D122 normal Is there about 2 5V at the IC106 P...

Page 56: ...pin4 NO Check the DVD PWR CTL H signal from com NO YES Check the IC151 and Replace YES No 1 8V Check or Replace the D123 Is there about 2 3V at the IC160 pin1 Is there about 3 3V 5V at the IC60 pin4 N...

Page 57: ...al Component No Pr Signal Check IC201 208PIN Check IC201 205PIN Check IC201 211PIN R208 C204 L202 R208 C204 L202 R208 C204 L202 Check IC201 131 Vin_CLK Check IC201 ATAPI interface Power and Other Circ...

Page 58: ...0 PIN Check IC301 68 PIN Check IC301 66 PIN Check IC301 Vout 0 7 FS454_CLK 63 PIN and Other Circuits YES YES YES YES YES YES YES YES YES NO NO NO NO 4 NO COMPOSIT S VIDEO SIGNAL WHEN PLAYING DISC P SC...

Page 59: ...JACK signal TU701 1 17 Check signal And circuit Check PN302 8 9 Check PN302 8 9 Check IC302 1 8 C331 Check PN304 7 Check L305 C336 Check IC303 80 CLK Power and other circuits Check IC303 IC101 Vin 7 0...

Page 60: ...ying DISC no audio output check Check IC404 power and other circuits NO YES IC404 10 12 Check audio signals YES Check IC402 power And Other circuits YES NO YES 6 WHEN PLAYING DISC NO AUDIO OUTPUT 7 NO...

Page 61: ...NO Check PN302 5 6 and Front Jack Cable NO Check FFC Cable and VCR part NO Check IC804 power and other circuits NO YES YES PN304 19 22 Check audio signals YES IC804 10 12 Check audio signals YES Check...

Page 62: ...NT JACK SPI Bus Serial Comm VDR_RESET_ L G_Y B_Pb R_Pr IEC958 A_L_R_OUT Y C CVBS_OUT P SCAN ON MD 63 0 M A 10 0 MCLK 1 0 BUFFER 74LCX125 EEPROM 24LC16B I2C Control MD 31 0 MA 10 0 MD 31 0 M A 10 0 CS9...

Page 63: ...Engine UNIT IDE I F HOST Interface UNIT VIDEO Engine UNIT 1394 AV Interface PLL DV V Decod er ARC Micro Controll er CPRM Engine SDRAM Control UNIT Reg Bus 16bit Data Bus 64bit SYSCLK DV1394 PHY VIDEO...

Page 64: ...3 75 3 MPEG DECODER CS98202 INTERNAL BLOCK DIAGRAM...

Page 65: ...3 76 4 DIGITAL VIDEO DECODER TVP5146PFP INTERNAL BLOCK DIAGRAM...

Page 66: ...T 1 0 DVCLK PD 7 0 TPA TPB R 656 From A Video IN R 656 From D V1394 IN 27MHz REC MODE 27MHz DV1394 IN 27MHz PLAY MODE I2C Contro l I2C Control ANALOG VIDEO REC EE DISC PLAY DV1394 High Impedance state...

Page 67: ...B_Pb R_Pr Out DV A V IN ANALOG VIDEO INPUT DIGITAL VIDEO INPUT VIDEO ENCODER CS98202 CS92686 CS92686 VIN 7 0 VIN_CLK VOUT 7 0 VOUT_VSYNC VOUT_CLK CS98202 VOUT 7 0 VOUT_VSYNC VOUT_CLK G_Y B_Pb R_Pr Ou...

Page 68: ...EC DECODER CS98202 Analog Audi o Out Digit al Audi o Out MCLK SDA BCK LRCK SDA_IO BCK_IN_DEC LRCK_IO BCK_IN_ENC DV A V IN SDA BCK LRCK MCLK Analog Audi o In ANALOG AUDIO INPUT CS92686 Audi o CODEC DEC...

Page 69: ...3 81 3 82 CIRCUIT DIAGRAMS 1 MPEG ENCODER CS92686 CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 70: ...3 83 3 84 A B C D E F G H I J K L M N O P Q R S T 2 MPEG DECODER CS98202 CIRCUIT DIAGRAM...

Page 71: ...3 85 3 86 A B C D E F G H I J K L M N O P Q R S T 3 VIDEO CONNECTOR CIRCUIT DIAGRAM...

