JVC HD-52Z575 service manual Section Disassembly

Page 11

SECTION 3

DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

•Make sure that the power cord plug is pull out from the AC wall outlet.

•Wait until the LAMP UNIT has cool down is completely.

•While not in repair service, place the chassis back its original position.

CAUTION AT DISASSEMBLY

•Pay extra attention in the following matter when turning the power on with the BODY COVER removed.

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

(2)Make sure that the REAR JACK PWB: IC2081 is completely covered with black masking tape. (Fig.1)

(3)Make sure to remove the masking of REAR JACK: IC2081 when attaching the BODY COVER.

(4)Do not turn the power on until the BODY COVER is attached properly, after the masking is removed.

3.1.5 FRONT LED PWB

•Take out the SPEAKER GRILL.

•Take out the FRONT PANEL.

(1)Remove 2 screws [ F ] from rear side of FRONT PANEL.

(2)Take out the FRONT LED PWB.

3.1.6 FILTER COVER

•Take out the SCREEN BLOCK.

(1)Remove 2 screws [ G ].

(2)Take out the FILTER COVER.

• Remove the both side FILTER COVER same manner.

3.1.7 CENTER COVER

•Take out the SPEAKER GRILL.

•Take out the FRONT PANEL.

(1)Remove 2 screws [ H ].

(2)Take out the CENTER COVER.

REAR JACK PWB

<FRONT SIDE>

IC2081

Masking tape

Fig.1

3.1.8 SCREEN BLOCK

•Take out the SPEAKER GRILL.

•Take out the FRONT PANEL.

(1)Remove the 4 screws [ I ].

(2)Remove 10 screws [ J ] from rear side.

(3)Take out the SCREEN BLOCK.

CAUTION :

• Place the SCREEN BLOCK on a flat table without fail.

• Because of the large size, at least 2 parsons are

recommended for removal and reassemble.

• Use care not to scratch the screen during work.

• During assembly, be sure to engage the left and right tabs

with the cabinet mounting positions.

• When supporting the SCREEN BLOCK, avoid grasping the

3.1.1 SPEAKER GRILL (L & R)

(1)Remove 1 screw [ A ] from right rear side.

(2)Remove 1 screw [ B ] from left rear side.

(3)Take out the SPEAKER GRILL (L& R).

3.1.2 SPEAKER

•Take out the SPEAKER GRILL.

(1)Remove 4 screws [ C ].

(2)Take out the SPEAKER.

*Remove the both side SPEAKER same manner.

3.1.3 FRONT PANEL

•Take out the SPEAKER GRILL.

(1)Remove 4 screws [ D ].

(2)Take out the FRONT PANEL.

3.1.4 LAMP COVER

•Take out the SPEAKER GRILL of LEFT SIDE.

(1)Remove 1 screw [ E ].

(2)Take out the LAMP COVER.

NOTE :

•Do not leave the LAMP COVER removed for long time to prevent dirt and dust form covering the lens.

•Make sure that the LAMP COVER is completely installed.

top of the screen panel, instead grasp the left and right

areas.

• Do not leave the SCREEN BLOCK removed for long time

to prevent soiling from dust.

3.1.9 SCREEN ASS’Y

•Take out the SCREEN BLOCK.

[HD-52Z575 / HD-52Z585]

(1)Remove 20 screws [ K ] from FRONT CABINET.

[HD-61Z575 / HD-61Z585]

(1)Remove 24 screws [ K ] from FRONT CABINET.

(2)Take out the SCREEN ASS’Y.

3.1.10 FRONT PANEL

•Take out the SCREEN BLOCK.

[HD-52Z575 / HD-52Z585]

(1)Remove 16 screws [ L ] from FRONT CABINET.

[HD-61Z575 / HD-61Z585]

(1)Remove 20 screws [ L ] from FRONT CABINET.

(2)Take out the FRONT PANEL.

