Sony Digital8 DCR-TRV250 Service Manual page 126

COVER COVER
4-3. PRINTED WIRING BOARDS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS
• : Uses unleaded solder.
• : Circuit board
: Flexible board
Pattern from the side which enables seeing.
: pattern of the rear side
(The other layers' patterns are not indicated)
• Through hole is omitted.
• Circled numbers refer to waveforms.
• There are a few cases that the part printed on diagram
isn't mounted in this model.
• C: panel designation
Board Name Parts Location
VC-304
LB-090
4-3. PRINTED WIRING BOARDS
4-3. PRINTED WIRING BOARDS
Waveforms
4-49 4-45
– –
• Chip parts.
Transistor
C 6 5 5 4 4 5 6 5
B E 1 2 3 3 2 1 1 2
1 2 2 1 3
5 4 3 3 4 5 2
Total Number of Layers
4 layers
2 layers
4-35
DCR-TRV250
Diode
4 4 5 3 3 3
3 3 2 1 2 1 2 1 2 1
4 1 2 3 4 4 3
1 4 3 2 1 1 2
Pattern
Layers Not Indicated
2, 3 layers
–
1 2 3
6 5 4
3 4
2 1