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5-12. PRINTED WIRING BOARD – SUB Section – •
SUB BOARD
(SIDE A)
A
K
LED801
(DISC SLOT ILLUMINATION)
LED801
A
K
SUB BOARD
(SIDE B)
5-13. SCHEMATIC DIAGRAM – SUB Section –
CN801
14P
SIR
SIRCS
+B
+B
KEY-0
K1
KEY-1
NC
NC
FL_W
FLASH_W
GND
GND
NC
NC
(Page 33)
LDA
LCD-DATA
LCE
LCD-CE
LCK
LCD-CLK
+B
+B
D-SW
DOOR-SW
14
GND
GND
GND
FLASH_W
FL_W
LCD-DATA
LDA
LCD-CE
LCE
LCD-CLK
LCK
KEY-1
K1
KEY-0
DOOR-SW
D-SW
(Page 30)
DOOR-IND
SIRCS
SIR
+B
+B
+B
+B
1
See page 23 for Circuit Boards Location.
LSW801
C
CN801
KEY BOARD
CN900
(Page 32)
11
1-687-862-
(11)
B
MAIN BOARD
CN370
(Page 27)
1
14
11
1-687-862-
(11)
LED801
CL-270SR
DISC SLOT
ILLUMINATION
LSW801
• Waveforms
– SERVO Board –
1 IC1 1, 2 (I, J)
300 mVp-p
2 IC1 ek (RF)
1.1 Vp-p
3 IC1 ef (FE)
Approx.
150 mVp-p
4 IC1 wh (TE)
Approx.
1.1 Vp-p
5 IC4 wa (OSCO)
3.9 Vp-p
44 ns
31
31
– MAIN Board –
6 IC7 i; (X0)
qa IC90 4 (OSCO)
1.2 Vp-p
54 ns
qs IC600 qs (OSCOUT)
qd IC600 qh (XOUT)
31 µ s
– KEY Board –
qf IC901 uf (OSC)
22 µ s
MDX-CA790X
5 Vp-p
230 ns
2.6 Vp-p
36 ns
3.5 Vp-p
2.6 Vp-p
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