JVC RX-6010VBK, RX-6012VSL Service Manual

RX-6010VBK/6012VSL

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-6010VBK

SLEEP

VCR

SURROUND

– SUBWOOFER +TEST

SURROUND

EFFECT

– CENTER +

MODE

– REAR•L + – VCR CH +

SOUND

7/P

CD-DISC

TV/VIDEO

– REAR•R +

DVD

TV SOUND

VCR

TAPE/CDR

TV VOL

VOLUME

–

TV CH

–

RM-SRX6010U

REMOTE CONTROL

A/V CONTROL RECEIVER

AUDIO

ANALOG/DIGITAL

FM/AM

MUTING

RX-6012VSL

Area Suffix

RX-6010VBK

RX-6012VSL

UY US UP A

+10

ENTER

PHONES

STANDBY

STANDBY/ON

FM/AM TUNING

DIGITAL

SURROUND

SURROUND ON/OFF

DSP MODE

FM/AM PRESET FM MODE

DIGITAL

INPUT ATT

SPEAKERS ON/OFF

MEMORY

INPUT DIGITALINPUT ANALOG

AUDIO/VIDEO CONTROL RECEIVER

DVD VCR TV SOUND

CD TAPE/CDR

SOURCE NAME

FM/AM

ADJUST

DOWN UP

MASTER VOLUME

SETTING

CONTROL

U.S.military

Argentina

Singapore

Korea

Australia

DIGITAL

As for RX-6012VSL the body is silver color

Contents

Safety precautions --------------------------------------------------------1-2 Disassembly method -----------------------------------------------------1-3 Adjustment method -------------------------------------------------------1-8 Description of major ICs -------------------------------------------------1-9~22

No.20988

Jun. 2001

RX-6010VBK/ RX-6012VSL

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. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

2. Alterations of the design or circuitr y of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will fur ther relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These

characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement par ts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing) After 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 Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

Place this probe on each exposed metal part.

1. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs m ust be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.

In regard with component parts appearing on the silk-screen pr inted side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (Except the JC version)

1-2

RX-6010VBK/ RX-6012VSL

Disassembly method

Removing the top cover (See Fig.1)

Remove the four screws A attaching the top cover on both sides of the body.

Remove the three screws B on the back of the body.

Remove the top cover from behind in the direction of the arrow while pulling both sides outward.

Removing the front panel assembly

(See Fig.2 and 3)

Prior to performing the following procedure, remove the top cover.

Disconnect the card wire from connector CN402 on the audio board and CN201 on the power supply board in the front panel assembly.

Cut off the tie band fixing the harness.

Tie band

Main

board

CN402

Top cover

Fig.1

Front panel assembly

CN201

Power supply

board

Remove the three screws C attaching the front panel assembly.

Remove the four screws D attaching the front panel assembly on the bottom of the body. Detach the front panel assembly toward the front.

Removing the rear panel (See Fig.4)

Prior to performing the following procedure, remove the top cover.

Remove the power cord stopper from the rear panel by moving it in the direction of the arrow.

Remove the nineteen screws E attaching the each boards to the rear panel on the back of the body.

Audio board

Fig.2

Front panel assembly

Fig.3

Cord stopper

Remove the four screws F attaching the rear panel on the back of the body.

Rear panel

Fig.4

1-3

RX-6010VBK/ RX-6012VSL

Removing each board connected to the rear side of the audio board

(See Fig.5 to 8)

Prior to performing the following procedure, remove the top cover and the rear panel.

Cut off the tie band fixing the harness.

Disconnect the DSP board from connector CN481 on the audio board.

Audio

board

DSP

board

CN481

Tie band

Disconnect the audio input board, DVD board and the video board from connector CN421, CN431 and CN441 on the audio board.

Disconnect the tuner board from connector CN411 on the audio board.

CN421

Audio

input

board

CN431

CN481

DVD

Video

board

DSP board

CN441

Fig.5

Fig.6

Tuner

board

CN411

1-4

CN421

CN431

CN441

Fig.8

Tie band

CN411

Tuner

board

Audio

input

board

CN421

DVD

board

CN431

Video board

CN441

Fig.7

RX-6010VBK/ RX-6012VSL

Removing the audio board (See Fig.9)

Prior to performing the following procedure, remove the top cover and the rear panel.

Disconnect the card wire from connector CN402 on the audio board.

Disconnect the relay board from the audio board and the power supply board. (CN291,CN491)

Disconnect the harness from connector CN473, CN471, CN472, and CN385.

