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58

< CD SECTION >

8. Tracking Balance Adjustment

Oscilloscope

(DC range)

+

–

TP2 (TB)

TP3 (VREF)

1) Connect an oscilloscope to the test points TP2 (TB) and

TP3 (VREF).

2) Turn on the power switch.
3) Insert test disc TCD-782 (YEDS-18) and press the CD

PLAY button.

4) Adjust SFR501 so that the waveform on the oscilloscope

is vertically symmetrical as shown in the figure below.

5) After the adjustment is completed, remove the connected

lead wires from the terminals.

0V

B

A

A = B

VOLT/DIV: 0.2V
TIME/DIV: 1mS

< DECK SECTION >

9. Tape Speed Adjustment

Settings:

•

Test tape: TTA-100

•

Test point: CN201

•

Adjustment location: SFR1

Method:

Playback the test tape by adjust SFR1 so that
the frequency counter reads 3000Hz±10Hz.
Check that the counter reading in the REV
mode is within the range of ±45Hz of that in
the FWD mode.

10. Azimuth Adjustment

Settings:

•

Test tape: TTA-300

•

Test point: J201 (PHONES)

•

Adjustment location: Head azimuth

adjustment screw

Method:

Playback the 10kHz signal of the test tape and
adjust the adjustment screw so that the output
becomes the -0.5dB point below the maximum
reading.  The adjustment must ends with the
clockwise rotation of the adjustment screw.
Perform this adjustment in both FWD and
REV directions.  Fix the adjustment screw with
adhesive agent upon completion of adjustment.

< TUNER SECTION >

< FM SECTION >

IHF Sensitiviy:

More than 20dB

(THD 3%)

(at 88.0/98.0MHz)
More than 22dB
(at 108MHz)

Signal to noise ratio:

More than 55dB
(at 98.0MHz)

Distortion:

Less than 1.5%

(Input: 54dB)

(at 98.0MHz)

Stereo separation:

More than 20dB
(at 98.0MHz)

Intermediate frequency:

10.7MHz

< AM SECTION >

Sensitivity:

54dB±6dB (at 603kHz)

(S/N 20dB)

52dB±6dB
(at 999/1404kHz)

Signal to noise ratio:

More than 36dB

(Input: 74dB)

(at 999kHz)

Distortion:

Less than 2.0%
(at 999kHz)

Intermediate frequency:

450kHz

< DECK SECTION >

Tape speed:

3000Hz±60Hz

Wow & flutter:

Less than 0.21%

(W.R.M.S)
Take-up torque:

30

-

55g-cm (FWD, REV)

F.F torque:

75

-

160g-cm

REW torque:

75

-

160g-cm

Back tension:

3±4g-cm (FWD, REV)

PB Output level:

190mV±1dB (LINE OUT)

REC/PB Output level:

190mV±2dB (LINE OUT)

Distortion (REC/PB):

Less than 3%
(NORM, CrO

2

)

Noise level (PB):

Less than 3.5mV
(DOLBY NR OFF, NORM)

Noise level (REC/PB):

Less than 3.5mV
(DOLBY NR OFF, NORM)

Erasing ratio:

More than 55dB

REC bias frequency:

85kHz

Test tape:

NORMAL TTA-100
CrO

2

TTA-200

PRACTICAL SERVICE FIGURE

Содержание CSD-MD50

Страница 1: ...M 1R7 BASIC MD MECHANISM 7ZG 9B2 BASIC CD MECHANISM 3ZG 3E2 MD CD STEREO RADIO CASSETTE RECORDER CSD MD50 S M Code No 09 994 328 4N2 EZ SERVICE MANUAL D A T A MODEL CODE 86HR8 0117 B 86HR8 1111 W 86HR...

Страница 2: ...CHEMATIC DIAGRAM 5 CD 39 40 WIRING 4 POWER 41 42 SCHEMATIC DIAGRAM 6 FL KEY POWER 43 44 WIRING 5 MD 45 46 SCHEMATIC DIAGRAM 7 MD 47 48 WIRING 6 MECHANISM 49 50 TEST MODE 51 55 ELECTRICAL ADJUSTMENT PR...

