The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
Text excerpt from page 12 (click to view)
DV-303/DVF-5020/K5020
DISASSEMBLY FOR REPAIR
2-15 Disassembling the Intermediate Chassis
1. Push the stopper downward, then rotate it until it contacts the Vertical cam. 2. Release the 2 tabs.
2-17 Disassembling the Pulley Gear and Deceleration Gear
1. Remove the screw. 2. Remove the pulley gear. 3. Remove the belt. 4. Remove the deceleration gear.
2-16 Disassembling the Vertical cam and Drive gear
1. Rotate the Vertical cam until it reaches the contact position. 2. Lift the Vertical cam straight upward to pull it out. 3. Remove the Drive gear.
2-18 Disassembling the Mechanism Loading C.B.A.
1. Remove the 2 screws.
2. Remove the 2 screws. 3. Release the three tabs.