JVC DVL320U, DVL720U, DVL522U, DVL520U Disassembly/assembly of monitor assembly for 3.5-type LCD

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Note: The shape of the monitor assembly varies by the size of the LCD screen.

For the 3.5”-type LCD, refer to Fig. 1-4-2.

1.4.3Disassembly/assembly of monitor assembly (for 3.5”-type LCD)

Note: Be careful not to soil or scratch the monitor screen through the disassembly/assembly work.

1.Remove the four screws 1 to 4 in numerical order. While disengaging the six hooks (L4a to L4f) in alphabetical order, remove the monitor cover assembly.

Note4e: When removing the monitor cover assembly, be careful not to damage the FPC and connector.

3.Unplug the wires and FPCs from the two connectors b , c , and then remove the MONITOR BL board assembly, holder (PWB) and backlight in that order.

4.Remove the LCD module while disengaging it from the four hooks (L4g, L4h, L4j, L4k,).

1.4.4Disassembly/assembly of hinge assembly (for 3.5”-type LCD)

1.Remove the three screws (5 to 7), and then remove the hinge covers (1) and (2) by disengaging a total of four hooks (L4m, L4n) at the two sides.

2.Separate the SW board assembly and the FPC from the hinge assembly.

2.Unlock the connector a and then disconnect the FPC while lifting the hinge assembly upwards to remove it to- gether with the FPC.

Note4f: For disconnecting the FPC, unlock the connector first and then lift the hinge assembly upwards. Accordingly, the FPC is disconnected together with the hinge assembly.

Note4g: Treat the wires carefully.

Note4h: When disassembling/assembling the hinge assem- bly, pay careful attention to every part not to dam- age anything.

Note4j: When connecting the FPC, arrange the FPC wire by winding it around the shaft (hinge pin) of the hinge assembly by two and a half turns while pay- ing heed to the orientation of the hinge assembly and FPC.

(L 4

c)

(L 4

f)

 

 

: 0.069N·m (0.7kgf·cm) ∗∗ : 0.098N·m (1.0kgf·cm)

∗∗∗ : 0.147N·m (1.5kgf·cm)

6

(S 4 d)

 

Monitor cover

 

 

(L 4 e)

 

 

 

assy

 

 

 

 

 

(L 4

b)

 

 

 

 

Hinge cover(1)

 

 

a

 

(L 4 d)

2∗∗

3∗∗∗

 

 

(S 4 a)

(S 4

b)

4∗∗∗

(L 4

a)

1∗∗

 

7

 

(S 4 b)

(S 4 a)

 

(S 4 d)

 

b

 

 

 

 

 

LCD BL PWB

 

 

 

 

 

c

 

 

 

d

 

 

 

 

 

MONI. FPC ASSY

 

 

 

 

Note 4 e

 

 

 

 

c

Note 4 h/ 4 j

 

 

 

 

Note

4 h / 4 j

 

4

a

 

Note

f

5

Hinge assy

 

 

 

(S 4

c)

 

 

 

 

 

(L 4 n)

b

 

 

 

 

 

 

Holder

 

 

 

c

(L 4 m)

(PWB)

 

 

 

 

 

 

 

 

 

 

 

Note 4 h/ 4 j

 

 

 

 

 

 

 

 

Hinge

cover(2)

 

 

 

 

 

 

 

FPC

Back

light

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD module

 

 

 

 

 

 

Hinge

 

 

 

 

 

 

 

 

Note 4 g

 

 

 

 

 

 

 

 

3.5”

 

 

 

 

 

Monitor

case

assy

 

 

 

 

 

 

 

 

 

 

 

(L 4

j)

 

 

 

 

 

(L 4

k)

 

(L 4

h)

 

 

 

 

 

 

 

 

 

 

 

 

(L 4

g)

 

 

 

 

 

 

b

 

 

Bracket(Earth)

 

 

 

 

 

 

 

 

 

 

 

 

a

 

 

 

 

 

 

 

Fig. 1-4-2

 

 

 

 

 

 

 

1-8

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Contents 973317-5000 973396-1000630851-7855 714229-8011Table of Contents Important Safety Precautions Safety Check after Servicing Before Assembly and Disassembly PrecautionsAssembly and disassembly Destination of connectorsDISASSEMBLY/ASSEMBLY of Cabinet Parts and Board Assembly Disassembly method 19 S 20 S ∗ 0.147N·m 1.5kgf·cmCN 10 b 10 a CN 10 a CoverPlate Mecha4 Monitor Assembly Disassembly/assembly of monitor assembly for 2.5-type LCDDisassembly/assembly of hinge assembly for 2.5-type LCD Disassembly/assembly of monitor assembly for 3.5-type LCD Disassembly/assembly of hinge assembly for 3.5-type LCD5 E. VF Assembly Disassembly/assembly of E.VF assembly for the B/W VF∗ 0.078 N m 0.8 kgf cm VF Hinge AssyHow to remove CCD board assembly and CCD base assembly How to assemble CCD base assembly and CCD board assemblyReplacement of service repair parts ∗ 0.078 N m 0.8 kgf cmExample in case of the error number E01 Emergency DisplayLCD Service Note MonitorassyOpblockassy WvfassyPreliminary Remarks on Adjustment and Repair Part Name Point RemarksAdjustment Driver Slit washer Installation JigJig Connector cable Service Support SystemDISASSEMBLY/ASSEMBLY of Mechanism Assembly Mechanism assembly/Cassette housing assemblyBack side of the mechanism assembly Explanation of mechanism modeMechanism timing chart REV Play PartsMechanism assembly Slide deck assembly Main deck assemblyFollow chart Configuration Procedures for disassemblyDisassembling procedure table 10c 10dL1b Cassette Housing assembly L1a Disassembly/assembly Cassette housing assemblyL1d L1a L1c Suptu4c Drum assembly W3a W3bL4a P4b P4a L4bBSlide deck assembly AssemblyGuide roller Assembly CMain deck8a Tension lever assembly/ 8b Slide lever assembly 8c Brake control lever assembly8a Tension lever assembly W7Note 7d P7b S7b Note 7c S7a P7a P7c P7d L7b L7a L7d L7cW10a 10c W10a 10d 10a W10b 10e10b L10 W11 Note 11c11d 11b 11e List of procedures for disassembly KYODO-SH-PCheckup and Adjustment of Mechanism Phase Mechanism Adjustments Play mode Locating procedureLocating tension pole 2b Reel disk TU assembly W2 ⋅1 S2a ⋅2 S2b ⋅1 Tension arm Lever assembly Jig connector cable YTU93082C Jig board CN105 CoverJIG JIG Connector Cable ConnectionPrecaution PrecautionMonitor Required test equipmentSetup

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