Страница 3: ...A80 081 010 AC CORD SET ASSY EZ BLK Design and specifications are subject to change without notice Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation DOLBY...

Страница 4: ...those specified herein may result in hazardous radiation exposure ATTENTION L utilisation de commandes r glages ou proc dures autres que ceux sp cifi s peut entra ner une dangereuse exposition aux rad...

Страница 5: ...de in the optical block Be sure ground body and workbench and use care the clothes do not touch the diode Precaution to replace Optical block KMS 260A 1 After the connection remove solder shown in the...

Страница 6: ...TIONS A B C Disassembling Procedure 1 Remove the seven screws A BVT2 3 18 7 and remove the rear cabinet 2 Remove the two screws B BVT2 3 12 2 Remove the MAIN C B by pulling it upward 3 Remove the four...

Страница 7: ...move the PANEL DISP by pulling it upward 5 Close the deck lid Raise the deck block from the rear 6 Remove the two screws D BVT2 3 12 2 While raising the MAIN C B release the claws starting from 1 to 7...

Страница 8: ...FFC 1 Remove the five screws A BVT2 3 12 5 and remove the deck mechanism 2 Remove the SPR T CASS from the rib and remove the BOX CASS 3 Release the two claws of the COVER and FFC by pressing them in t...

Страница 9: ...them 8 How to remove FL C B 1 Release the two claws 2 and pull the top of the FL C B to the front The FL C B can be removed 9 How to remove the CD panel 1 Move the CAM SLIDE by 1 cm to the left 2 Move...

Страница 10: ...in the direction of the arrow a remove the BOSS by pressing it gently in the direction of the arrow b and remove the 7ZG 3 A2 in the direction of the arrow c Fig 4 Stud Cover chassis Eject status Full...

Страница 11: ...C B 87 A90 505 080 FUSE CLAMP TP00351 51 C100 87 018 205 080 CAP CERA SOL 0 022 C101 87 018 205 080 CAP CERA SOL 0 022 C102 87 018 205 080 CAP CERA SOL 0 022 C103 87 018 205 080 CAP CERA SOL 0 022 C1...

Страница 12: ...286 080 CAP U 0 01 25 C785 87 010 805 080 CAP S 1 16 C786 87 010 805 080 CAP S 1 16 C787 87 012 280 080 CAP U 3300P 50 C788 87 012 280 080 CAP U 3300P 50 C789 87 012 275 080 C CAP U 1200P 50 B C790 8...

Страница 13: ...87 010 196 080 CHIP CAPACITOR 0 1 25 C579 87 012 156 080 C CAP S 220P 50 CH C585 87 018 127 080 CAP CER 470P 50V C588 87 010 196 080 CHIP CAPACITOR 0 1 25 C589 87 010 196 080 CHIP CAPACITOR 0 1 25 CN3...

Страница 14: ...CHIP CAP U 1000P 50B C217 87 012 188 080 C CAP U 47P 50 CH C218 87 012 172 080 CAPACITOR CHIP U 10P CH C219 87 016 296 080 C CAP TN 22 4SV A C220 87 010 662 080 C CAP E 22 6 3 C221 87 010 831 080 C C...

Страница 15: ...D R426 87 022 583 080 C RES U M F 12K D X200 87 A70 105 080 C VIB XTAL 22 5792MHZ SMD 49 X301 87 A70 100 080 C VIB CER 12 0MHZ PBRC BR A LOAD C B FC451 87 ZG9 604 010 FF CABLE 5P 1 25 100MM M450 87 A9...

Страница 16: ...18 17 FL 16 ST 32GNK GRID ASSIGNMENT ANODE CONNECTION...

Страница 17: ...20 19 BLOCK DIAGRAM 1 MAIN...

Страница 18: ...22 21 BLOCK DIAGRAM 2 SYSTEM CONTROL...