Page 72: ...A B C D E F G H I J K L M N O P Q R S T 3 87 3 88 4 AUDIO ADC DAC INTERFACE CIRCUIT DIAGRAM...

Page 73: ...3 89 3 90 A B C D E F G H I J K L M N O P Q R S T 5 DV PART CIRCUIT DIAGRAM...

Page 74: ...IC501 1 DV_CLK IC102 103 105 106 35 SDRAM_CLK IC303 43 47 50 52 R656_DATA IC201 235 SPDIF CN2034 25 HM_RD CN203 23 HM_WR IC201 226 PCM_XCLK IC201 224 PCM_BCK IC201 234 PCM_DATA IC301 222 PCM_LRCK IC20...

Page 75: ...3 21 3 22 3 24 40 0 0 0 41 0 0 0 42 0 0 0 43 3 21 3 22 3 26 44 3 21 3 23 3 23 45 0 0 0 46 0 0 0 47 0 0 0 48 0 0 0 49 0 0 0 50 3 21 3 24 3 25 51 0 0 0 52 3 21 3 24 3 24 53 3 21 3 25 3 25 54 0 0 0 55 0...

Page 76: ...03 2 03 2 06 41 0 0 0 42 2 01 2 06 2 07 43 1 87 1 91 1 91 44 3 2 3 24 3 24 45 2 04 2 06 2 1 46 1 84 1 84 1 87 47 0 0 0 48 2 01 2 06 2 06 49 0 0 0 50 0 0 0 1 3 2 3 24 3 24 2 0 27 0 28 0 28 3 3 2 3 24...

Page 77: ...4 1 0 0 0 2 4 78 4 76 4 78 3 4 75 4 75 4 76 4 0 0 0 5 4 76 4 78 4 76 6 4 75 4 76 4 75 7 0 0 0 8 4 76 4 78 4 78 9 4 75 4 76 4 75 10 0 0 0 11 4 76 4 76 4 78 12 4 75 4 75 4 76 13 0 0 0 14 4 83 4 83 4 83...

Page 78: ...3 99 3 100 PRINTED CIRCUIT DIAGRAMS 1 VDR P C BOARD TOP VIEW...

Page 79: ...3 101 3 102 2 VDR P C BOARD BOTTOM VIEW...

Page 80: ......

Page 81: ...1 DECK MECHANISM ADJUSTMENT Fixtures and tools for service 4 12 1 Mechanism Assembly Mode Check 4 13 2 Previous Preparation for Deck Adjustment 4 14 3 Torque Measuring 4 14 4 Guide Roller Height Adjus...

Page 82: ...A 5 T 17 19 Arm T up 1 hook A 5 T 20 Supporter capstan Chassis Hole A 6 B 17 18 21 Belt Capstan Motor Capstan3 screws A 6 B 22 Lever F R Locking Tab A 6 B 21 22 23 Clutch Assembly D37 Washer A 6 B 24...

Page 83: ...ate the flat cable from the Drum FPC and the Capstan Motor 2 Release 3 screws S1 on the bottom side of the chassis and separate the drum assembly 3 Release the hooks H1 H2 and separate both the holder...

Page 84: ...SEMBLY OF DECK MECHANISM 4 3 B E C Plate Top Arm Assembly F L Gear Assembly Rack F L Opener Door Holder Assembly CST B H3 A B Lever Assembly S W H4 E Fig A 2 Fig A 2 1 Fig A 2 2 Fig A 2 5 Fig A 2 6 Fi...

Page 85: ...Disassembly of Gear Assembly Rack F L Fig A 2 3 1 Separate the hook H3 while leaning ahead the hook 3 after moving the gear assembly rack F L toward the arrow A direction 2 Separate the gear assembly...

Page 86: ...rm Assembly Cleaner Fig A 3 3 1 Separate the A part of Fig A 3 1 from the embossing of chassis and hold it up while turning it anti clockwise 11 Head F E Fig A 3 4 1 Separate the A part of the head F...

Page 87: ...hile holding it upward 14 Arm Assembly Tension Fig A 4 2 1 Release the spring tension the hook H7 from the arm assembly tension 2 After releasing the hook H8 of the base tension sepa rate it while hol...

