JVC HM-DH30000U Service Manual

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

Contents

2-82.2.7 Loading motor1. How to remove(1) Remove the belt wound around the worm gear.(2) Open the two lugs of the motor guide and remove theloading motor, loading motor board assembly and motorguide altogether by pulling them up.(3) When replacing the loading motor board assembly, takecare with the orientation of the loading motor. (Install sothat the loading motor label faces upward.)(4) When the motor pulley has been replaced, choose thefitting dimension as indicated in Fig.2-2-7a.2.2.4 Pinch roller arm assembly1. How to remove(1) Remove the spring from the hook of the press lever as-sembly.(2) Remove the slit washer and remove the pinch roller seat2. (See Fig.2-2-4a.)(3) Remove the pinch roller arm assembly by pulling it up.Fig. 2-2-5a2.2.6 A/C head1. How to remove(1) Remove the two screws (A) and remove the A/C headtogether with the head base.(2) When replacing only the A/C head, remove the threescrews (B) while controlling the compression spring.Fig. 2-2-6aFig. 2-2-6cFig. 2-2-4a2.2.5 Guide arm assembly and press lever assembly1. How to remove(1) Remove the spring and expand the lug of the lid guide inthe arrow-indicated direction. Then remove the guide armassembly by pulling it up.(2) Remove the press lever assembly by pulling it up. (SeeFig.2-2-5a.)TensionspringPress leverassemblyGuide armassemblyLugLid guideHead baseScrews(A)A/C headCompressionspringsHead baseA/C head boardassemblyA/C headScrews(B)Fig. 2-2-6b2. How to install(1) To make the post-installation adjustment easier, set thetemporary level as indicated in Fig.2-2-6c. Also make surethat the screw center (centre) is brought into alignmentwith the center (centre) position of the slot.Head baseHead baseScrewA/C headA/C head12.4 mmPinch roller seat2Pinch roller armassemblyPinch roller arm assemblySlit washerSpringPress lever assemblyFig. 2-2-3iRelay gearDrive gear Limit gearGuide holeNotches NotchBAAB