Страница 19: ...24 23 BLOCK DIAGRAM 3 MD...

Страница 20: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 26 25 WIRING 1 MAIN...

Страница 21: ...28 27 SCHEMATIC DIAGRAM 1 TUNER...

Страница 22: ...30 29 SCHEMATIC DIAGRAM 2 DECK...

Страница 23: ...32 31 SCHEMATIC DIAGRAM 3 MAIN...

Страница 24: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 34 33 WIRING 2 SYSTEM CONTROL CD...

Страница 25: ...36 35 SCHEMATIC DIAGRAM 4 SYSTEM CONTROL...

Страница 26: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 38 37 WIRING 3 FL KEY...

Страница 27: ...40 39 SCHEMATIC DIAGRAM 5 CD...

Страница 28: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 42 41 WIRING 4 POWER...

Страница 29: ...44 43 SCHEMATIC DIAGRAM 6 FL KEY POWER...

Страница 30: ...46 45 WIRING 5 MD 7 6 5 4 3 2 1 1 2 3 4 5 6 7 A B C D E F G H I J A B C D E F G H I J TO FROM MAIN C B CN203 TO FROM MICOM CD C B CN304 CONDUCTOR SIDE COMPONENT SIDE...

Страница 31: ...48 47 SCHEMATIC DIAGRAM 7 MD...

Страница 32: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 A B C D E F G H I J K 50 49 WIRING 6 MECHANISM TO MICOM CD C B CN500...

Страница 33: ...fter the TEST mode is activated waits about one second then the message MD TEST appears on the display The MD TEST mode can be used Note 1 If a machine shows any abnormal operations during the TEST mo...

Страница 34: ...5 button is pressed while the machine is in the ALL SV OFF status Then the message T SLED RVS appears on the display 2 6 Checking Laser Output 1 Every passing of the TIMER CLOCK button in the ALL SV O...

Страница 35: ...are turned on and all servos start moving When the all servos have no problem the message ALL SV ON appears on the display 2 After the check is completed press the 9 button to show the message ALL SV...

Страница 36: ...IT button is pressed AUTO ADJ is displayed When the adjustment is completed DONE is displayed When the FAILED appears it means that the adjustment has failed 4 When the adjustment is completed press t...

Страница 37: ...n 3 Press the TAPE 1 2 button to display SELECT GRV 4 Press the MD REC button to display REC Analog 5 Press MD 2 button to display FOCUS ON 6 Press the ENTER button to display ALL SV ON 7 When the CD...

Страница 38: ...56 ELECTRICAL ADJUSTMENT 6 2 3 7 MAIN C B CONDUCTOR SIDE TP4 FFE801 L981 VR770 TP5 TP6 IC771 L772 L771 CN201 8 MICOM CD C B CONDUCTOR SIDE CN302 TP2 TP3 IC501 SFR501 IC500 J201...

Страница 39: ...MHz and check that the test point is more than less than 7 3V 0 0 R P E HEAD 9 SFR1 5 FM Tracking Check Settings Test point J201 PHONES Method Set to FM 98 0MHz and check that the test point is less t...

Страница 40: ...int below the maximum reading The adjustment must ends with the clockwise rotation of the adjustment screw Perform this adjustment in both FWD and REV directions Fix the adjustment screw with adhesive...

Страница 41: ...rystal oscillator circuit output pin OSCI inverted output 18 XTSL I Switch input frequency of OSCI pin Connected to DVDD H 512Fs 22 5792MHz L 1024Fs 45 158MHz 19 NC Not used Connected to DVDD 20 DVSS...

Страница 42: ...ck digital PLL master PLL and record EFM PLL 60 FILO O Output filter for playback digital PLL master PLL and record EFM PLL 61 CLTV I Input internal VCO control voltage for playback digital PLL master...

Страница 43: ...VDD Digital power supply 88 FFDR O Focus servo drive PWM output 89 FRDR O Focus servo drive PWM output 90 FS4 O Output 4Fs 176 4kHz Not used 91 SRDR O Sled servo drive PWM output 92 SFDR O Sled servo...

