JVC AV-61S902(CA), AV-61S902(US) Service Manual



PROPERLY

SERVICE MANUAL



PROJECTION TELEVISION

AV-61S902

CD-ROM : No.SML200107

(US) / (CA)

AV-61S902

BASIC CHASSIS

CONTENTS

! SPECIFICATIONS････････････････････････････････ ! SAFETY PRECAUTIONS････････････････････････････････ ! SPECIFIC SERVICE INSTRUCTIONS････････････････････････････････ ! SERVICE ADJUSTMENTS ････････････････････････････････ ! PARTS LIST････････････････････････････････

★ OPERATING INSTRUCTIONS ★ STANDARD CIRCUIT DIAGRAM (APPENDED) ････････････････････････････････

････････････････････････････････････････････････････････････････

･･････････････････････････････････････････････････････････

････････････････････････････････････････････････････････････････

･･･････････････････････････････････････････････

････････････････････････････････････････････････････････････････

･･･････････････････････････････････････････････････････

････････････････････････････････････････････････････････････････

･･････････････････････････････････････

････････････････････････････････････････････････････････････････

････････････････････････････････ 1-2

････････････････････････････････････････････････････････････････

･･････････････････････････ 1-3

････････････････････････････････････････････････････

･･･････････････ 1-4

･･････････････････････････････

･･･････････････････････ 1-17

･･････････････････････････････････････････････

･････････････････････････････････････

････････････････････････････････････････････････････････････････

･････ 3-1

･･････････

･･････ 2-1

････････････

No.51775B

Jul. 2001

V-61S902

SPECIFICATIONS

Items Contents

Dimensions (W××××H××××D) 145.1cm × 150.8cm × 62.9cm (57-1/4” × 59-3/8” × 24-7/8”) Mass 117kg (258 lbs)

TV System and Color system

TV RF System

Color System

Sound System

TV Receiving Channels and Frequency

VL Band

VH Band

UHF Band

CATV Receiving Channels and Frequency

Low Band

High Band

Mid Band Super Band Hyper Band

Ultra Band

Sub Mid Band

TV/CATV Total Channel Power Input AC 120V, 60Hz Power Consumption 430W Projection System D-ILA Hologram device 1.22” (1280 × 1028 × 3 pixels) Light Source Lamp 200W UHP (Ultra High-Pressure mercury) lamp Screen Transparent screen (united Fresnel lens & Double lenticular lens), aspect ratio 16:9 Screen Size 61-inch (155cm) : measured diagonally [W: 135.1cm × H: 76cm] Speaker Main (full range) : 10cm (3-15/16”) Round type ×2

Audio Power Output Main (full range) : 5W+5W

Antenna terminal (75ΩΩΩΩ VHF/UHF) [INPUT A / INPUT B / SPLIT OUT] Input (INPUT 1 / 2 / 3 / 4 / 5)

Video

Audio (L/R)

S-Video

Component-Video

[INPUT 2 / 3]

Digital Input (INPUT-5) DVI (Digital Visual Interface) 25-pin connector ×1 Output (LINE OUT)

Video

Audio (L/R)

S-Video

Audio Output (FRONT / SURROUND REAR) [FRONT = Variable / Fix : Selectable] [SURROUND REAR = Fix only] AV COMPULINK EX Input 3.5mm mini jack (Monaural type) Remote Control Unit RM-C308 (Dry cell battery : AA/R6/UM-3 ×2) Option Lamp unit [PK-CL200U]

Design & specification are subject to c hange without not ic e.

