Schematic Diagram; Display Data - Yamaha CRX-E400 Service Manual

A B
RX-E400
SCHEMATIC DIAGRAM (OPERATION)
1
2
3
-28.8
-26.6
-26.6
-26.6
-24.5
-24.5
-26.7
-28.8
-29.1
2.7
2.5
2.5
1.8
4.9
0 4.9
0
4.9
4
4.9
4.9
5
q
6
7
Point w (Pin 13 of IC700)
Point q (Pin 11 of IC700)
V : 2V/div, H : 10µsec/div V : 2V/div, H : 50nsec/div
8
DC, 1 : 1 probe
DC, 1 : 1 probe
0V 0V
20
C D E
-26.7
-26.7
-26.7
-26.7
-26.7
-26.7
CPU
-26.7
-26.7
-26.7
-26.7
-26.7
-26.7
-26.7
-26.7
-26.7
0
0
0
0
0
0
0
0
w
0
4.9
4.7
0
P-19 [E-3]
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
CH 1
0V
CH 2
0V
AC CORD : ON AC CORD : OFF
F G
-24.1
-29.1
e
REGULATOR
4.9 5.5 11.9
5.5
6.1
6.1
0
4.8 5.5
11.9 11.9
RESET 11.2
4.7
0
6.7
7.3
0
0
0 0
P-19 [F-3]
H I J

DISPLAY DATA

V700 : 16-BT-67GN (V3579300)
$1
PATTERN AREA
$2
PIN CONNECTION
P-19 [F-3]
NOTE 1) F1, F2 ........ Filament
2) NP ............. No pin
3) NX ............. No extend pin
GRID ASSIGNMENT
ANODE CONNECTION
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
K L
q
*2
4) P1~P35 ...... Datum Line
5) 1G~16G ..... Grid
6) IC ............... Internal connection
7) Pin No.37 and 51 are connected internally.