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4-14

DECK MECHANISM ADJUSTMENT

Purpose: To insure smooth Transport of the Tape during each Mode of Operation.

If the Tape Transport is abnormal, then check the Torque as indicated by the chart below.

2. Preparation for Adjustment (To set the

Deck Mechanism to the Loading state
without inserting a Cassette Tape).

1) Unplug the Power Cord from the AC Outlet.
2) Disassemble the Top Cover and Plate Assembly Top.
3) Plug the Power Cord into the AC Outlet.
4) Turn the Power S/W on and push the Lever Stopper of

the Holder Assembly CST to the back for Loading the

Cassette without Tape.
Cover the Holes of the End Sensors at the both sides of
the Bracket Side(L) and Bracket Assembly Door to pre-
vent a light leak.
Then The Deck Mechanism drives to the Stop Mode.
In this case, The Deck Mechanism can accept inputs of
each mode, however the Rewind and Review Operation
can not be performed for more than a few seconds
because the Take-up Reel Table is in the Stop State
and can not be detected the Reel Pulses.

3. Checking Torque

The Values are measured by using a Torque Gauge and
Torque Gauge Adaptor with the Torque Gauge affixed.

The Torque reading to measure occurs when the Tape
abruptly changes direction from Fast Forward of Rewind
Mode, when quick bracking is applied to both Reels.

SRK

VIDEO

CASSETTE

TORQUE

METER

VHT-303

S

R

K

-

V

H T

- S

SR

K - V H T - T

300

250

200

150

50

0

300

250

200

150

50

0

100

Test Equipment/ Fixture

• Torque Gauge(600g/cm ATG)
• Torque Gauge Adaptor
• Cassette Torque Meter

SRK-VHT-303

Checking Method

• Perform each Deck Mechanism Mode without

inserting a Cassette Tape(Refer to above No.2
Preparation for Adjustment).

• Read the Measurement of the Take-up or Supply

Reels on the Cassette Torque Meter(Fig. C-3-2).

• Attach the Torque Gauge Adaptor to the Torque

Gauge and then read the Value of it(Fig. C-3-1).

NOTE:

Fig. C-3-2

Fig. C-3-1

Torque Gauge

Torque Gauge
Adaptor

Reel Table

Item

Fast Forward Torque

Rewind Torque

Play Take-Up Torque

Review Torque

Mode

Fast Forward

Rewind

Play

Review

Test Equipment

Cassette Torque Gauge

Cassette Torque Gauge

Cassette Torque Meter

Cassette Torque Meter

Measurement Reel

Take-Up Reel

Supply Reel

Take-Up Reel

Supply Reel

Measurement Values

More than 400g/cm

More than 400g/cm

40~100g/cm

120~210g/cm

Test Conditions

(Mechanism Condition)

• Play (FF) or Review (REW) Mode

NOTE:

• Cassette Torque Meter (SRK-VHT-303)

• Torque Gauge (600g.cm ATG)

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Содержание D35

Страница 1: ...t Year 2002 Summary 1 Cabinet Main Chassis 2 Electrical 3 Mechanism 4 Parts List 5 Published September 2002 by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville Al...

Страница 2: ...1 1 SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 2 SERVICING PRECAUTIONS 1 3 SPECIFICATIONS 1 4 LOCATION OF CUSTOMER CONTROLS 1 5...

Страница 3: ...er pipe conduit etc and the exposed metal lic parts one at a time Measure the AC voltage across the combination of 1500 ohm resistor and 15 mfd capacitor Reverse the AC plug by using a non polarized a...

Страница 4: ...Accessible Conductive Parts including Metal pan els Input terminals Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static ele...

Страница 5: ...p p 75 ohms RCA jack x 2 Audio output analog audio 1 1 Vrms 1 KHz 0 dB 330 ohms RCA jack L R x 1 RF OUT Channel 3 or 4 Switchable VCR Specifications Head system Four head helical scan azimuth system...

Страница 6: ...OUT VIDEO AUDIO Left Right SPEAKER Connectors DIGITAL AUDIO IN OPTICAL COMPONENT VIDEO OUT PROGRESSIVE SCAN Y Pb Pr DVD OUT FM Antenna Connectors AM Antenna Connectors S VIDEO OUT DVD OUT VIDEO OUTPUT...

Страница 7: ...BY PASS AUDIO CLEAR TITLE SETUP MENU VOLUME PLAY DISC MENU FORWARD RANDOM CM SKIP PAUSE STEP LEVEL DELAY AUX SUBTITLE 0 9 numerical buttons F G D E left right up down PROGRAM ZOOM ANGLE INPUT MARKER S...

Страница 8: ...2 1 SECTION 2 CABINET MAIN CHASSIS CONTENTS 1 EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Woofer Speaker Section 2 4 3 Speaker Section 2 5 4 Packing Accessory Section 2 6...

Страница 9: ...Main Frame Section 330 452 452 OPTIONAL PART A00 A46B A42 A26 A46 A46A 276 277 260 285 465 467 300 457 463 323 463 457 320 250 462 462 462 457 A43 D G 6 0 1 A49 264 266 263 265 262 452 A48A 284 280 28...

Страница 10: ...951 954 960 961 953 957 959 955 956 963 2 Woofer Speaker Section DTE 5100WE Woofer Speaker Section Part List...

Страница 11: ...2 5 3 Speaker Section DTE 550TE Speaker Section Part List 850 852 851A 851 853 854 857 858...

