JVC DVL522U, DVL720U Monitor Assembly, Disassembly/assembly of monitor assembly for 2.5-type LCD

Page 11

1.4 4 MONITOR ASSEMBLY

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

For the 2.5”-type LCD, refer to Fig. 1-4-1.

1.4.1Disassembly/assembly of monitor assembly (for 2.5”-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.

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

Note4a: 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.

Note4b: Treat the wires carefully.

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.

1.4.2Disassembly/assembly of hinge assembly (for 2.5”-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 (L4g, L4h) at the two sides.

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

Note4c: 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.

Note4d: When disassembling/assembling the hinge assem- bly, pay careful attention to every part not to dam- age anything.

 

 

 

 

 

 

 

(L 4

c)

(L 4

f)

 

 

: 0.069N·m (0.7kgf·cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Monitor cover

 

 

 

(L 4

e)

 

∗∗

: 0.098N·m (1.0kgf·cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

assy

 

 

 

 

 

 

∗∗∗ : 0.147N·m (1.5kgf·cm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(L 4

b)

 

 

 

 

 

 

 

 

Hinge

cover(1)

 

 

 

 

a

 

 

2∗∗

 

 

 

 

 

 

3∗∗∗

4∗∗∗

 

 

(L 4 d) (S 4

a)

 

6

 

 

 

7

(S 4

b)

 

(L 4 a)

 

1∗∗

 

 

 

 

 

 

 

 

(S 4 b)

 

(S 4 a)

 

 

 

(S 4

d)

 

 

(S 4

d)

 

LCD BL PWB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c

 

 

 

 

 

 

 

b

 

 

 

 

 

MONI. FPC ASSY

 

 

 

 

 

 

 

 

c

 

 

 

 

 

 

 

 

 

 

 

a

 

 

 

 

 

 

 

Note 4 c / 4 d

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

Note 4 c / 4 d

 

 

Note 4 a

 

 

 

 

 

 

 

(S 4

c)

 

 

 

 

 

 

 

 

 

 

 

 

 

Hinge assy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 4 c / 4 d

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FPC

(L 4

g)

b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Holder

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

c

 

 

(L 4

h)

(PWB)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hinge

cover(2)

 

 

 

 

 

 

 

 

 

 

Hinge

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Backlight

 

 

 

 

 

 

 

Note 4 b

 

 

 

 

 

LCD module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bracket(Earth)

 

 

 

 

 

 

 

 

a

 

Monitor

case

assy

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 1-4-1

 

 

 

 

 

 

 

1-7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Image 11
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 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 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 partsLCD Example in case of the error number E01Emergency Display 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 assembly10b 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 CoverJIGRequired test equipment PrecautionPrecaution MonitorSetup

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