Marantz BD7003 Service Manual page 12

3. The flat pack-IC on the CBA is affixed with glue, so 3. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each be careful not to break or damage the foil of each
pin or the solder lands under the IC when pin or the solder lands under the IC when
removing it.
removing it.
CBA
CBA
Masking Masking
Tape Tape
Tweezers Tweezers
With Soldering Iron:
With Soldering Iron:
1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from
Hot-air Hot-air
Flat Pack-IC
Flat Pack-IC
Desoldering Desoldering
Machine Machine
Flat Pack-IC Flat Pack-IC
2. Lift each lead of the flat pack-IC upward one by 2. Lift each lead of the flat pack-IC upward one by
Fig. S-1-2 Fig. S-1-2
3. Bottom of the flat pack-IC is fixed with glue to the 3. Bottom of the flat pack-IC is fixed with glue to the
4. Release the flat pack-IC from the CBA using 4. Release the flat pack-IC from the CBA using
1-4-2
10
1-4-2
all pins of the flat pack-IC. When you use solder all pins of the flat pack-IC. When you use solder
flux which is applied to all pins of the flat pack-IC, flux which is applied to all pins of the flat pack-IC,
you can remove it easily. (Fig. S-1-3)
you can remove it easily. (Fig. S-1-3)
Desoldering Braid Desoldering Braid
Flat Pack-IC Flat Pack-IC
one, using a sharp pin or wire to which solder will one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4) machine. (Fig. S-1-4)
Fine Tip Fine Tip
Soldering Iron Soldering Iron
CBA; when removing entire flat pack-IC, first apply CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6) up. Then remove (glue will be melted). (Fig. S-1-6)
tweezers. (Fig. S-1-6) tweezers. (Fig. S-1-6)
Soldering Iron Soldering Iron
Fig. S-1-3 Fig. S-1-3
Sharp Sharp
Pin Pin
Fig. S-1-4 Fig. S-1-4
BDN_SN
DVDP_SN