Page 88: ...e 17 Opener Lid Fig A 5 2 1 Release the B part of the opener lid from the embossing of chassis 2 Disassemble the opener lid upward while turning it anti clockwise 18 Arm Assembly Pinch Fig A 5 3 1 Hol...

Page 89: ...90 deg clockwise with a driver for disassembly 21 Belt Capstan Fig A 6 2 Motor Capstan Fig A 6 3 1 Separate the belt Capstan 2 Undo 3 screws S6 on the bottom side of chassis and dis assemble it upwar...

Page 90: ...r Fig A 7 3 1 Release the hook H11 of the gear sector and then hold the gear sector upward 26 Brake Assembly Capstan Fig A 7 4 1 Release the locking tab L2 on the bottom side of the plate slider and t...

Page 91: ...assem bly P2 and the P3 are adjusted straightly and then corre spond the gear section groove A to the plate slider hole B 32 Base Assembly P2 Fig A 8 3 Base Assembly P3 Fig A 8 4 1 Disassemble the ba...

Page 92: ...se tension from the embossing of chassis 2 Hold the base tension upward while turning it anti clock wise 35 Arm assembly Idler Jog Fig A 9 2 1 Push both B C parts in Fig A 9 2 toward the arrow directi...

Page 93: ...D00 D006 4 Torque gauge adaptor Part No D09 R001 5 Post height adjusting driver Part No DTL 0005 6 Type driver 5 2 Alignment tape Part No NTSC DTN 0001 PAL DTN 0002 3 Torque gauge 600g Cm ATG Part No...

Page 94: ...frame and separate the deck assembly Check both the hole A of gear cam and the hole A of chassis correspond Fig C 1 5 Check the mode S W on the main P C board locates at a proper position as in B of t...

Page 95: ...les on the housing rail part of chassis to prevent detection of the end sensor If doing so proceeding to the stop mode is done In this status input signals of all modes can be received However operati...

Page 96: ...of oscilloscope to the RF envelope output point and the head switching output point 2 Tracking control playback Locate it at the center Set the RF output to the maximum value via the track ing contro...

Page 97: ...he A C head If it is Turn and adjust the tilt adjusting screw to ensure that the tape corresponds to the bottom guide of the P4 and recheck the tape path after pro ceeding play for 4 5 seconds 3 Where...

Page 98: ...n cutting off the REV mode CAUTIONS If the RF waveform is changed after adjusting the A C head perform fine adjustment to ensure the RF waveform is flat tened Adjustment Procedure 1 Connect the probe...

Page 99: ...ELOPE OUTPUT POINT V2 V1 V1 V1 V MAX 0 7 V1 V MAX 0 8 RF ENVELOPE OUTPUT HEAD RF SWITCHING OUTPUT POINT OSCILLOSCOPE Connection Diagram Waveform CH 2 CH 1 Checking Procedure 1 Check that locking time...

Page 100: ...VIEW Fig C 9 2 BOTTOM VIEW F E Head Video Head A C Head Pinch Roller Belt Capston Clutch Assembly A37 Fig C 9 3 Tape Transport System Pollution of Video Head or Tape Transport System Poor Sound Low S...

Page 101: ...C 9 4 Firstly try to use a cleaning tape 1 Use a cleaning patch if foreign materials are not removed with the cleaning tape due to severe dirty of the head Soak the cleaning patch in alcohol and put...

Page 102: ...Part PL 433 Yellow Gear Part PL 433 Yellow Boss Part Side Wall PL 433 Yellow Gear Part Side Application PL 433 Yellow Cam Part Side Application KG 684G Green Gear Sector Gear Cam Base Loading Gear Dri...

Page 103: ...PROTECTION MAINTENANCE AND CHECK OF VIDEO FUNCTION 4 22 Lever F R Base Tension GEAR AY P2 P3 LEVER F R Clutch Contact Part PL 433 Yellow Tension Arm Party Hinge Part PL 433 Yellow BASE TENSION PL 433...

Page 104: ...sensor Check syscon circuit NO YES YES YES YES NO NO 1 Deck Mechanism A NO NO NO No F R modes Is the present mode F R Mode Is the mode SW assembled correctly refer to Pages 4 14 Is the normal voltage...

