JVC AV-32S565/Y, AV-32S575/Y, AV-32S585/Y Service Manual

SERVICE MANUAL

COLOR TELEVISION

YA09320046

AV-32S565 /Y, AV-32S575 AV-32S585

[AV-32S565] [AV-32S575]

[AV-32S585]

/Y,

BASIC CHASSIS

SC2

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41

No.YA093

2004/6

SPECIFICATION

Items

Dimensions ( W × H × D ) 87.7cm × 69.9cm × 56.5cm

(34-5/8" × 27-5/8" × 22-1/4") Mass 66.0 kg (145.2 lbs) 65.0 kg (143.1 lbs) TV RF System CCIR (M) Color System NTSC Sound System BTSC (Multi Channel Sound) Teletext System Closed caption (T1-T4 / CC1-CC4) TV Receiving Channels and Frequency

TV / CATV Total Channel 180 Channels Intermediate Frequency Video IF

Color Sub Carrier 3.58 MHz Power Input AC120V, 60Hz Power Consumption 215W

Picture Tube (Visible size) 80cm (32") (Diagonally), H: 49.6cm × W: 65.6cm (H: 19-5/8" × W: 25-7/8")

High Voltage 32kV(+1kV/-1.3kV) (at zero beam current)

Speaker 5cm × 12cm (2" × 4-3/4"),

Audio Power Output 7.5W + 7.5W 10W + 10W

Antenna terminal (VHF/UHF) F-type connector, 75Ω unbalanced, coaxial

Video / Audio input [INPUT-1/2/3/4]

Digital input Video/Audio

Audio output

Subwoofer output

Center channel input --- RCA pin jack × 1, 500mV(rms) (-4dBs), high impedance AV compulink III --- 3.5mm mini jack × 1 Remote Control Unit RM-C1257G (AA/R6/UM-3 battery × 2)

Design & specifications are subject to change without notice.

Component Video

VHF Low

VHF High

Sound IF

[INPUT-1/2]

1080i / 720p

480p / 480i

S-Video

[INPUT-1/3/4]

(Digital) ---

Audio (Anarog) --- RCA pin jack × 2, 500mV(rms) (-4dBs), high impedance

Variable

02ch to 06ch : 54MHz to 88MHz

07ch to 13ch : 174MHz to 216MHz

UHF

14ch to 69ch : 470MHz to 806MHz

CATV

54MHz to 804MHz

Low Band : 02 to 06, A-8 by 02 to 06&01

High Band : 07 to 13 by 07 to 13

Mid Band : A to I by 14 to 22

Super Band : J to W by 23 to 36

Hyper Band : W+1 to W+28 by 37 to 64

Ultra Band : W+29 to W+84 by 65 to 94, 100 to 125

Sub Mid Band : A4 to A1 by 96 to 99

45.75 MHz

41.25 MHz (4.5MHz)

Oval type × 2

RCA pin jack × 6

Y : 1V (p-p) (Sync signal: 0.35V(p-p), 3-value sync.), 75 Ω

Pb/Pr : ±0.35V(p-p), 75 Ω

Y : 1V (p-p), Positive (Negative sync provided), 75 Ω

Cb/Cr : ±0.7V(p-p), 75 Ω

Mini-DIN 4 pin × 3

Y: 1V (p-p), Positive (Negative sync provided), 75 Ω

C: 0.286V (p-p) (Burst signal), 75 Ω

Video

1V (p-p), Positive (Negative sync provided), 75 Ω, RCA pin jack × 4

Audio

500mV (rms), High impedance, RCA pin jack × 8

RCA pin jack × 2

More than 0 to 1000mV (rms) (+2.2dBs) [AV-32S575 / AV-32S585]

Fix

500mV(rms), (-4dBs), low impedance (400Hz when modulated 100%)

AV-32S565 AV-32S575 AV-32S585

93.9cm × 68.5cm × 57.0cm (37" × 27" × 22-1/2")

6.5cm × 13cm (2-1/2" × 5"), Oval type × 2

HDMI jack × 1

(Digital-input terminal is not compatible with picture signals of computer signal)

RCA pin jack × 1

---

More than 0 to 1000mV (rms) (+2.2dBs), low impedance (100Hz when modulated 100%)

Contents

1-2 (No.YA093)

SECTION 1

PRECAUTION

1.1 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) Use isolation transformer when hot chassis.

