Yamaha RX-V2600 Service Manual page 110

A B C
RX-V2600/DSP-AX2600
SCHEMATIC DIAGRAM (A-VIDEO 1/2)
1
2
47/16
47/16
3
47/16
4
5
6
0.6 0.6
0.6
0 0 0
0 0 0
7
0 0 0
0 0 0
0 0 0
8
9
10
# 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.
110
D E F
4.3 3.6
4.5
47/16
47/16 4.6
4.5
3.6
4.3 3.6
4.6
47/16
47/16 4.6
4.6 3.6
4.3
3.6
4.6
47/16
47/16
4.6
4.6
3.6
5.1
5.0
0 3.0 4.3
5.0
0.1 -5.0
5.0
0.1
0.1 -5.0
5.1 0.1
0.1 -5.0
5.0 0.1
3.4
8.9
3.4 3.5
8.9
3.5
8.9
INPUT & LINE
0
0dB
8.9
0
SELECTOR
0
8.9
0
8.9
0.1
0 0.1
0
0.6
0.1
0.6
0 0
0.1
0
0 0.6
0.6
0
0
0 0.6
0.6
0
0
0
0.6
0
0
0
0
0
5.0 5.0
0
LINE SELECTOR
J model
G H
Page 103 H2
to FUNCTION (1)_CB312
4.9 0
2.4 4.9
4.9 4.9
4.9
4.9
0
0
2.8 2.3
0
2.4 0
0
1.5
0 0
0 0
0
2.6
4.8 4.9
2.9 2.6
0 0
2.9 2.6
0 0
4.9
3.1
FREQUENCY
COUNTER
0
0
B-1
0 8.9
8.9
0
4.9
0
6.3
0
0
0 0
8.9
Page 111 G9
to A-VIDEO (2)_CB703
A-VIDEO (1)
Page 108 L2
to INPUT (5)_CB316
POINT B-1 Pin 9 of IC605
I J K
IC601: NJW1321FP1
2
Wide Band Video Switch with I C BUS
Y/R IN1
6dB Y/R OUT1
Y/R IN2
Y/R IN3
Y/R IN4
6dB Y/R OUT2
Pb/G IN1
6dB Pb/G OUT1
Pb/G IN2
Pb/G IN3
Pb/G IN4
6dB Pb/G OUT2
Pr/B IN1
6dB Pr/B OUT1
Pr/B IN2
Pr/B IN3
Pr/B IN4
Pr/B OUT2
6dB
PORT 0 ADDRESS
PORT 1 SDA
PORT 2 SCL
2
I C BUS
PORT 3 AUX 0
V+ AUX 1
GND BIAS AUX 2
VREF AUX 3
DGND
IC603, 604: MM74HC4052SJX
Dual 4-Channel Analog Multiplexer
X CHANNELS IN/OUT
VCC X3 X2
16 11 15
A 10
Binary
B 9 to
Logic 1 of 4
Level Decoder
Conversion with
INHIBIT
C 9
8 7 1 5
GND VEE Y0 Y1
Y CHANNELS IN/OUT
IC605: TA1318AF
SYNC Processor, Frequency Counter IC for TV Component Signals
DAC3 VD2-OUT VD1-OUT NC SYNC1-IN DAC1 SYNC2-IN Address SW
30 29 28 27 26 25
DAC3 INV INV SYNC DAC1
SW SW SW SEPA SW
TEST DAC3 DAC1
DV2-OUT DV1-OUT
SW SW
V-Input
SW
H/V-
V-FREQ
FREQ
Counter V-SYNC DET SW
DAC2
H/C- DAC2 V
SYNC SW Integral
H-FREQ H-INPUT
DET SW SW
1 2 3 4 5 6
HD2-IN VD2-IN HD1-IN VD1-IN Analog GND NC NC AFC Filter
IC606: LA73054-TLM-E
Analog Amp
L M N
IC602: NJM2581M
Video Amp
6dB 75Ω
VIN1 1 14 V+1
AMP Driver
BIAS
NEE1 2 13 VOUT1
38 25
39 75Ω
GND 24 Pb OUT2 VIN2 3 6dB 12 V+2
AMP Driver
Pr IN4 PORT0
V+ PORT1
Y IN3 Pr OUT2 BIAS
VEE2 4 11 VOUT2
GND V+
Pb IN3
VREF
V+ DGND
6dB 75Ω
Pr IN3 VIN3 5 10 V+3
GND AMP Driver
GND SDA
Y IN2 48 15 SCL
VEE3 6 BIAS VOUT3
9
1 14
PowerSave 7 REF 8 GND
X1 X0
14 12
TG
TG
TG
COMMON X
OUT/IN
13
TG
TG 3
COMMON Y
OUT/IN
TG
TG
TG
2 4
Y2 Y3
SCL SDA NC HD2-OUT Digital GND NC HD1-OUT
24 23 22 21 20 19 18 17 16
2
SYNC I CBUS INV INV
SEPA Decoder SW SW
HD2-OUT HD1-OUT
SW SW
V-FREQ
V C/D
SW
Clamp
CP
Pulse
SW
HD 2 υ f
H
Polarity
H-AFC H C/D H-Ramp
H-FREQ
HVCO
SW
7 8 9 10 11 12 13 14 15
HVCO V NC CC DAC2 VD3-IN HD3-IN CP-OUT