Yamaha HTR-6280, Service Manual

Page: 129 / 166

A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
MN
129
VIDEO 2/3
RX-V1065/HTR-6280/AX-V1065
★
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。
CB347
CB350
CB348
W3404
W3403
CB340
CB342 W3401 CB343 CB344 CB345
W3402
CB331
W3302
CB334
CB349
IC331
W3301B
W3301A
IC334
IC332
IC333
IC321
CB321
CB322 CB335
CB332
CB333
JK321
11.9 -11.9
11.9 -11.9
11.9 -11.9
11.9 -11.9
-11.9 -11.9
11.9
0
12.0
0
0
12.0 18.3 -11.9 0
0 0 0 0 0 0 0 0 0
-11.9
12.0
0
0
0
0
0 0 0 0 0 0
12.0
11.9
0
12.0
11.9
0
12.0
11.9
3.3
0
0
0
3.3
0
0
3.3
0
0
3.3
0
0
12.0
-11.9
0
12.0
5.0
0
0
0
0
-0.5
-4.9
-5.5
-5.8
-6.1
-38.0 0 -38.0
-37.5
-29.2 -29.2 -37.5
-42.7
-42.7 0.2
-6.1
-8.5
-8.5
3.5
4.5 0
7.7 -0.4
3.6
0
8.7 -8.5
0
3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3
0 0 0 0 0 0 0 0 0 0 0
-0.3
0
0
0
3.5
3.6
3.3
8.7
0
3.3
5.0
7.7
-0.4
0
-0.4
3.3 3.3 3.3 3.3
9.0 3.1
0 0 0
0 0
0
5.3
3.3 3.3 -0.4 -0.4 1.0
0
0
A
C
1
3.9
AC
7.
0
SURR
OUND
B
A
CK L
CENTER
SURR
OUND L
FR
ONT L
CTL
1
2
3
4
5
Vcc
GND
TSD
OCP
Vr
ef
- +
Dr
iv
er
V
OUT
C
IC332,
333
: B
A00JC5WT
-V5
V
olt
age r
egulat
or
REFERENCE
VOLTAGE
CIN
FLOUT
VREF
VREF
ANTIALIASING
FILTER
57kHz
BPF
(SCF)
SMOOTHING
FIL
TE
R
MPXIN
+3V
Vdda Vssa
PLL
(57kHz)
CLOCK
RECOVERY
(1187.5Hz)
+3V
Vddd
RDS-ID/ READY RST
Vssd
DATA
DECODER
XOUT
XIN
TEST
TEST
CLK(4.332MHz)
OSC
RAM
(128bits)
RDDA RDCL
RDS-ID DETECT
MODE
IC321
:
LC72725KM-UY
-TLM-E
RDS signal demodulation IC
CIN
TES
T
Vssd MODE Vddd XIN X
OUT
RS
T
RDCL
FL
OUT
RDS-ID/READ
Y
RDD
A
VREF
MPXIN
Vdda Vssa
2 3 4 5 6 7 8
9
10 11 12 13 14 15 16
1
IC334
: NJM2388F05
Low dropout voltage regulator with ON/OFF control
ON/OFF control
Over Voltage Protection
Bandgap Reference
V
IN
Cont GND
V
OUT
Over Current Protection
Thermal Protection
IC331
: NJM2396F05
Low dropout voltage regulator with ON/OFF control
1
V
IN
2
V
OUT
4
ON/OFF
Control
3
GND
Control circuit
TRIGGER OUT
SPEAKERS
FRONT
CENTER
SURROUND
SURROUND BACK/
BI-AMP
VIDEO (6)
VIDEO (1)
(B, G, E, F models)
(U model)
RDS DECODER
RX-V1065 / HTR-6280 (U model)
to DIGITAL_CB25
P
age 120
I2
to OPERATION (6)_CB473
to POWER TRANSFORMER
P
age 124
J9
to OPERATION (2)_CB460
to AM/FM TUNER
(C, R, T, K, A, B,
G, E, F, L, J models)
to HD RADIO TUNER
(U model)
P
age 125
H7
to OPERATION (8)_CB463
P
age 125
K4
to OPERATION (3)_CB477
P
age 124
L2
to MAIN (1)_CB104
P
age 126
G3
to MAIN (1)_CB103
P
age 126
G4
to MAIN (1)_W116
P
age 126
G4
to MAIN (1)_W110
P
age 126
H9
to MAIN (1)_W107
P
age 126
G3