Yamaha HTR-5940 Manual de serviço - Página 6

Procurar online ou descarregar pdf Manual de serviço para Recetor Yamaha HTR-5940. Yamaha HTR-5940 12 páginas. Av receiver / av amplifier

Imprimir página
Yamaha HTR-5940 Manual de serviço
A
B
C
DSP 2/3
1
DSP
1.3
3.1
3.3
5.0
1.3
3.1
0
0
3.3
5.0
0
3.1
2
0.1
5.0
0
4.0
0
4.9
3
DIGITAL IN
0.3
0
4.9
0.3
0
4.9
4
5.0
2.4
2.4
0.6
0
BUFFER
0
4.9
0
0
4.9
0
5
0
0
5.4
0.1
XM
0.1
0
6
0
1.9
A-1
3.5
3.5
1.8
0
0
0.2
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
D
E
F
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
0
1.7
0.1
0
0
0
0
1.2
1.7
3.3
0
1.7
0
3.3
0
1.2
0
3.3
1.7
3.3
0
0
0
3.3
0
0
1.2
3.5
0
0
0
0
3.5
1.2
3.5
3.5
0
0
3.3
3.3
3.3
0
3.3
3.3
1.2
3.3
3.3
0
IC53 : R1172S121D-E2-F
IC52 : SN74LVU04APWR
Power supply
Hex inverters
1A
1
14
VCC
1Y
2
13
6A
V
DD
2A
3
12
6Y
2Y
4
11
5A
3A
5
10
5Y
3Y
6
9
4A
GND
7
8
4Y
CE
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
3.3
3.3
1.2
3.3
0
3.3
0
3.3
0
3.3
0.4
3.3
0.1
1.2
0.1
0.1
0
3.0
1.2
1.6
1.8
No replacement part available.
0
3.3
サービス部品供給なし
2.8
2.9
0
1.2
0.1
0.1
0.1
3.3
IC54 : NJM2885DL1-33
Low dropout voltage regulator
V
1
IN
V
OUT
Bandgap
Reference
GND
2
Vref
Current Limit
GND
I
J
K
16M SDRAM
4M ROM
3.3
0
0.2
0.1
0.1
0
0.1
0.1
0
3.3
0
0
0
0
0.2
0.2
0.1
0.1
0.2
0.2
0.4
0.1
3.3
3.3
0.1
0.1
0.2
0.1
0.1
0.1
0.1
0.2
2.9
0.2
0
0
0.1
0.1
0.2
0.2
0.1
0.2
3.3
0.2
3.3
3.3
3.3
3.3
2.9
0.1
3.3
2.9
0.2
3.3
1.7
0.2
3.3
3.3
0
0.2
0
0
0.2
3.3
0.1
2.8
0.1
0.4
0.1
1.8
0.2
0.1
2.9
1.6
0.2
0.1
2.8
3.0
3.3
0.1
1.8
0.1
0
3.0
1.6
0.1
3.3
3.3
0
0.1
3.3
IC56 : LC89057W-VF4A-E
Digital audio interface transceiver
EMPHA/UO
AUDIO/VO
INT
CL
CE
CI
XMODE
32
33
35
48
39
38
41
RXOUT
1
Microcontroller
Cbit, Ubit
37
DO
I/F
3
V
RX0
2
OUT
36
RERR
3
RX1
RX2
4
Thermal
Input
Demodulation
Data
Protection
RX3
5
21
RDATA
Selector
&
Selector
Lock detect
RX4
8
RX5/VI
9
SDIN
24
RX6/UI
10
16
RMCK
LPF
13
PLL
17
RBCK
Clock
20
RLRCK
TMCK/PIO0
44
Selector
22
SBCK
TBCK/PIO1
45
Modulation
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
COLUMN DECODER
CS
18
CONTROL
SIGNAL
R
RAS
17
GENERATOR
O
COMMAND
W
CAS
16
DECODER
D
CELL ARRAY
2 DQ0
E
WE
15
BANK #0
C
O
3 DQ1
D
5 DQ2
E
R
A10 20
6 DQ3
SENSE AMPLIFIER
8 DQ4
9 DQ5
A0
21
MODE
11 DQ6
∼
REGISTER
A3
24
ADDRESS
12 DQ7
REFRESH
DQ
BUFFER
A4
27
COUNTER
BUFFER
39 DQ8
∼
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
SENSE AMPLIFIER
36 UDQM
IC66 : S29AL004D70TF1020
4M-bit COMS 3.0 volt-only boot sector flash memory
DQ0–DQ15 (A- 1)
RY/ BY#
V
CC
Sect or Sw itc hes
V
SS
Erase V olt ag e
In put/ Out put
RESET#
Generat or
Buff ers
WE#
State
Contr ol
BYTE#
Comm and
Regi st er
PGM Vo ltage
Generator
Data
Chip Enab le
Out put Enable
STB
Lat ch
CE#
Logic
OE#
Y-Decoder
Y- Gating
STB
V
De te ct or
Tim er
CC
Cell M atrix
X- Decoder
A0– A17
A15
1
48
A16
A14
2
47
BYTE#
A13
3
46
V
SS
A12
4
45
DQ15/A-1
A11
5
44
DQ7
A10
6
43
DQ14
A9
7
42
DQ6
A8
8
41
DQ13
NC
9
40
DQ5
NC
10
39
DQ12
WE#
11
38
DQ4
RESET#
12
37
V
CC
NC
13
36
DQ11
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
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
IC58 : SN74LV157APWR
IC59 : SN74AHC1G08DCKR
Quadruple 2-line to 1-line data selectors/multiplexers
2-input positive-AND gate
1A
2
A
1
5
Vcc
1Y
4
1B
3
B
2
A/B
1
16
V
CC
2A
5
GND
3
4
Y
1A
2
15
G
7
2Y
2B
1B
3
14
4A
6
1Y
4
13
4B
3A
2A
5
12
4Y
11
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