Yamaha YSP-600 Service Manual page 77

A B C
INPUT 1/2
1
5.8 5.8
6.4 5.8
6.4
8.3
8.3
VCR (U, C, T, K, A, B, G, E, F, L, V models)
VIDEO (J model)
5.8 5.7
AUDIO
2
INPUT 6.3 5.8
5.8
6.4
8.3
8.3
TV/STB (U, C, T, K, A, B, G, E, F, L, V models)
TV/TUNER (J model)
ANALOG IN
0
0
0
3 2.8
OUT
0
IC1 5.1 IC1
2.7 3.3 3.3 0.4
0
COAXIAL
DVD (U, C, T, K, A, B, G, E, F, L, V models)
AUX (J model)
DIGITAL IN
4
DIGITAL
OUT
0.2
0
5.1
4.4
OPTICAL
0
5.1
AUX (U, C, T, K, A, B, G, E, F, L, V models)
IC1 IC1
DVD (J model)
0.2 5.0 5.0 0
CB1
4.4 0 0 0
IC1 IC1
5
Writing port
JK1
10.3
11.8
10.8
10.8
0
0
10.8
0
6
0
0
INPUT (2)
7
-20.7
-12.5
8
-11.0
-20.7
FL DRIVER
-20.7
-22.3
-14.1
IC901
-15.8
-15.8
-11.0
3.1 3.1 3.1
-15.8
-22.3 -22.3 -22.3
-17.5
-22.3 -22.3 -22.3
9
INPUT (3)
IC1: TC74HCU04AFEL IC2: NJM3404AM-TE1
Hex inverters Single-supply dual operational amplifier
1A VCC
1 14
+DC Voltage
Output A
1 +V 8
Supply
1Y 6A Inverting
10 2 13
2 7 Output B
Input A - +
2A Inverting
3 12 6Y Non-Inverting
3 6
Input A + - Input B
Non-Inverting
2Y 4 11 5A -DC Voltage Supply 4 -V 5
Input B
3A
5 10 5Y
3Y
6 9 4A
GND 7 8 4Y
D E F
INPUT SELECTOR
0
5.8
11.1
5.8
5.8
5.1
IC5 11.1
IC4
5.8
11.1
5.8
3.3
IC4
0
0
0
0
5.7
5.8
5.1
5.8
IC5
IC4
5.8
5.8
AMP
10.6
IC2
10.6 SUBWOOFER OUT
0
11.1
5.6
IC2
0
5.6
0.7
5.6
0
0
5.1
3.3 IC9
5.0
3.8 0.1
5.0 5.0
OSD
1.8 0
0 2.6
2.2
IC8
5.0
0
0
0 5.1
0 A-1 5.1
5.0
2.5
1.8
0
5.1
REGULATOR
RS232C DRIVER
5.1
IC10 0
IC6
3.2
CB8
Page 78 L4
to INPUT (1)_W509
Page 75 K6
to DSP_CB205
-24.1
3.1 3.1 3.1 -17.0
-11.1 -20.7
-12.5
-11.1 -12.2 -20.7
-20.5
-20.7
-12.5
-12.2
0
-12.5
-11.0
-12.5
-11.1
3.1
3.1 3.1
1.4
1.4
-12.2 -20.5
0
-12.3
-20.5
0
3.1
3.1
3.1
IC4: TC4052BF IC5, 801: NJM2068MD-TE2 IC6: MAX3232CDWR
Analog multiplexer/demultiplexer
Dual operational amplifier 3-V to 5.5-V multi-channel RS-232 line driver/receiver
VDD
16
13 X-COMMON
OUT +V
I/O c O/I 12 0X 1 1 8 CC
14 1X
I/O c O/I
A 10
–IN 2 7 OUT
I/O c O/I 15 2X 1 2
+ – + –
I/O c O/I 11 3X
B 9
+IN 1 3 6 -IN 2
I/O c O/I 1 0Y
I/O c O/I 5 1Y
INH 6
–V CC 4 5 +IN 2
I/O c O/I 2 2Y
I/O c O/I 4 3Y
3 Y-COMMON
8 7
VSS VEE
G H
11.1
11.8
0
CB7
Page 78 L1
to INPUT (1)_W508
IC11
W6
Page 79 N10
to HDMI_CB5
5.1 3.3 3.3
IC7
CB4
Page 78 L3
to INPUT (1)_CB505
0
IC7
0
0
3.3
IC7
5.1 3.3
3.3
IC7
5.1 3.3
7.8
7.8
W5 CB801
CB3
CB901
Page 78 L5
to INPUT (1)_W506
CB902
Page 75 K4
to DSP_CB204
4.1
4.1
4.1 W991
0.2
0
CB903
Destination for A/D port
Pull-up resistance 10 k-ohms
R71(INPUT P.C.B.) [ohm]
A/D value (3.3 V=255)
3.1
3.1
0
Key detection for A/D port
IC7: TC74HCT08AF
A/D value (3.3 V=255)
Quad 2-input AND gate
C1+ VCC
1 16
1A 1 14 Vcc
V+ 2 15 GND 1B 2 13 4B
1Y 3 12 4A
C1 3 14 DOUT1
11 14 2A 4 11 4Y
DIN1 DOUT1
C2+ 4 13 RIN1
2B 5 10 3B
10 7
5 12
C2 ROUT1 DIN2 DOUT2
2Y 6 9 3A
V 6 11 DIN1 12 13 GND 7 8 3Y
ROUT1 RIN1
7 10
DOUT2 DIN2
9 8
ROUT2 RIN2
8 9
RIN2 ROUT2
I J K
IC8: MB90050PF-G-118-E1
OSD controller
SIN
Serial input
SCLK
control
CS
VIN
YIN
CIN
HSYNCI
VSYNCI Sync control
FLDI
SYNCST
HSYNCO
VSYNCO
