Bardzo dobra jakość skanu, przystępna cena. Instrukcja serwisowa okazała się przydatna przy "reanimowaniu" dwudziestoparoletniego decka, który teraz pięknie gra :)
Documentation made available quickly and It is good quality. Thanks.
Tekstowy podgląd strony 7 (kliknij aby zobaczyć)
D
C G
A
I
H
GND B E
F
A Power ON 9.65 VAC
Plug out 0
B 10.52V
0
C 5.76V
0
D 10.45V
0
E 0.78V
0
F 0.12V
4.13V
G Pulse
0
H 5.07V
4.30V
I -23.9V
0
Voltage level is measured at the following condition. 1. Plug the power cord in AC outlet. 2. Mode switch position : REG, display 0.00 3. Put in the memory protection batteries. 4. Plug out : Plug out the power cord , the memory protection batteries in.
6-2. Reset circuit
VDD
S-80728AN
GND
When the voltage level at the pin no.17 of CPU is not stable, CPU does not work properly. To make a stable voltage, the reset IC(S-80728AN) is used for this circuit. In case the voltage level of VDD becomes down output terminof reset IC is out the stable voltage.
