Printed Circuit Boards - Yamaha RX-V595 Service Manual

A B
RX-V595/R-V905/RX-V595RDS
PRINTED CIRCUIT BOARD (Foil side)
1
There are two types of P. C. B. Assembly Tuner for this models in items of construction of components.
One uses the Lead Type Device only and the other uses the Lead Type device and Surface Mount Device (SMD).
These P. C. B. assemblies are interchangeable.
MONAURAL
DISTORTION
ADJ.
DISCRIMINATOR
BALANCE ADJ.
2
FREQUENCY
STEP
(R,T only)
1
24
AM
ANT
3
GND
FM
ANT
4
W1
AM SENSITIVITY
ADJ.
U, C, R, T, A and L models
Semiconductor Location
CIRCUIT CHANGES BY MARKET.
Ref. No. Location
U,C
5
D1 C3
D2 C3 R48
D3 D3
T3
IC1 B3
IC2 C4
J41
IC3 C3
SW1
Q1 B4
Q2 B4
J42
Q3 B3
Q4 B2 R55
Q5 D3
R57
Q6 D2
Q7 C4
R58
R60
40
6
C
P. C. B. ASS'Y TUNER LIST
Model
RX-V595
RX-V595
RX-V595
•
RX-V595RDS
U, C, R, T, A and L models
P. C. B. TUNER (Lead Type)
TO : INPUT (1)
SEPARATION
ADJ.
12
1
11
13
12
22
1 11
22
12
SIGNAL
1
METER
ADJ.
Point 1 (Pin22 of IC2)
R,T A,L
:USED V : 2V/div H : 0.1µsec/div
:NOT USED
0V
2V SAMPLE 0.1us
D E
Markets Lead Type Lead & SMD Lead & SMD : See page 80~81, PRINTED CIRCUIT BOARD
U, C V2518600 V2519300
R, T V2518700 V2519400
A, L V2518800 V2519500
B, G V2518900 V2519600
MONAURAL
DISTORTION
ADJ.
AM
ANT
GND
FM
ANT
W1
B and G models
Semiconductor Location
Ref. No. Location
D1 G3
DC range 1 : 1 probe D2 F3
D3 H3
IC1 F3
IC2 G4
IC3 G3
IC4 H3
Q1 F4
Q2 F4
Q3 F3
Q4 F2
Q5 G3
Q6 H2
Q7 F4
41
F G
P. C. B. TUNER (Lead Type & SMD)
•
B and G models
P. C. B. TUNER (Lead Type)
DISCRIMINATOR SEPARATION
BALANCE ADJ. ADJ.
1 12
13
24
22 12
1 11
22 12
11
1
SIGNAL
AM SENSITIVITY
ADJ. METER
1
ADJ.
Point
Point 1 (Pin22 of IC2)
V : 2V/div
V : 2V/div H : 50nsec/div DC range 1 : 1 probe
0V
0V
SAMPLE 50us 2V
2V 2V
H
TO : INPUT (1)
1 24
12 13
2
2 (Pin12 of IC4)
H : 0.1µsec/div DC range 1 : 1 probe
SAMPLE 0.1us