1-2

✻ 1080i DTV (digital broadcast) ready

CCIR M NTSC BTSC (Multi Channel Sound)

02 ~ 06 : 54MHz ~ 88MHz 07 ~ 13 : 174MHz ~ 216MHz 14 ~ 69 : 470MHz ~ 806MHz

54MHz ~ 806MHz

02 ~ 06, A-8 (by 02 ~ 06 & 01) 07 ~ 13 (by 07 ~ 13) A ~ 1 (by 14 ~ 22) J ~ W (by 23 ~ 36) W+1 ~ W+28 (by 37 ~ 64) W+29 ~ W+84 (by 65 ~ 125) A8, A4 ~ A1 (by 01, 96 ~ 99) 181 Channels

Bass (sub woofer) : 16cm (6-3/10“) Round type ×2

Bass (sub woofer) : 10W+10W

✻ SPLIT OUT : for CATV box connection 75Ω, F-type connector ×3 ✻ INPUT-5 : Audio (L/R) only 1V(p-p), 75Ω RCA pin jack ×4 500mV(rms) (-4dBs), high impedance RCA pin jack ×10 mini-DIN 4-pin connector ×4

Y : 1V(p-p) positive, 75Ω (negative sync. provided) C : 0.286V(p-p), 75Ω (burst signal)

RCA pin jack ×6

Y : 1V(p-p) positive, 75Ω (3-values sync. provided)

/ PR : 0.7V(p-p) [±0.35V], 75Ω RCA pin jack

1V(p-p), 75Ω RCA pin jack ×1 500mV(rms) (-4dBs), high impedance RCA pin jack ×2 mini-DIN 4-pin jack ×1

Y : 1V(p-p) positive, 75Ω (negative sync. provided) C : 0.286V(p-p), 75Ω (burst signal)

RCA pin jack ×4 Variable : More the n 0 ~ 1550mV(rms) (+6dBs) / Fix : 500mV(rms) (-4dBs) Low impedance (400Hz when modulated 100%)

No.51775B

SAFETY PRECAUTIONS

V-61S902

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. Repl acemen t par ts m ust be i d en tical t o t h ose used in t h e orig i n al 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 f urther relieve the manuf acturer of responsibility for personal injury or proper ty damage r esulting therefrom.

3. Many electrical and mechanical parts in the products have special safet y-related charac teris tics . Thes e charac teris tics are oft en not evident from visual i nspec tion nor can th e protec tion afforded by them nec essarily be obtained by using replacement comp onen ts rat ed f or h igh er vol tag e, wat tage, etc . Rep lac ement 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 us e of a substitute replacement which does not

have the same safety characteristics as the recommended repl acemen t part shown in t he part s li st of Ser vice m anual m ay cause shock, fire, or other hazards.

4. Use isolation transformer when hot chassis. The chassis and a n y sub-cha ssi s con t a i n e d i n some pr o d u cts are connected to one side of the AC power line. An isolation tran sform er of ad eq u ate c ap acit y shou l d be i n serted b et w een 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

(NEUTRAL) side ground or EARTH side ground when repairing.

Some model's power circuit is partly diff erent in the G ND. The diff erence of t he GN D is shown by t h e LIVE : ( " ) side GND, the ISOLATED(NEUTRAL) : (#) side GND and EART H : ( $) side GND. Don't short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or EARTH side GND and neve r measure w ith a me a suring appara tus (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 k ept, a fuse or any pa rts will be broken.

6. If any repair has been made t o the chassis, it is recommended that the B1 setting should be checked or adjusted (See ADJUSTMENT OF B1 POWER SUPPLY).

7. T he 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 voltag e condit ions s hould be k ept to a mini mum, or s hould be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrec t 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. Us e 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 10kΩ 2W resistor to the anode button.

9. Wh en s er vi c e is req u ir ed, ob s erve t he or ig in al lead dr es s . E xtr a prec aution shoul d be g iven to as sur e corr ect lead dres s in the high voltage circuit area. W here a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer's replacement components.

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 c abinet, screwheads , earphone jack, control shafts, etc.) to be su r e the p r od uct is s afe to operate with ou t dang er of el ectr ical shock.

(1) Dielectric Strength Test

Th e is olati on b etween the A C pr imar y ci rc ui t and all m etal par ts expos ed 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.

(. . . . Withs tand 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 pe riod of one second.) This method of test requires a test equipment not generally found in the service trade.

