Yamaha RX-SL80 Service Manual page 51

A B
1
PRINTED CIRCUIT BOARD (Foil side)
POWER (1)
W1
2
UCD-B
UCDG
UCD+B
UCH6OUT
UCDG_CH6
UCDG_CH6
UCH5OUT
UCDG_CH5
UCDG_CH5
3
POWER (3)
CB73
UCD UNIT [CH5] FLch
POWER
4
MAIN (1)
CB602
5
ERR
ENABLE
AGND_CH1
UCH1IN
AGND_CH1
UCH2IN
AGND_CH2
CLKOUT
6
Point t (Pin 5 of IC694)
V : 1V/div, H : 100µsec/div
DC, 1 : 1 probe
0V
7
C D
MAIN (3) P. C. B. Side A (Lead Free Solder Used)
UCD UNIT [CH5] FLch
INPUT / OUTPUT
MAIN (4) P. C. B. Side A (Lead Free Solder Used)
8 14
7 1
ERR
NC
ENABLE
AGND_CH3
UCH3IN
AGND_CH3
5
UCH4IN
AGND_CH4
CLKOUT
MAIN (2)
CB632
E F G
UCD UNIT [CH6] FRch
POWER
DIGITAL
CB308
1 4 4
1
1
8 5
8
8 5
UCD_TH
+5D
ERR
ENABLE
DGND
UCH5IN
AGND_CH5
UCH6IN
AGND_CH6
CLKOUT
H I
MAIN (4)
CB693
UCD_TH
+5D
ERR
ENABLE
DGND
UCH5IN
AGND_CH5
UCH6IN
AGND_CH6
CLKOUT
UCD UNIT [CH6] FRch
INPUT / OUTPUT
INPUT (1)
CB412
MUTE_C
MUTE_FS
CH1IN
AGND
CH2IN
AGND
CH3IN
AGND
CH4IN
AGND
4 CH5IN
AGND
CH6IN
-12V
+12V
DGND
5
+5D
MAIN (3)
CB662
J
RX-SL80
• Semiconductor Location
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
51