Yamaha HTR-6280, Service Manual

Page: 120 / 166

A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
M
N
RX-V1065/HTR-6280/AX-V1065
120
DIGITAL 2/5
★
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.
●
電圧は、内部抵抗
10MΩの電圧計で測定したものです。
●
⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、 パーツリストに記載されている部品を使用してください。
●
本回路図は標準回路図です。改良のため予告なく変更することがございます。
IC20
CB20
CB21
CB22
CB23
CB24
CB25
IC21
CB27 CB26
IC22
3.4
0 0.7
0 1.1
0 1.2
3.4
3.4
3.4
3.4
3.3
3.4
3.4
1.5
0
0.2
0
0.6
0
3.4
0
0
0
0
3.3
3.4
3.4
3.4
3.4
3.3
2.9
3.0
0.3
3.3
3.3
0.3
3.4
3.4
0
0
1.8
0
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0
3.4
3.3
3.4
3.2
3.4
3.4
3.3
3.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3.4 3.4
0
0 0 0
3.4 3.4
0
3.4 3.4
3.4 3.4 3.4
0
0
0
0.4 3.4
3.3
0 0 0 0
3.3 3.4 3.4 3.4
3.4 3.4
3.4
3.4 3.4
3.4
0
1.6 3.4 3.4 0.7 2.5 1.2 1.1
3.4
0
3.4 3.4 0 3.3 0 0 0 0
0 3.4 3.3 3.3 3.4
3.4 3.3 0
3.4
0 3.4 3.4
3.4
3.4 3.4
3.4 3.3
3.3
3.3
3.4
0.6
3.3 3.4
2.6 2.6
3.7
3.4
-11.7
3.7
3.4
-11.7
3.7
3.4
-11.7
3.7
3.4
-11.7
3.7
3.4
-11.7
3.4 3.4
3.4
5.6
5.1
0
3.4
3.4
3.4
3.4
3.4
3.4
0
0
3.3
0
0
3.3
3.4
3.3
3.4
3.4
0
0
3.4
3.4
0
0
0
1.6
3.4
0
-11.7
-11.7
-11.7
0
0
0
0
0
0.7
3.4
3.3
0.4
3.2
3.3
3.3
3.3
0
0
0
0
0
0
0
0
0
0
0
1.2
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
1.2
0
5.0
0
3.4
3.4
3.4
3.4
0
3.3
3.3
3.4 3.4 3.4 3.4 3.4 3.4
3.4 3.4 3.4
2.5 2.6
0
0.3
0.7
0
0.2
3.3 3.3
3.3
0
0.6
0
3.3
POINT
B XL20 (Pin 20 of IC20)
B
1
CB24
(+3.3M)
CB24
(/RESET)
2 1
CB24
(+3.3M)
CB24
(/RESET)
2
PO
WER ON
PO
WER OFF
PO
WER ON
POINT
C 1 / CB24 (+3.3M), 2 / CB24 (/RESET)
2
C
1
IC22
: LE25LB2562M-TLM-E
256 k-bit serial SPI EEPROM
(U model) (C, R, T, K, A, B, G, E, F, L, J models)
SERIAL INTERFACE
Y ·DECODER
1 2 3 4
VSS WP#
SO
CS#
SI SCK HOLD# VDD
8 7 6 5
X ·
DECODER
EEPROM Cell Array
CONTROL
LOGIC
I/O BUFFERS
and
DATA LATCHES
ADDRESS BUFFERS
and
LATCHES
CS#
SCK
S
I
S
O
WP#
HOLD#
V
DD
CE
Pin No
.
1 2 3 4 5
S
ymbol
CE
GND
NC V
DD
V
OUT
Descr
iption
Chip Enab
le Pin
Gr
ound Pin
No C
onnection
Input Pin Output Pin of
V
olt
age R
e
gulat
or
Vr
ef
45 12
Curr
ent Limit
V
OUT
GND
IC21
: R1
1
72H331D-T1
-F
V
olt
age r
egulat
or
IC22
: LE25LA322M-TLM-E
32 k-bit serial SPI EEPROM
SERIAL INTERFACE
Y ·DECODER
1 2 3 4
VSS WP#
SO
CS#
SI SCK HOLD# VDD
8 7 6 5
X ·
DECODER
EEPROM Cell Array
CONTROL
LOGIC
I/O BUFFERS
and
DATA LATCHES
ADDRESS BUFFERS
&
LATCHES
CS#
SCK
S
I
S
O
W
P#
HOLD#
IC20
: M30878JBGP
Single chip 1
6/32-bit micr
opr
ocessor
Port P0
Port P1
Port P2
Port P3
Port P4
Port P5
Port P6
Port P7
Port P14
Port P15
Port P1
1
Port P12
Port P10 Port P9 Port P8 P8 5
Port P13
R0H
R0L
R1H
R1L
R2 R3
A0 A1 FB SB
NOTES:
1. Ports P11 to P15 are provided in the 144-pin package only. 2. Included in the 144-pin package only. 26 inputs maximum in the 100-pin package. 3. 6-channel available in the 100-pin package. 4. 6-channel available in the 100-pin package. 5. 10-channel available in the 100-pin package.