(2) Leakage Current Check

Plu g t h e A C lin e cor d di rec t l y i n to th e AC out let (d o n ot us e a l i n e 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 havi n g a return path to the chassis, to a known g ood earth ground (wat er pipe, etc.) . Any l eakage cur rent 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

Plu g t h e A C lin e cor d di rec t l y i n to th e AC out let (d o n ot us e a l i n e isolati on trans former duri ng this check. ). Us e an AC voltmeter having 1000 ohms per volt or more sensitivity in the following manner. Connect a 1500Ω 10W resistor paralleled by a 0.15μF AC -type c apaci tor b etween an exposed metal p art an d 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 t he chassis, and measure the AC voltage ac ros s th e resi st or. Now, rever s e the pl ug i n t he AC outlet and repeat each measurement. Any voltage measured must not exc eed 0.75V AC (r .m.s.). This c orresponds to 0.5mA AC (r.m.s.). However , in t ropi cal area, t his must n ot exceed 0. 3 V AC ( r.m . s.). This corresponds to 0.2mA AC (r.m.s.).

AC VOLTMETER (HAVING 1000

GOOD EARTH GROUND

11. High voltage hold down circuit check. 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.

0.15μF AC-TYPE

1500

10W

OR MORE SENSITIVITY)

PLACE THIS PROBE ON EACH EXPOSED METAL PART

POWER CORD REPLACEMENT WARNING. Connecting the line side of power cord to " " mark side.

PWB

A V

/V,

LINE

No.51775B

1-3

V-61S902

SPECIFIC SERVICE INSTRUCTIONS

SERVICE REPLACE CORRESPONDENCE

The following service policy is being utilized.

Item Part number Service method

MAIN PWB ASS’Y RECEIVER PWB ASS’Y AV SELECTOR PWB ASS’Y COMPONENT INPUT PWB ASS’Y REAR JACK PWB ASS’Y I-P CONVERT. PWB ASS’Y 3D YC SEP. MODULE SUB COLOR DEMOD. MODULE RGB PROCESS MODULE SURROUND MODULE MAIN DRIVE PWB ASS’Y POWER PWB ASS’Y LINE FILTER PWB ASS’Y IGNITER PWB ASS’Y LED PWB ASS’Y FRONT JACK PWB ASS’Y FRONT CONTROL PWB ASS’Y REMO-CON SENSOR PWB ASS’Y DIGITAL INPUT MODULE SUB DRIVE MODULE OPTICAL BLOCK SCREEN

✻

✻1 : DIGITAL INPUT MODULE is supplied as assembled the service short jumper.

✻✻ ✻

✻2 : SUB DRIVE MODULE is supplied as assembled the OPTICAL BLOCK and 2 memory ICs.

✻✻ ✻

✻3 : OPTICAL BLOCK is supplied as assembled the SUB DRIVE MODULE and 2 memory ICs.

✻✻

✻

✻4 : SCREEN is supplied as assembled the screen frame and other screen parts.

✻✻

✻✻✻✻4

OPTICAL BLOCK is included the D-ILA HOLOGRAM device. OPTICAL BLOCK is not included the projection lens .

✻✻✻✻3

✻✻✻✻1

✻✻✻✻2

SPD-1002A SPD-0R002A SPD-0R101A SPD-0J002A SPD-0J101A SPD-0D001A SHI-0Y021A SHI-0V131A SPD-0V002A SPD-0A001A SPD-1101A SPD-9001A SPD-9102A SPD-9201A SPD-7001A SPD-7101A SPD-7202A SPD-7301A

902CP-S 902OP-S 902OP-S 902SC-S

Replace parts Replace parts Replace parts Replace parts Replace parts Replace (module) Replace (module) Replace (module) Replace (module) Replace (module) Replace (module) Replace parts Replace parts Replace parts Replace parts Replace parts Replace parts Replace parts

Replace (assembly) Replace (assembly) Replace (assembly) Replace (assembly)

1-4

No. 51775B

SERVICE PARTS KIT INSTRUCTIONS

Due to the character of this product, these 3 parts kits are prepared. Please note these matters when replacing or ordering the parts.

