Yamaha HTR-6280, Service Manual

Page: 159 / 166

ABCD
E
F
G
H
I
J
1 2 3 4 5 6 7
RX-V1
065/HTR-6280/AX-V1
065
15
9
R
A
V287
(U model)
R
A
V288
(C, R, A, L models)
R
A
V294
(T
, K, B, G, E, F models)
R
A
V286
(J model)
These PADs are test point ISP in the production line
Revision history:
ZLF645E0H2864G
24AA128/SO-08
X1
8.00MHz
1
3
2
14
7
7 6 5 8
2 3 4 1
15
6
16
5
18
4
11
23
12
21
13
20
17
19
8
3
9
2
10
1
22
28
24
27
25
26
U1
VDD
XTAL2 XTAL1
P31 P32 P35 P37
P30/PREF
P36 P20
VSS
P21 P34 P33
P27 P26 P25 P03 P04 P02 P06 P05 P00 P23 P24 P22 P07
GND
SDA SCL WP VCC
A2 A1 A0
P01
UPD6P8AMC
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
U3
U2
IR RECEIVE
IR_DIODE
KI/O6
KI/O5
KI/O7
S0
REM
S1/LED
VDD
XOUT
XIN
GND
S2
KI/O4 KI/O3 KI/O2 KI/O1 KI/O0 KI3 KI2 KI1 KI0
K40 K44 K47 K46 K42 K43 K41
K4 K1 K2 SW2 K3 K6 K7 K5
K36 K32 K33 K35 K34 K38 K39 K37
K8 K12 K13 K15 K14 K10 K11 K9
K24 K28 K29 K31 K30 K26 K27 K25
K20 K16 K17 K19 K18 K22 K23 K21
K63 K65 K66 K67 K68 K64 K69 K62
K59 K61 K55 K56 K60 K57 K58
K45 K50 K51 K49 K52 K53 K54 K48
K79 K81 K82 K83 K84 K80 K78
K75 K77 K70 K71 K72 K76 K73 K74
P3
S2
S1
S0
K1
GND
P2
P1
R5
R4
R8
R6 R2
R3
R1
R9
Q1
Q2
R7
56K
10K
10K
10K
4.7K-ohms
220 ohms
47 ohms
10 ohms
1 ohm
VCC
D2
D1
D3
LED
SW1
ZONE2 MAIN
X2
4.00MHz 1
3
2
VDD
VDD
VCC
VDD
C3
0.1μF
C2
0.1μF
C1
47μF
+
P
ANELS
●
R
A
V287:
U model / R
A
V288:
C,
R,
A,
L models / R
A
V294:
T
, K,
B,
G,
E,
F models / R
A
V286:
J model
SCHEMA
TIC DIA
GR
AMS
R
A
V286/R
A
V287/R
A
V288
R
A
V294
■
REMO
TE
CONTR
OL
7 6 5 4 23 21 20 19 3 2 1 28 27 26
K48
K51
K56 K83 K57
K40
K44
K55 K84 K82
K49
K53
K50
K54
K52
K66
K70
K67
K72
K68
K73
K69
K71
K65
K59
K78
K74
K79
K76
K80
K77
K81
K75
K28
K24
K29
K26
K30
K27
K31
K25
K16
K20
K12
K8
SW2
K4
K32
K36
K17
K22
K18
K23
K19
K21
(RAV287)
(RAV287)
K13
K10
K14
K11
K15
K9
K1
K6
K2
K7
K3
K5
K33
K38
K34
K39
K35
K37
K45
K42
K46
K43
K47
K41
K61
K60
K64
K63
K58
K62
14 15 16 18 11 12 13 17
8 9
10 22 24 25
U1
RLS4148
D3
J2 J1
J9
D4
RLS4148
VDD XTAL2 XTAL1 P31 P32 P35 P37
P30/PREF
ZLR64400H2864GR
or ZLF645E0H2864GR
P36 P20 VSS P21 P34
P1
VSS
VCC
VDD
P33
P27 P26 P25 P03 P04 P02 P06 P05 P00 P23 P24 P22 P07 P01
R1
C1
47μF
X1
8.00MHz
+
1 ohm
Q1
R5
R4
R3
4.7 K-ohms
10 ohms
56 K-ohms
R2
47 ohms
D1
SW1
R6 56 K
ZONE2
MAIN
D2
IR_DIODE
LED
1
3
2
RA
V286
RA
V287, 288
J1
O X
SW1
X
O
R6
X O
J9 O X
J2
X O