MHC-GRX9900
– 41 – – 42 –
05
DECK A
PLUNGER
DECK B
PLUNGER
(DECK A PLAY)
(DECK A HALF)
(DECK A 120/70)
(DECK A REC)
(DECK B HALF)
(DECK B PLAY)
(DECK B 120/70)
(DECK B REC)
21
21
E
4
1 2
3 4
1 2
3
( )
DECK B
PLUNGER
DECK A
PLUNGER
(CAPSTAN)
(DECK A 120/70)
(DECK A HALF)
(DECK A REC)
(DECK B HALF)
(DECK B REC)
(DECK B 120/70)
ROTATION DETECT SENSOR
(DECK A)
ROTATION DETECT
SENSOR (DECK B)
(DECK A PLAY) (DECK B PLAY)
E
CONTROL SWITCH
7-12. PRINTED WIRING BOARD – LEAF SW Board –
•
See page 28 for Circuit Boards Location.
7-13. SCHEMATIC DIAGRAM – LEAF SW Board –
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : TAPE PLAY
( ) : RECORD
∗
: Impossible to measure
(Page 49)
(Page 43)
Q113 E-9
Q161 C-9
Q162 C-9
Q163 E-9
Q191 E-12
Q192 E-10
Q201 D-9
Q251 C-9
Q331 C-1
Q332 C-2
Q333 C-2
Q334 C-2
Q335 D-1
Q336 F-1
Q337 F-1
Q338 F-1
Q339 F-1
Q340 E-1
Q341 E-1
Q342 F-1
Q343 E-1
Q401 F-12
Q402 E-12
Q411 G-2
Q412 G-3
Q431 G-12
Q432 G-11
Q433 F-11
Q434 F-11
Q435 F-11
Q436 F-11
Q437 G-12
Q439 F-12
Q471 F-2
Q501 D-7
Q508 D-7
Q509 E-7
Q801 H-10
Q803 G-10
Q804 G-9
Q831 G-10
Q832 G-10
Q851 J-10
Q881 I-9
Q901 H-2
Q902 I-1
Q903 H-1
Q904 G-4
Q905 G-4
Q907 G-5
Q908 G-4
Q909 I-4
Q913 H-1
Q914 G-2
Q923 H-1
Q951 G-2
Q952 H-1
Ref. No. Location
Ref. No. Location
D141 E-10
D191 E-12
D331 E-1
D333 F-1
D334 E-1
D335 F-1
D401 G-11
D403 F-12
D405 H-6
D406 J-4
D407 I-2
D411 G-3
D501 D-7
D502 E-6
D503 D-6
D504 D-7
D505 D-7
D506 D-7
D509 F-2
D607 E-5
D644 C-8
D801 J-11
D802 G-9
D803 G-11
D831 I-6
D832 J-7
D851 J-10
D852 G-9
D881 H-9
D901 J-4
D902 J-4
D903 J-4
D904 I-4
D905 I-1
D906 H-1
D907 J-5
D908 I-5
D909 J-5
D910 J-5
D915 I-4
D921 H-4
D922 G-4
D923 G-4
D924 F-2
D925 G-4
IC101 C-10
IC301 B-3
IC381 A-12
IC501 D-5
IC502 D-7
IC801 H-10
IC901 G-6
IC902 G-4
IC903 H-4
Q111 D-10
Q112 D-10
• Semiconductor Location