DSC-HX50, DSC-HX50V (serv.man2) - Sony Digital Camera Service Manual (repair manual). Page 17

DSC-HX50/HX50V_L2

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20. Return the Linear Guide Barrel_A to the retracted end.
21. Turn the rear edge of Front Assy about 12 degrees in the direction of arrow to detach the Front Assy from the Linear Guide Barrel_A.

Note: When detaching the Front Assy, do not stimulate the white part shown below. If it is stimulated, it may pop out by the action of the spring.

 

About 12
(Approx. 4mm) 

Linear Guide Barrel_A

Linear Guide Barrel_A

Rear edge of Front Assy

Front Assy

Spring

White part

22. Turn the Barrier Frame to remove it from the 1 Group Frame Block Assy.

 

Front Assy

Barrier Frame

1 Group Frame Block Assy

23. Turn the Core Unit_4 in the direction of arrow to detach it.

Note: Though the Core Unit_4 has resistance due to the spring tension, it can be detached by turning it overcoming the resistance.

 

Cam Barrel

Core Unit_4

24. Unhook the 2G Spring at two locations and remove the 2 Group Frame Block Assy from the Linear Guide Barrel_B.

 

Tweezers

2 Group Frame Block Assy

2 Group Frame Block Assy

Linear Guide Barrel_B

2G Spring

2G Spring

Installation
1.   While matching the cabinet numbers of the Linear Guide Barrel_B and the 2 Group Frame Block Assy, insert the three projections of the 2 Group 

Frame Block Assy into the three vertical grooves of the Linear Guide Barrel_B.

2.   Pull out the two hooks of the 2G Spring with tweezers and hook them to the 2 Group Frame Block Assy.

 

2 Group Frame Block Assy 

2 Group Frame Block Assy 

Linear Guide Barrel_B

Vertical groove

Vertical
grooves

Tweezers

Cabinet number

Cabinet number

Projections

2G Spring

2G Spring