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JVC RC-BZ5LB Service Manual
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JVC RC-BZ5LB Service Manual

Cd portable system
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See also: Instruction Manual
SERVICE MANUAL
REMOTE CONTROL RM-SRCBZ5
REMOTE CONTROL RM-SRCBZ6
Contents
Description of major ICs
CD PORTABLE SYSTEM
RC-BZ6BU
RC-BZ5LB/BZ5RD
RC-BZ6BU
1-2
1-3
1-4
1-5
1-6
1-15
1-18
COPYRIGHT
2000 VICTOR COMPANY OF JAPAN, LTD.
J ---------------- U.S.A.
C ------------- Canada

Comparison table

Item
Jog dial circuit
Not used
Back light (LCD)
Not used
Bass boost circuit
Not used
Power amplifier
Electrical volume
Not used
RC-BZ5LB/BZ5RD
RC-BZ6BU

Areas suffix

Used
Used
Used
14W
18W
Used
No.20819
July. 2000

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  • Page 1 J ---------------- U.S.A. C ------------- Canada REMOTE CONTROL RM-SRCBZ5 RC-BZ5LB/BZ5RD REMOTE CONTROL RM-SRCBZ6 RC-BZ6BU Comparison table Contents Item RC-BZ5LB/BZ5RD RC-BZ6BU Safety precautions Jog dial circuit Not used Used Importance administering point on the safety Back light (LCD) Not used Used...

  • Page 2: Safety Precautions

    RC-BZ5LB/BZ5RD RC-BZ6BU Safety precautions 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer.
  • Page 3 RC-BZ5LB/BZ5RD RC-BZ6BU Importance administering point on the safety Power supply board F902 CN306 CN307 POWER TRANSFORMER S901 For USA and Canada / pour Etats - Unis d' Amerique et Canada Caution: For continued protection against risk of fire, replace only with same type 3A/125V for F902 and F903.
  • Page 4 RC-BZ5LB/BZ5RD RC-BZ6BU Preventing static electricity 1.Grounding to prevent damage by static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
  • Page 5 RC-BZ5LB/BZ5RD RC-BZ6BU Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated.

  • Page 6: Disassembly Method

    RC-BZ5LB/BZ5RD RC-BZ6BU Disassembly method <Main body> Removing the front cabinet assembly / rear cabinet assembly (See Fig.1 to 3) Detach the battery cover on the back of the body. Remove the eight screws A attaching the front cabinet assembly and the rear cabinet assembly.
  • Page 7 RC-BZ5LB/BZ5RD RC-BZ6BU <Front cabinet assembly> Speaker (L) Removing the speaker (L) and (R) (See Fig.4) Prior to performing the following procedure, remove the front cabinet assembly. Remove the eight screws B in the front cabinet. Speaker (R) Fig.4 Removing the cassette door (See Fig.5 and 6)
  • Page 8 RC-BZ5LB/BZ5RD RC-BZ6BU <Rear cabinet assembly> CD / cassette and amplifier assembly Removing the CD / cassette and amplifier Slot a assembly from the rear cabinet Release the hornese (See Fig.7 and 8) Prior to performing the following procedure, remove the front cabinet assembly and the rear cabinet assembly.
  • Page 9 RC-BZ5LB/BZ5RD RC-BZ6BU CD cover and door unit Removing the CD cover and door unit (See Fig.9 and 10) Prior to performing the following procedure, remove the CD / cassette and amplifier assembly. Disconnect the harness from connector CN704 on the key switch / display board (The harness is extending from the door switch board).
  • Page 10 RC-BZ5LB/BZ5RD RC-BZ6BU Removing cassette mechanism assembly (See Fig.13 to 15) Prior to performing the following procedure, remove the CD / cassette and amplifier assembly, the CD cover and door unit and disconnect the harnesses connected to the key switch / display board.
  • Page 11 RC-BZ5LB/BZ5RD RC-BZ6BU Key switch/display bord Removing the main board CN702 (See Fig.17 to 19) Prior to performing the following procedure, remove CN301 the CD / cassette and amplifier assembly, the CD cover and door unit and the CD mechanism assembly.
  • Page 12 RC-BZ5LB/BZ5RD RC-BZ6BU Removing power transformer Power transformer assembly assembly (See Fig.20) Prior to performing the following procedure, remove the front cabinet assembly and the rear cabinet assembly. Disconnect the harnesses from connector CN306 and CN307 on the power board in the power transformer assembly.
  • Page 13 RC-BZ5LB/BZ5RD RC-BZ6BU <Cassette mechanism section> Capstan motor ass’ y Motor bracket Main belt Eject slide lever Flywheel ass’ y Leaf switch Fig.1 Eject slide lever Capstan motor (Fig.1) 1. Remove the cassette mechanism assembly. (Refer to the article “Cassette mechanism assembly”...
  • Page 14 RC-BZ5LB/BZ5RD RC-BZ6BU Rec/PB head Capstan shaft Stopper Stopper Erase head Pinch roller arm ass’y Fig.4 Pinch roller arm ass’y Stopper Erase head Base ass’y Stopper Fig.5 Fig.6 Pinch roller arm assembly (Fig.4 to 5) 1. Pull out the stopper protruding from the base assembly in the direction of the arrow e to remove it from the pinch roller arm assembly.