The chassis and any sub-chassis contained in some products are connected to one side of the AC power line. An isolation transformer of adequate capacity should be inserted between the product and the AC power supply point while performing any service on some products when the HOT chassis is exposed.

(5) Don't short between the LIVE side ground and ISOLATED (NEU-

TRAL) 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 the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time with a measuring apparatus (oscilloscope etc.). If above note will not be kept, a fuse or any parts will be broken.

(6) If any repair has been made to the chassis, it is recommended that

the B1 setting should be checked or adjusted (See B1 POWER SUPPLY check).

(7) 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.

(8) 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

(9) 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.

Ω 2W resistor to the anode button.

(10) 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, screw heads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

a) 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 1100V AC (r.m.s.) for a period of one second.

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

ed 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.

b) 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 following manner. Connect a 1500 a 0.15

µF AC-type capacitor between an exposed metal part

Ω per volt or more sensitivity in the

Ω 10W resistor paralleled by

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.).

AC VOLTMETER (HAVING 1000 /V, OR MORE SENSITIVITY)

0.15 F AC-TYPE

PLACE THIS PROBE

1500 10W

(11) High voltage hold down circuit check.

GOOD EARTH GROUND

ON EACH EXPOSED ME TAL PAR T

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".

This mark shows a fast operating fuse, the letters indicated below show the rating.

A V

POWER CORD REPLACEMENT WARNING.

Connecting the white line side of power cord to "WHT" character side.

PWB

White line side

WHT

(No.YA093)1-3

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

D.I.S.T. (Digital Image Scaling Technology)

This system uses line interpolation to double the number of scanning lines and achieve high resolution, flicker-free picture.

SMART CAPTION [AV-32S585]

Smart caption will appear when you press the MUTING button, only on channels where the broadcast contains CLOSED CAPTION information.

SMART SOUND [AV-32S575 / AV-32S585]

Decreases high sound levels, giving a regulated sound level.

FLAT SQUARE CRT

It became legible from any position by CRT with few reflection and reflect lumps on the flat screen.

DIGITAL COMB FILTER

By the 3D digital comb filter, the refreshed image can be seen.

VIDEO STATUS

Expression of a favorite screen can be chosen by the VIDEO STATUS function.

[STANDARD ↔ DYNAMIC ↔ THEATER ↔ GAME]

DIGAITAL INPUT [AV-32S575 / AV-32S585]

Digital-in will display when any picture signal (480i/ 480p, 720p/ 1080i) in Digital-in is displayed.

V-CHIP

Since the V-CHIP is built in, it can choose, view and listen to a healthy program.

MTS STEREO

The voice multiplex function of the MTS system is built in. (MTS = Multi channel Television Sound system)

NATURAL CINEMA

Watching the movie or animation, press the Natural Cinema to adjust the out line of the images to make thin more sharp.

BBE [AV-32S575 / AV-32S585]

High definition audio adds natural, clear and extraordinary sound quality to any program.

VIDEO INPUT LABEL [AV-32S565 / AV-32S575]

This function is used to label video input connections for the onscreen displays.

A.H.S. [AV-32S575 / AV-32S585]

Adds a more spacious surround sound. Music gives basic effect and Movie for more effect.

HYPER SURROUND [AV-32S565]

Creates a deep, three-dimensional sound effect by channeling the audio through the TV's front-firing speakers.