Страница 12: ...806 CABLE SET ASS Y RF 810 OPTIONAL PARTS 803A 803B 803C 820 PLUG ASS Y 1WAY BLACK OWNER S MANUAL BOX 801 802 REMOCON SHEET PACKING CASING PACKING CASING PACKING CASING PACKING CASING 900 803 804 CAB...

Страница 13: ...BOARD 3 52 2 KEY RIGHT P C BOARD 3 54 3 KEY LEFT P C BOARD 3 54 DVD PART ELECTRICAL TROUBLESHOOTING GUIDE 3 56 1 COM CIRCUIT 3 56 2 MPEG CIRCUIT 3 59 3 RF SERVO CIRCUIT 3 60 BLOCK DIAGRAMS 3 64 1 DVD...

Страница 14: ...me difference which is from the selected A B Head point of the H SW W136 W141 signal to the starting point of the vertical synchronized signal to 6 5H 0 5H 416 s 1H 64 s PG Adjustment Method a 1 Payba...

Страница 15: ...Is Vcc 12 28V sup plied to IC104 Pin3 Is the D129 nor mal Is there about 2 5V at the IC106 Vref Is the D127 normal Is the D126 normal Is the D125 normal Is the D124 normal Check the Main PCB Power sup...

Страница 16: ...Replace the BD101 Replace the TH101 NO NO NO Is the D108 normal Check or Replace the D108 Replace the D122 Replace the IC103 YES YES YES YES YES YES YES Is Vcc 12 23V sup plied to IC101 Pin3 Is the D...

Страница 17: ...er to SMPS 5 3VA troubleshooting Check the IC501 Pins74 75 76 77 Do T UP Reel Pulses appear at the Q514 Base terminal Replace the T UP Reel Sensor RS501 Check the CST SW and the peripheral circuitry R...

Страница 18: ...Motor 2 doesn t run Do the DFG Pulses appear at the PMC01 Pin11 Replace the Juction PCB Drum Motor Aren t the foil patterns and the Components between IC501 Pin38 and PMC01 Pin11 short Replace the IC...

Страница 19: ...and PMC01 Pin9 short Does the CFG signal come into the IC501 Pin40 Aren t the foil patterns and Components between IC501 Pin25 and PMC01 Pin9 short 2 SERVO CIRCUIT 3 When the Capstan Motor doesn t ru...

Страница 20: ...CUIT 4 KEY doesn t working KEY doesn t working Is 5V applied to the IC501 Pin15 Does LED or FLD change when a function button is pressed Refer to SMPS 5 3VA Trouble Shooting Replace the defective swit...

Страница 21: ...5 3V Line Check X301 inpulse Check pulse input at Q501 base Check Circuit L506 R517 C519 C518 R518 Does pulse appear at IC501 Pins50 51 YES YES YES Replace IC501 YES NO 5 F OSD Screen abnormal F OSD...

Страница 22: ...Video Signal appear at Q801 Emitter Check Power circuit Is I2 C BUS applied at IC301 Pins62 63 Replace IC301 Check path from IC301 Pin52 to IC501 Pin43 Check Power Circuit Does 12V power flow at C822...

Страница 23: ...at IC301 Pin90 Is V H SW normal at IC301 Pin81 Clean Head Check System Is I2 C BUS supplied at IC301 Pins62 63 NO NO Check 5V Power part NO NO YES YES Does the Luminance signal appear at the IC301 Pi...

Страница 24: ...YES YES YES Does Video Signal appear at IC301 Pins58 60 YES Does Color Signal appear at IC301 Pins55 54 YES Check EE MODE Is IC301 supplied at Pin90 NO NO NO Check 5V power part NO NO Check 5V power p...

Страница 25: ...60 Is I2 C BUS applied at IC301 Pins62 63 Does 3 58MHz appear at IC301 Pin73 Is I2 C BUS applied at IC301 Pins62 63 Is V H SW supplied at IC301 Pin81 Is 5V power supplieda at IC301 Pins12 36 61 67 90...

Страница 26: ...IC801 Pins34 40 IC802 Pin4 Check the IIC Clock and DATA at IC801 Pins42 43 IC802 Pins32 33 YES Check the Audio of IC801 Pins16 17 YES Check the Audio of IC802 Pins22 26 YES Check the JK801 Check the...

Страница 27: ...01 Pin16 L CH 17 R CH YES Do Audio Signals appear at IC802 Pin10 L CH 16 R CH YES YES YES YES Do Audio Signals appear at IC802 Pins22 26 Do Audio Signals appear at JK801 Check Power NO Check IC501 Pin...

Страница 28: ...ES Do Audio signals appear at IC801 Pins16 17 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...

Страница 29: ...in IC301 Pin96 YES YES Check the line of 5 1V Line Power Circuit NO Is Sound Signal appeared in IC301 Pin9 YES Check NO Is Sound Signal appeared in IC301 Pin11 YES Check IC801 Pin22 YES Replace IC301...

Страница 30: ...5 1V Power Part NO Do CLOCK DATA Signal appear at IC301 Pins62 63 YES Check CLOCK DATA of COM NO Does Sound Signal appear at IC301 Pin11 YES YES Check IC801 Pin22 Circuit YES Does Sound signal appear...

Страница 31: ...Check connection of tuner and input jack NO Is High Signal at Q303 304 Base Replace IC301 YES Is 5 1V supplied at FL301 Pin2 Does Erase Signal appear at P3D02 Pin5 YES Do pulse wave and sound signal a...

Страница 32: ...s the Video signal at the IC802 Pin30 YES NO Check the signal flow from IC802 Pin30 to JK801 Vide oout YES Check 33V line NO Check 5V line NO YES Does the Clock signal appear at TU701 Pin11 Check the...

