Radio Shack TRS-80 Service Manual page 10

5-Meg Hard Disk
Output Voltages Vl +5V
4.95
V3 +12V 11.4
V4 -12V 11
Output Current Vl +5V 2.50
V3 +12V
.75
V4 -12V .005
Ripple Voltages
Vl +5V
V3
+12V
V4 -12V
Efficiency
70
Hold Up Time
Full Load, Low Line
10
Full Load,
Norn
Line
16
Over-Voltage Protection
5.80
®
Service Manual
J
© £a —J
Volts
12 12
.
6
Volts
-12 -15
Volts
5.0
Amps
2.0
Amps
.10
Amps
50
mv
150 mv
150 mV
6.80
mSec
mSec
Volts
Power Supply (Secondary Drive) Operating Characteristics
Min
Typ Max Units
Vin Range
Input Select 115V
Input Select 230V
95
180
115
230
135
264
Vrms
Vrms
Line Frequency
47 50/60
63
Hz
Output Voltages
+5V
+12V
-12V
4.75
11.4
-11
5
12
-12
12.6
-15
Volts
Volts
Volts
Output Current
+ 5V
+12V
-12V
.45
.75
.005
2.0
.10
Amps
Amps
Amps
Load Regulation
(measured by varying
load on
considered output
from typ
to
either min or max
rated
load) +5V
5
12V -5
-12V
-8.3
5
5
25
jo
/
iaelf
-
8
-