JVC RX-8010VBK Service Manual

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-8010VBK

CATV/DBS VCR 1 TV AUDIO

POWER POWER

POWER

DVD MUILTIDVD

FM/AM

CDR

TV/DBS VIDEO PHONO

TAPE/MD

VCR 1 VCR 2

SURROUND

LINE DIF.ECT BOOST EFFECT

MIDNIGHT

MODE

SOUND

MUTING

CATV/DBS CONTROL

TV/VIDEO

TEXT

DISPLAY

REC

PAUSE

ANALOG/DIGITAL

DSP

MODE INPUTON/OFF

231

TEST CTR TONE

564

SUBWFR

L/R BAL∗CENTER

∗

7/P

REAR L ∗REAR R

DIGITAL EQ

∗

0 +1010

RETURN FM MODE 1 00

BAL L

∗

+−+−+

CH/

LEVELTV VOL

∗

BAL R

∗

PLAY

/REW

PAUSE SET

DOWN – TUNING – UP

STOP

RM-SRX8010J

A/V CONTROL RECEIVER

ENTER

USB

SLEEP

ROOMBASS

SIZE

LIVENESS

VOLUME

EXIT

FF/

CONTROL

Contents

Area Suffix

J U.S.A.

RX-8010V

FM/AM TUNING FM/AM PRESET FM MODE

STANDBY

POWER

DIGITAL

−

SPEAKERS ON/OFF

SUBWOOFER OUT ON/OFF

PHONES

SURROUND

SURROUND ON/OFF

USB AUDIO

DIGITAL

S-VIDEO VIDEO

MEMORY

INPUT

ANALOG/DIGITAL

INPUT ATT

VIDEO

MIDNIGHT MODEDSP MODE

L—AUDIO—R

AUDIO/VIDEO CONTROL RECEIVER

SOUCE NAME

TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI

SOUCE NAME

FM / AMUSB AUDIOTAPE / MDCDRCDPHONO

DIGITAL

EFFECT SETTING

CONTROL

DOWN UP

MASTER VOLUME

LEVEL ADJUST

LINE DIRECT

BASS BOOST

DIGITAL

Safety precautions --------------------------------------------------------1-2 Importance administering point on the safety --------------------- 1-3 Disassembly method -----------------------------------------------------1-4 Adjustment method -------------------------------------------------------1-10 Self-diagnose function ----------------------------------------------------1-11 Description of major ICs -------------------------------------------------1-13

No.20921

Mar. 2001

RX-8010VBK

1. This design of this product contains special hardware and man y 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. Alter ations of the design or circuitry 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 further 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 parts 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.

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

Move the resistor connection to eachexposed 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.).

0.15 F AC TYPE

1500 10W

Place this probe on each exposed metal part.

This corresponds to 0.5 mA AC (r.m.s.).

Good earth ground

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 must 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.

1-2

Importance administering point on the safety

131

PW17

PW20

B3141

B3143

B3142

FC1

6.3A-125V

R61

132

PW19

PW26

PW18

B3148

B3151

B3150

B3152

PW30

TA1

B3147

B3145

B3146

B3144

FC2

B3149

TA2

113

112

111

123

B3191

B3192

LVA10222-A6

RY63

RY62

RX-8010VBK

CN55

D67

CN56

CN811

EP1

122

LVA10222-A3

FC62

FC64

2A-125V

FC61

FC63

121

134

133

Caution: For continued protection against risk of fire, replace only with same type 6.3A/125V for F201, 2A/125V for F202 and F203. This symbol specifies type of fast operating fuse.

Precaution: Pour eviter risques de feux, remplacez le fusible de surete de F201 comme le meme type que 6.3A/125V, et 2A/125V pour F202 et F203. Ce sont des fusibles suretes qui functionnes rapide.

1-3

RX-8010VBK

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 to 3)

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

Disconnect the card wire from connector CN400 on the audio board and CN402 on the power supply board in the front panel assembly.

Cut off the tie band fixing the harness.

Remove the three screws C attaching the front panel assembly and the screw a fixing a ground.

