Service manual

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BCDEFGH I JK
L MN
RX-V559/HTR-5950/DSP-AX559
86
★ 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.
OPERATION HTR-5950
to DSP_CB5
Page 81
B5
to FUNCTION (1)_CB205
Page 84
E7
to TRANSFORMER
to DSP_CB3
Page 81
B8
to FUNCTION (1)_CB203
Page 84
E7
to POWER CABLE
to MAIN (1)_W1029
Page 87
H8
to POWER TRANSFORMER
OPERATION (1)
OPERATION (6)
OPERATION (3)
OPERATION (4)
OPERATION (5)
FL DRIVER
52
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG11/
SEG42
51
DIG12/
SEG41
50
DIG13/
SEG40
49
DIG14/
SEG39
48
DIG15/
SEG38
47
DIG16/
SEG37
46
DIG17/
SEG36
45
SEG35
XOUT
6
Vcc1
8
Vcc2
18
Vss
5
Vp
64
XIN
7
CS
SCK
3
SDATA
4
RESET
1
SEG00
44
9
SEG34
SEG26
17
19
SEG25
Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35 bit x 166)
CGROM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00
63
53
DIG10
IC301 : M66003-0131FP
FL display driver
2
data
timing
clock
dot data
write
scan pulse
IC302 : TC4013BP
Dual D-type flip flop
4
RESET1
1
Q1
6
SET1
5
DATA1
CL
3
CLOCK1
CL
CL
CL
CL
CL
2
Q1
10
RESET2
13
Q2
8
SET2
9
DATA2
7
VSS
14
VDD
11
CLOCK2
12
Q2
CL
CL
CL
CL
CL
CL
PORTABLE
6800P6800P
220K