Sony Trinitron HMD-A230 Service Manual page 25

HV ADJ
HV Regulator
D board
Circuit Check
HV Protector D board
Circuit Check
Beam Current D board
Protector Circuit
Check
Part Replaced ([)
RV501
Part Replaced (])
IC501, C532, C534,
C539, C553, C554,
C555, C556, C558,
C561, R540, R541,
R542, R544, R564,
R567, R568, RV501,
T501 (FBT)
IC607, IC901, D515,
D517, C540, C542,
C544, C951, R510,
R543, R547, R549,
R552, R595,
T501 (FBT)
IC605, IC607, IC901,
C535, C541, R545,
R546, R548, R550,
R596, R934,
T501 (FBT)
Terminal name of semiconductors in silk screen
printed circuit ( * )
Device Printed symbol Terminal name
Collector
1 Transistor
Base
Collector
Transistor
2
Base
Cathode
3
Diode
Cathode
4
Diode
Anode
Cathode
5 Diode
Anode
Common
Diode
6
Anode
Common
Diode
7
Anode
Common
8
Diode
Anode
Common
Diode
9
Anode
Common
0 Diode
Cathode
Common
qa
Diode
Cathode
Anode
Diode Anode
qs
Cathode
Transistor
Drain
qd
(FET)
Transistor
Drain
qf
(FET)
Transistor
qg
(FET)
qh Transistor
–
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Circuit
Emitter
Emitter
Anode
(NC)
(NC)
Cathode
Cathode
Anode
Anode
Cathode
Cathode
Cathode
Anode
Anode
Source
D D
Gate
G G
Source
S S
Gate
D D
Source
Drain G G
Gate
S S
Emitter
Collector
Base
Ver.1.6