JVC DVL320U, DVL720U Preliminary Remarks on Adjustment and Repair, Part Name Point Remarks

Page 17

SECTION 2

MECHANISM ADJUSTMENT

2.1PRELIMINARY REMARKS ON ADJUSTMENT AND REPAIR

2.1.1 Precautions

1.When fastening parts, pay careful attention to the tight- ening torque of each screw. Unless otherwise specified, tighten a screw with the torque of 0.039 N•m (0.4 kgf•cm).

2.Be sure to disconnect the set from the power supply be- fore fastening and soldering parts.

3.When disconnecting/connecting wires, be careful not to get them and their connectors damaged. (Refer to the Section 1.)

4.When replacing parts, be very careful neither to dam- age other parts nor to fit wrong parts by mistake.

2.1.2 Notes on procedure for disassemby/assembly

The disassembling procedure table (Table 2-4-1 on page 2-6, a part of the table is shown below for reference)shows the procedure to disassemble/reassemble mechanism parts.

Carefully read the following explanation before starting ac- tual disassembling/reassembling work. The item numbers (circled numbers)in the following explanation correspond to those appearing under respective columns of the table.

(1)Circled numbers appearing in this column indicate the order to remove parts. When reassembling, follow these numbers in the reverse order. Circled numbers in this column correspond to those appearing in drawings of this section.

(2)This column shows part names corresponding to circled numbers in the left column.

(3)The symbol (T or B)appearing in this column shows the side which the objective part is mounted on.

T =the upper side, B =the lower side

(4)Symbols appearing in this column indicate drawing numbers.

Step Part Name Fig. Point Note Remarks

(5)This column indicates parts and points such as screws, washers, springs, and others to be removed/fitted for disassembling/reassembling the mechanism. Besides such the parts, this column occasionally indicates work- ing points.

P = Spring

W = Washer

S = Screw

∗= Lock (L),soldering (SD),shield,connector (CN), etc.

Example • Remove (W1)=Washer W1.

•∗Remove the solder at (SD 1)=Point SD 1.

•∗Disconnect Å =Connector Å .

(6)Numbers in this column represent the numbers of notes in the text. For example, “1” means “Note 1”.

(For parts that need phase adjustment after reassem- bling, refer to “2.6 MECHANISM ADJUSTMENTS”.)

(7)This column indicates required after disassembling/re- assembling work such as phase adjustment or mecha- nism adjustment.

NO.

 

PART NAME

 

 

FIG.

POINT

NOTE

REMARKS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A C

assett

e housing assembly

T

Fig. 2-4-5

3(S1),(L1a)-(L1d)

1a, 1b, 1c, 1d

Adjustment

 

 

 

 

 

 

 

 

 

 

2a

Reel disk (SUP) assembly

T

Fig. 2-4-6

(W2)

2a, 2b

 

 

 

 

 

 

 

 

 

 

2b

Reel disk (TU) assembly

T

Fig. 2-4-6

(W2)

2a, 2b

 

 

 

 

 

 

 

 

 

 

2c

Reel cover assembly

T

Fig. 2-4-6

(S2b),2(S2a),(W2)

2d

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3a

Tension arm assembly

T

Fig. 2-4-7

(W3a)

3b

 

 

 

 

 

 

 

 

 

 

 

3b

Release guide assembly

T

Fig. 2-4-7

-

 

3a

 

 

 

 

 

 

 

 

 

 

 

3c

Idler arm assembly

T

Fig. 2-4-7

(W3b)

-

 

 

 

3d

Guide arm assembly

T

Fig. 2-4-7

-

 

3a

 

 

3e

Pinch roller arm assembly

T

Fig. 2-4-7

(W3a)

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4a

Cleaner arm assembly

T

Fig. 2-4-8

(L4a)

4a

 

 

4b

Slant pole arm assembly

T

Fig. 2-4-8

(W4),(L4b),(P4a),(P4b)

4b

 

 

4c

Drum assembly

T

Fig. 2-4-8

3(S4)

-

 

 

 

5a

Guide roller (S) assembly

T

Fig. 2-4-9

(P5)

5a

 

 

5b

Rail assembly

T

Fig. 2-4-9

3(W5a), (W5b)

5b, 5c

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

 

(2)

(3)

(4)

(5)

(6)

(7)

2-1

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Contents 973396-1000 973317-5000630851-7855 714229-8011Table of Contents Important Safety Precautions Safety Check after Servicing Precautions Before Assembly and DisassemblyAssembly and disassembly Destination of connectorsDISASSEMBLY/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 hinge assembly for 2.5-type LCD 4 Monitor AssemblyDisassembly/assembly of monitor 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 LCDDisassembly/assembly of E.VF assembly for the B/W VF 5 E. VF Assembly∗ 0.078 N m 0.8 kgf cm VF Hinge AssyHow to assemble CCD base assembly and CCD board assembly How to remove CCD board assembly and CCD base assemblyReplacement of service repair parts ∗ 0.078 N m 0.8 kgf cmLCD Example in case of the error number E01Emergency Display Monitorassy Service NoteOpblockassy WvfassyPart Name Point Remarks Preliminary Remarks on Adjustment and RepairSlit washer Installation Jig Adjustment DriverJig Connector cable Service Support SystemMechanism assembly/Cassette housing assembly DISASSEMBLY/ASSEMBLY of Mechanism AssemblyBack side of the mechanism assembly Explanation of mechanism modeREV Play Parts Mechanism timing chartSlide deck assembly Main deck assembly Mechanism assemblyFollow chart Configuration Procedures for disassemblyDisassembling procedure table 10d 10cDisassembly/assembly Cassette housing assembly L1b Cassette Housing assembly L1aL1d L1a L1c SuptuW3a W3b 4c Drum assemblyL4a P4b P4a L4bAssembly BSlide deck assemblyGuide roller Assembly CMain deck8c Brake control lever assembly 8a Tension lever assembly/ 8b Slide lever assembly8a Tension lever assembly W7Note 7d P7b S7b Note 7c S7a P7a P7c P7d L7b L7a L7d L7c10b L10 W10a 10c W10a 10d10a W10b 10e 11d 11b 11e W11 Note11c KYODO-SH-P List of procedures for disassemblyCheckup and Adjustment of Mechanism Phase Mechanism Adjustments Locating tension pole Play modeLocating procedure 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 CoverJIGPrecaution PrecautionMonitor Required test equipmentSetup

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.

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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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