NTSC/PAL
signal
CSYNCO
generator
FLDO
circuit
VBLKO
Display Memory control
BUSY
VRAM
(35 characters
× 16 lines)
EXS
4FSC clock
XS oscillation
circuit
FSC4O
EXD
Dot clock
oscillation
XD
circuit
DCLKO
RESET
POINT A-1 XL1 (Pin 6 of IC8)
FLDI 1
VSYNCI 2
HSYNCI 3
V CC 4
V SS 5
EXS 6
XS 7
FSC4O 8
VSYNCO 9
HSYNCO 10
CSYNCO 11
VBLKO 12
10.9
4.9
IC801
4.9
4.9
4.8
4.6
IC801 0
1.2
6.4
0
0 0
0 0
0
4.9
INPUT (5)
VOLUME INPUT VOLUME
+ -
STANDBY/ON
INPUT (4)
39 k 91 k 24 k 15 k –
DEST [V] 2.475 - 2.805 2.805 - 3.135 2.145 - 2.475 1.185 - 2.145 3.135 - 3.3
191 - 217 217 - 242 242 - 255
166 - 191 92 - 166
T, A, B, G, E, F, L B, G, E, F
Destination U, C K, V J
(YSP-600) (HTY-760)
Ohm 0 + 1.2 k
V 0 - 0.165 0.165 - 0.495
0 - 13 13 - 38
KEY0 (138 pin) VOLUME+ INPUT
KEY1 (139 pin) VOLUME- –
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
# 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.
L M N
YSP-600/HTY-760
IC8: MB90050PF-G-119-E1
OSD controller
SIN
Serial input
Each block
SCLK
control
Each block
CS
VIN VOUT
Analog
VOUT
Analog YIN
switch YOUT
switch YOUT
CIN
COUT
COUT
HSYNCI
VSYNCI
Sync control
Video signal
Video signal
FLDI generator circuit
generator circuit
SYNCST
HSYNCO
DCOL5 to DCOL0
VSYNCO
DCOL5 to DCOL0 NTSC/PAL Output control
Output control DB
signal
DB CSYNCO
generator DH
Palette
DH FLDO
circuit
Palette (4 bits→6 bits)
(4 bits→6 bits) VBLKO
Display Memory control
BUSY
VRAM
Font RAM
(35 characters Font ROM
Font RAM
Font ROM (512 characters) (8 characters)
× 16 lines)
(8 characters)
(512 characters)
PO3
EXS
PO3 4FSC clock
oscillation PO2
XS Each block Port control
Each block Port control PO2 circuit
PO1
FSC4O
PO1
PO0
PO0
EXD Dot clock
oscillation
XD Each block
Each block circuit
DCLKO
All reset
RESET
All reset
FLDI 1 36 PO3
36 PO3
VSYNCI 2 35 PO2
35 PO2
HSYNCI 3 34 DCOL5
34 DCOL5
V 4 33 DCOL4
CC
33 DCOL4
V SS 5 32 DCOL3
MB90050
32 DCOL3
MB90050 EXS 6 31 DCOL2
31 DCOL2
XS 7 30 DCOL1
30 DCOL1
FSC4O 8 29 DCOL0
29 DCOL0
VSYNCO 9 28 DCLKO
28 DCLKO
HSYNCO 10 27 DB
27 DB
CSYNCO 11 26 DH
26 DH
VBLKO 12 25 RESET
25 RESET
INTELLIBEAM
MIC
JK801
IC901: M66003-0131FP-R
18 digit 5 x 7 segment VFD controller/driver
Display code
RAM CGROM
(35-bit x 166) 44 SEG00
(8-bit x 60)
Segment 19 SEG25
Code
write output
17 SEG26
circuit
CGROM
Serial dot data 9 SEG34
CS 2 data (35-bit x 16)
write
SCK 3 receive
Code/
SDATA 4 circuit
command
45 SEG35
control
circuit
DIG11/
52
SEG42
DIG12/
51
SEG41
Segment/
code DIG13/
Digit 50
select SEG40
select/ DIG14/
49
XIN 7 Clock output SEG39
timing Display
generator clock controller scan pulse circuit DIG15/
XOUT 6 48
SEG38
DIG16/
47
SEG37
DIG17/
46
SEG36
63 DIG00
Digit
RESET 1 output
circuit
Vcc1 8
53 DIG10
Vcc2 18
Vss 5
Vp 64
IC11: NJM2388F63
Low dropout voltage regulator with ON/OFF control
V 1 2 V
IN OUT
Bandgap
Reference
ON/OFF
Cont 4
control
Over Voltage Thermal Over Current
Protection Protection Protection
GND 3
IC10, 12: NJM78M05FA
3-terminal positive voltage regulator
IN
OUT
GND
77