(No.YA092B)1-11

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Contents HD-52Z575 HD-52Z585 HD-61Z575 HD-61Z585 TableofcontentsItems Contents HD-52Z575 HD-61Z575 HD-52Z585 HD-61Z585 SpecificationSafety Precautions Section PrecautionsOFF Installation Heat DissipationInstallation Requirements Lamp Unit Replacement HOW to Confirm Lamp Operating TimeHOW to Replace the Lamp Unit HOW to Reset the Lamp TimerScreen Handling Cautions 1.5.1 Screen Storage Precaution for UsingPart Number and Construction Optical / Drive ASS’Y ConstructionSection Specific Service Instructions Pin Port Pin name Function No.YA092B1-9 System Reset Section Disassembly Front Back Cover Front Inner Side 3.1.11 MirrorSide Control Base Side Control PWBBody Side View Body Side 3.1.15 Body CoverBody Bracket Main UnitSUB Drive PWB Digital Signal PWBAnalog Signal PWB Inner PWB Side AV Terminal BoardFront Optical / Drive ASS’Y Optical Side Lamp FAN Duct & ThermostatFAN Control PWB Remote Sensor PWBOptical Side View Front Attachment AssemblyShield Plate Attachment Process Adjust Memory IC Replacement 3.2.1 Memory ICService Menu Setting Items Standard Dynamic Theater Game Setting of Factory Shipment Button OperationInitial Setup Sound Adjust Clock / TimersSoldering Iron Replacement of Chip ComponentReplacement Steps Section Adjustments Setting of the Optical Block / Drive Circuit HOW to Enter the Service MenuSelect the Service Menu Item Select the Setting Item & Setting ValueDescription of Status Display Signal SystemSetting of the Service Menus Adjust MenuAudio System Initial Setting Value of Service MenuVideo System SYL CON SV GNSVH GN SH GNSystem Setting Do not adjust All fixed Projection Lens Adjustment Procedure Optical Block / Drive CircuitRGB BOX Pattern Remote Control Unit KEY Function Lens FocusPosition Drive CenterBrightness AD offset adjustment modeOffset 1125iS016RT CB S013HD CBS014HD CR SUB ScreenMTS Input WhiteBalance MTS CirutPoints to Note When Using the SELF-CHECK Feature Section TroubleshootingSELF-CHECK Feature 5.1.1 Outline To Clear Reset Failure HistoryDetails Explanation on Action Display Method When Raster is not AvailableCheck item Contents Classifi LED flash cycle Cations Power LED Lamp LEDJVC Service & Engineering Company of America
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HD-52Z575 specifications

The JVC HD-52Z575, HD-61Z585, HD-61Z575, and HD-52Z585 are high-definition rear-projection televisions that were part of JVC's impressive line-up in the early 2000s. These models showcased the brand's commitment to providing quality home theater experiences with advanced features and technologies.

One of the standout characteristics of these models is their use of D-ILA (Direct-Drive Image Light Amplifier) technology. D-ILA is a type of liquid crystal display technology similar to LCoS (Liquid Crystal on Silicon) that enhances picture quality by delivering deeper blacks and more vibrant colors. This technology enables the TVs to produce stunning visuals with impressive contrast ratios, making them ideal for various viewing environments.

These models are available in different screen sizes, with HD-52Z575 and HD-52Z585 featuring 52-inch screens, while the HD-61Z585 and HD-61Z575 boast larger 61-inch displays. This range offers versatility for consumers, catering to different room sizes and viewing preferences.

All four models support 1080p resolution, providing an exceptional level of detail and clarity for HD content. This feature makes them suitable for viewing high-definition broadcasts, Blu-ray films, and gaming, allowing users to immerse themselves in their favorite content. The screens also feature a wide viewing angle, ensuring that everyone in the room gets a good view without compromising picture quality.

Connectivity is another strength of these JVC models. Equipped with multiple HDMI ports, component video inputs, and composite inputs, these televisions provide compatibility with a wide range of devices, from gaming consoles to DVD players. Users can easily connect their favorite devices, expanding their entertainment options.

In terms of audio, these JVC TVs are built to complement their visual capabilities, featuring integrated speakers that deliver decent sound quality for everyday use. For those who seek an enhanced audio experience, they offer optical digital audio outputs for external sound systems.

In conclusion, the JVC HD-52Z575, HD-61Z585, HD-61Z575, and HD-52Z585 are notable for their advanced display technologies, high-definition resolutions, and versatile connectivity options. Their D-ILA technology ensures a superior viewing experience, making these rear-projection TVs a compelling choice for any home theater enthusiast looking to enjoy high-quality visuals and sound. Although released in the early 2000s, these models remain a testament to JVC's dedication to innovation and excellence in the television market.
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