Digital P.c.b. - Yamaha DVR-S150 Service Manual

A B
DVR-S150/NX-P150
DVR-S150 PRINTED CIRCUIT BOARD (Foil side)
1

DIGITAL P.C.B.

(Side A) Lead Free Solder Used
1
2
2
3
4
MAIN (2)
Point 1 (Pin 29 of IC3)
V: 2V/div, H: 20nsec/div
DC, 1 : 1 probe
5
0V
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6
C
MAIN (3)
CB122 CB221
Point 2 (Pin 13 of IC6)
V: 2V/div, H: 40nsec/div
DC, 1 : 1 probe
NOTE)
The DIGITAL P.C.B. actually has a four-layer pattern structure (part face pattern, internal
pattern 1, internal pattern 2 and solder face pattern) but it is shown as "part face pattern
0V
+ solder face pattern" in this diagram.
NOTE)
D E
DVR-S150
DIGITAL P.C.B.
(Side B) Lead Free Solder Used
Except J
F G H