Страница 44: ...g mechanism speed control signal output 22 LOAD O Loading mechanism operating direction control signal output 1 23 EJECT O Loading mechanism operating direction control signal output 2 24 MREQ O Outpu...

Страница 45: ...4 NC Not used 75 DQSY I Synchronize input pin for digital in SUB Q 76 XINT I Status synchronize input pin for CXD2652AR 77 SRDT I Serial data input pin for CXD2652AR interface 78 SWDT O Serial data ou...

Страница 46: ...Latch 19 XSTBY I Standby setting pin H Normal mode L Standby 20 FOCNT I Internal current setting pin 21 VREF O Output reference voltage Not used 22 EQADJ I O EQ central frequency setting pin 23 3TADJ...

Страница 47: ...eturn circuit 44 OPO O Output pin for user operational amplifier Not used 45 OPN I Non inverted input pin for user operational amplifier 46 RFO O RF amplifier output pin Check point for eye pattern 47...

Страница 48: ...ants are connected between the TD and VR pins Tracking phase compensation setting pin Tracking jump signal kick pulse amplitude setting pin Tracking control signal output pin Focusing control signal o...

Страница 49: ...he DSP Digital system GND Output pin to which external focus search smoothing capacitor is connected Tracking Balance Control EF balance variable range setting pin No connection Disc defect detector o...

Страница 50: ...L Track detect signal input pin Schmidt input Tracking error signal input pin Schmidt input Tracking OFF output pin Tracking gain selection output pin Gain boost at L Track jump control signal output...

Страница 51: ...he 7 35 kHz sync signal which is generated by dividing frequency of crystal oscillator Subcode Q output standby output pin Read write control input pin Schmidt input Subcode Q output pin Command input...

Страница 52: ...C output terminal Power supply terminal Not used A D key input A D key input CD door detection Tuner destination selection input Tuner destination selection input JOG 1 detection A output JOG 2 detect...

Страница 53: ...output L to turn on the LED Stand by LED control output L to turn on the LED Not used Relay control output H when operating MUTE operation H when operating LC72121 chip enable output LC72121 serial c...

Страница 54: ...72 IC BLOCK DIAGRAM IC BA5970FP IC BA6417F...

Страница 55: ...73 IC BD7910FV IC BH3862FS...

Страница 56: ...74 IC AK4519VF IC AK93C65AF...

Страница 57: ...75 Rog CURRENT DETECTOR TERMINAL IC BA5936 IC LC75710NE...

Страница 58: ...76 VSSX VSSD VDD VSSA IC TC74HCT7007AF IC LC72121...

Страница 59: ...77 IC MM1454XFBE 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 BIAS VCC RIN PNR B Q DET QF6 ROUT LOUT GND LIN VREF QF1 QF2 QF3 QF4 QF5 QSurround IC LA1837NL...

Страница 60: ...CK3 207 010 COVER SPKR 22 8Z CK3 019 010 KEY REC 23 8Z CK3 018 010 KEY POWER 24 8Z CK3 022 010 LENS POWER 25 8Z CK3 011 010 LENS FUNC 26 8Z CK3 017 010 KEY CONT 27 8Z CK3 204 010 HLDR CD R 28 8Z CK3...

Страница 61: ...D I I I C E C H B C A C C C P C B P C B P C B F 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 16 18 19 21 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 40 P C B FL 38 P C B 42 43 44 45 46 47 49 50 51 52...

Страница 62: ...EW 1 1 1 A A 56 16 15 14 30 13 12 11 10 17 19 4 6 20 5 22 21 23 25 26 29 29 27 28 3 2 RELAY C B HLDR WIRE 3 B B A 18 9 7 A B A B 31 38 39 40 32 34 33 35 43 45 41 41 37 44 52 51 55 50 DECK C B SOL2 49...