Page 105: ...ge 4 14 Check Pinch spring Replace Drum Motor Check Servo Syscon Check the Syscon COM No cassette loading Insert the cassette Check CST Holder Assembly Is there variation for CST IN S W Output In Tape...

Page 106: ...nsors ok Check Syscon Circuit Check Syscon Circuit Check Servo Syscon Does the Capstan Motor turn Is the terminal voltage of the Drum Motor more than 2 3V Replace the Drum Motor Is the Vcc voltage of...

Page 107: ...C Board 5V YES Is there a short circuit between cassette switch and GND on main P C Board Remove the short circuit part or Replace the main P C Board NO Check Mode switch location and syscon circuit R...

Page 108: ...m Assembly Check the power of L D Motor Is the Cassette Holder Assembly assembled correctly Replace the F L Rear Rack Does the F L Gear Rack work Does the Door Opener work Does the F L Arm Assembly wo...

Page 109: ...4 28 EXPLODED VIEWS 100 A21 A23 A24 032 109 A22 054A 054 115 116 110 112 113 114 103 105 102 106 107 1 Front Loading Mechanism Section...

Page 110: ...EXPLODED VIEWS 4 29 008 011 031 079 017 032 024 406 031 021 028 029 026 A03 027 022 003 004 006 007 014 015 009 409 013 016 012 OPTIONAL PART A01 405 2 Moving Mechanism Section 1...

Page 111: ...EXPLODED VIEWS 4 30 052 517 061 056 518 052A 055 410 032 077 076 078 060 051 064 A11 A12 067 066 065 068 069 070 023 080 058 3 Moving Mechanism Section 2...

Page 112: ......

Page 113: ...FF SIGNAL CD 5 27 24 TRACK OFF SIGNAL DVD 5 28 25 TILT DRIVER SIGNAL DISC READING 5 28 26 RF WAVEFORM DVD 5 29 27 RF WAVEFORM CD 5 29 28 WOBBLE DVD R RW _READING 5 30 29 WOBBLE DVD R RW _READING WRITI...

Page 114: ...pin 4 1 of LCN202 12V 5V respectively after the power cable connecting Does the pin 3 of LIC303 change 0V to 3 3V at the power supply initial input mode Are the LX301 oscillating Power Is the pin 5 o...

Page 115: ...sc Does tray operate normally YES YES YES YES YES NO NO NO NO NO NO NO YES YES Does pick up move to inside Does laser turn on After eject tray insert DVD Disc and check rotation After eject tray Inser...

Page 116: ...C502 Check the communication line between LIC502 and LIC301 Is there tray control signal input LIC502 pin46 When LCN504 is open Is there tray drive signal output Is there tray drive voltage output LIC...

Page 117: ...output LIC301 pin 126 127 YES YES YES YES YES NO NO NO NO Is there sled drive signal input LIC502 pin 29 30 Is DRV CTRL1 signal H LIC502 pin35 Replace the LIC502 Replace the sled motor Is there sled d...

Page 118: ...C502 pin 26 Is there spindle drive voltage output LIC502 pin 11 13 16 Is there SFG signal input LIC301 pin 53 Replace the LIC301 Replace the LIC301 OK Is there spindle control DSP output LIC301 pin 12...

Page 119: ...tput normal in Focusing Up Down LIC301 pin 124 Go to Focus Actuator operating is abnormal Focus Actuator operating is abnormal Is there focus search control signal input LIC502 pin 5 Is there focus se...

Page 120: ...place the LIC301 Check the pick up FFC Replace the pick up After replacing Perform 5 Optical Power Setting from How to use Test tool Check the connection between LIC301 pin133 and LIC201 pin 85 Is TE...

Page 121: ...eplace the LIC201 Go to Tracking Servo is unstable Check the pick up FFC and LCN201 Replace the pick up unit Does focus servo operate normally Check pick up RF signal LIC201 Pin113 is 500 1000mVpp Che...

Page 122: ...VD level was about 0V Is there RF signal at LCN201pin 13 14 Is there RF signal at LIC201 pin 95 Check again after the replace LIC201 Is it OK Recognition Fail Case 3 DVD R RW Fail Is there AWOBBLE LIC...

