JVC Kds6060 Instruction Manual
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(No.MA028)1-21 3.2.16 Removing the loading gear 5, 6 and 7 (See Figs.35 and 36) • Prior to performing the following procedure, remove the top cover, chassis unit, pickup unit and top plate assembly. (1) Remove the screw K attaching the loading gear bracket. The loading gear 6 and 7 come off the loading gear brack- et. (2) Pull out the loading gear 5. Fig.35 Fig.36 KLoading gear bracket Loading gear 6 Loading gear 5 Loading gear 3 K Loading gear bracket Loading gear 6 Loading gear 5 Loading gear 7
1-22 (No.MA028) 3.2.17 Removing the gears (See Figs.37 to 40) • Prior to performing the following procedure, remove the top cover, chassis unit, top plate assembly and pickup unit. • Pull out the loading gear 3. (See Fig.35.) (1) Pull out the feed gear. (2) Move the loading plate assembly in the direction of the ar- row to release the L side plate from the two slots m of the chassis rivet assembly. (See Fig.37.) (3) Detach the loading plate assembly upward from the chas- sis rivet assembly while releasing the joint n. Remove the slide hook and loading plate spring from the loading plate assembly. (4) Pull out the loading gear 2 and remove the change lock le- ver. (5) Remove the E ring and washer attaching the changer gear 2. (6) The changer gear 2, change gear spring and adjusting washer come off. (7) Remove the loading gear 1. (8) Move the change plate rivet assembly in the direction of the arrow to release from the three shafts of the chassis rivet assembly upward. (See Fig.38.) (9) Detach the loading gear plate rivet assembly from the shaft of the chassis rivet assembly upward while releasing the joint p. (See Figs.38 and 40.) (10) Pull out the loading gear 4. Fig.37Fig.38 Fig.39 Fig.40 Slot m Slot m Joint n Feed gearLoading plate assemblyL side plate Chassis rivet assembly Joint p Loading gear 4 Loading gear 2 Loading gear 1 Change gear 2Loading gear plate rivet assembly E ring ShaftsChange plate rivet assembly Shaft Chassis rivet assembly Loading plate assembly Loading plate spring Chassis rivet assemblySlot mSlot m Joint n L side plate Slide hook Loading gear 2 Loading gear 4 Change gear 2Loading gear 1 E ring Washer Change gear spring Loading gear plate rivet assembly Chassis rivet assembly Adjusting washer Change plate rivet assemblyChange lock lever
(No.MA028)1-23 3.2.18 Removing the turn table / spindle motor (See Figs.41 and 42) • Prior to performing the following procedure, remove the top cover, connector board, chassis unit and clamper assembly. (1) Remove the two screws L attaching the spindle motor as- sembly through the slot of the turn table on top of the body. (2) Unsolder the wire on the connector board if necessary. Fig.41 Fig.42 L Turn table L Turn table Spindle motor
1-24 (No.MA028) SECTION 4 ADJUSTMENT 4.1 Adjustment method „ Test instruments required for adjustment (1) Digital oscilloscope (100MHz) (2) Electric voltmeter (3) Digital tester (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 (6) Extension cable for check EXTSH002-22P × 1 „ Standard volume position Balance and Bass &Treble volume : lndication0 Loudness : OFF„ Standard measuring conditions „ Dummy load Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard. „ How to connect the extension cable for adjusting Caution: Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power. If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.Power supply voltage DC14.4V(10.5 to 16V) Load impedance 20KΩ(2 Speakers connection) Output Level Line out 2.0V (Vol. MAX) The cardboard is cut in a suitable size. uses for the insulation stand of mechanism. EXTSH002-22P Extension cable Heat sink Rear bracket
(No.MA028)1-25 SECTION 5 TROUBLESHOOTING 5.1 Feed section 5.2 Focus section 5.3 Spindle section 5.4 Tracking section Check the feed motor. Is 4V present at both sides of the feed motor? Is the wiring for IC561 pin 22 correct?NO YES YESIs the voltage output at IC561 pin 22 5v or 0V NOIs 6V or 2V present at IC541 pins 4 and 5? NO Check IC541. YES YES Is 5V present at IC541 pin 14? Check the feed motor connection wiring. YES Check the vicinity of IC561. NOCheck CD 8V. NO When the lens is moving:Check the circuits in the vicinity of IC541 pins 15 and 16. Does the S-search waveform appear at IC541 pins 8 and 9? 4V YES NO YES Check the pickup and its connections. Is the disk rotated? YES NOIs 4V present between IC541 pins 6 and 7?NOIs 4V present at IC561 pins 24 and 25?NOCheck IC561. Does the RF signal appear at TP RF? YES YES Check the spindle motor and its wiring. Is the RF waveform at TP RF distorted? YES Proceed to the Tracking section Check the circuits in the vicinity of IC501 or the pickup. NO NO YES Check the vicinity of IC541 When the disc is rotated at first: Approx. 1.2V Is the tracking error signal output at TP TE? YES Check IC561. Check the circuits in the vicinity of IC501 pins 25 and 26.NOCheck the pickup and its connections.NO
1-26 (No.MA028) 5.5 Signal processing section
No sound from either
channel.