2.2 MAIN DIFFERENCE LIST

Item AV-32S565 AV-32S575 AV-32S585

FRONT CABINET COLOR SILVER ← SILVER / GRAY POWER LED GREEN BLUE ← BBE NO YES ← SURROUND HYPER SURROUND A.H.S ← SMART SOUND NO YES ← SMART CAPTION NO ← YES CHANNEL LABEL YES ← NO VIDEO INPUT LABEL YES ← NO XDS ID DISPLAY NO YES ← INTERACTIVE PLUG IN MENU NO YES ← CENTER CHANNEL INPUT NO YES ← SUBWOOFER OUTPUT NO YES ← AUDIO OUTPUT FIX VARIABLE / FIX ← DIGITAL INPUT NO YES (HDMI) ← AV COMPULINK III NO ← YES

1-4 (No.YA093)

2.3 TECHNICAL INFORMATION

2.3.1 MAIN MICRO COMPUTER (CPU) FUNCTION

Pin No. Pin name I/O Function Pin No. Pin name I/O Function

1 BS_RXD - Not used 43 P74 - Not used

2 /MICON_V I V. sync for OSD 44 ON_TIM - Not used

3 LB_PRO I Low B protect detection [Detect: H] 45 SBO0 - Not used

4 NC - Not used 46 SBD0 - Not used

5 /RST I CPU reset [Reset: L] 47 SBT1 I Use for on board writing [for factory]

FORMAT_EDGE

7 /TEST O Operation test for CPU 49 SRQ - Not used

8 OSD_YS I Ys (blanking) for OSD 50 BS1.5CTL - Not used

9 SDA4 I/O Data for Inter IC control (for DIST) 51 EE_ABL - Not used

10 SYNCSEL O Not used 52 ABL/ACL O ABL/ACL control

11 A_MU O Audio muting [Muting: H] 53 CHROMA I Not used

12 /MICON_H O H. sync for OSD 54 DC_COTL I Black level DC reproduce control

13 M_MU O NC 55 FMT1 - Not used

14 OSDXI O Keep for OSD oscillation 56 FMT2 - Not used

15 OSDXO O Keep for OSD oscillation 57 AFC_1 I Sub AFT voltage

16 SDA2 I/O Data for Inter IC control (for MTS) 58 /LOB_POW O Low B power control [Power on: L]

17 AC_IN I AC(60Hz) for timer clock 59 COMPLINK I/O AV compulink lll control

18 SCL2 O Clock for Inter IC control (for MTS) 60 /POWERGOOD I Power condition check

19 TU_POW - Not used 61 /MECA_ON O Power SW interrupt [Pushing:L]

20 VCOI I LPF 62 /MAIN_POW I Main power control [Power on: L]

21 PDO I LPF 63 NC - Not used

22 /IP_RESET I Reset for DIST [Reset: L] 64 /B1_POW O B1 power control [Power on: L]

23 OSD_YM I YM (transparence) for OSD 65 C/N I Main AFT voltage

24 OSD_B O Blue for OSD 66 X_RAY_M I X-ray protect detection [Protect: 0.7V]

25 POWER_LED O Lighting for POWER LED [Lighting: H] 67 EE_CDS - Not used

26 OSD_G O Green for OSD 68 KEY2 I/O Key scan for front key (CH+ Vol-/+)

27 OSD_R O Red for OSD 69 KEY1 O Key scan for front key (Menu CH-)

28 VREF I Reference voltage for OSD 70 SCL1 O Clock for Inter IC control (for Memory)

29 IP_ERR I

30 IREF O Reference current for OSD 72 REMO I Remote control [No input: H]

31 COMP O Phase adjust for OSD 73 POW_DET - Not used

32 AVDD I +3.3V 74 VSS - GND

33 CLL O For low clamp level 75 OSC2 O System clock oscillation (4MHz)

34 VREFLS I Reference voltage in for sub CCD 76 OSC1 I System clock oscillation (4MHz)

35 SUB_CCD I Composite video for sub CCD 77 VDD I +3.3V

36 NC - Not used 78 SCL0 O Clock for Inter IC control (for Generally)

37 VSS - GND 79 VOUTENB - Not used

38 MAIN_CCD O Composite video for main CCD 80 SDA0 I/O Data for Inter IC control (for Generally)

39 VREFHS O Reference voltage for main CCD 81 P57 - Not used

40 CLH O For high clamp level 82 BS_TXD - Not used

41 VDD/VPP I +3.3V 83 BS_TXD - Not used

42 SCL4 O Clock for Inter IC control (for DIST) 84 P_MUTE O Picture muting [Muting: H]

O NC 48 TS_PC_DET - Not used

AMDP program load error detection [Detect: L ]

71 SDA1 I/O Data for Inter IC control (for Memory)

(No.YA093)1-5

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE [AV-32S565]

3.1.1 REMOVING THE REAR COVER

• Unplug the power plug. (1) Remove the 14 screws [A] as shown in Fig.2. (2) Remove the REAR COVER toward you.

