JVC AV-1413EE - Service Manual Immediate Download

No.51669

Jan. 2000

AV-A14M3

AV-A14T3

AV-A14AU3

AV-1413EE

AV-A14M3 / AV-A14T3

AV-A14M3(U) / AV-A14T3(HK)

AV-A14M3(-A)/ AV-A14T3(-A)

AV-1413EE / AV-A14AU3

CONTENTS

SPECIFICATIONS

OPERATING INSTRUCTIONS (APPENDIX)

1-1

SAFETY PRECAUTIONS

FEATURES

MODEL ID. / MAIN DIFFERENCE LIST

SPECIFIC SERVICE INSTRUCTIONS

SERVICE ADJUSTMENTS

STANDARD CIRCUIT DIAGRAM (APPENDIX)

2-1

PARTS LIST

SERVICE MANUAL

COLOUR TELEVISION

BASIC CHASSIS

No. 51669

AV-A14M3

AV-A14T3

AV-A14AU3

AV-1413EE

SPECIFICATIONS

Content

Item

AV-A14M3 / AV-A14M3(U) / AV-A14M3(-A)

AV-A14T3 / AV-A14T3(HK) / AV-1413EE

AV-A14T3(-A) / AV-A14AU3

Dimensions(W×H×D)

364mm×340.5mm×375mm

Mass

9.9kg

RF System

B / G, I, D / K, K1 & M

B / G, I, D / K, K1

Colour System

TV Mode

PAL / SECAM / NTSC

PAL / SECAM

VIDEO Mode

PAL / SECAM / NTSC3.58 / NTSC4.43

Receiving Frequency

VHF (VL)

46.25MHz168.25MHz

VHF (VH)

175.25MHz463.25MHz

UHF

471.25MHz863.25MHz

CATV

Cable TVs of Mid (X-Z, S1-S10) Super (S11-S20) & Hyper (S21-S41) bands receivable

Intermediate

Frequency

VIF Carrier

38.0MHz

SIF Carrier

32.5MHz(5.5MHz)

31.5MHz (6.5MHz)

32.0MHz (6.0MHz)

Colour Sub Carrier Frequency

PAL (4.43MHz)

SECAM (4.40625MHz / 4.25MHz)

NTSC (3.58MHz / 4.43MHz)

Aerial Input Terminal

75 Unbalanced

Power Input

Rated Voltage 110240VAC, 50 / 60Hz

Power Consumption

70W (Max.) / 47W (Avg.)

70W (0.6A)at 220VAC [for AV-A14T3(HK)]

Picture Tube

Visible size:34cm measured diagonally

High Voltage

22.5kV±1.5kV(at zero beam current)

Speaker

8cm, Round type

Audio Output

3W (monaural)

Input

Video

1Vp-p, 75, RCA×2

Audio

500mVrms (-4dBs), High impedance,

RCA×2

Output

Video

1Vp-p, 75, RCA×1

Audio

500mVrms (-4dBs), Low impedance,

RCA×1

Remote Control Unit

RM-C360 (Battery size : AA / R06 / UM-3×2)

Design & specifications are subject to change without notice.

No.51669

AV-A14M3

AV-A14T3

AV-A14AU3

AV-1413EE

SAFETY PRECAUTIONS

1. The design of this product contains special hardware, 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. Service should be performed by qualified personnel

only.

2. Alterations of the design or circuitry of the products should not be

made. Any design alterations or additions will void the

manufacturer's warranty and will further relieve the manufacturer

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 Service

manual. The use of a substitute replacement which does not

have the same safety characteristics as the recommended

replacement part shown in the parts list of Service manual may

cause shock, fire, or other hazards.

4. Don't short between the LIVE side ground and ISOLATED

(NEUTRAL) side ground or EARTH side ground when

repairing.