  • Page 15: Adjustment Method

    RC-BZ5LB/BZ5RD RC-BZ6BU Adjustment method Test Instruments required for adjustment Test remarks Low frequency oscillator 1. Negative side of the input and output terminals of the (Frequency range: 50Hz to 20kHz) testing set, shall be isolated from each other. The (Output: 0 dBs across 600 Ω terminating resistor) negative side should not be commonly connected Attenuator(Impedance: 600 Ω)
  • Page 16 RC-BZ5LB/BZ5RD RC-BZ6BU Cassette amplifier section Item Conditions Adjustment & Confirmation Method Standard Value Adjusting Point Head azimuth • Test tape: 1. Play back the test tape VT702 (8 kHz sig- • Output: Max. Azimuth adjusting adjustment VT702(8 kHz) nal). level plus less screw (after head •...
  • Page 17 RC-BZ5LB/BZ5RD RC-BZ6BU Tuner sections Item Conditions Adjustment & Confirmation Methods Stand. values Adjust FM, AM IF Since a solid IF is being used, no adjustment adjustment is required. Since a ceramic resonator is being used, adjustment no adjustment is required.
  • Page 18 RC-BZ5LB/BZ5RD RC-BZ6BU Description of major IC's MN35510 (IC603) : Digtal servo & digtal signal processor 1. Block diagram DVDD1 VDSS1 /RST /TEST RFENV TRCRS VDET /RFDET 1-18...
  • Page 19 RC-BZ5LB/BZ5RD RC-BZ6BU BA6897FP (IC602) : 4channel driver 1.Terminal layout & Block diagram D.BUF CH1-OUTA D.BUF CH1-OUTB CH4-OUTA D.BUF CH1-INA Level CH4-OUTB Level shift shift D.BUF CH1-INB CH4-INA T.S.D TEST1 CH4-INB TEST2 BIAS IN MUTE DRIVER CH3-INB CH2-INB MUTE CH2-INA CH3-INA...
  • Page 20 RC-BZ5LB/BZ5RD RC-BZ6BU LC72136N (IC2) : PLL Frequency sinsesizer 1.Terminal layout FM/AM LPFOUT LPFIN CLOCK FM ST VCO STOP FMIN AM/FM AMIN IFCONT SDIN IFIN 2. Block diagram Phase Reference Detector Driver Charge Pump Swallow Counter Swallow Counter 1/16,1/17 4bit 1/16,1/17 4bit...
  • Page 21 RC-BZ5LB/BZ5RD RC-BZ6BU TA2104AN (IC1) : AM/FM 1 chip tuner IC 1.Terminal layout & Block diagram RF OUT RF IN LPF1 LPF2 BUFF DECODE BUFF DIVIDE BUFF LEVEL BUFF 1 / 8 ST / MO FM / AM FMRF AMIF FMIF...
  • Page 22 RC-BZ5LB/BZ5RD RC-BZ6BU AN8806SB (IC601) : RF & Servo amplifier 1.Treminal layout PDAC PDBD LDON PDER PDFR TBAL RFOUT FBAL RFIN C.AGC FEOUT C.ENV TEOUT C.EA CROSS CSBDO TEBPF VDET CSBRT LDOFF OFTR VREF /NRFDET 2.Block diagram ENV CIRCUIT VCBA OFTR...
  • Page 23 RC-BZ5LB/BZ5RD RC-BZ6BU 3. Pin function Pin No. Symbol Function APC amp input terminal APC amp output terminal LDON APC ON/OFF control terminal Connect to ground Power supply Inverse input pin for RF amp RFamp output RFOUT RF input RFIN Connecting pin of AGC loop filter C.AGC...
  • Page 24 RC-BZ5LB/BZ5RD RC-BZ6BU TA2068N (IC301) : Rec/PB. amplifier 1. Terminal layout RAIN1 PBO1 MICSEL PBNF1 CDIN1 REC1 PBIN1 OUT1 VREF OUT2 PBIN2 REC2 CDIN2 PBNF2 TAPE PBO2 RAIN2 MICNF MICIN 2. Block diagram MONITOR AMP 1 RADIO MUTE TAPE LINE NAB AMP1 REC AMP1 –...