NOTE:

When reinstalling the REAR COVER, carefully push it inward after inserting the chassis into the REAR COVER groove.

3.1.2 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 2 screws [C] as shown in Fig.2, then remove

the SPEAKER HOLDER.

(2) Remove the 2 screws [D] as shown in Fig.2, then remove

the SPEAKER.

(3) Follow the same steps when removing the other hand

SPEAKER.

3.1.5 REMOVING THE CONTROL BASE

• Remove the REAR COVER. Remove the CHASSIS. (1) While pushing down the claws [b] as shown in Fig.1. (2) Remove the CONTROL BASE in the arrow direction

marked [c]. ( If necessary, remove the wire clamps, connectors etc. )

CLAW

CHASSIS BASE

Fig.1

CONTROL BASE

3.1.3 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove the 3 screws [B] as shown in Fig.2. (2) Withdraw the AV TERMINAL BOARD toward you.

3.1.4 REMOVING THE CHASSIS

• Remove the REAR COVER. (1) Slightly raise the both sides of the CHASSIS by hand and

remove the 2 claws under the both sides of the CHASSIS from the front cabinet.

(2) Withdraw the CHASSIS backward.

(If necessary, remove the wire clamps, connectors etc.)

3.1.6 CHECKING THE PW BOARD

• To check the PW Board from backsid. (1) Pull out the CHASSIS. (Refer to REMOVING THE

CHASSIS).

(2) Erect the CHASSIS vertically with the HVT side facing up

so that you can easily check the back side of the PW Board.

CAUTION:

• When erecting the CHASSIS, be careful so that there will be

no contact with other PWB.

• Before turning the power on, make sure that the CRT earth

wire and other connectors are properly connected.

3.1.7 WIRE CLAMPING AND CABLE TYING

(1) Be sure to clamp the wire. (2) Never remove the cable tie used for tying the wires

together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.

1-6 (No.YA093)

FRONT CABINET

WASHER

SPACER

FRONT SW PWB

CONTROL BASE

LINE FILTER PWB

Fig.1

CLAW

CRT SOCKET PWB

MAIN PWB

SPEAKER

WASHER

SPACER

FRONT CONTROL PWB

MI-COM & DIST MODULE PWB

DEF OSC PWB

DEF & POWER PWB

CLAW

RECEIVER PWB

POWER CORD

SPEAKER HOLDER

HVT

CHASSIS

AV TERMINAL BOARD

REAR COVER

Fig.2

(No.YA093)1-7

3.2 DISASSEMBLY PROCEDURE [AV-32S575 / AV-32S585]

3.2.1 REMOVING THE REAR COVER

• Unplug the power plug. (1) Remove the 13 screws [A] as shown in Fig.4. (2) Remove the REAR COVER toward you.

NOTE:

When reinstalling the REAR COVER, carefully push it inward after inserting the chassis into the REAR COVER groove.

3.2.2 REMOVING THE SPEAKER

• Remove the REAR COVER. (1) Remove the 2 screws [D] as shown in Fig.4, then remove

the SPEAKER toward you.

(2) Follow the same steps when removing the other hand

SPEAKER.

3.2.3 REMOVING THE AV TERMINAL BOARD

• Remove the REAR COVER. (1) Remove the 4 screws [B] and 1 screw [C] as shown in

Fig.4.

(2) Withdraw the AV TERMINAL BOARD toward you.

3.2.4 REMOVING THE CHASSIS

• Remove the REAR COVER. (1) Slightly raise the both sides of the CHASSIS by hand and

remove the 2 claws under the both sides of the CHASSIS from the front cabinet.

