Yamaha HTR-6295, Service Manual

Page: 125 / 163

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B C D E F G H I J K L M N
125
DIGITAL 3/7
RX-V2065/HTR-6295
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
IC44
IC47
IC48
IC49
IC40
IC41
CB41
IC43
IC42
IC43
IC51
IC45
IC46
IC51
CB45
IC50
CB43
POINT C XL41 (Pin 28 of IC40) POINT D XL42 (Pin 29 of IC41)
D
C
0
0
0
12.0
0
0
0
-11.6
1.7
0
1.7
1.7
3.3
0
0
0
3.3
2.7
0
1.7
3.3
3.3
5.1
1.7
0
5.5
3.4
0 0 0 0 0
0
0 0 0
2.9
3.3 0.3 3.3 1.7 1.7 1.7 1.7
0 0 0 0 0 0 1.3
1.3 0 0
0
3.3 3.3 3.3
0 0 0 0 0 0
0
0
0
2.8
1.3 1.3 1.3
3.3 3.3
3.3 0.3 0.3
3.3
3.3
0 0 0 0 0
0
3.2
3.4 3.4 3.4 3.4
3.4 3.4
3.4 3.4
0 0 0 0 0 0
3.2 3.3 3.3 3.3 1.7 3.3 3.3
2.7
0
1.3 1.3 1.3
1.3
2.7
0
0.2 0.2 0.2 0.2
0 0 0
3.2
0
0
0
0.2
0.2
0 0 0
3.3 3.3 0.2 0.2
0 0
1.7
1.3 1.3
1.7 1.7
1.7
3.3 3.3 1.7
1.7 3.0 1.3
0
3.3
3.3
3.3
3.3
1.8
0
0
0
1.3
1.3 1.8
3.1
1.7
3.3
0
3.3
3.3
3.3
3.2
0
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0
0
0
0
3.3
3.3
0
3.2
0
3.2
3.2
3.3
0
3.3
3.3
3.3
3.2
3.3
1.3
3.3
3.2
3.3
3.3
3.3
1.3
1.3
3.3
2.7
3.3
1.7
0
0
0
0
0
0
0
3.3
0
0
0
0
0
0
0
1.9
1.8
0
1.3
2.1
1.5
0.7
1.2
0
0
0.2
0
0.2
0.2
0.2
0
0
3.3
0
3.3
0
0
0
0
1.9
1.8
0
1.5
0
3.3
3.3
2.7
3.2
3.3
3.2
0
3.2
0
3.2
3.3
1.7
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
3.3
0
3.3
3.3
3.3
3.3
3.3
1.5
1.6
1.6
0
0
0
0
3.3
0
0
0
0
0
0.2
0.2
0.4
0.4
3.3
3.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1.3
1.3
1.3
3.3
1.3
1.6
0
0
0
3.2
0
0
0
0.2
0.2
0
0
0.7
1.2
2.1
3.3
0
0.2
0.2
0
0
0
0
0
0
0
1.8
0
1.5
2.1
1.2
0.7
0
0
0
1.9
0
0
0
0
0
0
0
0
5.3
0
0
0
0
1.1
3.3
1.2
0
0
0
3.3
3.3
0
3.3
0
0
3.3
0
0
3.3
3.3
3.3
0
0 0
1.7
3.3 1.7
0
1.7 3.3
0
3.3
0
0
0 0
0 3.3
1.3 1.3
3.3 0
0
3.3
5.0 5.0 3.3 3.3 1.3
0 0
ANALOG IN
DIGITAL IN
SBL/SBR
SL/SR
FL/FR
C/SW
DIGITAL IN
IC48 : K4S641632N-LC60000
64 M synchronous DRAM
Bank Select
CLK
Row Decoder
I/O Control
Output Buffer
Sense AMP
Address Register
Data Input Register
Column Decoder
Latency & Burst Length
Programming Register
2M x 8 / 1M x 16
2M x 8 / 1M x 16
2M x 8 / 1M x 16
2M x 8 / 1M x 16
Col. Buffer
Row Buffer
Refresh Counter
ADD
LCKE
LRAS
CLK
LRAS LCAS
Timing Register
LCBR LWE LDQM
DQi
LDQM
LWE
LWCBR
CKE CS
LCBR
WE L(U)DQM RAS CAS
1 VDD VSS
VSS
VSS
N.C/RFU
UDQM
CLK
CKE
N.C
A11
A9
A8
A7
A6
A5
A4
VSSQ
VSSQ
VDDQ
VDDQ
DQ15
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
VDD
VDDQ
VDD
VDDQ
VSSQ
VSSQ
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
LDQM
WE
CAS
RAS
CS
BA0
A0
A1
A2
A3
BA1