Top cover

Tie band

Main

board

CN400

Audio board

Fig.2

Fig.1

Front panel assembly

CN402

Power supply

board

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 thirty four screws E attaching the each boards to the rear panel on the back of the body.

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

Front panel assembly

Fig.3

EEE

Cord stopper

1-4

Rear panel

Fig.4

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

(See Fig.5 to 11)

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

Cut off the tie band fixing the harness.

Disconnect the connect CN501, CN243, CN205, CN381, CN361 on the DVD board.

Disconnect the harness from connector CN721, CN722 and CN723.

Disconnect the tuner board and audio board from connector CN101 and CN301 on the audio board.

Pull out the video audio board, video board, S-video board.

Disconnect the DSP board from connector CN601 on the audio board.

CN361

CN381

CN723 CN731

CN732

CN205

CN243

Fig.5

CN721

RX-8010VBK

Tie band

CN501

CN722

CN303

CN201 CN241

Audio

board

CN416

Video audio

board

Video board

CN206

S Video

board

CN244

Tuner board

CN101

Fig.6

Fig.7

CN301

DVD board

Audio input

board

Fig.9

Fig.8

1-5

RX-8010VBK

Removing the audio board (See Fig.12 to 13)

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

Disconnect the harness from connector CN813 and CN814 on the main board.

Video audio

board

Main

board

CN814

Fig.10

Fig.11

CN813

Video board

CN601

Relay board

CN71

S Video

board

DSP board

power supply board

Tie band

Disconnect the card wire from connector CN931 and CN932 on the audio board.

Cut off the tie band fixing the harness.

Disconnect the relay board from the audio board and the power supply board. (CN71,CN81)

Disconnect the card wire from connector CN831 on the main board.

Remove the three screws G attaching the audio board assembly.

Remove the screw H attaching the audio board assembly.

1-6

Audio board

CN831

CN931/ 932

Fig.12

Fig.13

CN81

Power transformer

Power / Fuse

board

Removing the main board (See Fig.14)

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

RX-8010VBK

Cut off the tie band fixing the harness.

Disconnect the harness from connector CN811 on the power supply board respectively.

Disconnect the harness from connector CN881 on the main board.

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

Removing the Heat sink (See Fig.15 to 16)

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.

J I

Main

board

Heat sink

CN881

Fig.14

Tie band

CN811

Main board

rear side

Fig.15

Fig.16

1-7

RX-8010VBK

Removing the power transformer

(See Fig.17)

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

Unsolder the two harnesses connected to the power transformer.

Disconnect the harness from connector CN55 and CN56 on the power transformer board.

Remove the four screws M attaching the power transformer.

Power transformer board

CN55 / 56

Power supply board

Power transformer

Removing the power / fuse board

(See Fig.17)

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

Remove the screw N attaching the power / fuse board.

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

Removing the power supply board

(See Fig.18 to 19)

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

Remove the screws b fixing a bonding ground.

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

Disconnect the card wire from connector CN402 on the power supply board.

Remove the three screws O attaching the power supply board and pull out the power supply board from the front bracket backward.

Power

supply

board

Solder

Power cord

Fig.17

Fig.18

Power supply

board

Solder

Power / fuse board

Headphone jack

Nut

Headphone jack

Unsolder the three harnesses connected to the power supply board.

1-8

CN402

Hook

Fig.19

Tie band

Solder

Removing the system control board / power switch board (See Fig.20 to 22)

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.

Remove the two screws Q attaching the switch board.

Remove the cords from the three hooks a.

Remove the eight screws R attaching the system control board on the back of the front panel.

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

Operation switch panel

Switch board

Fig.20

Front panel assembly

Nut

Volume knob

Cords

RX-8010VBK

Power switch

board

Disconnect the harness from connector CN420 and CN422 on the system control board.

Release the two hooks b attaching the system control board.

Joint

CN420

Joint

Hook b

Joint

Hook a

Fig.21

System control board

Hook b

Fig.22

Joint

CN422

Matters that require attention during replacement of IC400

In case where there is a resistance array: Both onetime IC and mask IC can be used

In case where there is no resistance array: Only mask IC can be used

Resistance array

1-9

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