JVC DVL522U, DVL720U, DVL320U, DVL520U, GR-DVL220U Checkup and Adjustment of Mechanism Phase

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2.5 CHECKUP AND ADJUSTMENT OF MECHANISM PHASE

<Rotary encoder>

Set the “■” of the rotary part at the tapped hole as shown in the figure.

<Worm wheel> (Note 2) Set the worm wheel so that its locating hole meets the hole on the main deck assembly.

<Main cam gear /Brake control plate> After fitting the main cam gear and brake control plate together,set them together so that their locating holes meet the hole on the main deck assembly.

<Connect gear> (Note 2) Set the connect gear so that its locating hole meets the hole on the main deck assembly.

Note 1

<Connect gear 2> (Note 2) Set the connect gear 2 so that its locating hole meets the hole on the main deck assembly.

<Sub cam gear>

Set the sub cam gear so that its locating hole meets the hole on the main deck assembly. This state represents that the mechanism is in the EJECT mode, which is the “mechanism assembly mode”.

Note 1:

Since the connect gear 2 is tightly fixed to the main deck by caulking, adjust its phase with the connect gear and sub cam gear.

Note 2:

The part that needs phase adjustment by the hole on the main deck assembly must exactly be set as the specified phase. There is a fear that some part is installed in a wrong phase because assembling of the mechanism is automated. If so, set every part in the correct phase whenever the mechanism is reassembled.

Fig. 2-5-1

2-15

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Contents 714229-8011 973317-5000973396-1000 630851-7855Table of Contents Important Safety Precautions Safety Check after Servicing Destination of connectors Before Assembly and DisassemblyPrecautions Assembly and disassemblyDISASSEMBLY/ASSEMBLY of Cabinet Parts and Board Assembly Disassembly method ∗ 0.147N·m 1.5kgf·cm 19 S 20 SCover CN 10 b 10 a CN 10 aMecha PlateDisassembly/assembly of monitor assembly for 2.5-type LCD 4 Monitor AssemblyDisassembly/assembly of hinge assembly for 2.5-type LCD Disassembly/assembly of hinge assembly for 3.5-type LCD Disassembly/assembly of monitor assembly for 3.5-type LCDVF Hinge Assy 5 E. VF AssemblyDisassembly/assembly of E.VF assembly for the B/W VF ∗ 0.078 N m 0.8 kgf cm∗ 0.078 N m 0.8 kgf cm How to remove CCD board assembly and CCD base assemblyHow to assemble CCD base assembly and CCD board assembly Replacement of service repair partsEmergency Display Example in case of the error number E01LCD Wvfassy Service NoteMonitorassy OpblockassyPart Name Point Remarks Preliminary Remarks on Adjustment and RepairService Support System Adjustment DriverSlit washer Installation Jig Jig Connector cableExplanation of mechanism mode DISASSEMBLY/ASSEMBLY of Mechanism AssemblyMechanism assembly/Cassette housing assembly Back side of the mechanism assemblyREV Play Parts Mechanism timing chartProcedures for disassembly Mechanism assemblySlide deck assembly Main deck assembly Follow chart ConfigurationDisassembling procedure table 10d 10cSuptu L1b Cassette Housing assembly L1aDisassembly/assembly Cassette housing assembly L1d L1a L1cP4b P4a L4b 4c Drum assemblyW3a W3b L4aCMain deck BSlide deck assemblyAssembly Guide roller AssemblyW7Note 7d P7b S7b Note 7c S7a P7a P7c P7d L7b L7a L7d L7c 8a Tension lever assembly/ 8b Slide lever assembly8c Brake control lever assembly 8a Tension lever assembly10a W10b 10e W10a 10c W10a 10d10b L10 11c W11 Note11d 11b 11e KYODO-SH-P List of procedures for disassemblyCheckup and Adjustment of Mechanism Phase Mechanism Adjustments Locating procedure Play modeLocating tension pole 2b Reel disk TU assembly W2 ⋅1 S2a ⋅2 S2b ⋅1 Tension arm Lever assembly JIG Connector Cable Connection Jig connector cable YTU93082C Jig board CN105 CoverJIGRequired test equipment PrecautionPrecaution MonitorSetup

DVL522U, GR-DVL220U, DVL720U, DVL520U, DVL320U specifications

The JVC DVL320U, DVL520U, DVL720U, GR-DVL220U, and DVL522U are part of JVC's renowned line of digital camcorders that emerged in the early 2000s. Each model showcases an impressive blend of innovative features suited for both amateur enthusiasts and semi-professional videographers alike.

The DVL320U is particularly notable for its compact design and user-friendly interface, making it ideal for capturing everyday moments. It features a 680,000-pixel CCD sensor that provides vibrant image quality and accurate color reproduction. Enhanced with 20x optical zoom and a digital zoom of up to 100x, this model allows users to capture distant subjects clearly. Its built-in digital effects and transition features enable creative video production without needing extensive editing skills.

Moving on to the DVL520U, this model builds upon its predecessor with improved resolution and additional recording formats. The DVL520U supports both VHS-C and S-VHS-C formats, enhancing its versatility for different recording needs. The camera offers excellent low-light performance, aided by its Night Alive feature, which amplifies low-light sensor signals, allowing users to record in dim conditions effectively.

The DVL720U stands out due to its superior optical performance with a 24x optical zoom and enhanced image stabilization technology. With this model, users can expect smoother visuals, particularly in dynamic shooting situations. Alongside a larger LCD screen for easier monitoring, the DVL720U incorporates various shooting modes, including a manual focus option and white balance settings to adapt to multiple shooting environments.

The GR-DVL220U caters to those looking for a portable solution without sacrificing quality. With a combination of high-quality video capture and a compact form factor, this camcorder is ideal for travel and outdoor use. It boasts a Quick Rec function for spontaneous shooting, allowing videographers to capture fleeting moments quickly.

Lastly, the DVL522U enhances connectivity and usability, boasting FireWire input to facilitate easy digital transfer to computers for editing. This feature makes it perfect for aspiring content creators who wish to move their footage to digital platforms seamlessly. Its advanced image processing technology also helps reduce noise and enhance clarity for non-stop recording joy.

In summary, the JVC DVL320U, DVL520U, DVL720U, GR-DVL220U, and DVL522U are impressive camcorders boasting innovative features tailored for various videography needs. With advances in optical zoom capabilities, low-light performance, and connectivity options, JVC has established itself as a key player in the digital video industry during this era.
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