Страница 33: ...Pins2 3 YES Check the Audio of IC801 Pins16 17 YES Check the Audio of IC802 Pins22 26 YES Check the Signal flow from IC802 Pins22 26 JK801 Audio out L R YES Check the Tuner SIF of TU701 Pin23 NO Repla...

Страница 34: ......

Страница 35: ...Are IC503 Pins193 80 and 81 normal Does no DISC appear Does Hello appear at FLD Is PVD02 connected normally Is PVD01 Pin1 normal The waveform on AD 00 21 of IC501 normal Are IC301 Pins5 26 normal Repl...

Страница 36: ...S If OK YES If OK YES If OK Check MPEG_CLK Signal of MPEG part Refer to Audio part Refer to MPEG part Replace B D Check Front Reconnect it Refer to SERVO part Check the connection of MD AUDIO ABNORMAL...

Страница 37: ...disc If OK YES If OK YES If OK Refer to Servo part Check MPEG_CLK Signal of MPEG part Check DSP Check MPEG YES If OK Replace B D PICTURE ABNORMAL F Disc Error Check Disc YES If OK YES If OK Refer to...

Страница 38: ...ng picture of the video CD play on the screen normally Does the audio sound output normally END Check power clock Check CD DVD DSP output signal Check MPEG Decoder input signal Check CD DVD DSP output...

Страница 39: ...Does TTL pulse output to IC201 Pin156 Does 33 8688MHz clock input to IC201 Pin59 Is IC201 Pins79 80 84 88 voltage about 2 2V Replace IC201 IC206 soldering or IC defect Check power circuit Check 2 COM...

Страница 40: ...move up and down Check Focus Driver output IC201 Pin88 IC2M1 Pins37 38 Check SLED Driver output IC201 Pin80 IC2M1 Pins28 29 IC201 Pin80 no output IC201 is defective IC2M1 Pins26 27 no output IC2M1 is...

Страница 41: ...ppear OPEN CLOSE Replace COM or IC201 Replace IC201 Check IC2A1 Pins47 50 51 52 in DVD Mode Fig 3 FOCUS ERROR waveform IC201 no output Pick up is defective Check IC201 and IC2M1 when PMD03 Pin6 is abn...

Страница 42: ...attern RF 1 5 1 6V TP2A0 Fig 5 RF waveform Check IC2A1 Pin3 No signal Pick up is defective Replace IC201 Check IC201 Pin84 No signal at IC201 IC201 is defective Check IC201 Pin165 Check the clock at t...

Страница 43: ..._CS EE_CLK EE _OUT F_IN I C3F1 FLA SH ROM FLASH_CS RD PWEO LA 0 LA 1 LA 2 LA 3 LADD 04 19 MD 00 31 MCLK2 CKE MA 00 10 MA12 13 CS0 RAS CAS WE DQM0 3 REQP SDCLKI PSYNC DVD 1 7 DSP_ INT SENSE DSP_ CS 5 3...

Страница 44: ...SBADD SENS FOK SLD_FG MSDATO DEFECT DSP_SENSE SQSO SQCK SCOR XLAT S_CLK S_DATA DSP_CS WR RD DO 0 7 AO 0 5 DVD_DATA 0 7 MCK UCOM I F MPEG I F UCOM I F M D DVD CD RF MIRR TZC ICADDR 0 8 ICDATA 00 15 MO...

Страница 45: ...Y Pb B Y G Pr R C L 3 2 5 6 7 8 9 12 5 7 8 9 10 11 12 R SW 601 VIDEO S W VCR PDM02 DVD A L DVD A R DVD B DVD G DVD R IC404 CS8405A 12 288MHZ X tal IC403 CS5331A IC406 KA5532 JK602 OPTICAL IN Audio R...

Страница 46: ...K SDATA SQCK SQS0 REQP SDCLK1 PSYNC DSP_ INT SENSE DSP_ CS AD 04 21 RF MOTOR I F MI RR LDON SCLK SD ATA EE_CS F_IN 32 MD 00 31 MCLK2 CKE MA 00 10 MA 12 13 CS0 RAS CAS WE DQM 0 3 SPINDLE_ FG ALE AD 04...

Страница 47: ...Reset Waveform Check IC101 Reset Waveform Check 3 3V line Check Power dection Circuit NO Check Connector PN103 if is normally Check power part of Main B D Check oscillator of X101 Check if CN901 Pin7...

Страница 48: ...3 91 WAVEFORMS OF MAJOR CHECK POINT 1 R311 FRONT L 2 R303 FRONT R 3 R309 SURROUND L 4 R309 SURROUND R 5 R307 CENTER 6 R305 WOOFER...

Страница 49: ...3 92 INTERNAL BLOCK DIAGRAM OF ICs CS8415A...

Страница 50: ......

Страница 51: ...C130 ZD121 R127 RECTIFIER SMOOTHING BLOCK D126 C140 L122 C141 RECTIFIER SMOOTHING BLOCK D125 R129 C138 FEED BACK BLOCK R122 R121 C136 R123 R124 R125 R126 3 3V REG BLOCK IC151 C171 12V REG BLOCK IC153...

Страница 52: ...i 5 2VA TO AVCP REG 5V FROM COM PWR CTL H PMS01 5 3VA 8V GND REG 12VT 3 3V 3 3V 5V 5V GND 2 5V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 PMD03 33VT BLOCK Q163 R168 R169 R170 12VT BLOCK IC164 C162 R171 8V BLO...

