
therefore require the special handling techniques described under the
"ELECTROSTATICALLY SENSITIVE (ES) DEVICES" section of this service manual.
5.1.16. REPLACEMENT PROCEDURE FOR LEADLESS (CHIP) COMPONENTS
The following procedures are recommended for the replacement of the leadless components used in
this unit.
1. Preparation for replacement
A. Soldering Iron
Use a pencil-type soldering iron that uses less than 30 watts.
B. Solder
Eutectic Solder (Tin 63 %, Lead 37 %) is recommended.
C. Soldering time
Do not apply heat for more than 4 seconds.
D. Preheating
Leadless capacitor must be preheated before installation. - (266 °F ~
302 °F)
(130 °C ~150 °C) for about 2 minutes.
Note:
A. Leadless components must not be reused after removal.
B. Excessive mechanical stress and rubbing of the component
electrode must be avoided.
2. Removing the leadless component
Grasp the leadless component body with tweezers and alternately
apply heat to both electrodes. When the solder on both electrodes is
melted, remove the leadless component with a twisting motion.
Note:
A. Do not attempt to lift the component off the board until the
component is completely disconnected from the board by a twisting
action.
B. Be careful not to break the copper foil on the printed circuit board.
Fig. 10-1
3. Installing the leadless component
A. Presolder the contact points on the circuit board.
Fig. 10-2
22
Summary of Contents for OmniVision PV-QV201
Page 9: ...2 Fault indication will be displayed in F I P as shown Fig 2 2 FIg 2 3 9 ...
Page 13: ...5 1 4 1 3 Service Position 2 2 Model M N Fig 4 2 2 13 ...
Page 27: ...Fig D2 6 1 2 1 Notes in chart 27 ...
Page 30: ...Fig D5 2 30 ...
Page 32: ...32 ...
Page 33: ...6 2 2 Inner Parts Location Fig J1 1 33 ...
Page 34: ...34 ...
Page 36: ...Fig J2 1 2 36 ...
Page 67: ...11 2 MECHANISM BOTTOM SECTION 67 ...
Page 68: ...11 3 CASSETTE UP COMPARTMENT SECTION 68 ...
Page 70: ... Model PV V4511 PV V4521 PV V4521 K VHQ 451 70 ...
Page 71: ... Model PV V4611 71 ...
Page 73: ... Model PV V4611 73 ...
Page 78: ...12 2 MECHANICAL REPLACEMENT PARTS LIST MECHANICAL REPLACEMENT PARTS 78 ...
Page 81: ... 81 ...
Page 88: ... 88 ...
Page 90: ...90 ...
Page 95: ...95 ...
Page 105: ...105 ...
Page 109: ...109 ...
Page 145: ...1 2 Schematic Diagram Circuit Board Layout 2 ...