Page 5 KD-S7350/KD-S690 2.1.3 Removing the heat sink (See Fig.4.) (1) Remove the two screws B and two screws C on the left side of the main body. Therefore, pay attention to such burrs in the case of preforming repair of this system. Suspension spring (L) Suspension spring (R) (1) Remove the two suspension springs (L) and (R) attaching the chassis unit to the frame. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check. Page 12 KD-S7350/KD-S690 2.2.5 Removing the clamper assembly (See Figs.10 and 11) • Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. Heat sink Fig.4 2.1.4 Removing the bottom cover (See Figs.5 and 6.) • Prior to performing the following procedure, remove the front Joint c panel assembly, front chassis assembly and heat sink.
Page 26 KD-S7350/KD-S690 3.3 Maintenance of laser pickup 3.4 Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn off the power switch and, disconnect the power cord with a alcohol soaked cotton swab. Page 6 KD-S7350/KD-S690 2.1.6 Removing the main board assembly Main board (See Fig.8.) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, heat sink, bottom cover and rear bracket (1) Remove the two screws G attaching the main board. Page 4 KD-S7350/KD-S690 SECTION 2 Disassembly method 2.1 Main body section 2.1.1 Removing the front panel assembly Front panel assembly (See Fig.1.) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly in the direction of the arrow.
Page 14 KD-S7350/KD-S690 2.2.7 Removing the pickup unit Pickup unit (See Figs.14 to 18) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw D and pull out the pu. shaft holder from Part e the pu. Page 3 KD-S7350/KD-S690 1.2 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. Page 16 KD-S7350/KD-S690 2.2.11 Removing the mode sw. / select lock arm Link plate Joint t (See Figs.22 and 23) Mode sw. • Prior to performing the following procedure, remove the top plate assembly.