Page 123: ...ameter check from How to use Test tool Execute C Laser Power Setup of How to use Test Tool Check reference voltage E F G FPD VRDC VWDC1 VWDC2 Is ALPC parameters valid Perform 4 LD Test check from How...

Page 124: ...How to use Test tool Select Mode DVD Test and perform Test from 4 LD Test of How to use Test tool Check the input of CD DVD pin 17 of LCN201 H Check the input of CD DVD pin 17 of LCN201 H Check the in...

Page 125: ...input of recording pulse pin 28 29 30 31 32 33 of LCN201 Check the input of FPD pin 19 of LCN201 END G Select Mode DVD Test and perform Test from 4 LD Test of How to use Test tool Check the input of...

Page 126: ...o to Writing Part Check Remove the dust fingerprint and if the disc has long width scratch change it Check the media DVD R RW Does the disc have any dust scratch fingerprint Finalized Disc If DVD R di...

Page 127: ...ng finish without any error Is the written file read normally OK Check and replace the connection of LIC301 pin 148 Eject tray Go to LD CHECK Is the re written file read normally Is SHAPCRE input sign...

Page 128: ...5 16 WAVEFORMS 1 POWER RESET Signal 2 Main Clock1 for IC202 16 9MHz POWER IN 12 V LCN302 PIN4 5V LCN302 PIN 1 SYSRST LIC303 PIN2 LX301 LIC301 PIN 2 GND LEVEL HRST LIC303 PIN 3...

Page 129: ...5 17 3 SDRAM Clock 4 TRAY OPEN CLOSE SIGNAL 1 MCLK LIC304 PIN 35 EJECT KEY LR504 TRAY LCN504 PIN 3 TRAY LCN504 PIN 4 CLOSE TRAY CTRL LIC502 PIN46 OPEN...

Page 130: ...AY OPEN CLOSE SIGNAL 2 6 SLED MOVE SIGNAL 1 EJECT KEY LR504 SDRV2 LIC502 PIN31 SDRV1 LIC107 PIN29 ZOOM A LCN501PIN 2 A LCN1501 PIN 1 TRAY CTRL LIC502 PIN46 LOAD SW LCN504 PIN 2 OPEN SW LCN504 PIN 1 CL...

Page 131: ...5 19 7 SLED MOVE SIGNAL 2 8 FOCUS SEARCH SIGNAL SDRV2 LIC502 PIN31 FDRV LIC502 PIN 5 F LIC502 PIN 52 F LIC502 PIN 51 SDRV1 LIC107 PIN29 A LCN501PIN 2 A LCN1501 PIN 1...

Page 132: ...5 20 9 LASER TURN ON SIGNAL F LIC502 PIN 52 LDEN DVD LCN201 PIN17 VRDC LCN201PIN 34...

Page 133: ...SC TYPE JUDGEMENT WAVEFORM CD CD R 10 DISC TYPE JUDGEMENT WAVEFORM CD SERIES FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC201PIN 113 FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC...

Page 134: ...SC TYPE JUDGEMENT WAVEFORM CD RW 13 DISC TYPE JUDGEMENT WAVEFORM DVD SERIES FDRV LIC502 PIN 5 FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC201PIN 113 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC2...

Page 135: ...TYPE JUDGEMENT WAVEFORM DVD_SINGLE R 15 DISC TYPE JUDGEMENT WAVEFORM DVD _DUAL FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC201PIN 113 FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF L...

Page 136: ...5 24 16 DISC TYPE JUDGEMENT WAVEFORM DVDRW 17 SPINDLE WAVEFORM1 FDRV LIC502 PIN 5 FE LIC201 PIN87 TE LIC201 PIN85 RF LIC201PIN 113 MDRV LIC502 PIN 26 REFOUT LIC502 PIN 42 SFG LIC502 PIN43...

Page 137: ...5 25 18 SPINDLE WAVEFORM2 19 FOCUS ON SIGNAL CD U LIC502 PIN11 V LIC502 PIN13 W LIC502 PIN16 SFG LIC502 PIN43 FDRV LIC301 PIN 124 FE LIC201 PIN87 TDRV LIC301 PIN 125 TE LIC201 PIN85...