Some model's power circuit is partly different in the GND. The

difference of the GND is shown by the LIVE : ( ) side GND, the

ISOLATED(NEUTRAL) : ( ) side GND and EARTH : ( ) side

GND. Don't short between the LIVE side GND and

ISOLATED(NEUTRAL) side GND or EARTH side GND and

never measure with a measuring apparatus (oscilloscope etc.)

the LIVE side GND and ISOLATED(NEUTRAL) side GND or

EARTH side GND at the same time.

If above note will not be kept, a fuse or any parts will be broken.

5. If any repair has been made to the chassis, it is recommended

that the B1 setting should be checked or adjusted (See

ADJUSTMENT OF B1 POWER SUPPLY).

6. The high voltage applied to the picture tube must conform with

that specified in Service manual. Excessive high voltage can

cause an increase in X-Ray emission, arcing and possible

component damage, therefore operation under excessive high

voltage conditions should be kept to a minimum, or should be

prevented. If severe arcing occurs, remove the AC power

immediately and determine the cause by visual inspection

(incorrect installation, cracked or melted high voltage harness,

poor soldering, etc.). To maintain the proper minimum level of

soft X-Ray emission, components in the high voltage circuitry

including the picture tube must be the exact replacements or

alternatives approved by the manufacturer of the complete

product.

7. Do not check high voltage by drawing an arc. Use a high voltage

meter or a high voltage probe with a VTVM. Discharge the

picture tube before attempting meter connection, by connecting

a clip lead to the ground frame and connecting the other end of

the lead through a 10k 2W resistor to the anode button.

8. When service is required, observe the original lead dress. Extra

precaution should be given to assure correct lead dress in the

high voltage circuit area. Where a short circuit has occurred,

those components that indicate evidence of overheating should

be replaced. Always use the manufacturer's replacement

components.

9. Isolation Check

(Safety for Electrical Shock Hazard)

After re-assembling the product, always perform an isolation

check on the exposed metal parts of the cabinet (antenna

terminals, video/audio input and output terminals, Control knobs,

metal cabinet, screwheads, earphone jack, control shafts, etc.)

to be sure the product is safe to operate without danger of

electrical shock.

(1) Dielectric Strength Test

The isolation between the AC primary circuit and all metal parts

exposed to the user, particularly any exposed metal part having a

return path to the chassis should withstand a voltage of 3000V

AC (r.m.s.) for a period of one second.

(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance

rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated

200V or more, for a period of one second.)

This method of test requires a test equipment not generally found

in the service trade.

(2) Leakage Current Check

Plug the AC line cord directly into the AC outlet (do not use a line

isolation transformer during this check.). Using a "Leakage

Current Tester", measure the leakage current from each exposed

metal part of the cabinet, particularly any exposed metal part

having a return path to the chassis, to a known good earth

ground (water pipe, etc.). Any leakage current must not exceed

0.5mA AC (r.m.s.).

However, in tropical area, this must not exceed 0.2mA AC

(r.m.s.).

Alternate Check Method

Plug the AC line cord directly into the AC outlet (do not use a line

isolation transformer during this check.). Use an AC voltmeter

having 1000 ohms per volt or more sensitivity in the following

manner. Connect a 1500

10W resistor paralleled by a 0.15 F

AC-type capacitor between an exposed metal part and a known

good earth ground (water pipe, etc.). 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 measure the

AC voltage across the resistor. Now, reverse the plug in the AC

outlet and repeat each measurement. Any voltage measured

must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA

AC (r.m.s.).

However, in tropical area, this must not exceed 0.3V AC (r.m.s.).

This corresponds to 0.2mA AC (r.m.s.).

0.15F AC-TYPE

1500

10W

GOOD EARTH GROUND

PLACE THIS PROBE

ON EACH EXPOSED

METAL PART

AC VOLTMETER

(HAVING 1000

/V,

OR MORE SENSITIVITY)

11. High voltage hold down circuit check.

For AV-A14M3(U)

After repair of the high voltage hold down circuit, this circuit shall

be checked to operate correctly.