Страница 63: ...T PINCH R 29 82 ZM1 240 110 LVR REC 30 82 ZM1 298 010 SPR P EARTH 31 82 ZM1 255 310 SPR E LVR DIR 32 82 ZM1 221 110 GEAR CAM 33 82 ZM1 227 210 LVR TRIG 34 82 ZM1 224 410 LVR FR 35 86 ZM4 201 010 SPR...

Страница 64: ...84 CD MECHANISM EXPLODED VIEW 1 2 B C A B C 3 MOTOR 2 C B 2 4 5 6 7 8 9 10 11 12 1 17 3ZG2 17 CUSH G MAIN A B D D A CUSH G MAIN A A 16 14 15 13 C C...

Страница 65: ...207 010 GEAR TRAY 7 83 ZG3 204 210 GEAR C 8 83 ZG3 205 010 GEAR D 9 83 ZG3 217 010 S SCREW GEAR D 10 83 ZG3 220 210 GEAR PULLEY 2 11 83 ZG3 214 010 BELT L 12 83 ZG3 229 410 TRAY CD 2 13 83 ZG3 210 11...

Страница 66: ...SY SHT 2 83 ZG2 235 010 GEAR A3 3 83 ZG2 205 210 GEAR B 4 83 ZG2 236 010 GEAR MOTOR 3 5 83 ZG2 240 010 SHAFT SLIDE 3 6 87 A90 836 010 PICKUP KSS 213F 8 83 ZG2 233 010 TURN TABLE A5 11 83 ZG2 245 110 L...

Страница 67: ...0 FF CABLE 21P 0 5 90MM 2 87 ZG9 603 010 FF CABLE 8P 1 0 120MM 3 87 ZG9 604 010 FF CABLE 5P 1 25 100MM A 87 ZG9 209 010 S SCREW MD TF B 87 067 020 010 VTT 3 4 C 87 067 421 010 VTT 2 4 HLDR SHLD TOP B...

Страница 68: ...88 MD MECHANISM EXPLODED VIEW 2 3 A 1 7ZG 3 A2 2 3 4 PCB 5 6 7 8 a 9 B C 10 11 12 13 14 15 16 17 18 19 20 21 a D E...

Страница 69: ...S2 10 87 ZG8 242 010 GEAR MOT 11 87 ZG8 253 010 GEAR REDUCTION S3 12 87 ZG8 246 010 GEAR IDLER 2 13 87 ZG8 252 010 GEAR REDUCTION L3 14 87 ZG8 231 010 LEVER SHUTTER 15 87 ZG8 232 110 SPR E SHUTTER 16...

Страница 70: ...90 MD MECHANISM EXPLODED VIEW 3 3 E 1 F G B A C D 2 3 4 5 6 PLATE YOKE 7 8 9 10 12 13 14 16 P C B HLDR LED GEAR LEAD A 15 H 17 11...

Страница 71: ...87 A90 613 010 PICKUP KMS 260A 10 87 ZG3 216 010 SPR P RACK 11 87 ZG3 213 010 SPR P LEAD 12 87 A90 413 010 MOT FF 110PH 9 13 87 ZG3 206 010 GEAR A 14 87 ZG3 205 010 GEAR MOT SL 15 87 ZG3 208 010 HLDR...

Страница 72: ...86 ZM4 201 010 SPR E TRIG 3 82 ZM1 255 310 SPR E LER DIR 82 ZM1 258 110 SPR T PINCH L 82 ZM1 213 010 SPR T HEAD 82 ZM1 269 010 SPR T BRG 82 ZM1 214 010 SPR T DIR 82 ZM1 285 410 SPR C BT L 82 ZM3 323 0...

Страница 73: ...ISTOR TRIMMER CAP TRIMMER TUN CAP VARIABLE CAPACITOR VIB CER RESONATOR CERAMIC VIB XTAL RESONATOR CRYSTAL VR VOLUME ZENER DIODE ZENER REFERENCE NAME LIST MECHANICAL SECTION DESCRIPTION REFERENCE NAME...

Страница 74: ...737004 Printed in Singapore 2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111...

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