Printed Wiring Board; Leaf Sw Board - Sony HCD-vx550 Service Manual

HCD-VX550
7-12.

PRINTED WIRING BOARD

LEAF SW BOARD

DECK A (
PLUNGER
4
3
1 2
(DECK A PLAY)
16 (DECK A 120/70)
(DECK A HALF)
7-13. SCHEMATIC DIAGRAM LEAF SW BOARD
(CAPSTAN)
DECK B DECK A
PLUNGER PLUNGER
ROTATION DETECT SENSOR
(DECK A)
(DECK A 120/70)
(DECK A HALF)
(DECK A REC)
(DECK B HALF)
(DECK B REC)
(DECK B 120/70)
16
• Refer to page 23 for Circuit Boards Location.
)
4
3
(DECK B PLAY)
1 2
(DECK B 120/70)
(DECK B HALF)
(DECK A REC)
E
(Page 35)
CONTROL SWITCH
ROTATION DETECT
SENSOR (DECK B)
(DECK A PLAY)
(DECK B PLAY)
DECK B
PLUNGER
12
12
E
(Page 38)
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
( ) : RECORD
∗
: Impossible to measure
34 34
• Semiconductor Location
Ref. No. Location Ref. No. Location
D141 E-10 Q111 D-10
D191 D-12 Q112 D-10
D331 E-1 Q113 E-9
D333 F-1 Q161 C-9
D334 E-1 Q162 C-9
D335 F-1 Q163 E-9
D401 G-11 Q191 D-12
D403 F-12 Q192 E-10
D405 H-6 Q201 D-9
D406 I-4 Q251 C-9
D407 I-2 Q331 C-1
D411 G-1 Q332 C-2
D501 D-7 Q333 C-2
D502 E-6 Q334 C-2
D503 D-6 Q335 D-1
D504 D-7 Q336 F-1
D505 D-7 Q337 F-1
D506 D-7 Q338 F-1
D507 E-6 Q339 F-1
D509 F-2 Q340 E-1
D607 E-5 Q341 E-1
D644 C-8 Q342 F-1
D801 I-11 Q343 E-1
D802 G-9 Q401 F-12
D803 G-11 Q402 E-12
D831 I-6 Q411 G-1
D832 I-7 Q412 G-1
D851 I-10 Q431 G-12
D852 G-9 Q432 G-11
D881 H-9 Q433 F-11
D901 I-4 Q434 F-11
D902 I-4 Q435 F-11
D903 I-4 Q436 F-11
D904 I-4 Q437 G-12
D905 I-1 Q439 F-12
D906 H-1 Q471 F-2
D907 I-5 Q501 D-7
D908 I-5 Q508 D-7
D909 I-5 Q509 E-7
D910 I-5 Q801 H-10
D915 I-4 Q803 G-10
D917 F-4 Q804 G-9
D919 H-3 Q831 G-10
D921 H-4 Q832 G-10
D922 G-4 Q851 I-10
D923 G-4 Q881 I-9
D924 F-2 Q901 H-2
Q902 I-1
IC101 C-10 Q903 H-1
IC301 B-3 Q904 G-4
IC381 A-12 Q905 G-4
IC501 D-5 Q909 I-4
IC502 D-7 Q911 G-3
IC801 H-10 Q912 G-4
IC901 G-6 Q913 H-1
IC902 G-4 Q914 G-2
IC903 H-4 Q923 H-1
IC904 H-3 Q951 G-2
Q952 H-1