Страница 53: ...CSS A2 BLOCK DIAGRAM 731 109 IC751 KOR MSP3407 USA MSP3425 ACSS OPTION SDA 91 SCL 33V MOD V IN MOD A IN MOD CH CTL VCR H 90 108 872 871 92 17 CH SW VCR TV CH S W 371 ACSS VIDEO 151 5 3VA 353 2 fsc 65...

Страница 54: ...U701 81 11 9 DET NORMAL AUDIO OUT REC AUD OUT R P HEAD LINE AUDIO R IN FROM REAR JACK FROM REAR JACK LINE AUDIO L IN OUT R OUT L COMP IN A OUT L VCA OUTPUT SELECTOR 22 21 3 1 17 43 1 31 7 6 16 17 A OU...

Страница 55: ...m NL De eMPH VCA C K LPF BD BPF CCD LPF APC ACC DET L DET Main Conv2 Main Conv1 REC MODE 1 51 52 42 39 44 46 35 31 30 28 29 21 26 24 23 18 19 50 22 20 14 13 15 LINE 2 VIDEO IN LINE 1 VIDEO IN TV VIDEO...

Страница 56: ...1 2 3 4 5 6 7 10 11 21 22 36 35 16 A OUT L A OUT R 17 AUDIO INPUT BLOCK VIDEO INPUT BLOCK AUDIO INPUT BLOCK OSD V IN TU V IN DVD R V IN DVD A IN L DVD A IN R TU A IN L TU A IN R NORMAL AUDIO OUT To A...

Страница 57: ...T UP SENSOR 1 M LD IN 10 L D MOTOR 20 LD LD 19 1 2 3 4 5 31 32 38 40 61 78 80 81 12 24 28 39 27 DRUM PWM 1 2 RESET GND Vcc 3 IC504 3 SUP SENSOR SUP END 82 15 R C PM601 Pin5 R C Out Vcc A D 95 83 88 7...

Страница 58: ...tive No power BD101 TH101 are defective IMPORTANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS UNDER NO CIR CUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE ZENITH...

Страница 59: ...3 38 3 39 2 POWER SMPS CIRCUIT DIAGRAM 2...

Страница 60: ...3 40 3 41 3 TU IF ACSS A2 CIRCUIT DIAGRAM EE MODE VIDEO TU MODE AUDIO...

Страница 61: ...ctive Q302 Q303 Q304 are defective No mono Audio Signal in PB Mode FL301 Q301 Q306 are defective No mono Audio Signal is not recorded Q305 are defective EE PB screen doesn t appear No Color in REC PB...

Страница 62: ...3 44 3 45 5 Hi Fi CIRCUIT DIAGRAM PB REC 44 Pin is defective Hi Fi Audio is not appear IC801 Pins42 43 aredefective All Audio is not appear...

Страница 63: ...ll not operate ES501 ES502 LD501 are defective Auto Rew will not working RS501 RS502 Q514 Q515 are defective Auto stop occures R575 R576 R577 R578 are defective Deck will not operate IC504 is defectiv...

Страница 64: ...01 Pin 40 REC PB CFG Tek Stop 5 00KS s 15 Acqs M10 0ms Ch1 Ch1 3 04 V 1 00 V T T 1 IC501 Pin 39 REC PB DPG Tek Stop 250KS s 4 Acqs M 200 s Ch2 Ch1 1 58 V 1 00 V T T 1 IC501 Pin 54 REC PB C SYNC Tek St...

Страница 65: ...42 43 44 1 2 3 4 5 6 7 0 06 5 11 5 1 5 1 5 0 2 3 2 2 0 0 0 0 5 1 4 6 4 3 0 0 0 0 0 5 0 0 5 0 0 0 0 5 0 5 0 4 0 2 8 2 8 0 5 4 2 0 2 8 0 0 0 2 7 2 8 2 6 2 8 0 3 8 3 8 3 8 3 8 3 8 3 8 3 8 0 11 5 06 5 1...

Страница 66: ...3 52 3 53 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE...

Страница 67: ...3 54 3 55 2 KEY RIGHT P C BOARD LOCATION GUIDE 3 KEY LEFT P C BOARD LOCATION GUIDE...

Страница 68: ......

Страница 69: ...3 68 3 69 5 6 5 TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM IC204 is defective Scratched CD Audio abnormal CIRCUIT DIAGRAMS 1 DVD DSP CIRCUIT DIAGRAM...

Страница 70: ...3 70 3 71 2 DRIVE RF CIRCUIT DIAGRAM 4 1 1 6 2 3 TRACKING LOOP FOCUS LOOP SLED LOOP SPINDLE LOOP WAVEFORM IC2A2 is defective No fucus tracking control Q2A1 Q2A2 are defective CD DVD LD will not be on...

Страница 71: ...3 72 3 73 3 MPEG CIRCUIT DIAGRAM Optical Coaxial out CVBS Y Pb Pr Componet Y C S VHS WAVEFORM...

Страница 72: ...3 74 3 75 4 AUDIO DM CIRCUIT DIAGRAM IC402 is defective 2CH Audio out bad IC401 is defective 2CH Audio out bad 2CH R SIGNAL 2CH L SIGNAL...

Страница 73: ...rogram download fail Tray not open close Digitron all not display system not working Tray not open close Digitron all not display system not working Digitron all not display system not working Digitro...

Страница 74: ...3 78 3 79 6 JACK CIRCUIT DIAGRAM...

