Yamaha YPT-220 Manuale - Pagina 41
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A
B
PSR-E223/YPT-220 OVERALL CIRCUIT DIAGRAM (DMLCD, PNAM 1/3, PNAM 2/3, PNAM 3/3, MK-H, MK-L)
1
LCD DRVER
2
XX
3
SYSTEM
RESET
4
5
6
MK-H
(C4–C6)
7
MK-L
(C1–B3)
8
PSR-E223/YPT-220
9
A
B
C
D
E
CPU
(SWL01)
DAC
C
D
E
F
G
DMLCD
XX
P2ROM 32M
MR27T3202L-24RTNZ
XX
XX
REGULATOR
+3.3V
REGULATOR
+2.5V
OP AMP
28CC1-2001045356
: Ceramic Capacitor（セラミックコンデンサー）
: Mylar Capacitor（マイラーコンデンサー）
: Metal Film Resistor（金属被膜抵抗）
: Not installed（未実装）
XX
28CC1-8819596
Note : See parts list for details of circuit board component parts.
注 : シート部品詳細は、パーツリストをご参照ください。
28CC1-8819596
F
G
H
I
J
PNR
XX
PNAM
2/3
PHOTO
28CC1-2001045357
COUPLER
IN
XX
PNAM
XX
MIDI
MVR
OUT
SUSTAIN
XX
28CC1-2001045357
PNL
(REW)
(FF)
(A-B REPEAT)
(PAUSE)
XX
POWER AMP
XX
XX
XX
XX
XX
XX
REGULATOR +5V
28CC1-2001045357
WARNING
Components having special characteristics are marked
and must be
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。
H
I
J
K
L
PSR-E223/YPT-220
1
RP102N251D-TR-F (YA216A00)
REGULATOR +2.5V
DMLCD: IC402
5
4
2
1
1: V
DD
2
2: GND
3
3: CE
4: NC
5: V
OUT
2SB1342 (WD92690R)
TRANSISTOR
PNAM: TR101
SPEAKER R
2
3
1
1: BASE
3/3
1
2: COLLECTOR
2
3
3
3: EMITTER
2SC1740S (IC174070)
MASTER
TRANSISTOR
VOLUME
PNAM: TR102,TR301,TR302
2
3
1: EMITTER
1
2
2: COLLECTOR
3
3: BASE
1
4
2SC5395 (WE43590R)
TRANSISTOR
PNAM: TR102,TR301,TR302
PNAM
1/3
2
3
1: EMITTER
1
2
2: COLLECTOR
3
1
3: BASE
KTC3199 (WE43600R)
TRANSISTOR
PNAM: TR102,TR301,TR302
5
2
3
1: EMITTER
1
2
2: COLLECTOR
3
1
3: BASE
6
SPEAKER L
PHONES/
OUTPUT
XX
BATTERY
7
XX
DC IN 12V
PA-3C/PA-130
XX
8
PSR-E223/YPT-220
9
K
L