JVC HM-DH30000U Service Manual

Also see for HM-DH30000U - D-VHS HDTV Digital Recorder: Instructions Service manual

Contents

2-132.2.17 Take-up lever, take-up head and control plateguide(1) Remove the spring of the take-up lever from the maindeck.(2) Remove the lug (A) of the take-up lever from the maindeck and pull out the take-up lever and the take-up headtogether.(3) Remove the screw (A).(4) Align the idler arm assembly pin in the center (centre) ofthe R section of the control plate guide, remove the con-trol plate guide lugs (B) and (C) from the main deck, andremove the control plate guide.Fig. 2-2-17aTake-up headScrew(A)Lug(A)Lug(B)Control plate guideTake-up leverLug(C)Idler arm assembly pin2.2.18 Capstan brake assembly1. How to remove(1) Move the lug (A) of the capstan brake assembly in thearrow-indicated direction so that it comes into alignmentwith the notch of the main deck. (See Fig. 2-2-18a.)(2) Remove the lug (B) of the capstan brake assembly fromthe main deck and remove the capstan brake assembly.Fig. 2-2-18aCapstan brake assemblyLug(A)Lug(B)2.2.19 Sub brake assembly (take-up side)1. How to remove(1) Remove the spring attached to the lid guide and subbrake assembly (take-up side).(2) Bring the lug (A) of the sub brake assembly (take-up side)into alignment with the notch of the main deck.(3) Remove the lugs (B) and (C) of the sub brake assembly(take-up side) from the main deck and remove the subbrake assembly (take-up side).Fig. 2-2-19aSpringSub brakeassembly(take-up side)Lug(B)Lug(A)Lug(C)Fig. 2-2-20aLug(D)Lug(C) SpringLug(E)Lug(A)Lug(B)Main brake assembly(take-up side)Reel disk(take-up side)Main brake assembly(supply side)Notch2.2.20 Main brake assembly (take-up side), reel disk(take-up side) and main brake assembly (supplyside)1. How to remove(1) Move the main brake assembly (take-up side) in the ar-row-indicated direction and remove the reel disk (take-up side).(2) Remove the spring attached to the main brake assembly.(3) Remove the lug (A) of the main brake assembly (take-up side) and pull out the lug (B) after bringing it into align-ment with the main deck notch.(4) Remove the lugs (C), (D) and (E) of the main brake as-sembly (supply side) from the main deck and pull themoff. (See Fig.2-2-20a.)(5) When installing the main brake assembly (take-up side),slide the brake lever in the direction as indicated by thearrow to prevent it from hitting the projection of the mainbrake assembly (take-up side). (See Fig.2-2-20b.)Fig. 2-2-20bProjection of the mainbrake assembly(take-up side)Rotary encoder guide(* 1)BrakeleverNote:• The parts with marked ( *) have different types of mechanisms (standard typeor high-speed FF/REW type).*1 : Uses the standard type mechanism only.