Страница 75: ...O IC501 Pin 114 Component Y VIDEO ENCODER IC501 Pin 118 Composite IC501 Pin 112 Chrominance Super video out Mode Tek Stop 2 50MS s 4 Acqs M20 0 s 2 Apr 1999 14 47 27 Glitch Ch1 Ch3 500mV T T 3 IC501 P...

Страница 76: ...0 0 0 44 0 47 0 0 79 0 36 0 56 62 0 0 0 0 3 12 3 11 0 2 26 0 37 0 62 63 3 13 0 0 0 0 45 0 35 0 0 74 5 03 5 02 64 0 0 0 0 0 0 0 0 78 0 0 65 0 0 0 0 0 0 0 0 66 3 12 0 0 0 0 0 0 0 67 0 0 0 0 0 0 31 3 11...

Страница 77: ...23 37 21 61 25 01 3 19 3 19 38 23 65 23 06 2 93 3 92 39 23 65 23 09 0 0 40 23 57 23 08 0 0 41 25 6 23 07 1 3 1 31 42 25 6 25 03 1 48 1 47 43 25 6 25 03 1 57 0 44 25 6 23 07 1 58 1 58 45 27 6 25 07 0 0...

Страница 78: ...3 86 3 87 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW LOCATION GUIDE...

Страница 79: ...3 88 3 89 2 MAIN P C BOARD BOTTOM VIEW LOCATION GUIDE...

Страница 80: ......

Страница 81: ...1 62 1 67 0 1 96 1 29 2 47 0 3 23 2 45 2 45 0 8 0 35 1 37 1 62 1 58 1 61 1 37 1 58 1 62 1 61 2 23 0 4 9 2 23 1 62 0 07 3 26 2 44 2 44 4 92 0 2 22 3 25 1 62 0 3 93 0 0 0 1 59 1 63 0 2 3 26 NC 1 68 0 3...

Страница 82: ...Dolby digital Dolby prologic DTS DECODER SAT 505 FRONT R SURROUND R FRONT L SURROUND L CENTER WOOFER DS9702B IC730 SAT 505 IC750 SAT 505 IC770 SAT 505 IC101 LC875700B MAIN MICOM IC205 CS 5331A IC104 R...

Страница 83: ...3 97 3 98 CIRCUIT DIAGRAMS 1 AMP CIRCUIT DIAGRAMS...

Страница 84: ...2 DSP DIGITAL AUDIO PROCESSING CIRCUIT DIAGRAMS 3 99 3 100...

Страница 85: ...3 101 3 102 3 COM CIRCUIT DIAGRAMS...

Страница 86: ...PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD SOLDER SIDE LOCATION GUIDE 3 103 3 104...

Страница 87: ...3 105 3 106 2 MAIN P C BOARD LOCATION GUIDE...

Страница 88: ......

Страница 89: ...4 14 3 Checking Torque 4 14 4 Guide Roller Height Adjustment 4 15 4 1 Preliminary Adjustment 4 15 4 2 Precise Adjustment 4 15 5 Audio Control A C Head Adjustment 4 16 5 1 Preliminary Adjustment 4 16 5...

Страница 90: ...Base Assembly P4 Chassis Embossing A 5 T 17 Opener Lid Chassis Embossing A 5 T 17 18 Arm Assembly Pinch Shaft A 5 T 17 19 Lever T Up Arm T Up 1 Hook A 5 T 17 18 20 Belt Capstan Motor Capstan 3 Screw...

Страница 91: ...the Drum assembly 3 Unhook H1 H2 and separate the Holder FPC and Cap FPC 1 1 Drum Motor 1 Remove two Screws S2 and disassemble the Stator of the Drum Motor 2 Remove two Screws S3 and separate the Rot...

Страница 92: ...Top Arm Assembly F L Spring Lever S W Gear Assembly Rack F L Chassis Opener Door Brackert Assembly L D Motor Holder Assembly CST B C D E H6 A B Lever Assembly S W H8 Fig A 2 Fig A 2 1 Fig A 2 2 Fig A...

Страница 93: ...3 5 Bracket assembly L D Motor Fig A 2 4 1 Unplug the Connector C1 2 Unhook three Hooks H3 H4 H5 on bottom side of the Chassis lift up the Bracket assembly L M and disassem ble the Bracket assembly L...

Страница 94: ...direction and lift it up 10 Head F E Fig A 3 2 1 Breakaway the A portion of the Head F E from the Embossing of the Chassis turn it to counterclockwise direction and lift it up 11 Base assembly A C He...

Страница 95: ...bly RS Fig A 4 2 1 Unhook the Spring RS from the Hook H10 of the Chassis 2 Lift the Brake assembly T up 14 Arm assembly Tension Fig A 4 3 1 Unhook the Spring Tension from the Hook H11 of the Arm assem...

Страница 96: ...kaway the B portion of the Opener Lid from the Embossing of the Chassis 2 Turn the Opener Lid to clockwise direction and lift it up 18 Arm assembly Pinch Fig A 5 3 1 Lift the Arm assembly Pinch up 19...

Страница 97: ...pstan 2 Remove the three Screws S5 on bottom Chassis and lift the Motor Capstan up 21 Lever F R Fig A 6 3 1 Unlock the Locking Tab L1 as Fig A 6 3 and lift the Lever F R up 22 Clutch assembly D35 Fig...

Страница 98: ...e Gear Cam Hole B in a straight line after the Gear Drive Hole C is aligned with the Chassis Hole as Fig 25 Gear Sector Fig A 7 3 1 Unhook the Hook H15 of the Base Loading on bottom Chassis and lift t...