Remove the three screws G attaching the audio board assembly.

Remove the screw H attaching the audio board assembly.

Removing the main board (See Fig.10)

Prior to performing the following procedure, remove the top cover, the rear panel and audio board.

CN473

CN402

Audio board

CN471

CN472

CN385

Fig.9

Relay board

CN491

CN241

power supply board

CN291

Power transformer

CN203

Disconnect the harness from connector CN241 and CN203 on the power supply board respectively.

Remove the four screws I and the two screws J attaching the main board.

Removing the Heat sink (See Fig.11 and 12)

Remove the ten screws K and four screws L attaching the heat sink.

Remove the two screws L' attaching the heat sink from the rear side of main board.

Main

board

Heat sink

Fig.10

Fig.11

Main board

rear side

Fig.12

1-5

RX-6010VBK/ RX-6012VSL

Removing the power transformer

(See Fig.13)

Prior to performing the following procedures, remove the top cover.

Cut off the tie band fixing the harness.

Unsolder the two harnesses connected to the power transformer.

Disconnect the harness from connector CN251 and unsolder the harnesses connected to FW201 on the power transformer board.

Remove the four screws M attaching the power transformer.

Removing the voltage selector board and the power / fuse board (See Fig.13)

Prior to performing the following procedure, remove the top cover and the rear panel.

Unsolder the six harnesses connected to the power transformer board and remove the voltage board.

Remove the screw N attaching the power / fuse board.

FW201

CN251

Solder (from the power/ fuse board)

Power cord

Voltage selector

board

Fig.13

Power supply board

Solder

Tie band Power

transformer board

Power transformer

Power transformer board

Solder (from the voltage selector board)

Tie band

Solder

Power / fuse board

Unsolder the power cord and other harnesses connected to the power / fuse board.

Removing the power supply board

(See Fig.14 and 15)

Prior to performing the following procedure, remove the top cover and the front panel.

Remove the one nut attaching the headphone jack of the power supply board on the front side of the body.

Disconnect the harness connected to connector CN241,CN201,CN203 and CN291 on the power transformer board.

Remove the three screws O attaching the power

supply board and pull out the power supply board from the front bracket backward.

Unsolder the three harnesses connected to the

power supply board.

Power

supply

board

CN241

CN203 CN291

Hook

CN201

Fig.14

Power supply board

Headphone jack

Nut

Headphone jack

Solder

1-6

Solder

Fig.15

RX-6010VBK/ RX-6012VSL

Removing the system control board / power switch board (See Fig.16 to 18)

Prior to performing the following procedure, remove the top cover and the front panel assembly.

Pull out the volume knob on the front side of the front panel and remove the nut attaching the system control board.

Remove the two screws P attaching the power switch board.

Disconnect the harness from connector CN714 on the power switch board.

Remove the six screws Q attaching the system control board on the back of the front panel.

On the back of the front panel, release the eight joints by pushing the joint tabs inward. Remove the operation switch panel toward the front.

Release the two hook attaching the system control board.

Operation switch panel

Fig.16

Joint

Nut

Joint

Front panel assembly

Volume knob

Power switch

board

Joint

Hook

Joint

Fig.17

System control board

Fig.18

Hook

Joint

CN714

1-7

RX-6010VBK/ RX-6012VSL

Adjustment method

Tuner section

1.Tuner range FM 87.5MHz~108.0MHz AM(MW) 531kHz~1710kHz

Power amplifier section

Adjustment of idling current

Measurement location TP301(Lch) , TP302(Rch) Adjustment part VR301(Lch) , VR302(Rch)

Attention This adjustment does not obtain a correct adjustment value immediately after the amplifier is used (state that an internal temperature has risen). Please adjust immediately after using the amplifier after turning off the power supply of the amplifier and falling an internal temperature.

1.Set the volume control to minimum during this adjustment.(No signal & No load)

2.Set the surround mode OFF.

2.Turn VR301 and VR302 fully counterclockwise to warm up before adjustment. If the heat sink is already warm from previous use the correct adjustment can not be made.

3.For L-ch,connect a DC voltmeter between TP301's B216 and B217 (Lch) And,connect it between TP302's B218 and B219(Rch).

4.30 minutes later after power on, adjust VR301 for L-ch, or VR302 for R-ch so that the DC voltmeter value has 1mV~10mV.

* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable resistance (VR301,VR302) in the direction of counterclockwise.

TP302(Rch)

VR302 (Rch)

VR301 (Lch)

TP301(Lch)

Heat sink

1-8

+ 16 hidden pages