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JVC RC-BX33SL, Service Manual

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JVC RC-BX33SL Service Manual Download Page 18

2-2

RC-BX33SL

 

BLOCK DIAGRAM

CD SW

CD SW

R/P SW

R  R/P

L  R/P

IC 201 TA2068

R/P PRE.AMP

SIGAL R/P SLECT. SW

AM ANT

AM OSC

TU-5V

REG.

IC903

TA2092N

MOTER DRIVER

IC301 LA4227

POWER AMP

L. SPEAKER

R. SPEAKER

OPTICAL PICKUP

IC902

TA2153FN

HEAD AMP

LCD

KEY

CD DOOR

LEAF - SW

IC902

TA9457F

(DSP/MCU)

REM

DISC

FM RF

FM OSC

FM F/E, IF/DET/MPX

AM RF/IF/DET

(IC101 LA1824)

BPF

FM ANT

Q401

8V REG

DC SUP

SW

CASS. DECK

LEAF - SW

R/P HEAD

ERASE HEAD

Summary of Contents for RC-BX33SL

Page 1: ...RTANT PLEASE TAKE NOTE BEFORE ORDERING 1 Order all service parts through JVC Asia Pte Ltd Customer Satisfaction Dept 2 Two orders are available Initial order and last order Before End Of Line 3 Minimum order quantity 100pcs 4 Delivery term Minimum 2 months upon confirmation of order No 28208 DEC 2001 COPYRIGHT 2001 JVC ASIA PTE LTD RC BX33SL Area Suffix UX Saudi and relative U Except ux ...

Page 2: ...re assembling the product always perform an isolation check on the exposed metal parts of the product antenna terminals knobs metal cabinet screw heads headphone jack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Teste...

Page 3: ...ring transport and before installation both sides of the laser diode on the replacement optical pickup are shorted After replacement return the shorted parts to their original condition Refer to the text 2 Do not use a tester to check the condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 1 2 Handling the traverse unit optical p...

Page 4: ...remove the Two screws C retaining the bottom of rear panel 4 Take out the rear panel from the body And disconnect the CN302 on the main board right side Note Be careful of the FM antenna white wire it is connection with the tuner PCB up side You can directly take out from the tuner PCB When you re assembly the product plug the FM antenna white wire into the Tuner PCB S FM ANT position Screw A Scre...

Page 5: ...anel 2 Remove the Two Screws D on the Black Backet then take out the black backet on the front panel Screws D 3 Remove the Two Screws E retaining on the left of front panel Screws E 4 Remove the One Screw F retaining on the right of front panel Top panel Screw F 1 5 ...

Page 6: ...ain Board PCB Front Panel CN 201 CN 202 Main PCB CN 301 Top Panel 6 Then take out the top panel from the front panel 7 Remove the nine screws G from the Main Board PCB Screw G Screw G Screw G 8 Take out the Main Board PCB from the front panel disconnect the CN901 CN903 on the Main Board PCB 1 6 ...

Page 7: ... the adjustable range 3 Since the IF sweeper is a fixed device there is 8 Torque gauge For play and back tension no to adjust this sweeper FWD CT 120m and FF REW CT F 4 Since a ceramic oscillator is used there is no need to perform any MIX adjustment Measurement conditions 5 Since a fixed coil is used there is no need to adjustment the FM tracking Power supply voltage AC120V 60Hz 6 The input and o...

Page 8: ...nt Use thread lock TB 1401B to secure the azimuth adjustment screw 2 AC BIAS FREQUENCY ADJUSTMENTS 1 Connect frequency counter to CN201 BS 2 R P swith in recording state 3 Adjusting T201 use a plastic screwdriver AC bias frepuency 62 1KHZ 3 TAPE SPEED ADJUSTMENT 1 Insert the test tape MTT 111N 3 000 HZ 2 Press the PLAY button 3 Use a flat tip screwdriver to turn the MOTOR VR adjust MOTOR VR so tha...

Page 9: ...est tape Adjust VR401 so that the frequency counter Tape speed MOTOR VR of tape speed TCC 112 3KHz reading becomes 3 010Hz 15Hz when of deck Measurement output playing back the test tape TCC 112 3KHz 3 010Hz terminal with playback and recording mechanism 15Hz Headphone terminal after ending forward winding of the tape Reference Values for Confirmation Items ITEMS Measurement Measurement method Sta...

Page 10: ...chanism to the recording and pausing between frequency Test tape TDK D60 condition in advance 1KHz and characteristics 8KHz Measurement input 2 While repetitively inputting the reference 1dB 2dB terminal OSC IN frequency signal of 1KHz and 8KHz from OSC IN record and playback the tape 3 While receding and playback the test tape Lch and Rch so that the output deviation between 1KHz and 8KHz becomes...

