Onkyo HTP-420, Service Manual

Page: 13 / 49

ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
S
Supply Voltage (No Signal)
±
60 V
V
1
V
STAND-BY
GND Voltage Referred to -V
S
(pin 8) 90 V
V
2
Input Voltage (inverting) Referred to -V
S
90 V
V
2
- V
3
Maximum Differential Inputs
±
30 V
V
3
Input Voltage (non inverting) Referred to -V
S
90 V
V
4
Signal GND Voltage Referred to -V
S
90 V
V
5
Clip Detector Voltage Referred to -V
S
120 V
V
6
Bootstrap Voltage Referred to -V
S
120 V
V
9
Stand-by Voltage Referred to -V
S
120 V
V
10
Mute Voltage Referred to -V
S
120 V
V
11
Buffer Voltage Referred to -V
S
120 V
V
12
Bootstrap Loader Voltage Referred to -V
S
100 V
I
O
Output Peak Current 10 A
P
tot
Power Dissipation T
case
= 70
°
C 50 W
T
op
Operating Ambient Temperature Range 0 to 70
°
C
T
stg
, T
j
Storage and Junction Temperature 150
°
C
1
2
3
4
5
6
7
9
10
11
8
BUFFER DRIVER
MUTE
STAND-BY
-V
S
(SIGNAL)
+V
S
(SIGNAL)
BOOTSTRAP
CLIP AND SHORT CIRCUIT DETECTOR
SIGNAL GROUND
NON INVERTING INPUT
INVERTING INPUT
STAND-BY GND
TAB CONNECTED TO PIN 8
13
14
15
12
-V
S
(POWER)
OUT
+V
S
(POWER)
BOOTSTRAP LOADER
D97AU806
PIN CONNECTION (Top view)
THERMAL DATA
Symbol Description Typ Max Unit
R
th j-case
Thermal Resistance Junction-case 1 1.5
°
C/W
TDA7293
2/15