Yamaha HTR-4063, Service Manual

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W3701A
W3702A
CB378
CB371
IC371
IC372
CB372 CB373
CB379
IC374
CB381
W3801
CB382
VIDEO (7)
(W3701B)(W3702B)
MAIN (4)
(W1006A)(W1006B)
U, C, T, K, A, B, G, F, J models
BE
WH
R, L models AC IN
VIDEO (2) P.C.B.
(Side A)
VIDEO (3) P.C.B.
(Side A)
A
C_PWR
DGND
+5.5V +5.5V
GND GND
PR
Y_IN
A
C_PWR
DGND +5.5V +5.5V GND GND PR
Y_IN
5.5V 5.5V
GND GND
DES
T
PR
Y
/RESET
A
CPWR_DET
DGND
+3.3M
DIGITAL
(CB7)
DIGITAL
(CB24)
1
A R K
3
7 4
5 k-ohms
10
W
A B C D E F G H I J
1
2
3
4
5
6
7
96
RX-V467/HTR-4063 注意）
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。
VIDEO（2）P.C.B. の C3703
Notes)
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.
C3703 on VIDEO (2) P.C.B.
• Semiconductor Location
Ref no. Location
D3701 D3
D3703 D4
D3705 D4
D3706 D4
D3707 C5
D3709 C5
D3710 E4
Ref no. Location
IC371 D4
IC372 E5
IC374 E5
IC375 C5
Q3801 I4
Q3802 I4
DRAFT