FLG
INTB
ISP
USP
PC
SVF
SVP VCT
Multiplier
M32C/80 series m
ic
ro
p
rocessor
core
Clock Generation Circuit
X
IN
- X
OUT
X
CIN
- X
COUT
On-chip Oscillator
PLL Frequency Synthesizer
A/D Converter:
1 circuit
Standard: 10 inputs
Maximum: 34 inputs
(2)
UART/Clock Synchronous Serial I/O:
7-channel
(3)
CRC Calculation Circuit (CCITT):
X
16
+X
12
+X
5
+1
X/Y Converter:
16-bit x 16-bit
D/A Converter:
8-bit x 2-channel
Peripheral Functions
<
V
CC2
>
<
V
CC1
>
<
V CC1
>
ROM RAM
Memory
<
V
CC1
>
<
V
CC2
>
78
5
8
8
(Note 1)
8
8
7
888888
8
8
DMACII
DMAC
Watchdog Timer (15-bit)
CAN Module: 2-channel
Intelligent I/O
Time Measurement: 8-channel
(4)
Wave Generating: 16-channel
(5)
Communication Functions:
Clock Synchronous Serial I/O, UART, HDLC Data Processing
Timer (16-bit)
Timer A: 5-channel Timer B: 6-channel
Three-Phase Motor Control Circuit
MAIN MICROPROCESSOR
to
DIGI
T
AL 4/5
to
DIGI
T
AL 1/5
to
DIGI
T
AL 5/5
R20
1
RX-V1
065/AX-V1
065
HTR-6280
1
00K
no use
to
DIGI
T
AL 3/5
Ohm
0
+
1.0k
+1
.0k
+1
.5k
+1
.8k
+2.2k
+3.3k
+4.7k
+6.8k
+1
0.0k
+22.0k
+68.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.99
1.0 – 1
.27
1.28 – 1
.56
1.57 – 1
.86
1.86 – 2.1
4
2.1
4 – 2.4
2.4 – 2.65
2.66 – 2.91
2.92 – 3.1
7
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 77
78 – 98
99 – 1
2
0
1
21 – 1
4
3
1
44 – 1
6
5
1
66 – 1
8
5
1
86 – 205
206 – 225
226 – 245
KEY2
(1
34 pin)
PURE
DIRECT
S
TRAIGHT / EFFECT
INFO
MEMOR
Y
PRESET
<
PRESET
>
FM
AM
TUNING
<
TUNING
>
——
Ohm
0
+
1.
0k
+1
.0k
+
1.
5k
+1
.5k
+2.2k
+3.3k
+4.7k
+22.0k
+
33.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.97
0.98 – 1
.24
1.25 – 1
.53
1.54 – 1
.84
1.84 – 2.1
2.34 – 2.55
2.55 – 2.97
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 75
7
6
– 95
96 – 1
1
8
11
9
– 1
4
2
1
43 – 1
6
2
1
81 – 1
9
7
1
98 – 229
KEY1
(1
33 pin)
SCENE
RADIO
SCENE
CD
SCENE
TV
SCENE BD/D
V
D
ZONE2
ON/OFF
ZONE2
CONTR
OL
——
MAIN ZONE
ON/OFF
TO
N
E
CONTR
OL
Ohm
0
+
1.
0k
+1
.0k
+
1.
5k
+1
.5k
+2.2k
+3.3k
+4.7k
+22.0k
+
33.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.97
0.98 – 1
.24
1.25 – 1
.53
1.54 – 1
.84
1.84 – 2.1
2.34 – 2.55
2.55 – 2.97
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 75
7
6
– 95
96 – 1
1
8
11
9
– 1
4
2
1
43 – 1
6
2
1
81 – 1
9
7
1
98 – 229
KEY1
(1
33 pin)
SCENE
RADIO
SCENE
CD
SCENE
TV
SCENE BD/D
V
D
SLEEP
MUTE
—
—
S
T
ANDB
Y/
ON
TO
N
E
CONTR
O
L
K
e
y det
ection f
or
A/D por
t
K
e
y input (A/D) pull-up r
esist
ance 1
0
k-ohms
RX-V1
0
65/HTR-6280
AX-V
1065
Ohm
0
+
1.0k
+1
.0k
+1
.5k
+1
.8k
+2.2k
+3.3k
+4.7k
+6.8k
+1
0.0k
+22.0k
+68.0k
V
0
– 0.1
5
0.1
5 – 0.42
0.43 – 0.70
0.71 – 0.99
1.0 – 1
.27
1.28 – 1
.56
1.57 – 1
.86
1.86 – 2.1
4
2.1
4 – 2.4
2.4 – 2.65
2.66 – 2.91
2.92 – 3.1
7
A/D v
alue
(3.3 V=255)
0 – 1
1
1
2
– 32
33 – 54
55 – 77
78 – 98
99 – 1
2
0
1
21 – 1
4
3
1
44 – 1
6
5
1
66 – 1
8
5
1
86 – 205
206 – 225
226 – 245
KEY2
(1
34 pin)
PURE
DIRECT
S
TRAIGHT / EFFECT
INFO
MEMOR
Y
PRESET
<
PRESET
>
C
A
TE
GOR
Y
<
FM
C
A
TE
GOR
Y
>
AM
TUNING CH
<
TUNING CH
>
——
Writing port
to OPERATION (1)_CB401
P
age 124
E10
to VIDEO (4)_W3601 P
age 130
C2
to MAIN (5)_CB107
P
age 126
I7
to MAIN (1)_CB156
P
age 127
K8
to VIDEO (3)_CB382
P
age 130
I9
to VIDEO (1)_CB349
P
age 129
F6
to GUI_CB501
P
age 131
B2