Yamaha YPT-340 Manuale di servizio - Pagina 49
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PSR-E343/PSR-E344/YPT-340 OVERALL CIRCUIT DIAGRAM (DMLCD, AM, MVR, PN, 61H-MK, 61L-MK)
1
DMLCD
LCD DRIVER
2
3
4
USB
To Host
SUSTAIN
5
AUX IN
6
7
8
PSR-E343/PSR-E344/YPT-340
9
A
B
C
D
E
SDRAM 16M
CPU
(SWL01U)
ADC
OP AMP
<D-2>
C
D
E
F
G
FLASH ROM 16M
CMOS VOLTAGE DETECTOR
FLASH ROM 128M
REGULATOR +3.3V
REGULATOR +1.8V
DAC
<D-2>
<H-2>
<D-2>
28CC1-2001111920
61H-MK
WARNING
Components having special characteristics are marked
and must be
(C4–C6)
replaced with parts having specification equal to those originally installed.
安全上の注意
印の部品は、安全を維持するために重要な部品です。
交換する場合は、安全のため必ず指定の部品をご使用ください。
XX
: Not installed（未実装）
Note : See parts list for details of circuit board component parts.
28CC1-8822437
注 : シート部品詳細は、パーツリストをご参照ください。
61L-MK
(C1–B3)
28CC1-8822436
F
G
H
I
J
<H-5>
PN
AM
POWER AMP 5.0W 2CH
1
REGULATOR +5V
to BACK-LIGHT ASSEMBLY
H
I
J
K
L
PSR-E343/PSR-E344/YPT-340
1
2
SPEAKER R
28CC1-2001111921 2
3
MVR
28CC1-2001111921 2
4
5
SPEAKER L
6
PHONES/OUTPUT
7
DC IN 12V
8
28CC1-2001111921 2
PSR-E343/PSR-E344/YPT-340
9
K
L