1. 902OP-S : OPTICAL UNIT

CONTENTS

➀

D-ILA HOLOGRAM device Optical block (without the IGNITER PWB ASS’Y and the Projection lens)

➁

SUB DRIVE MODULE (SPD-3001A)

➂

Memory IC with adjusted data for the MAIN DRIVE PWB ASS’Y (SPD-1101A : IC147)

➃

Memory IC with adjusted data for the MAIN PWB ASS’Y (SPD-1002A : IC702)

➄

PRECAUTION FOR USING

1) When it is required to replace one of these, replace this kit. Replace all components of this kit. : D-ILA HOROGRAM device, Optical block, SUB DRIVE PWB ASS’Y, IC147 (MAIN DRIVE PWB ASS’Y) or IC702 (MAIN PWB ASS’Y) The memory IC stored adjustment data. So it is required to replace all parts together.

2) When replace the MAIN DRIVE PWB ASS’Y, take off the memory IC (IC147) from the original board and replace with new one. When replace the MAIN PWB ASS’Y, do same manner. Replace memory IC (IC702).

3) After the replacement of the Optical block, objective lens focus adjustment is required.

2. 902CP-S : DIGITAL INPUT (HDCP) UNIT

CONTENTS

➀

DIGITAL INPUT MODULE (SPD-7801A) Short jumper

➁

V-61S902

PRECAUTION FOR USING

1) The DIGITAL INPUT MODULE does not function correctly when the rear cover is opened. It is required to insert the short jumper on the connector when it is required to operate it with the ear cover open condition.

2) In case of if the short jumper did not used, it is required initializing the DIGITAL INPUT MODULE.

3) Do not forget to take off the short jumper after the replacement.

3. 902SC-S : SCREEN ASS’Y

CONTENTS

➀ Fresnel lens

Double lenticular lens

➁

Screen shield

➂

Screen frame

➃

Screen holders and brackets

➄

PRECAUTION FOR USING

1) The screen is supplied as above assembly form.

No. 51775B

1-5

V-61S902

REQUIREMENTS FOR SETTING

""""

GENERAL

This product contains 4 internal fans. There is risk of internal overheating if the fan intakes and exits are obstructed. In event the internal temperature increases excessively, a sensor functions to cut off the power. Therefore, when using the product, check that the fan intakes and exhausts are not blocked by dust and there is adequate free space around the unit to allow ample ventilation.

Intake hole

Exhaust hole

LAMP UNIT

""""

GENERAL

! The lamp emits high intensity white, ultraviolet and infrared light.

Do not look directly at the light during service. Also, do not touch the lamp directly as it presents a burn hazard.

! Hand le with extra care. This projector lamp emits high heat and contain s high-pressure during use.

!! !

! Do n ot give any impact as this may cause the broken lamp.

!! !

! Do n o t put foreign objects near the ventilation holes as this can result in fire or electrical hazards.

Do not block the ventilation holes as this may cause the internal temperature to rise an d possibly result fire.

" PRECAUTION FOR REPLACEMENT

( Do not replace the light- source lamp immediately after the projector has been used.

The temperature of the light- source lamp is still high and could cause a burn. Allow a cooling period of one hour or more before performing replacement.

( Before starting light-source lamp replacement work, turn off the MAIN POWER switch, and disconnect the power cord from the wall

outlet.

( If touched, the lamp glass surface (bulb) may rupture and burns may result.

Do not touch the glass portion or metal portion. Handle only plastic handle.

1-6

No. 51775B

SCREEN

" GENERAL

( The screen assembly is made from the double lenticular lens, fresnel lens and the screen shield.

The anti static proceeding and the AR coating cover the surface of the lenticular lens. Rubbing the surface with something hard, the coating may peel off. When the screen is dirty, gently wipe it with a soft cloth. If the screen is very dirty, wipe it down with a cloth dipped in a diluted kitchen cleaner (neutrality detergent) and thoroughly wrung-out. Then wipe immediately after with a clean, dry cloth. Never use the organic solvent such as the alcohol or benzine. The screen assembly replacement is required if the coating was peel off. Alkaline detergent or acidity detergent can not be used.

( The notched side of the double lenticular lens and the fresnel lens are faced each other.

Do not rub the screen when cleaning it or replacing it. Rubbing the screen may cause of the scratch of the screen by its notch.