(2) Withdraw the CHASSIS backward.

(If necessary, remove the wire clamps, connectors etc.)

3.2.6 REMOVING THE DIGITAL INPUT MODULE PWB

• Remove the REAR COVER

• Remove the AV TERMINAL BOARD. (1) Remove the 1 screw [F] and 1 screw [G] as shown in Fig.4. (2) Remove the DIGITAL INPUT MODULE PWB.

NOTE:

If necessary, take off the wire clamps, connectors etc.

CAUTION AT DISASSEMBLY

AV TERMINAL BOARD

DIGITAL INPUT MODULE PWB

2 4

3 5

SB connector

• Prior to disassembly, unplug the power plug from the AC outlet without fail. (Turn the power "off".)

• Short the SB connector [1] pin and [2] pin of the DIGITAL INPUT MODULE PWB. (At the time of assembling)

• Before the rear cover is inserted into the cabinet, release the short-circuit between the SB connector [1] pin and [2] pin of the DIGITAL INPUT MODULE PWB.

• After releasing the short-circuit between the SB connectors, do not turn the power on until the rear cover is inserted into the cabinet.

• Negligence in carrying out the above steps may cause the inactivation of the TV.

3.2.5 REMOVING THE CONTROL BASE

• Remove the REAR COVER. Remove the CHASSIS. (1) While pushing down the claws [b] as shown in Fig.3. (2) Remove the CONTROL BASE in the arrow direction

marked [c]. ( If necessary, remove the wire clamps, connectors etc. )

CLAW

CHASSIS BASE

CONTROL BASE

Fig.3

3.2.7 CHECKING THE PW BOARD

• To check the PW Board from backsid. (1) Pull out the CHASSIS. (Refer to REMOVING THE

CHASSIS).

(2) Erect the CHASSIS vertically with the HVT side facing up

so that you can easily check the back side of the PW Board.

CAUTION:

• When erecting the CHASSIS, be careful so that there will be

no contact with other PWB.

• Before turning the power on, make sure that the CRT earth

wire and other connectors are properly connected.

3.2.8 WIRE CLAMPING AND CABLE TYING

(1) Be sure to clamp the wire. (2) Never remove the cable tie used for tying the wires

together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.

1-8 (No.YA093)

FRONT CABINET

SPEAKER

CRT SOCKET PWB

FRONT CONTROL PWB

MI-COM & DIST MODULE PWB

DEF OSC PWB

CLAW

DEF & POWER PWB

HVT

CHASSIS

FRONT SW PWB

CONTROL BASE

LINE FILTER PWB

REAR COVER

Fig.3

CLAW

MAIN PWB

RECEIVER PWB

POWER CORD

DIGITAL INPUT MODULE PWB

AV TERMINAL BOARD

Fig.4

(No.YA093)1-9

3.2.9 REMOVING THE CRT

NOTE:

• Replacement of the CRT should be performed by 2 or more persons.

• After removing the REAR COVER, CHASSIS etc.,

(1) Putting the CRT change table on soft cloth, the CRT

change table should also be covered with such soft cloth (shown in Fig. 3).

(2) While keeping the surface of CRT down, mount the TV set

on the CRT change table balanced will as shown in Fig. 3.

(3) Remove 4 screws marked by arrows with a box type

screwdriver as shown in Fig. 4.

NOTE:

Since the cabinet will drop when screws have been removed, be sure to support the cabinet with hands.

(4) After 4 screws have been removed, put the cabinet slowly

on cloth (At this time, be carefully so as not to damage the front surface of the cabinet) shown in Fig. 5.

NOTE:

• The CRT should be assembled according to the opposite sequence of its dismounting steps.

• The CRT change table should preferably be smaller that the CRT surface, and its height be about 35cm.