Страница 99: ...e two Holes of the Gear assem bly P2 and P3 in a straight line after confirmation whether the Gear Sector Hole A and the Plate Slider Hole B are aligned or not as Fig 30 Base assembly P2 Fig A 8 3 Bas...

Страница 100: ...on Fig A 9 2 1 Breakaway the A portion of the Base Tension from the Embossing of the Chassis 2 Turn the Base Tension to counterclockwise direction and lift it up 33 Arm assembly Idler Jog Fig A 9 3 1...

Страница 101: ...00 D006 4 Torque gauge adaptor Parts No D09 R001 5 Post height adjusting driver Parts No DTL 0005 6 Type driver 5 2 Alignment tape Parts No NTSC DTN 001 PAL DTN 0002 3 Torque gauge 3 600g Cm ATG 3 Par...

Страница 102: ...is as below Fig C 2 4 Remove the Screw which fixes the Deck Mechanism and Main Frame and confirm if the Gear Cam is aligned with the Gear Drive as below Fig C 1 A 5 Confirm if the Mode S W on the Main...

Страница 103: ...ptor with the Torque Gauge affixed The Torque reading to measure occurs when the Tape abruptly changes direction from Fast Forward of Rewind Mode when quick bracking is applied to both Reels SRK VIDEO...

Страница 104: ...elope CH 2 NTSC SW 30Hz PAL SW 25Hz Head Switching Output Point RF Envelope Output Point Test Conditions VCR VCP State Play an Alignment Tape Adjustment Point Guide Roller Height Adjustment Screws Fig...

Страница 105: ...crew Fig C 5 3 A C Head Tape Tape 0 2 0 25mm P4 5 1 Preliminary Adjustment Height and Tilt Adjustment Perform the Preliminary Adjustment when there is no Audio Output Signal with the Alignment Tape 1...

Страница 106: ...y adjust the Azimuth Adjustment Screw A and the Tilt Adjustment Screw C for Maximum Output of the 1Khz and 7Khz segments while maintaining the flattest Envelope differential between the two Frequencie...

Страница 107: ...anism Condition Play the blank tape Play an alignment tape Adjustment Points Guide Roller Precise Adjustment Switching Point Tracking Preset X Value Checking Adjustment Procedure Play a blank tape and...

Страница 108: ...pinch roller If locations marked with o do not operate normally after cleaning check for wear and replace See the EXPLODED VIEWS at the end of this manual as well as the above illustrations See the Gr...

Страница 109: ...l Alcohol Touch the cleaning patch to the head tip and gently turn the head rotating cylinder right and left Do not move the cleaning patch vertically Make sure that only the buckskin on the cleaning...

Страница 110: ...Loading Path Inside Top side 2 Base Tension Boss inside Hole 3 Arm Assembly F L U Groove 4 Arm Take up Rubbing Section 5 L D Motor Gear Wheel Part 6 Shaft 7 Arm Assembly F L of Buming Inside Hole 8 R...

Страница 111: ...4 22 GEAR F R GEAR AY P2 P3 Lever F R Base Tension Boss CAM...

Страница 112: ...sensor Check syscon circuit NO YES YES YES NO 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...

Страница 113: ...age 4 14 Check spring Pinch Replace Drum Motor Check Servo Syscon Check the Syscon COM No cassette loading Insert the cassette Check Holder Assembly CST Is there variation for CST IN S W Output In Tap...

Страница 114: ...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...

Страница 115: ...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...

Страница 116: ...Assembly F L Check the power of L D Motor Is the Holder Assembly Cassette assembled correctly Replace the Rear Rack F L Does the Gear Rack F L work Does the Opener Door work Does the Arm Assembly F L...

Страница 117: ...4 28 EXPLODED VIEWS 117 103 105 117 100 106 107 A21 114 113 112 110 115 A24 116 102 A23 032 A22 109 054 054A 1 Front Loading Mechanism Section...

Страница 118: ...9 401 402 001 008 011 031 079 017 032 024 406 020 021 028 019 018 029 030 026 A03 A04 A01 002 002A 025 027 022 003 004 006 007 010 405 014 015 009 409 013 023 016 405 012 402 OPTIONAL PART 2 Moving Me...

Страница 119: ...EXPLODED VIEWS 4 30 051 052 517 061 056 058 518 052A 055 060 410 070 069 076 032 077 068 064 066 065 067 A11 078 A12 3 Moving Mechanism Section 2...

Страница 120: ...MEMO...

Страница 121: ...DING 014 4470R 0055A GEAR PULLEY 015 6871R 4415A PWB PCB ASSY TOTAL LOADING DP4 016 4470R 0050A GEAR ASSY FEED 017 4470R 0056A GEAR LOADING 018 4974R 0023A GUIDE UP DOWN 020 3040R M001A BASE MAIN MOLD...

Страница 122: ...CH LOADING RF 370CA 12560 MABUCHI 027 4470R 0093A GEAR WHEEL NSP 028 4408R 0004A REEL T 029 4261R 0019B ARM ASSEMBLY PINCH 029 4261R 0019A ARM ASSY PINCH 030 4510R 0043A LEVER T UP 031 4970R 0123A SPR...

Страница 123: ...50D PWB PCB ASSEMBLY TOTAL WOOFER N AMERICA 50 100 A48 3501R 3860B BOARD ASSEMBLY DT S587M SMPS 50W 80W A48A 6871R 3860B PWB PCB ASSEMBLY TOTAL DT 587M SMPS A49 6871R 2650B PWB PCB ASSEMBLY TOTAL DT 5...

