6
DVM-1845/745
3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when
removing it.
With Soldering Iron:
1. Using desoldering braid, remove the solder from
all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)
2. Lift each lead of the flat pack-IC upward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)
3. Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
4. Release the flat pack-IC from the CBA using
tweezers. (Fig. S-1-6)
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
Summary of Contents for DVM-1845/745
Page 13: ...13 DVM 1845 745 S 15 20 PCB Holder 19 DVD Main CBA Unit Fig D10...
Page 36: ...36 DVM 1845 745 DVD Main 2 4 Schematic Diagram...
Page 37: ...37 DVM 1845 745 DVD Main 3 4 Schematic Diagram...
Page 38: ...38 DVM 1845 745 DVD Main 4 4 Schematic Diagram...
Page 40: ...40 DVM 1845 745 AV 2 2 Schematic Diagram...
Page 41: ...41 DVM 1845 745 Changer 1 2 Function Power Switch Switch Schematic Diagram...
Page 43: ...43 DVM 1845 745 Relay Sensor Mecha Pick Up Unit Schematic Diagram...
Page 57: ...57 DVM 1845 745 Packing X10 X22 X21 X5 X2 X4 S2 S2 S3 S3 S1 A30 A30 A22 S10 X1 S4 Unit...