D-ILA HOLOGRAM DEVICE

" STRUCTURE

V-61S902

Glass substrate

Liquid

crystal

ＲＧ

H:1280pixels X 3colors

1.22

Ｂ

inches

V:1028pixels

Effective pixcel measurment

Ｂ

ＲＧ

drive IC

incident

light

Glass spacer

ＲＧ

Ｂ

Horogram color filtor

protection

membrane

transpealancy

electrode

orientational

membrane

ＲＧ

Refrevtive pixel electrode

" SPECIFICA TION

Pixel numbers aperture ration

Horizontal : 1280pixels × 3colors, Vertical : 1028pixels

90.3％

No. 51775B

1-7

V-61S902

DISASSEMBLY PROCEDURE

1. FRONT SIDE -1

SPEAKER GRILLE

1) Pull outward and remove 2 adhesive tapes [A]. Take out the SPEAKER GRILLE.

! Both left and right have the same construction.

UPPER FRONT PANEL

● Take out the left and right SPEAKER GRILLES.

1) Remove 4 screws [B] and take out the UPPER FRONT PANEL.

FRONT CONTROL PWB ASS’Y

● Take out the UPPER FRONT PANEL.

1) Disengage interior connectors (X3 / X4).

2) Remove 6 screws [C] and take out the FRONT CONTROL PW B ASS’Y.

LOWER FRONT PANEL

● Take out the left and right SPEAKER GRILLES.

1) Remove 4 screws [D] and take out the LOWER FRONT PANEL.

FRONT JACK PWB ASS’Y

● Take out the LOWER FRONT PANEL.

1) Disengage interior connectors (AM / F).

2) Remove 2 screws [E] and 2 screws [F]. Take out the FRONT JACK PWB ASS’Y.

ADJUSTMENT COVER

" Take out the ADJUSTMENT COVER when using a personal

computer for adjustment.

● Take out the right SPEAKER GRILLE.

1) Loosen 4 screws [G].

2) Pull upward and take out the ADJUSTMENT COVER.

! When adjustment used the PC, connect the PC to the adjustment

terminal (RS-232C control : D-sub 9-pin connector) .

FILTER COVER

" Take out the FILTER COVER when take out the LAMP FILTER

COVER and replacing the LAMP UNIT.

● Take out the left SPEAKER GRILLE.

1) Loosen 4 screws [H].

2) Pull upward and take out the FILTER COVER.

BASS SPEAKER

● Take out the left and right SPEAKER GRILLES.

1) Support the speaker front and take out 4 screws [J].

2) Disengage the connecting wires and take out the BASS SPEAKER.

! Both left and right have the same construction. ! The BASS SPEAKER are heavy. Use care not to drop or

damage them.

SCREEN ASS’Y

● Take out the left and right SPEAKER GRILLES.

1) Remove 2 screws [K].

2) Pull upward and take out the SCREEN ASS’Y.

! Use care not to scratch the front of the screen ! When transporting, avoid grasping the top of the SCREEN ASS’Y.

Grasp the left and right sides or bottom.

! When reassembling, observe the left and right pins of the cabinet

are engaged with the rear left and right hooks of the frame at SCREEN ASS’Y. Also check insertion into the 3 slits at the lower front of the cabinet.

MIRROR

! Wear protective gloves to avoid contaminating the MIRROR.

● Take out the SCREEN ASS’Y.

1) Remove 4 left and right screws [L] together with the holder.

2) Support upper part of the MIRROR, remove 6 screws [M] together with the holder and take out the MIRROR.

! The MIRROR is heavy and easily broken. Use care not to

impart physical shock.

REMOTE CONTROL SENSOR PWB ASS’Y

● Take out the SCREEN ASS’Y.

1) Remove 1 screw [N] and take out the REMOTE CONTROL SENSOR PWB ASS’Y.

! Since the projector lens is nearby, use care not to soil or scratch

the lens projection side.

MAIN SPEAKER

● Take out the left and right SPEAKER GRILLES.

1) Remove 4 screws [I].

2) Disengage the connecting wires and take out the MAIN SPEAKER.

! Both left and right have the same construction.

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No. 51775B

+ 18 hidden pages