Yamaha RX-E400 - Printed Circuit Board; Operation P.C.B. (Lead Type Device View); Main (1) P.C.B. (Foil side)

ABCDEFGH
1
2
3
4
5
6
RX-E400
14
CH 2
CH 1
Point q (Pin 11 of IC700)
V : 2V/div, H : 10µsec/div
DC, 1 : 1 probe
0V
Point e
CH 1 : Collector of Q701
CH 2 : Collector of Q702
V : 2V/div (CH 1)
V : 5V/div (CH 2)
DC, 1 : 1 probe, H : 0.5sec/div
Point w (Pin 13 of IC700)
V : 2V/div, H : 50nsec/div
DC, 1 : 1 probe
0V
AC CORD : OFFAC CORD : ON
■ PRINTED CIRCUIT BOARD (Foil side)
0V
0V
OPERATION P. C. B. (Lead Type Device View)
DG PRY 12S F1 F2
MAIN (1)
W705
#3
PLAYSP —VP PROPS VOLDN PRO-I CLK DAT-O MUT-T SYSIO
ST/MO
TH
DES
VOLUP
CE
DAT-I
MUT-A
STA
MAIN (1)
PRESET/TUNING
INPUT
BALANCE
PRESET/BAND
AUTO/
MAN’L
MEMORY DISPLAY
BASS
TREBLE
TINR
TOUTR
TFBR
E E
TOUTL
TFBL
TINL
E
HP-R
HP-L
MAIN (3)
#2
W706
STANDBY/ON
PHONES
TIMER
OPERATION P. C. B. (Surface Mount Device View)
2 1
3
1
30
31
50
51
80
81
100
Ref. No. Location
D701 D5
D702 D5
D703 D5
D705 E4
D706 E5
D707 E5
D708 E5
D709 E5
D710 E5
D711 E5
●
Semiconductor Location
Ref. No. Location
IC700 D5
Ref. No. Location
Q700 E2
Q701 E5
Q702 E2
Q703 E5