Sanyo VHR-770 Service Manual

Also see for VHR-770: Instruction manual

1. DISASSEMBLY1-1. REMOVAL OF CABINET, MECHANISM UNIT, AND MAIN BOARDREMOVING THE CABINET PARTS (Fig. l-l-l) 1.1.2.Remove the cabinet and bottom cover by removing the fourscrews @ and four screws ~. 2.Remove the front panel by removing the locks of the clamps 3.(A) using a screwdriver, etc. and slightly rotating the bottom ~,part in the direction of the arrow.Notes: l Electrical adjustments for the this model can beperformed with only the cabinet removed.l When replacing the bottom cover, do not tighten thescrews @ too much. Excess tightness may damagethe screws taps on the chassis.5.REMOVING THE MECHANISM MAIN UNIT AND THECP-1 PWB ASSEMBLY (Fig. 1-1-2 and l-l-3)After removing the cabinet parts, remove the mechanism unitand the CP-1 PWB assembly connected as follows.Spread out the lock clamps (C) in the arrow directionslightly and remove the TM-1 PWB as shown in Fig. 1-1-2.Remove the screw o at the chassis.Remove the screw @in the chassis, the screw (6), and theholder in this order.Remove the two screws n and two screws @ of themechanism unit. The two screws @of the cassette tray canbe removed easily by pushing the tray lock lever in thearrow direction to remove the lock as shown in the enlargeview A and by pushing the lid opener lever in the arrowdirection to remove the lock as shown in the enlarge viewB.Lift up the whole mechanism unit and main board (CP-1PWB assembly), and as shown in Fig. 1-1-3, push the twolock clamps (D) of the chassis in the arrow direction so thatthey can be removed from the chassis.M-PF2HNrTA-lFront Panel Unitver(2J3Fig. 1-1-1-5-