Page 138: ...5 26 20 FOCUS ON SIGNAL CD 21 FOCUS ON SIGNAL DVD FDRV LIC301 PIN 124 FE LIC201 PIN87 TDRV LIC301 PIN 125 TE LIC201 PIN85 FDRV LIC301 PIN 124 FE LIC201 PIN87 TDRV LIC301 PIN 125 TE LIC201 PIN85...

Page 139: ...5 27 22 FOCUS ON SIGNAL DVD 23 TRACK OFF SIGNAL CD FDRV LIC301 PIN 124 FE LIC201 PIN87 TDRV LIC301 PIN 125 TE LIC201 PIN85 TE LIC106 PIN85 TZC LIC106 PIN74 MIRRBCA LIC106 PIN77...

Page 140: ...5 28 24 TRACK OFF SIGNAL DVD 25 Tilt Driver signal Disc reading TE LIC106 PIN85 TZC LIC106 PIN74 MIRRBCA LIC106 PIN77 TILTDRV LIC502 PIN47 TILT LIC502 PIN50 TILT LIC502 PIN49...

Page 141: ...5 29 26 RF WAVEFORM DVD 27 RF WAVEFORM CD RFP LIC201 PIN2 RFO LIC201PIN 113 RFI LIC201 PIN 95 RFP LIC201 PIN2 RFO LIC201PIN 113 RFI LIC201 PIN 95...

Page 142: ...5 30 28 WOBBLE DVD R RW _READING 29 WOBBLE DVD R RW _READING WRITING X1 SPEED AWOBBLE LIC201 PIN81 LPP HEAD LIC201 PIN 73 AWOBBLE LIC201 PIN81 LPP HEAD LIC201PIN 73...

Page 143: ...5 31 30 LD Enable DVD 31 LD Enable CD CD DVD LCN201 PIN 17 LDEN LCN PIN 38 CD DVD LCN201 PIN 17 LDEN LCN102 PIN 38...

Page 144: ...Power reading _ DVD RW 33 Laser Power Erase _ DVD RW VRDC LCN201 PIN 34 VWDC LCN201 PIN 36 VWDC2 LCN201 PIN 35 OPCTRG LIC301 PIN 151 VRDC LCN201 PIN 34 VWDC LCN201 PIN 36 VWDC2 LCN201 PIN 35 OPCTRG L...

Page 145: ...Laser Power Writing _ initial state 35 Laser Power Writing _Processing VRDC LCN201 PIN 34 VWDC LCN201 PIN 36 VWDC2 LCN102 PIN 35 OPCTRG LIC301 PIN 151 VRDC LCN201 PIN 34 VWDC LCN201 PIN 36 VWDC2 LCN20...

Page 146: ...5 34 The difference of DVD R RW DVD R RW discs and DVD ROM 1 Recording Layer 0 74um 3T 0 4 um DVD ROM Read Only Disc DVD R RW Disc...

Page 147: ...5 35 2 Disc Specification 3 Disc Materials 1 DVD ROM Single Layer Dual Layer...

Page 148: ...laser When a strong laser is applied to a disc the temperature of the organic dye material goes up the dye is decomposed and the substrate changes at the same time At this time a durable bit is create...

Page 149: ...a low reflection coefficient when it quickly cools off When a mid power laser is applied to heat gradually the recording material and then gradually cools it off it becomes crystal with a high reflect...

Page 150: ...for DVD RW has Type 1 and Type2 In Type 1 the mark with nT width is created by one top pulse and n 2 multi pulses Thus mark 3T is made by one top pulse and one multi pulse In Type 2 the mark with nT w...

Page 151: ...mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transition area 2th transition area Rim area Data Zone Lead in Zone Inner Drive Area Unrecorded Disc Outer Drive Area Inner Disc Te...

Page 152: ...rmed in IDT Zone 3 Layout of DVD RWdisc Data Zone Lead in Zone Unrecorded Disc Lead out Zone Inner Disc Test Zone in 2A7C80H 2DC80H Information Zone Center hole Clamping Zone Diameter 120 mm Diameter...

Page 153: ...bration Area in 203B0H 22F90H Unrecorded Disc Center hole Clamping Area Diameter 120 mm Diameter 15mm Disc Center Diameter 16mm Diameter 22mm 3th transition area Diameter 33mm Diameter 44mm 1th transi...

