Yamaha RX-V559 Service Manual page 82

A B C
RX-V559/HTR-5950/DSP-AX559
DSP 2/3
1
DSP
2 1.3 3.1 3.3 5.0
1.3 3.1
0 0 3.3 5.0
0
3.1
0.1
5.0
0
3
4.0
0
4.9
DIGITAL IN
0.3
0
4.9
0.3
0
4
4.9
5.0
2.4 2.4 0.6
0
0 4.9 0 BUFFER
0 4.9 0
5
0 0
5.4 0.1
XM
6
0.1
0
0
1.9 A-1
3.5
1.8
0
0
0
XMDT
3.5
0
7
8
9
# All voltages are measured with a 10MΩ/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.
10
82
D E F
no_use (HTR-5950 model)
0.1
3.3
0 3.3
0 3.3
4.0 0
0.3 0
0 DIR 0
3.3 3.3
0.3
1.6
0.6
1.5
0 A-2 1.7
3.3
3.3
0 0
SELECTOR
1.7
0 3.3
3.3
3.5
0
0
0
0
3.5
0.2
0
3.5 1.2
3.5
3.5
0
C416
0.1
IC52 : SN74LVU04APWR
Hex inverters
1A 1 14 VCC
1Y 2 13 6A
2A 3 12 6Y
2Y 4 11 5A
3A 5 10 5Y
3Y 6 9 4A
GND 7 8 4Y
G H
POINT A-1 Pin 28 of IC55 POINT A-2 Pin 29 of IC56
FL/FR
C/SW
PL/PR SL/SR
ANALOG IN SBL/SBR
0 0
0
0.1 0
0 0
0 3.3
0 3.3
0
1.2 1.2
1.7 3.3
3.3 0
0 3.3
1.7 0
0 3.3
3.3 0
0 3.3
1.2 0.4
1.7 3.3
0 0.1
3.3 1.2
1.2 0.1
0 0.1
0 0
0 3.0
1.2
1.6
0 1.8
No replacement part available.
3.3 0
3.3 3.3
3.3 2.8
0 2.9
3.3 0
3.3 1.2
1.2 0.1
3.3 0.1
3.3 0.1
0 3.3
IC53 : R1172S121D-E2-F
IC54 : NJM2885DL1-33
Power supply
Low dropout voltage regulator
V IN 1
V DD V OUT
GND 2
Vref
Current Limit
CE GND
I J K
16M SDRAM 4M ROM
3.3 0
0.2 0.1 0.1
0.1 0.1 0
0 0 0
0.2 0.2 0.1
0.2 0.2 0.4
3.3 3.3 0.1
0.2 0.1 0.1
0.1 0.2 2.9
0 0
0.1 0.2
0.1 0.2 3.3
3.3 3.3
3.3
2.9
3.3 2.9
3.3 1.7
3.3 3.3 0
0 0
3.3 0.1 2.8
0.4 0.1 1.8
0.1 2.9 1.6
0.1 2.8 3.0
0.1 1.8 0.1
3.0 1.6 0.1
3.3 0 0.1
IC56 : LC89057W-VF4A-E
Digital audio interface transceiver
EMPHA/UO AUDIO/VO INT CL CE CI XMODE
32 33 35 48 39 38 41
Microcontroller
RXOUT 1 Cbit, Ubit
37 DO
I/F
RX0 2
3 V OUT
36 RERR
RX1 3
Thermal RX2 4
Demodulation
Input Data
Protection
RX3 5 & 21 RDATA
Selector Selector
Bandgap RX4 Lock detect
8
Reference
RX5/VI 9
24 SDIN
RX6/UI 10
16 RMCK
LPF 13 PLL
17 RBCK
Clock 20 RLRCK
TMCK/PIO0 44
Selector
Modulation 22 SBCK
TBCK/PIO1 45
1/N
& 23 SLRCK
TLRCK/PIO2 46
Parallel Port
TDATA/PIO3 47
TXO/PIOEN 48
29 28 27 34
XIN XOUT XMCK CKST
L M N
IC61, 62 : SN74AHCT1G32DCKR IC63 : SN74AHCT08PWR
Single 2-input positive-OR gate Quadruple 2-input positive-AND gates
A 1 5 Vcc
1A 1 14 Vcc
B 2
1B 2 13 4B
GND 3 4 Y
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
IC64 : W9816G6CH -7
512K x 2 banks x 16 bits SDRAM
CLK 35
CLOCK
BUFFER
CKE 34
CONTROL COLUMN DECODER
CS 18
SIGNAL R
RAS 17 GENERATOR O
COMMAND
W
CAS 16 DECODER
D CELL ARRAY
E 2 DQ0
WE 15 BANK #0
C
3 DQ1
O
D
E 5 DQ2
R
A10 20 6 DQ3
SENSE AMPLIFIER
8 DQ4
9 DQ5
MODE
A0 21 11 DQ6
REGISTER
12 DQ7
A3 24 ADDRESS
REFRESH DQ
BUFFER
COUNTER BUFFER 39 DQ8
A4 27
40 DQ9
A9 32
42 DQ10
BA 19
43 DQ11
45 DQ12
46 DQ13
REFRESH COLUMN
COLUMN DECODER 48 DQ14
COUNTER COUNTER
R
49 DQ15
O
W
D CELL ARRAY
E
BANK #1
C
O
D
E
14 LDQM
R
36 UDQM
SENSE AMPLIFIER
IC65 : SN74LV245APWR
Octal bus transceiver with 3-state outputs
DIR 1 20 Vcc
A1 2 19 OE
A2 3 18 B1
A3 4 17 B2
A4 5 16 B3
A5 6 15 B4
A6 7 14 B5
A7 8 13 B6
A8 9 12 B7
GND 10 11 B8
IC66 : S29AL004D70TF1020
4M-bit COMS 3.0 volt-only boot sector flash memory
0
3.3
0
0.1
0.1
0.1
0.1
0.2
0.1
0.2
0.2
3.3
0.1
0.2
0.2
0.2
A15 1 48 A16
0.2
A14 2 47 BYTE#
0.1 A13 3 46 V
SS
A12 4 45 DQ15/A-1
0.2 A11 5 44 DQ7
A10 6
43 DQ14
0.2
A9 7 42 DQ6
A8 8 41 DQ13
3.3
NC 9 40 DQ5
0 NC 10 39 DQ12
WE# 11 38 DQ4
3.3
RESET# 12 37 V CC
NC 13 36 DQ11
3.3
NC 14 35 DQ3
RY/BY# 15 34 DQ10
NC 16 33 DQ2
A17 17 32 DQ9
A7 18 31 DQ1
A6 19 30 DQ8
A5 20
29 DQ0
A4 21 28 OE#
A3 22 27 V
SS
A2 23 26 CE#
A1 24 25
A0
IC58 : SN74LV157APWR
IC59 : SN74AHC1G08DCKR
Quadruple 2-line to 1-line data selectors/multiplexers 2-input positive-AND gate
1A 2
A 1 5 Vcc
4 1Y
1B 3
B 2
A/B V
2A 5 1 16 CC GND 3 4 Y
1A G
2 15
7 2Y
1B 4A
2B 6 3 14
1Y 4 13 4B
3A 11 2A 5 12 4Y
2B 6 11 3A
9 3Y
3B 10 2Y 7 10 3B
GND 8 9 3Y
4A 14
12 4Y
4B 13
G 15
A/B 1