CRT CHANGE TABLE

CLOTH

CRT CHANGE TABLE

Fig.3

CRT

APPROX. 35cm

BOX TYPE SCREW DRIVER

CAUTION FOR DEGAUSSING WORKS

Fig.4

Whenever degaussing works are required due to distorted images and colors caused by the replacement of the CRT or other external magnetic forces, self-

CRT

degaussing (internal degaussing) should be carried out without fail instead of degaussing the monitor from the outside. Because of the characteristics of the CRT used in this monitor , the distorted images and colors may worsen if degaussing the monitor from the outside has been performed. Even if external degaussing works have been carried out, self-degaussing should be performed by turning the power on the monitor. When you want to perform self-degaussing of the monitor

CABINET

Fig.5

CRT CHANGE TABLE

whose power is already turned on, turn of f the power and wait for about 10 minutes before turning the power on the monitor again for self-degaussing.

COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.

Subsequent to replacement of the CRT and HV transformer or repair of the anode cap, etc. by dismounting them, be sure to coat silicon grease for electrical insulation as shown in Fig.6.Wipe around the anode button with clean and dry cloth. (Fig.6)Coat silicon grease on the section around the anode button. At this time, take care so that any silicon greases dose not sticks to the anode button. (Fig.7)

Silicon grease product No. KS - 650N

CRT

Anode button

Approx. 20mm (Do not coat grease on this section

Silicon grease should be coated by 5mm or more from the outside diameter of anode cap.

1-10 (No.YA093)

Silicon grease

coating

Anode button (No sticking of silicon grease)

Fig.6 Fig.7

Coating position of silicon grease

Anode cap

3.3 MEMORY IC REPLACEMENT

• This model uses the memory IC.

• This memory IC stores data for proper operation of the video and drive circuits.

• When replacing, be sure to use an IC containing this (initial value) data.

3.3.1 MEMORY IC REPLACEMENT PROCEDURE

1. POWER OFF

Switch off the power and disconnect the power plug.

2. REPLACE THE MEMORY IC

Be sure to use the memory IC written with the initial setting values.

3. POWER ON

Connect the power plug to the AC outlet and switch on the power.

4. RECEIVING CHANNEL SETTING

Refer to the OPERATING INSTRUCTIONS and set the receive channels (Channels Preset) as described.

5. USER SETTING

Check the user setting items according to the given in page later. Where these do not agree, refer to the OPERATING INSTRUCTIONS and set the items as described.

6. SERVICE MODE SETTING

Verify what to set in the SERVICE MODE, and set whatever is necessary. Refer to the INITIAL SETTING VALUE OF SERVICE MODE.

3.3.2 SERVICE ADJUSTMENT ITEM

SERVICE MODE MAIN MENU

1.PICTURE/SOUND

2.YC SEP

3.WHITE BALANCE

4.MEMORY SETUP

5.RF AFC

8.IP

9.DSD

0.HDMI

Setting items Settings Item No.

1. PICTURE/SOUND (Video / Audio setting)

Audio circuits (A) Adjust A01 to A27

Video circuits (S) Adjust S01 to S99

Deflection circuits (D) Adjust D01 to D32

Factory setting items (F) Fixed F01 to F70

2. YC SEP (3D YC separation setting) [Do not adjust]

Fixed YCM001 to YCM185

Fixed YCS001 to YCS018

3.WHITE BALANCE (White balance adjustment)

BR DRV R

Adjust

DRV B CUT R CUT G CUT B

4.MEMORY SETUP (Memory data edit) [Do not adjust]

5.RF AFC (AFC setting) [Do not adjust]

Fixed ---

8.IP (DIST processing setting) [Do not adjust]

Fixed IPA001 to IPA042

9.DSD (Digital super detail setting) [Do not adjust]

Fixed DSA001 to DSA053

Fixed DSB001 to DSB053

Fixed DSC001 to DSC044

Fixed DSD001 to DSD017

0.HDMI (Digital input processing setting) [Do not adjust]

Fixed HDM001 to HDM080

Fixed RHD001 to RHD170

(No.YA093)1-11

3.3.3 SETTINGS OF FACTORY SHIPMENT

3.3.3.1 BUTTON OPERATION

Setting item Setting position

POWER Off

CHANNEL CABLE-02

VOLUME 10

3.3.3.2 REMOTE CONTROL DIRECT OPERATION

Setting item Setting position

INPUT TV

CHANNEL CABLE-02

VOLUME (Normal) 10

VOLUME (Center CH in mode) 10 [AV-32S575/AV-32S585]