  • Page 25 RC-BZ5LB/BZ5RD RC-BZ6BU VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINSS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.20819) 200007(S)
  • Page 26 RC-BZ5LB/BZ5RD RC-BZ6BU Block diagrams (RC-BZ5LB/BZ5RD) Main Volume CN702 FM RF/IF/DET/MPX AM RF/IF/DET FW302 Power Amp. Q101 Q201 Q302 Q101 IC302 Tuner SMUTE L&R R/P HEAD CN301 J301 Q112 Q212 IC301 R-CH / L-CH Bias SPEAKER CN309 R/P Amp. CN601 CD Pickup RF/Servo amp.
  • Page 27 RC-BZ5LB/BZ5RD RC-BZ6BU Block diagrams (RC-BZ6BU) L.OSC FM RF/IF/DET/MPX AM RF/IF/DET Power Amp. Bass Boost Amp. Q101 Q201 IC304 Q302 E.VOL Q101 IC302 IC303 Tuner L&R SMUTE R/P HEAD CN301 J301 IC301 R-CH / L-CH Bias SPEAKER CN309 R/P Amp. CN601 CD Pickup RF/Servo amp.
  • Page 28 RC-BZ5LB/BZ5RD RC-BZ6BU Standard schematic diagrams TO MAIN AMP SECTION System control circuit (RC-BZ5LB/BZ5RD only) TO D-1 on page 2-7 CN701 QGF1212F1-17 8.3V SW8V 6.8V CD+B 0.7V 2.1V CN703 AC/DC QGF1212F1-12 5.7V TAPE REPEAT SLEEP BASS 5.0V SAFETY S858 4.6V REST 5.1V...
  • Page 29 RC-BZ5LB/BZ5RD RC-BZ6BU System control circuit (RC-BZ6BU only) TO D-1 on page 2-8 TO MAIN AMP SECTION PL701 BACK LIGHT CN701 FW703 QGF1212F1-17 SW8V 8.3V 6.8V CD+B 0.7V CN703 FW702 AC/DC 2.1V QGF1212F1-13 CLOCK/METER TAPE 5.7V CLOCK SLEEP S858 SAFETY 5.0V REST 4.5V...
  • Page 30 RC-BZ5LB/BZ5RD RC-BZ6BU CD amplifire circuit R605 270K TBAL FBAL R606 150K R610 R612 R609 150K 100K C623 C617 C620 0.022 C618 180P RFENV C606 C607 0.0022 0.001 0.001 TRCRS C691 150P VDET 470K R697 C692 150P C653 0.022 C694 C655...
  • Page 31 RC-BZ5LB/BZ5RD RC-BZ6BU Tuner circuit NOTES 1. VOLTAGES OF THE TABLE ARE DC-MEASURED WITH A DIGITAL VOLT METER. 2. ALL RESISTORS ARE 1/6W +/-5% CARBON RESISTOR. PIN NO. 3.ALL RESISTANCE VALUES ARE IN OHM FM NO SIGNAL 5.0 5.0 3.6 5.0 4.
  • Page 32 RC-BZ5LB/BZ5RD RC-BZ6BU Amplifier circuit (RC-BZ5LB/BZ5RD only) VR302 DVQO121-A54 T.S.D STANDBY POWER AMP BIAS CIRCUI IC302 LA4597K CN702 TIP-X05P-82 VMW2422 1 2 3 4 5 C232 R227 R231 FW302 C122 0.47/50 3.3K 100/16 C256 C222 Q212 0.0082 100/16 SMUTE DRIVE D303...
  • Page 33 RC-BZ5LB/BZ5RD RC-BZ6BU Amplifier circuit (RC-BZ6BU only) BASS BOOST C217 1/50 T.S.D STANDBY R202 POWER AMP BIAS CIRCUI IC302 C215 C325 C234 IC304 LA4597K 0.1/50 100/10 0.0056 BA15218N OR NJM455OL C210 C209 C213 R319 C212 0.082 0.082 0.022 0.47 R201 R322...
  • Page 34 RC-BZ5LB/BZ5RD RC-BZ6BU Printed circuit boards Main board Block No. 01...
  • Page 35 RC-BZ5LB/BZ5RD RC-BZ6BU System CPU board (RC-BZ5LB/BZ5RD) Block No.02 System CPU board (RC-BZ6BU) Block No.02 2-10...
  • Page 36 * All printed circuit boards and its assemblies are not available as service parts. Areas suffix J ----------------------------- U.S.A. C -------------------------- Canada - Contents - [RC-BZ5LB/BZ5RD] Exploded view of general assembly and parts list Cassette mechanism assembly and parts list CD mechanism assembly and parts list...
