Grundig GV 900 SV/1 Servise Manual page 57

GV 900..., GV 940...
Netzteil
Power Supply
Alimentation
AT45V
D9602
AT21V
(26V)
!
D9603
Q9802
Q9701
AT12V
D9604
10V
AT = All Time Voltage
Over Voltage Protection
AT 5V
D9612
Q9805
AT-25V
D9607
R9601
!
D9601
GRUNDIG Service
I-Source
PC33V
D9902
9V
Q9902
D9901
Q9909
Q9910
21V
Q9904
D9904
Q9903
D9903
SAT_OUT
Q9903
11,2V
Q9905
Q9906
Q9704
Q9908
!
D9909
6,2V
D9611
IC901
Q9603
IC9601
D9802
5,6V D9910
Q9801
Fehlersuchdiagramme / Troubleshooting / Schémas de dépistage d'erreurs
1; 16
Q1401 Q1402
A T 5V 4
7; 14
PC 5V
PC 5V
X360_SPEED 96
X260_SPEED 91
M12V/ 20V
Capstanmotor
Loading-
M12V
a. Drum-
Motor
L = LPR Stby
STBY+CTL 13
H = Stby / On
STBY 10.5V
D7881; D7882
SE Models only
PC9V
(P Con; U / Function)
L= Stby ; LP Stby
H= On
P_CON 94
Fold Back
STBY 5V
PC5V
AT 5V
Q 703 BACK UP 5V
73
36
25
RESET
POWER_FAIL (H) 1
STBY_CONT_SKEW (L) 12
STBY 5V 18
STBY-25V 16
FILAMENT-
FILAMENT+
TU / IF
C
NPN
B
C
B
E
E
E
E
B
C B
PNP
C
AT5V
79
85
Q702 Q701
End Start
Mechanism
AT5V
10
8
Euro-AV Control
AV LINK DET.
Key 1
87
AT5V
88 Key 2
RCM
801
5
Q7801
Keyboard Control / Drive Control
3 - 25