See item "How to check the high voltage hold down circuit".

No. 51669

AV-A14M3

AV-A14T3

AV-A14AU3

AV-1413EE

FEATURES

New chassis design enables use of an interactive on-screen control.

Wide range voltage (110V240V) AC power input.

With AUDIO / VIDEO INPUT & OUTPUT terminal.

MUTING button can reduce the audio level to zero instantly.

Functional remote control to operate TV set (for channel select, volume control, power ON/OFF, etc.) from a distance.

I2C bus control utilizes single chip ICs for IF, V/C, DEF. VSM PRESET, PRESET & TURBO TIMER.

By means of AUTO PROGRAM, the TV stations can be selected automatically and the TV channels can also be rearranged automatically.

Built -in ON TIMER, RETURN+ & CHILD LOCK.

SYSTEM BLOCK DIAGRAM

REMOCON

KEY

FUNCTION

CPU

I2C SCL0 38

SDA0 37

E2 P ROM

SCL SDA

6,7

I2C SCL1 3

SDA1 2

EXT I2C

control connector

SCL

SDA

V/C/J

(with EEP ROM)

SCL

SDA

TUNER

No. 51669

AV-A14M3

AV-A14T3

AV-A14AU3

AV-1413EE

MODEL ID.(IDENTIFICATION) / MAIN DIFFERENCE LIST

MAIN DIFFERENCE LIST

Ref.

No.

MODEL No.

Parts Name

AV-A14M3

AV-A14M3(-A)

AV-A14AU3

AV-A14T3

MAIN PWB

SCG-1003A-H2

POWER CORD

QMP40D0-200J5

QMPR010-200-E2

QMP2980-185J5

QMP40D0-200J5

FRONT CABINET

LC10164-012A-H

LC10164-014A-H

LC10164-015A-H

RATING LABEL

LC20377-001A-H

LC20413-002A-H

LC20377-013A-H

LC20377-010A-H

INST. BOOK

LCT0650-001A-H

DIGEST MANUAL

LCT0651-001A-H

LCT0653-001A-H

LCT0652-001A-H

PACKING CASE

CP11781-084-H

CP11781-095-H

CP11781-079-H

WARRANTY CARD

BT-56001-2

POS, SERIAL LABEL

CM47385-00B-H

SERVICE CENTER LIST

BT-56002-2

POWER KNOB

LC30348-001B-H

LC30348-002A-H

LC30348-001B-H

CONTROL KNOB

LC30347-001C-H

LC30347-002A-H

LC30347-001C-H

CONVERSION PLUG

QAM0055-001

REC KEEPING CARD

Ref.

No.

MODEL No.

Parts Name

AV-A14T3(-A)

AV-A14M3(U)

AV-A14T3(HK)

AV-1413EE

MAIN PWB

SCG-1003A-H2

SCG-1220A-H2

SCG-1222A-H2

POWER CORD

QMPR010-200-E2

QMP40D0-200J5

QMPN050-200-E2

QMP40D0-200J5

FRONT CABINET

LC10164-015A-H

LC10164-013A-H

LC10164-017A-H

LC10164-016A-H

RATING LABEL

LC20413-002A-H

LC20413-003A-H

LC20377-012A-H

LC20377-009A-H

INST. BOOK

LCT0650-001A-H

LCT0648-001A-H

LCT0647-001A-H

DIGEST MANUAL

LCT0653-001A-H

LCT0651-001A-H

PACKING CASE

CP11781-074-H

CP11781-084-H

CP11781-074-H

CP11781-075-H

WARRANTY CARD

BT-54012-1

POS, SERIAL LABEL

CM47385-00B-H

SERVICE CENTER LIST

POWER KNOB

LC30348-001B-H

CONTROL KNOB

LC30347-001C-H

CONVERSION PLUG

QAM0055-001

REC KEEPING CARD

CP30702-001