Page 154: ...temperature variation There are two power control loops in uPC3330 which are used with different combination for different applications Generally the first ALPC loop is used for read power control Th...

Page 155: ...ntium 3 500MHz Above RAM 64M Above Win98 Above Adjustment Program Dragon or ALPC for SVC ALPC Program recommended N Fl optional equipment USB ATAPI Interface needed when using USB Port from the laptop...

Page 156: ...lmn txt is a configuration file Determine how to connect The following contents are included when you open modelnm txt file The following contents are included when you open LGE connect 0 connect 0 is...

Page 157: ...CD DVD Selection Laser Power Setup window Laser Read Power On Laser Write Power On Laser off Used When inputting to EFROM after Lser power measurement When Laser Power Test ALPC Setup or LD Test Selec...

Page 158: ...D VWDC1 VW_FPD VW2 1 VW2 2 CD 2 4 0 08 0 53 0 22 0 02 0 01 DVD 2 4 0 08 0 7 0 2 0 04 0 01 0 43 0 05 0 2 0 02 0 08 0 02 0 2 0 03 Test result output when All OK OK Specification can be changed according...

Page 159: ...r Push Write power On Caution Light is very strong Never look at the light directly Measure optical power Write measurement value in Read Power and push LD off Push Measurement value is inputted to EE...

Page 160: ...ngs recorded in EEPROM IC302 Write down these settings on the paper perform optical power setting and press again then new optical power set tings will appear Compare these two parameters If there is...

Page 161: ...rameters CD 1 CD R READ Reference DAC 70 100 2 CD RW READ Reference DAC 70 100 DVD 1 DVD R READ Reference DAC 42 107 2 DVD RW READ Reference DAC 42 107 3 VWDC1 35 65 4 VWDC1 Offset 0 6 5 VWDC2 20 43 6...

Page 162: ...correctly Optical power mesurement procedure 1 Adjust optical power meter s wave length to DVD Generally 660 nm 2 Turn DVD LD on 3 Place sensor less than 3mm apart from pick up object lens perpendicu...

Page 163: ...152 LIC301 uPD63641 LIC201 uPC3340 LIC502 BD7954BFS Motor Driv er A 6 119 130 171 181 D 25 85 138 186 A 120 179 5V 11 30 40 45 57 89 98 111 114 REFI 38 REFO2 39 REFIN 134 VC 42 REFO1 13 FPDVC 2 4V PD...

Page 164: ...1 DISN RDIS WRPULSEP WRPULSEM PKPULSE1 P PKPULSE1M OFPULSEP OFPULSEM VWDC VWDC2 VRDC AADJ2 AADJ1 FADJ1 FADJ2 22 21 TEMP LD DRIVER LD DRIVER 150mA 250mA 325mA 150mA 38 ENABLE F 315MHz 260 360 10K 28 29...

Page 165: ...WE CAS RAS MCLK MCKE LIC302 E 2 PROM EPRCS SI SO SCLK RFI CONTROL LOGIC CP SCK SI SO EQCK1 EQCK2 TE TE SIG SEL TE LE PPALL TEC WRITE RF ROPC1 ROPC2 SWRF1 SWRF2 AL PC OPCTRG SHAPCRE SHAPCW WOBBLE S H...

Page 166: ...PD PD MECHA Level Shift TRAY TRAY HU HV HW FG gen PRE LOGIC Rev Det U V W L Shift L Shift L Shift PRE LOGIC A A B B TRK F TILT U V W Ti Tr DRV SFG MDRV TDRV FDRV SDRV1 SDRV2 BD7954BFS Motor Driver uP...

Page 167: ...5 55 5 56 CIRCUIT DIAGRAMS 1 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 168: ...5 57 5 58 2 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 169: ...5 59 5 60 3 COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T...

Page 170: ...2 39 20 0 11 21 2 38 22 0 11 23 0 24 2 38 25 2 38 26 1 71 27 0 28 0 29 0 30 5 06 31 0 32 0 33 0 34 0 35 0 36 2 52 37 2 38 3 34 39 1 68 40 5 07 41 1 57 42 1 61 43 0 44 1 26 45 5 07 46 2 36 47 2 36 48 2...

Page 171: ...5 63 5 64 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...

Page 172: ...5 65 5 66 2 MAIN P C BOARD LOCATION GUIDE...

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