Yamaha DSP-AX1600, Руководство по обслуживанию

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A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V1600/DSP-AX1600
SCHEMATIC DIAGRAM (D-VIDEO 1/2)
110
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
IC301, 302 : SN74CBT3306PWR
FET Bus Switch
1
2
3
4 5
6
7
8 1OE
1A
1B
GND
Vcc
2OE
2B
2A
HV GENERATOR
EEPROM ARRAY
(2 x 256 x 8) or
(4 X 256 X 8)
PAGE LATCHES
YDEC
XDEC
SENSE AMP
R/W CONTROL
MEMORY
CONTROL
LOGIC
I/O
CONTROL
LOGIC
WP
SDA SCL
VCC
V SS
IC303, 304 : 24LC04BT-I/SN
Serial EEPROMs
IC305 : SN74AHC2GU04HDCTR
Triple Inverters
1A
3Y
GND
VCC
1Y
1
2
3
4 5
2A 3A
2Y
6
7
8
VIN
8
INHIBIT
CONTROL
5
START
INHIBIT REFERENCE
VOLTAGE
CURRENT
LIMIT
ERROR
AMPLIFIER
DRIVER
VOUT
1
TERM. PROTEC.
GND
3, 4, 6, 7
IC306 : LE50ABD
VOLTAGE REGULATORS WITH INHIBIT
IC307 : SN74LVC1G125DC
Single Bus Buffer Gate
1
2
3
OE
A
GND 4
5 VCC
Y
IC314 : SN74AHCT1G125DCKR
Single Bus Buffer Gate
1
2
3
OE
A
GND 4
5 VCC
Y
IC308 : SiI9030CTU
HDMI Transmitter
IC309 : SiI9031
HDMI Receiver
SC0
SC1
SD0
SD1
VSS
SCL
VDD
SDA
Input
Filter
Power-on
Reset
I2C-Bus
Control
SWITCH CONTROL LOGIC
4
8
5
7
6
1
3
2
IC310 : PCA9540BDP
2-channel I 2 C multiplexer
1 DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
IC311 : SN74LVC245APWR
Octal Bus Transceivers with 3-state Outputs
INPUT
NC
OUTPUT 1
Error
Amp.
+
GND
OUTPUT 2
+
Star
t-up circuit
Dr
iv
e circuit
Ref
e
rence v
o
ltage
Satur
a
tion protector
Ov
ercurrent limiter
Ther
mal protection
Error
Amp.
Dr
iv
e circuit
Satur
a
tion protector
Ov
ercurrent limiter
Ther
mal protection
1
4
3, 6(Fin)
5
2
-
-
IC312 :
µ
PC37M31TJ-E1-AZ
TWO-OUTPUT POSITIVE VOLTAGE REGULATORS
5.0
2.8
5.1
4.3
3.4
0.1
0
0
0
0
0
0
4.2
2.2
4.2
0
3.4
4.3
0.2
0.1
0.7
3.4
0
0.7
5.1
0
0
0.1
3.4
5.1
5.1
0
0
5.1 5.1
5.1 5.1
3.4 3.4
3.4
1.8
1.8
1.8
1.8
5.1
5.1
5.1
0
1.9
3.4
1.9
0
0 0.1 0.1 0.1 0.1 0.2 0.2 0.2 0.2 3.4
0 0 0
3.4 3.4 3.4 3.4
0
3.4
3.4
7.3
7.3
7.3
0
0
0
0
4.3
4.3
4.1
0.1
5.1
5.1 0.1
0
0.6
0
0.7
4.3
0 5.1
0
5.1
0
0
0
0
4.3
5.1
0
5.1
5.1
4.3
5.1
3.4
5.1
0.1
0
0
0
0 3.4 0 0.1 0
3.4
3.4 0
0.1
0.1 0.3 3.4 0 0.1 0.1 3.4 0 0.1 0.1 3.4 0 0.1 0.1 3.4 0.1 0.1 3.4 1.9 0
0
0 0.1 0.1 3.4 0 0.1 0.1 3.4 0 0.1 0.1 3.4 0 0.1 0.1 3.4 3.4
0
1.9
0.1
0.1
4.3
5.1
4.3
5.1
2.8
2.2
3.4
0
0
1.9
0
3.4
0
3.4
3.4
0.1
3.4
0
3.4
0
0.1
0
3.4
0
3.4
3.4
0
0
0
3.4
3.4
1.9
0.2 0.1 0.2 0.2 3.4 0.1 0
3.4
3.4
0.1
0.1
0.1
0.1
0.1
0.1
1.9
0.2
0.2
0.2
0.2
1.9
0
0
0
3.4
3.4
0.1
3.4
0
0
1.9
2.2
2.8
3.4
0.4 0
1.9
0
3.4
0.1
0.1
0.1
3.4
3.4
3.4
3.4
3.4 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 3.4 3.4
0 0 0 0
1.9 1.9 1.9
0.1
3.4
0.1
0.1
1.9
0
0
0
0
0
0
0.1
0
1.9
1.9
1.7
1.7
1.8
0.2
0.2
0.2
0.2
0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
1.9
3.4
0 0
0
1.9
B-2
Page 101
to FUNCTION (1)_CB314
I3
D-VIDEO
HDMI TRANSMITTER
HDMI DUAL RECEIVER
POINT B-2 Pin 96 of IC309
SN74LVC1G125DC