Is 9V present at IC301 pin
31?
Compare the L-ch and
R-ch to locate the
defctive point. Is the sound output from
both channels (L, R)?
Check the viciniyt of the
Q321 audio power
supply.
NO NO NO
NO YES
YES
YES
YES YES
Check IC151 and its
peripheral circuits.
Is the audio signal
(including sampling output
components) output to
IC151 pins 1 and 7 during
playback?
Is the audio signal output
at IC301 pins 3 and 30
during playback?
NO
Check IC301 and its
peripheral circuits.
Check the muting circuit. Normal
(No.MA028)1-27 5.6 Maintenance of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expired, the following symptoms will appear. • The level of RF output (EFM output: amplitude of eye pattern) will be low. (3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value, the la- ser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor is adjusted while the pickup is functioning normally, the laser pickup may be damaged due to excessive current.5.7 Replacement of laser pickup Is RF output 1.0 0.35Vp-p?Replace it. NO YES O.K Turn off the power switch and,disconnect the power cord from the ac outlet. Replace the pickup with a normal one.(Refer to Pickup Removal on the previous page) Plug the power cord in,and turn the power on. At this time,check that the laser emits for about 3seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly. Play a disc. Check the eye-pattern at TP1. Finish.
1-28 (No.MA028) 5.8 16pin cord diagram Black RD BK Red BLBlue WH WhiteGN Green VI Violet GYGray RR FR FL RLACC GND Rear Right Front Right Front Left Rear LeftACC Line Ground Memory Backup Battery+ 8 7 6 5 4 3 2 1 9 1011 12 1314 15 16 BK RD NC BL/WH WH GN VI GYWH/BK GN/BK VI/BK GY/BK NCNC NC YL B1 B2 B3 B4A1 A2 A3 A4 NC NC NC NC YL BL/WH RD BKB1 B2 B3 B4A1 A2 A3 A4 VI GY WH GNVI/BK GY/BK WH/BK GN/BK ACC 7 RD B4 16 YL A2 MEMORY 5 BL/WH REMOTEB3 8 BK GNDA4 2 VI B1RR+ 10 VI/BKA1 RR- 1 GY B2 FR+ 9 GY/BK A2 FR- 4 WH B3FL+ 12 WH/BK A3 FL- 3 GN B4RL+ 11 GN/BK A4 RL- REMOTERemote MEMORY YLYellow
(No.MA028) AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan VICTOR COMPANY OF JAPAN, LIMITED WPC Printed in Japan
SCHEMATIC DIAGRAMS
CD RECEIVER
No.MA028SCH
2003/11COPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LTD.
KD-S6060
Area suffix
E ----------- Continental Europe
COMPACT
DIGITAL AUDIO
SEL LOUD
DISPSSM
SCM MODE 7 9 10 12RND11RPT8MOAM
CD
FM
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards2-1
2-2
2-5, 6
CD-ROM No.SML200311