Sony XM-554ZR Service Manual page 24

XM-554ZR
NOTE FOR REPLACEMENT OF THE
TRANSISTORS:
The transistors Q110, 111, 210, 211, 310, 311, 410 and 411 have
two different ranks: P rank and Y rank.
The rank of these transistors need to be selected properly according
to each channel. When replacing any one of these transistors, check
its rank and replace with the appropriate transistor of the same rank.
Rank Q110, 210, 310, 410
2SC5100-P
P
(8-729-024-79)
2SC5100-Y
Y
(8-729-024-80)
DISCRIMINATION:
2
Q111, 211, 311, 411
2SA1908-P
(8-872-024-76)
2SA1908-Y
(8-872-024-77)
A1908: 2SA1908
C5100: 2SC5100
P: RANK P
Y: RANK Y
TABLE OF CONTENTS
1. DIAGRAMS
1-1. Printed Wiring Board .......................................................... 4
1-2. Schematic Diagram -Main Section (1/2)- .......................... 5
1-3. Schematic Diagram -Main Section (2/2)- .......................... 6
2. EXPLODED VIEWS
2-1. Heat Sink (Main) Section .................................................... 7
2-2. Main Board Section ............................................................ 8
3. ELECTRICAL PARTS LIST
.......................................... 9