Read Sony SA-NS400 Service Manual online
SA-NS400
26
MAIN BOARD (3/3) IC109 TAS5602DCAR (POWER AMP)
Pin No.
Pin Name
I/O
Description
1 to 3
PGNDA
—
Power ground reference for channel A output
4 to 6
PVCCA
—
Positive power supply for channel A output
7
NC
—
Not used. (Open)
8
DVDD
I
Digital power supply pin (+3.3 V)
9
DGND
I
Ground reference input for PWM and digital input
10
PWM_AP
I
Positive audio signal PWM input for channel A
11
NC
—
Not used. (Open)
12
PWM_BP
I
Positive audio signal PWM input for channel B
13
NC
—
Not used. (Open)
14
PWM_CP
I
Positive audio signal PWM input for channel C
15
NC
—
Not used. (Open)
16
PWM_DP
I
Positive audio signal PWM input for channel D
17
HIZ
—
Forces the output to high impedance state
18
RESET
I
Enable/Disable pin
19
FAULT
O
Short circuit fault
20
SE/BTL
I
Single-ended or Bridge-tied output select terminal
21
THERM
O
Thermal warning output fl ag
22
NC
—
Not used. (Open)
23 to 25
PVCCD
—
Positive power supply for channel D output
26 to 28
PGNDD
—
Power ground reference for channel D output
29, 30
OUTD
O
Channel D = h-bridge output
31 to 33
PGNDC
—
Power ground reference for channel C output
34, 35
OUTC
O
Channel C = h-bridge output
36, 37
PVCCC
—
Positive power supply for channel C output
38
BSC
I/O
Bootstrap I/O for channel C high-side FET
39
VCLA_CD
—
Internally generated voltage supply for channel C and D bootstrap
40
BSD
I/O
Bootstrap I/O for channel D high-side FET
41
BYPASS
O
VCC/8 reference for analog cells
42
AGND
—
Analog ground
43
AVCC
—
Analog power supply pin (+18.2 V)
44
NC
—
Not used. (Open)
45
BSA
I/O
Bootstrap I/O for channel A high-side FET
46
VCLA_AB
—
Internally generated voltage supply for channel A and B bootstrap
47
BSB
I/O
Bootstrap I/O for channel B high-side FET
48, 49
PVCCB
—
Positive power supply for channel B output
50, 51
OUTB
O
Channel B = h-bridge output
52 to 54
PGNDB
—
Power ground reference for channel B output
55, 56
OUTA
O
Channel A = h-bridge output
49
PCON-3(PVDD)
O
POWER CONTROL
50
PCON-2(1.2v)
O
POWER CONTROL
51
POWER_CONT1
O
POWER CONTROL
52
LED_DIMMER
O
LED DIMMER CONTROL
53
LED_POWER(BLUE)
O
POWER LED CONTROL
54
LED_STANDBY
O
STANDBY LED CONTROL
55
LED_PLAY(WHITE)
O
PLAY LED CONTROL
56 to 61
NO USE
O
Not used. (Open)
62
Vcc2
—
BUP 3.3V (= Vcc1)
63
NO USE
O
Not used. (Open)
64
Vss
—
Ground
65
NO USE
O
Not used. (Open)
66
BCO_RESET_KEY_
IN
I
BridgeCo Reset Key in
67
BCO_XAMP_AMUTE
I
BridgeCo AMP MUTE in
68
POWER_SW_DET
I
Power Switch Detect
69 to 72
NO USE
O
Not used. (Open)
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