  • Page 37 RC-BZ5LB/BZ5RD Exploded view of general assembly and parts list Block No.
  • Page 38 SCREW TT2.6X8 COVER-FRONT GJ460340030101 LENS REMOTE SENSOR GJ460340260101 LENS GJ460340400101 FRONT COVER GJ0001-SPGR SPEAKER GRILLE SHILD, RC-BZ5RD GJ0003-SPGR SPEAKER GRILLE SHILD, RC-BZ5LB GJ460340250101 VOLUME KNOB GJ460340490101 C.DOOR LENS RC-BZ5RD GJ460340190101 C.DOOR LENS RC-BZ5LB GJ460340220101 FRONT LENS RC-BZ5LB GJ460340480101 FRONT LENS...
  • Page 39 RC-BZ5LB/BZ5RD Parts list ( Cassette mechanism assembly ) Parts list ( Cassette mechanism assembly ) Block No. M2MM Block No. M2MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area 192114316T BASE ASSY 19211301T EJ.
  • Page 40 RC-BZ5LB/BZ5RD Cassette mechanism assembly and parts list Block No. TN-21ZVC-1800 Pulley hight dimension...
  • Page 41 RC-BZ5LB/BZ5RD CD mechanism assembly and parts list Block No. Grease Point No.EXL-M7B G-31KB (Grease to apply have to be alittle for the exchange) G-31KB G-31KB NOTE Please order moutor after confirming the number of the P.C.Board because the combination of feed motor is different according to the P.C.Board used.
  • Page 42 RC-BZ5LB/BZ5RD Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area GJ264130392101 C.CAPACITOR 50V SL K 3.9PF C 203 GJ270122260332 E.CAPACITOR 16V M 22UF GJ264271032101 C.CAPACITOR 16V Y M 0.01UF...
  • Page 43 RC-BZ5LB/BZ5RD Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 652 GJ264032202101 C.CAPACITOR 50V SL J 22PF D 904 1N5401-M SI DIODE C 653 GJ264182232101 C.CAPACITOR...
  • Page 44 RC-BZ5LB/BZ5RD Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area Q 316 2SA1015/YG/-T TRANSISTOR GJ872923115 R 132 GJ250081032103 CARBON RESISTOR CF 1/6W J 10K Q 317...
  • Page 45 RC-BZ5LB/BZ5RD Electrical parts list ( Main board ) Block No. 01 Item Remarks Parts number Parts name Area R 641 GJ250085632103 CARBON RESISTOR CF 1/6W J 56K R 642 GJ250081232103 CARBON RESISTOR CF 1/6W J 12K R 643 GJ250088222103 CARBON RESISTOR CF 1/6W J 8.2K...
  • Page 46 RC-BZ5LB/BZ5RD Electrical parts list ( System CPU board ) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 702 GJ116323691 C.CAPACITOR 24PF CH 2012 5% R 723 GJ121607391 C.RESISTOR 10K 1/10W 5%...
  • Page 47 RC-BZ5LB/BZ5RD Electrical parts list ( System CPU board ) Block No. 02 Item Remarks Parts number Parts name Area S 856 QSW0707-001Z TACT SWITCH GJ390110171110 S 857 QSW0707-001Z TACT SWITCH GJ390110171110 S 858 QSW0707-001Z TACT SWITCH GJ390110171110 S 865 QSW0707-001Z...
  • Page 48 RC-BZ5LB/BZ5RD Packing materials and accessories parts list Block No. Block No. A2~A7 Packing parts list Block No. M4MM Item Parts number Parts name Q'ty Description Area GJ560340040101 CUSHION (L) GJ560340050101 CUSHION (R) GJ560340140101 CARTON WALL RC-BZ5RD GJ560340130101 CARTON WALL RC-BZ5LB...