Page 11: ...he lead of TP1 Power Key Slider turns REST SW ON Automatic tuning of TE offset Laser ON Detection of disc Auto tuning of Focus offset Auto measurement of focus A curve amplitude Disc is rotated Focus servo ON Tracking servo ON Auto measurement of Tracking error amplitude Automatic tuning of Tracking error Automatic tuning of Focus error balance Automatic tuning of Focus error gain Automatic tuning...

Page 12: ...102 3 Coverage 1640 1740 KHz Oscilloscope TP8 E PVC4 4 600 KHz AM Signal Loop TP4 H MW COIL 5 1400 KHz Generior ANT Oscilloscope TP8 E PVC3 Maximum b FM Adjustment BAND SELECT SWITCH FM FM Dummy Antenna 75 ohm unbalance ste Adjusting Tuning Input Connection Output Connection Adjustment Oscilloscope circuit Frequency Measurement input Measurement output parts 1 IF FM Sweep TP4 H TP4 H T104 10 7 MHz...

Page 13: ...ch L output Function AM IF output FM IF input AM IF input AM AGC FM DET Pilot detector filter AM FM Switch L output Pin No 17 18 19 20 21 22 23 24 Pin No 17 18 19 20 21 22 23 24 Function R output MPX input AM FM detector output FM OSC VCC2 FM RF output GND2 FM RF input Function R output MPX input AM FM detector output FM OSC VCC2 FM RF output GND2 FM RF input Major ICs Description LA4227 1 2 3 4 5...

Page 14: ... VIN2 9 10 11 12 13 14 15 16 9 10 11 12 13 14 15 16 OUT 2 PVCC2 OUT 2 PW GND PW GND OUT 3 PVCC3 OUT 3 OUT 2 PVCC2 OUT 2 PW GND PW GND OUT 3 PVCC3 OUT 3 17 18 19 20 21 22 23 24 17 18 19 20 21 22 23 24 VIN3 SGND SVCC1 VIN4 OUT 4 PVCC4 OUT 4 PW GND VIN3 SGND SVCC1 VIN4 OUT 4 PVCC4 OUT 4 PW GND TA2092N 1 14 RC BX33SL ...

Page 15: ...o 1 2 3 4 5 6 Function VCC RFGC GMAD FNI FPI TPI Function VCC RFGC GMAD FNI FPI TPI Pin No 13 14 15 16 17 18 Pin No 13 14 15 16 17 18 Function TEN TEO SBAD FEO FEN SEB Function TEN TEO SBAD FEO FEN SEB Function TNI MDI LDO SEL TEB 2VRO Function TNI MDI LDO SEL TEB 2VRO Pin No 7 8 9 10 11 12 Pin No 7 8 9 10 11 12 Function VRO RFRP BTC RFCT PKC RFRPIN Function VRO RFRP BTC RFCT PKC RFRPIN Pin No 19 ...

Page 16: ...JVC Asia Pte Ltd 101 Thomson Road 28 04 United Squares Singapore 307591 No 28208 Printed in Singapore 200104 L RC BX33SL ...

Page 17: ...EFORE ORDERING 1 Order all service parts through JVC Asia Pte Ltd Customer Satisfaction Dept 2 Two orders are available Initial order and last order Before End Of Line 3 Minimum order quantity 100pcs 4 Delivery term Minimum 2 months upon confirmation of order No 28208sch DEC 2001 COPYRIGHT 2001 JVC ASIA PTE LTD RC BX33SL Area Suffix UX Saudi and relative U Except UX ...

Page 18: ...T AM OSC TU 5V REG IC903 TA2092N MOTER DRIVER IC301 LA4227 POWER AMP L SPEAKER R SPEAKER OPTICAL PICKUP IC902 TA2153FN HEAD AMP LCD KEY CD DOOR LEAF SW IC902 TA9457F DSP MCU REM DISC FM RF FM OSC FM F E IF DET MPX AM RF IF DET IC101 LA1824 BPF FM ANT Q401 8V REG DC SUP SW CASS DECK LEAF SW R P HEAD ERASE HEAD ...

Page 19: ...RCRC BX33SL 2 3 Wiring Diagram ...

Page 20: ...Circuit Diagram 1 RC BX33SL 2 4 ...

Page 21: ...RC BX33SL 2 5 Circuit Diagram 2 ...

Page 22: ...RC BX33SL 2 6 Printed Circuit Boards ...

Page 23: ...JVC Asia Pte Ltd 101 Thomson Road 28 04 United Squares Singapore 307591 No 28208 Printed in Singapore 200104 L RC BX33SL ...

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