Страница 124: ...G FE 5100 COMBI TOP 0 02 0 EPS 803B 3920RME047B PACKING CASING FE 5100 COMBI MID 0 02 0 EPS 803C 3920RME047C PACKING CASING FE 5100 COMBI BOTTOM 0 02 0 E 804 292 053A BAG SOFT VCP NSP 804 3858R S001A...

Страница 125: ...ELECTROLYTIC 2200UF LXV DOWN 50V 20 FL BUL C135 0CE228ZK610 CAPACITOR FIXED ELECTROLYTIC 2200UF LXV DOWN 50V 20 FL BUL C136 0CE1054K638 CAPACITOR ELECTROLYTIC 1 0M SRA SS50V M FM5 TP 5 C137 624 085D...

Страница 126: ...FIXED METAL OXIDE FIL 180K OHM 2 W 5 TR R110 0RS1803K619 RESISTOR FIXED METAL OXIDE FIL 180K OHM 2 W 5 TR R111 0RD0102F608 RESISTOR FIXED CARBON FILM 10 OHM 1 6 W 5 TA26 R114 0RS1803K619 RESISTOR FIX...

Страница 127: ...ROLYTIC 10M SRA 16V M FM5 TP 5 C313 0CQ1032K409 CAPACITOR POLYESTER MYLAR 0 01UF S 50V J PE TP C314 0CQ3332K409 CAPACITOR FIXED FILM 0 033UF S 50V J PE TP C315 0CE4764F638 CAPACITOR ELECTROLYTIC 47M S...

Страница 128: ...P 5 C399 0CQ1821N409 CAPACITOR POLYESTER MYLAR 0 0018U 100V J POLY TP C500 0CE477CD638 CAPACITOR AL ELECTROLYTIC 470UF SHL SD 10V M FM5 TP 5 C500 0CE4775C618 CAPACITOR AL ELECTROLYTIC 470UF SR SV 6 3V...

Страница 129: ...UBULAR T C 56P 50V J SL TA26 C714 0CX5600K408 CAPACITOR TUBULAR T C 56P 50V J SL TA26 C715 0CC0500K015 CAPACITOR CERAMIC TEMP COMP 5P 50V C NP0 TR C716 0CC1000K015 CAPACITOR CERAMIC TEMP COMP 10P 50V...

Страница 130: ...TOR ELECTROLYTIC 22M SRA 16V M FM5 TP 5 C860 0CN1040K948 CAPACITOR FIXED TUBULAR High d 0 1UF D 50V 80 20 F Y5V TA C861 0CE1064F638 CAPACITOR ELECTROLYTIC 10M SRA 16V M FM5 TP 5 C863 0CE4764F638 CAPAC...

Страница 131: ...OLDER ASSY LED MS501 6600JB8005B SWITCH MODE NON 5V 1MA VERTICAL G MS501 6600JB8005C SWITCH MODE MMS00721ZMB0 MIC 5VDC 1MA D 35 PMS01 561 7150 CONNECTOR CIRC WAFER GIL G 15P S3T2 E LG CABLE 15P Q163 0...

Страница 132: ...1203 KEC Q801 0TR126709AC TRANSISTOR KTA1267 GR MINI TP KEC Q802 0TR319809AC TRANSISTOR KTC3198 TP BL KTC1815 KEC Q802 0TR534309BA TRANSISTOR 2SC5343 L TP AUK TO92 Q802 0TR319909AF TRANSISTOR BIPOLARS...

Страница 133: ...FIXED CARBON FILM 1 8K OHM 1 6 W 5 TA26 R501 0RD1000F608 RESISTOR FIXED CARBON FILM 100 OHM 1 6 W 5 TA26 R502 0RD1000F608 RESISTOR FIXED CARBON FILM 100 OHM 1 6 W 5 TA26 R503 0RD1000F608 RESISTOR FIX...

Страница 134: ...CARBON FILM 27K OHM 1 6 W 5 TA26 R566 0RD4701F608 RESISTOR FIXED CARBON FILM 4 7K OHM 1 6 W 5 TA26 R567 0RD8200F608 RESISTOR FIXED CARBON FILM 820 OHM 1 6 W 5 TA26 R568 0RD6803F608 RESISTOR FIXED CAR...

Страница 135: ...2F608 RESISTOR FIXED CARBON FILM 18K OHM 1 6 W 5 TA26 R810 0RD1000F608 RESISTOR FIXED CARBON FILM 100 OHM 1 6 W 5 TA26 R811 0RD1000F608 RESISTOR FIXED CARBON FILM 100 OHM 1 6 W 5 TA26 R812 0RD1001F608...

Страница 136: ...A26 R602 0RD1001F608 RESISTOR FIXED CARBON FILM 1K OHM 1 6 W 5 TA26 R603 0RD1001F608 RESISTOR FIXED CARBON FILM 1K OHM 1 6 W 5 TA26 R604 0RD6802F608 RESISTOR FIXED CARBON FILM 68K OHM 1 6 W 5 TA26 R60...

Страница 137: ...SW635 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW636 556 219B SWITCH TACT THVV502GAA POSTECH DC 12 V 5 SW636 556 282C SWITCH TACT SKQNQED ALPS DC 12 V 50 MA TA SW637 556 219B SWITCH TACT TH...

Страница 138: ...IC M L HD 0 1UF 50V Z Y5V F 1508 R TP C287 0CE1064F638 CAPACITOR ELECTROLYTIC 10M SRA 16V M FM5 TP 5 C288 0CE1064F638 CAPACITOR ELECTROLYTIC 10M SRA 16V M FM5 TP 5 C290 0CH4180K412 CAPACITOR CHIP CERA...