  • Page 49 RC-BZ6BU Exploded view of general assemble and parts list Block No. 3-14...
  • Page 50 RC-BZ6BU Parts list ( General assembly ) Parts list ( General assembly ) Block No. M1MM Block No. M1MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area GJ460340470101 LENS CD DOOR GJ702244304512 SCREW TT3X45 GJ670000010330 D.SPACER...
  • Page 51 RC-BZ6BU Parts list ( Cassette mechanism assembly ) Parts list ( Cassette mechanism assembly ) Block No. M2MM Block No. M2MM Item Parts number Parts name Q'ty Description Area Item Parts number Parts name Q'ty Description Area 192114316T BASE ASSY 19211301T EM.
  • Page 52 RC-BZ6BU Cassette mechanism assembly and parts list Block No. TN-21ZVC-1800 Pulley hight dimension 3-17...
  • Page 53 RC-BZ6BU CD mechanism assembly and parts list Block No. Grease Point No.EXL-M7B G-31KB (Grease to apply have to be alittle for the exchange) G-31KB G-31KB NOTE Please order moutor after confirming the number of the P.C.Board because the combination of feed motor is different according to the P.C.Board used.
  • Page 54 RC-BZ6BU Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area GJ264130392101 C.CAPACITOR 50V SL K 3.9PF C 134 GJ283105622432 M.CAPACITOR 50V K 0.0056UF GJ264271032101 C.CAPACITOR 16V Y M 0.01UF C 155 GJ264141812101...
  • Page 55 RC-BZ6BU Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 613 GJ264143312101 C.CAPACITOR AXIAL 50V B K 3 CN307 5268-03A CONNECTOR 3PINS RA C 614 GJ282031042415 M.CAPACITOR 50V J 0.1UF...
  • Page 56 RC-BZ6BU Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area L 602 GJ141033431 INDUCTOR 100UH 10% Q40 R 57 GJ250081022103 CARBON RESISTOR 1/6W J 1K L 901 VQP0028-330Z INDUCTOR...
  • Page 57 RC-BZ6BU Electrical parts list ( Main board ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area R 311 GJ250081012103 CARBON RESISTOR 1/6W J 100 R 901 GJ250084722103 CARBON RESISTOR 1/6W J 4.7K R 312 GJ250084312103 C.RESISTOR...
  • Page 58 RC-BZ6BU Electrical parts list ( System CPU board ) Block No. 02 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area C 702 GJ116323691 C.CAPACITOR 24PF CH 2012 5% R 709 GJ121608191 C.RESISTOR 22K 1/10W 5% C 703 GJ116324091 C.CAPACITOR...
  • Page 59 RC-BZ6BU Electrical parts list ( System CPU board ) Block No. 02 Item Remarks Parts number Parts name Area R 797 GJ121606591 C.RESISTOR 4.7K 1/10W 5% R 851 GJ121605391 C.RESISTOR 1.5K 1/10W 5% R 852 GJ121605591 C.RESISTOR 1.8K 1/10W 5% R 853 GJ121605991 C.RESISTOR...
  • Page 60 RC-BZ6BU Packing materials and accessories parts list Block No. Block No. A2~A6 Packing parts list Block No. M4MM Item Parts number Parts name Q'ty Description Area GJ560340040101 CUSHION (L) GJ560340050101 CUSHION (R) GJ560340030101 CARTON WALL QPA02503503P POLY BAG 250 X 350 GJ740456520300 POLYBAG PE 450 X 650...

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