A10/AP1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
54
53
52
51
50
49
48
47
46
45
44
Microcontroller
I/F
Cbit, Pc
Fs calculator
IC41 : LC89058WD-E
Digital audio interface receiver
1
13
48
2
47
28
27
46
45
44
32
34
40 CL
CE
DI
DO
RERR
SDIN
RDATA
RMCK
RBCK
RLRCK
SBCK
SLRCK
XMODE
AUDIO INT
CKST
MOUT
GPIO0
GPIO1
GPIO2
GPIO3
RXOUT2
RXOUT1
RX0
RX1
RX2
RX3
RX4
RX5
RX6
LPF
XIN
XOUT
XMCK
41
39
38
37
36
24
21
4
8
10
29
9
5
3
16
22
17
20
23
35 33
Input
Selector
PLL
Oscillation
Amplifier
Clock
Selector
Clock
Divider
Demodulation
&
Lock detect Data
Selector
IC43 : NJM4565M
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
IC47 : R1173S001D-E2-F
Voltage regulator
IC44 : D70YE101BRFP266
Floating-point digital signal processors
256
256
C67x+ Microprocessor
D1
64
R/W
Data
D2
R/W
Program
Fetch
Memory
Controller
Program/Data
RAM
256K Bytes
JTAG EMU
McASP DMA Bus
Peripheral Configuration Bus
McASP0
16 Serializes
McASP1
6 Serializes
McASP2
2 Serializes
DIT Only
SPI1
SPI0
I2C0
I2C1
RTI
PLL
Program/Data
ROM Page1
256K Bytes
Program/Data
ROM Page2
256K Bytes
Program/Data
ROM Page3
256K Bytes
High-performance
Crossbar Switch
CSP
PMP DMP
Program
Cache
32K Bytes
I/O
I/O MAX0 MAX1 Events
In
CONTROL
dMAX
EMIF
Peripheral Interrupt and DMA Events
Interrupts
Out
INT
Data
256
256
256
256
32
32
32
32
32
32
32
32
32
32 32
64
32
32 32 32
32
32
32
32
32
32
1
3
2
5
4 GND
V
CC
IC50, 52 : TC7SH08FU
2-input AND gate
IN A
IN B
OUT Y
IC45 : CS230003-CZZR
Clock multiplier
LCO
FILTP
FILTN
M1
M0
CLK_IN
AUX_OUT
CLK/PLL
PLL_OUT
GND
VD
N
Output to Input
Clock Ratio
PLL_OUT
23 kHz to 75 MHz
AUX Output
23 kHz to 30 MHz
Frequency Reference
Ratio Selection
6 MHz to 75 MHz
PLL Output
AUX Output
Source Select
CLK_IN
0.1uF
0.1uF
1uF
M[1:0]
00=1x
01=4x
10=128x
11=256x
128 Hz BW Digital PLL
and Fractional N Logic
Δ∑ Fractional-N
Frequency Synthesizer
5
4
8
3
2
1
10
9
7
6
V DD
CE
Pin No.
4
2
3
6
1
Symbol
CE
GND
ADJ
V DD
V
OUT
Description
Chip Enable Pin
Ground Pin
5 GND Ground Pin
ADJ Pin
Input Pin
Output Pin of Voltage Regulator
Vref
6 1
4 2,5
Current Limit
V OUT
GND
ADJ
3
V
DD
CE
Pin No.
1
2
3
4
5
Symbol
CE
GND
NC
V
DD
V
OUT
Description
Chip Enable Pin (“H” Active)
Ground Pin
No Connection
Input Pin
Output Pin
Vref
4 5
1 2
Current Limit
V
OUT
GND
IC51 : R1172H501D-T1-F
Voltage regulator
DSP
64 M SDRAM 16 M FLASH ROM
DOCK
To DIGITAL 4/7
To DIGITAL 2/7
To DIGITAL 7/7
To DIGITAL 4/7
To DIGITAL 7/7
To DIGITAL 4/7
(U model)
DIR
XM DT IC
XM
No replacement part available.
No replacement part available.
to GUI_CB500
Page 137 B2