Yamaha Digital Sound Projector YSP-3000, Руководство по обслуживанию

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CB504
CB505
CB506
IC511
IC509
IC508
IC510
CB507
CB508
IC505
IC501
CB501
IC502
IC503
IC504
IC507
IC506
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
YSP-3000/YSP-30D/HTY-7030
85
★ All voltages are measured with a 10M Ω /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.
POWER 1/2
(0)
(59.8)
(59.0)
(15.5)
(4.0)
(0.5)
(2.7)
(0.7)
(0)
(164.1)
16.0
(4.0)
(15.6)
(1.9)
(1.9)
(1.5)
(0)
(-0.2)
(15.6)
(15.6)
(163.8)
(238.3) (238.3)
(163.9)
(163.9)
(0)
15.5
(0)
(2.7)
11.1
10.7
(5.9)
(1.1)
0
4.4
0
0
0
16.0
12.1
15.5
0
0
0
16.0
10.7
11.9
12.9
-36.6 -36.6
-32.7
-32.1 0
12.1
12.1
5.0
5.0
0
12.1 5.0
12.1
5.0
4.1
3.3
0
0
(66.6)
(166.6)
(166.6)
(166.6)
(255.7)
(166.6)
(11.8)
(11.8) (0)
(0)
(2.4)
(1.1)
(5.9)
(166.6)
(0)
(0)
(0)
(65.7)
0 4.4
0 6.8
(7.8)
(1.0)
0.1
0.1
(7.8)
0
0
0
6.8
0
0
4.4
6.8
6.8
0
(0)
(3.9)
(1.0)
1.0
3.2
3.2
3.2
3.3
3.3
4.4
3.3
0
0
3.2
0
0
4.4
4.4
(0)
(3.9)
0
6.8
0.2
0.2
4.4
0.8
0
C-1
C-2
1
2
0.8V/0.68V
8.5V/7.9V
5V VCC
ENB
5V REF
3.5V
4V
RT CT
OSC
+0.24V
R
S
QB
Q
ENB
OUT
PUT
16.5V/9V
UVLO
15.5V
15.5V
5.2
µ
A
0.95mA
PWM
0.8V
Dmax
FA5510: 46%
FA5511: 70%
5V Controlled block
FB
(2)
REF
(7)
CS(8)
VCC(6)
OUT
(5)
GND
(4)
IS+(3) RT(1)
FF
IC504 : FA5511N-D1-TE1
CMOS IC for switching power supply control
IC502 : MIP2F40MSSCF
For switching power supply control
IN
clamp circuit
[LM setting]
[LM ]
variable
circuit (5-100%)
Q
Q
S
VCC
VDD
CL
R
ICL_LOW
MAXDC
CLOCK
12KHz
Constant
current resource
Overheat
protection
[LM ]
compensation
Blankin g pulse
generation
circuit in on-state
Restart
trigger
VCL_OUT
FB
Q
Q
5.7V
5.9V
5.1V
7.5V
VCC UV
VCC UV
VCL
VCC OVP
Oscillator
Light load detection
For intermittent
Oscillation control
Drain current
for detection
Power
MOSFET
Gate driver
VDD clamp circuit
regulator
6.6V
24V
27%
22%
S
R
DRAIN
SOURC
IC508, 512 : NJM431U
Adjustable precision shunt regulator
ANODE REFERENCE CATHODE
1 2 3
IC510, 511: NJM78M05FA
3-terminal positive voltage regulator
IN
OUT
GND
IC509 : NJM78M12FA
Voltage regulator
INPUT
OUTPUT
COMMON
V DD
CE
3 1
5
Pin No. Symbol Description
1 VOUT Output Pin for Voltage Regulator
GND Ground
VDD Power Supply Pin
CE
NC
Chip Enable Pin (active at "H")
B Version No Connection
2
3
4
5
2
V
OUT
4 NC
GND
IC507 : R1154N033B-TR-F
Voltage regulator
Vref
Short
Protection
Circuit
Current
Limit
Circuit
Thermal
Shutdown
POINT C-1 C-2 1 / Pin 1 of IC507, 2 / Q505 (C)
AC cable ON
AC cable OFF
IC507 1pin
Q505 (C)
1
2
IC507 1pin
Q505 (C)
1
2
AC cable ON
AC IN
POWER (1)
Primary side ground
Primary side ground
Primary side ground
to AMP_CB511
P
age 83
L2
to INPUT_CB12
P
age 81
J7
to PO
WER (2)_W901
P
age 86
K5
to DSP_CB7
P
age 80
K2
to HDMI_CB5
P
age
84
N10
5 k-ohms
10 W
5 k-ohms
10 W
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。
・ 下記箇所には電源をOFFにした後も電荷が残り、高電圧が維持されており危険です。
修理作業前に放電用抵抗（5 kΩ/10 W）を下記箇所の端子間に接続して放電してください。放電所用時間は約30秒間です。
1. POWER （ 1 ） P.C.B. のC504／C505
2. POWER
（
1
）
P.C.B.
のC518
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves.
• Note that positions indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.
Before starting any repair work, perform discharge by connecting a discharge resistor (5k-ohms/10W) between terminals at following positions. The time required for
discharging is about 30 seconds.
1. C504/C505 on POWER (1) P.C.B..
2. C518 on POWER (1) P.C.B.
.