Yamaha BBT 500H, Руководство по обслуживанию

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14
BBT500H
PIN
NO.
I/O NAME FUNCTION
AK5383VF (X0578A00) A/D
PIN
NO.
I/O NAME FUNCTION
DM: IC122
1 VREFL O Voltage refernce
2 GNDL - Ground
3 VCOML O Common
4 AINL+ I Analog input +
5 AINL- I Analog input -
6 ZCAL I Zero calibration
7 VD - Voltage d3.3V
8 DGND - Ground
9 CAL O Calibration status
10 RST I Reset
11 SMODE2 I Serial interface mode2
12 SMODE1 I Serial interface mode1
13 LRCK I/O L/R Clock
14 SCLK I/O Serial data clock
15 SDATA O Serial data
16 FSYNC I/O Flame synchronize
17 MCLK I Master clock
18 DFS I Double fast sampling mode
19 HPFE I HPF Enable
20 TEST I Test
21 BGND - Ground
22 AGND - Ground
23 VA -
V5V
24 AINR- I Analog input -
25 AINR+ I Analog input +
26 VCOMR O Common
27 GNDR - Ground
28 VREFR O Voltage reference
PIN
NO.
I/O FUNCTION NAME
PIN
NO.
I/O FUNCTION NAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DVSS
DVDD
MCLK
/PD
BICK
SDATA
LRCK
SMUTE//CS
DFS
DEM0/CCLK
DEM1/CDTI
DIF0
DIF1
DIF2
-
-
I
I
I
I
I
I
I
I
I
I
I
I Digital ground
Digital power supply
Master clock
Power down mode
Audio serial data clock
Audio serial data input
L/R clock
Soft mute
Double speed sampling mode
De-emphasis enable
Digital input format
15
16
17
18
19
20
21
22
23
24
25
26
27
28 BVSS
VREFL
VREFH
AVDD
AVSS
AOUTR-
AOUTR+
AOUTL-
AOUTL+
VCOM
P//S
CKS0
CKS1
CKS2
-
I
I
-
-
O
O
O
O
O
I
I
I
I
Substrate ground
Low level voltage reference
High level voltage reference
Analog power 5 V
Analog ground
Rch negative analog output
Rch positive analog output
Lch negative analog output
Lch positive analog output
Common voltage output
Parallel/serial select
Master clock select
AK4393VF-E2 (XW029A00) DAC (Digital to Analog Converter)
DM: IC123
PIN
NO.
I/O NAME FUNCTION
TDA7571 (X4450A00) DIGITAL POWER AMPLIFIER
PIN
NO.
I/O NAME FUNCTION
PW: IC107
1 (N.C)
2 (N.C)
3 (N.C)
4 Gpr I/O Gate PMOS, Right Channel
5 Gprs I/O Sense Gate PMOS, Right Channel
6 +Vs-5 Power Supply
7 Spr2 I Sensing 2 PMOS, Right Channel
8 Spr1 I Sensing 1 PMOS, Right Channel
9 +Vs-Vref1 I Supply Drivers PMOS
10 pgnd Power Ground
11 (N.C)
12 +Vs I Positive Power Supply
13 Spl1 I Sensing 1 PMOS, Left Channel
14 Spl2 I Sensing 2 PMOS, Left Channel
15 -Vs+5 Power Supply
16 (N.C)
17 Gpls I/O Sense Gate PMOS, Left Channel
18 Gpl I/O Gate PMOS, Left Channel
19 (N.C)
20 (N.C)
21 Gnl I/O Gate NMOS, Left Channel
22 Gnls I/O Sense Gate NMOS, Left Channel
23 Snl2 I Sensing 2 NMOS, Left Channel
24 Snl1 I Sensing 1 NMOS, Left Channel
25 -Vs+Vrefl I Supply Drivers NMOS. Left Channel
26 -Vs I Negative Power supply
27 -Vs I Negative Power supply
28 Feed L in O Feedback Network Left Channel
29 CDsel1 Clip Detector Selection 1
30 CDsel2 Clip Detector Selection 2
31 CD O Clip Detector Output
32 dgnd Digital Ground
33 bridge Stereo/Bridge Selection
34 L/R Bridge Left/Right Selection
35 Rfs pcm-pwm gain conversion resistor
36 THWint O Internal Thermal Warning Output
37 THWext O External Thermal Warning Output
38 NTC O Sensing Resistors Network
39 f
40 5Vdig O Digital 5V Supply Output
41 P/O PLL/FREE Running Osc. Option
42 +Vs-low I Positive Voltage Supply Low Power
43 d1 Dither 1
44 d2 Dither 2
45 t1
46 MCLK I Master Clock Input
47 t2
48 SD I I2S Serial Data
49 WS I I2S Word Select
50 SCK I I2S Serial Clock
51 (N.C)
52 -2.5V O Signal -2.5V Supply Output
53 sgnd O Signal Ground
54 +2.5V O Signal 2.5V Supply Output
55 MUTE I Mute Input
56 ST-BY I Stand By Input
57 Feed R in O Feedback Network Right Channel
58 -Vs O Negative Voltage Supply
59 -Vs O Negative Voltage Supply
60 -Vs+Vrefr I Supply Drivers NMOS. Right Channel
61 Snr1 I Sensing 2 NMOS, Right Channel
62 Snr2 I Sensing 1 NMOS, Right Channel
63 Gnrs I/O Sense Gate NMOS, Right Channel
64 Gnr I/O Gate NMOS, Left Channel