Страница 139: ...5F944 CAPACITOR FIXED CERAMIC Temp c 2 2UF 16V 80 20 Y5V F 3216 C303 0CH1104K942 CAPACITOR CHIP CERAMIC M L HD 0 1UF 50V Z Y5V F 1508 R TP C304 0CH1104K942 CAPACITOR CHIP CERAMIC M L HD 0 1UF 50V Z Y5...

Страница 140: ...64F638 CAPACITOR ELECTROLYTIC 47M SRA SS 16V M FM5 TP 5 C503 0CH1104F942 CAPACITOR FIXED CERAMIC Temp c 0 1UF 16V 80 20 Y5V F 1608 C504 0CE1064F638 CAPACITOR ELECTROLYTIC 10M SRA 16V M FM5 TP 5 C506 0...

Страница 141: ...202009CA DIODE SWITCHING DAN202K TP ROHM KOREA SOT23 80 D603 0DS202009CA DIODE SWITCHING DAN202K TP ROHM KOREA SOT23 80 D604 0DS202009CA DIODE SWITCHING DAN202K TP ROHM KOREA SOT23 80 F602 6200HJC901A...

Страница 142: ...5 00 D R234 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R235 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R236 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM...

Страница 143: ...M 1 16 W 1608 5 00 D R2F3 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R2F4 0RH1000C622 RESISTOR METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R2F5 0RH2202C622 RESISTOR METAL GLAZE...

Страница 144: ...0 OHM 1 16 W 1608 5 00 D R327 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R364 0RH0000C622 RESISTOR METAL GLAZED CHIP 0 OHM 1 16 W 1608 5 00 D R365 0RH0000C622 RESISTOR METAL GL...

Страница 145: ...W 1608 5 00 D R462 0RH5601C622 RESISTOR METAL GLAZED CHIP 5 6K OHM 1 16 W 1608 5 00 D R463 0RH5601C622 RESISTOR METAL GLAZED CHIP 5 6K OHM 1 16 W 1608 5 00 D R464 0RH8201C622 RESISTOR METAL GLAZED CH...

Страница 146: ...ER N AMERICA 50 100 C101 0CH1104K942 CAPACITOR CHIP CERAMIC M L HD 0 1UF 50V Z Y5V F 1508 R TP C102 0CE1064F638 CAPACITOR ELECTROLYTIC 10M SRA 16V M FM5 TP 5 C103 0CH4330K412 CAPACITOR CHIP CERAMIC M...

Страница 147: ...UF 50V 10 B 5YP 1608 R TP C306 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C307 0CH1104K512 CAPACITOR FIXED CERAMIC Temp c 0 1UF 50V 10 B 5YP 1608 R TP C308 0CH1102K562 CAP...

Страница 148: ...X R TP C751 0CH1104K566 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 2012 50V 10 X7R X R TP C752 0CH1104K566 CAPACITOR FIXED CERAMIC TEMP C 0 1UF 2012 50V 10 X7R X R TP C753 0CH1104K566 CAPACITOR FIXED CERAMI...

Страница 149: ...WITCHING 1SS133 DETECT SW TP D118 0DD133009AA DIODE SWITCHING 1SS133 DETECT SW TP D201 0DR104009AB DIODE RECTIFIER RL104 R TP GULF SEMICONDUCTOR IC101 0IMCRSA029A IC MICRO CONTROLLER LC875747B 50T7 SA...

Страница 150: ...AZED CHIP 100 OHM 1 16 W 1608 5 00 D R124 0RH3301C622 RESISTOR METAL GLAZED CHIP 3 3K OHM 1 16 W 1608 5 00 D R125 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R126 0RH0102C622 RES...

Страница 151: ...P 10K OHM 1 16 W 1608 5 00 D R212 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R213 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R214 0RH1002C622 RESISTOR MET...

Страница 152: ...R METAL GLAZED CHIP 100 OHM 1 16 W 1608 5 00 D R318 0RH0000C622 RESISTOR METAL GLAZED CHIP 0 OHM 1 16 W 1608 5 00 D R319 0RH0000C622 RESISTOR METAL GLAZED CHIP 0 OHM 1 16 W 1608 5 00 D R321 0RH1000C62...

Страница 153: ...754 0RH1002C622 RESISTOR METAL GLAZED CHIP 10K OHM 1 16 W 1608 5 00 D R765 0RD0472F608 RESISTOR FIXED CARBON FILM 47 OHM 1 6 W 5 TA26 R766 0RD0472F608 RESISTOR FIXED CARBON FILM 47 OHM 1 6 W 5 TA26 R7...

Страница 154: ...08P60EHC1390J EAW WOOFER 8 OHM 851A 6400DBHX01A SPEAKER TWEETER SN11AP06D BALHAE TWEETER DOME 852 3720RMF023A PANEL FRONT FRONT FE 5600TE STANDARD 853 3110RM0008A CASE REAR FE 5600TE STANDARD 854 687...

Страница 155: ...M0004B DUCT MOLD FRONT DTEG 550WE STANDARD 955 6400WETN01A SPEAKER WOOFER 18P90EHC1391 EAW WOOFER 4 OHM 956 3701RM0021A NET ASSEMBLY NET ASSY FE 5620WE 957 6871RU3091C PWB PCB ASSEMBLY SUBSET AUDIO FE...

Страница 156: ......

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