MUTING OFF

DISPLAY OFF

ASPECT 4:3

OFF TIMER OFF

THEATER PRO OFF

VIDEO STATUS DYNAMIC

CLOSED CAPTION OFF

SOUND A.H.S OFF [AV-32S575/AV-32S585]

HYPER SORROUND OFF [AV-32S565]

BBE ON [AV-32S575/AV-32S585]

SMART SOUND OFF [AV-32S575/AV-32S585]

PIP SELECT (SAUCE) VIDEO 1

TWIN (POSITION) Left bottom

4. PICTURE ADJUST

Customers can adjust the picture setting of menu screen as their own like but the picture standard value during factory shipment is as below.

< NTSC MODE >

Setting item PICTURE BRIGHT COLOR TINT DETAIL

STANDARD 00 00 00 00 00 LOW OFF ON DINAMIC +30000000+03HIGHOFFON THEATER -1000000000HIGHOFFON GAME 00 00 00 00 0 HIGH OFF ON

< HD MODE >

Setting item PICTURE BRIGHT COLOR TINT DETAIL

STANDARD 00 00 00 00 00 LOW OFF ON DINAMIC +3000000000HIGHOFFON THEATER -1000000000LOWOFFON GAME 00 00 00 00 00 HIGH OFF ON

3.3.3.3 REMOTE CONTROL MENU OPERATION

1. SOUND ADJUST

Setting item Setting position

BASS 00

TREBLE 00

BALANCE 00

MTS STEREO

2. CLOCK / TIMERS

Setting item Setting position

SET CLOCK OFF

ON / OFF TIMER OFF

3. INITIAL SETUP

Setting item Setting position

DIGITAL-IN

DIGITAL-AUDIO

CENTER CH INPUT OFF [AV-32S575/AV-32S585]

AUDIO OUT FIX [AV-32S575/AV-32S585]

TV SPEAKER ON

NOISE MUTING ON

FRONT PANEL LOCK OFF

V1 SMART INPUT OFF [AV-32S575/AV-32S585]

VIDEO INPUT LABEL All blank

LANGUAGE ENG.

CLOSED CAPTION OFF (CC1,T1)

AUTO SHUT OFF OFF

TILT CORRECTION Center

V-CHIP OFF

XDS ID ON [AV-32S575/AV-32S585]

AUTO DEMO OFF

TEMPERATURE

SIZE 1 [AV-32S575/AV-32S585]

DIGITAL [AV-32S575/AV-32S585]

[AV-32S575/AV-32S585]

COLOR

DIG. NOISE

CLEAR

DIG. NOISE

CLEAR

VSM

1-12 (No.YA093)

3.4 REPLACEMENT OF CHIP COMPONENT

3.4.1 CAUTIONS

(1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it.

3.4.2 SOLDERING IRON

(1) Use a high insulation soldering iron with a thin pointed end of it. (2) A 30w soldering iron is recommended for easily removing parts.

3.4.3 REPLACEMENT STEPS

1. How to remove Chip parts

2. How to install Chip parts

[Resistors, capacitors, etc.]

(1) As shown in the figure, push the part with tweezers and al-

ternately melt the solder at each end.

(2) Shift with the tweezers and remove the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply extra solder to each lead.

SOLDER

[Resistors, capacitors, etc.]

(1) Apply solder to the pattern as indicated in the figure.

(2) Grasp the chip part with tweezers and place it on the sol-

der. Then heat and melt the solder at both ends of the chip part.

[Transistors, diodes, variable resistors, etc.]

(1) Apply solder to the pattern as indicated in the figure. (2) Grasp the chip part with tweezers and place it on the sol-

der.

(3) First solder lead A as indicated in the figure.

(2) As shown in the figure, push the part with tweezers and al-

ternately melt the solder at each lead. Shift and remove the chip part.

NOTE :

After removing the part, remove remaining solder from the pattern.

(4) Then solder leads B and C.

(No.YA093)1-13

+ 30 hidden pages