Yamaha MDX-E100 Service Manual page 45

A B
SCHEMATIC DIAGRAM (DIGITAL)
1
2
3
V301 : 15-BT-53GN
*2 $2
4
PATTERN AREA
q $1
PIN CONNECTION
5
Note 1) F1, F2 ........ Filament 3) NX .............. No extend Pin 5) 1G~15G ..... Grid
2) NP .............. No Pin 4) P1~P35 ...... Datum Line
GRID ASSIGMENT
6
ANODE CONNECTION
7
8
C D E
4.9
0
0
0
4.9
0.1
0
4.9
0
0
0
4.9
0 0
0
4.9
0
0
4.9
4.9
DIR
0
Point r
V : 2V/div
DC range
0V
F G
P-E49/J47
[A-3]
0
0
0.1
2.2
4.9
0
0
4.9
4.9
r
4.9
0
4.9
4.9
0
2.4
0
2.3
0
0
IC701 : NJM2904M-T1 IC706 : TC74VHC04F
Dual OP-Amp Hex Inverters
(Pin 13 of IC703)
H : 50 nsec/div
1 : 1 probe 1A 1
OUT 1 +V
1 8 CC
1Y 2
–IN 1 2 7 OUT 2
+ – + –
2A 3
+IN 1 3 6 –IN 2
2Y 4
–V 4 5 +IN
CC 2
3A 5
3Y 6
V 7
SS
H I
DEQ
2.4
2.4
2.4
IC702 : HD74HC02FPEL
Quad 2 Input NOR
14 V DD
14 13 12 11 10 9 8
13 6A
12 6Y
11 5A
10 5Y
* All voltages are measured with a 10MΩ/DC electric volt meter.
1 2 3 4 5 6 7
9 4A * Components having special characteristics are marked Z and must be
replaced with parts having specifications equal to those originally installed.
8 4Y
* Schematic diagram is subject to change without notice.
J K
MDX-E100
4.9 2.6
3.2
3.2
0
2.6
0
2.6
0
2.6
0
2.6
0
2.6
2.6
0 0
DIT
E-50/J-48