A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
RX-SL80
51
Side A (Lead Free Solder Used)
MAIN (3) P. C. B.
Side A (Lead Free Solder Used)
MAIN (4) P. C. B.
UCD UNIT [CH5] FLch
POWER
+VB
+VB
-VB
-VB
GND
VDR
ENABLE
ERR
+VB
+VB
-VB
-VB
GND
VDR
ENABLE
ERR
OUTPUT
OUTPUT
OUTPUT
GND
GND
GND
NONINV
INV
CLOCK
OUTPUT
OUTPUT
OUTPUT
GND
GND
GND
NONINV
INV
CLOCK
UCD UNIT [CH5] FLch
INPUT / OUTPUT
UCD UNIT [CH6] FRch
INPUT / OUTPUT
UCD UNIT [CH6] FRch
POWER
UCD_TH
+5D
ERR
ENABLE
DGND
UCH5IN
AGND_CH5
UCH6IN
AGND_CH6
CLKOUT
UCD-B
UCDG
UCD+B
UCH6OUT
UCDG_CH6
UCDG_CH6
UCH5OUT
UCDG_CH5
UCDG_CH5
MUTE_C
CH1IN
CH2IN
CH3IN
CH4IN
CH5IN
CH6IN
+12V
MUTE_FS
AGND
ERR
MUTE_C
UCD_TH
ENABLE
MUTE_FS
CLK
AGND
AGND
AGND
AGND
-12V
DGND
+5D
ERR
ENABLE
AGND_CH1
UCH1IN
AGND_CH1
UCH2IN
AGND_CH2
CLKOUT
NC
ENABLE
AGND_CH3
UCH3IN
AGND_CH3
UCH4IN
AGND_CH4
CLKOUT
ERR
ERR
ENABLE
DGND
UCH5IN
AGND_CH5
UCH6IN
AGND_CH6
CLKOUT
+5D
UCD_TH
1
7
14
8
5
8
4
1
5
8
4
1
8
1
5
4
5
POWER (1)
W1
MAIN (1)
CB602
POWER (3)
CB73
MAIN (2)
CB632
MAIN (3)
CB662
MAIN (4)
CB693
DIGITAL
CB308
INPUT (1)
CB412
■
PRINTED CIRCUIT BOARD (Foil side)
Ref. No.
Location
D661
C3
D662
F3
D663
E2
D664
E2
D665
F2
D666
F3
D667
F3
IC691
E5
IC692
F5
IC693
G5
IC694
D5
Q661
D2
Q662
C2
Q663
F2
Q664
D2
Q665
F2
Q666
E2
Q667
E2
Q668
E2
Q691
D5
Q692
D5
Q693
D5
Q694
D5
Q695
D5
• Semiconductor Location
Point
t
(Pin 5 of IC694)
V : 1V/div, H : 100
µ
sec/div
DC, 1 : 1 probe
0V