Yamaha MCX-C15 Service Manual page 34

A B
MCX-C15/MCX-CA15
PRINTED CIRCUIT BOARD (Foil side)
1
FUNCTION (2) P.C.B.
(Side A) Lead Solder Used
TIMER
STANDBY/
MENU
1
PLAY/STOP
2
2
CONTROLLER FAVORITES
3
VOL -
4
3 VOL +
FUNCTION (2) P.C.B.
(Side B) Lead Solder Used
4
LCD
MAIN
CB203
LCD
5
34
6
C
When any part not included in the Parts List has failed, replace the P.C.B.
パーツリストに記載されていないパーツの故障の場合、P.C.B.を交換してください。
SYSTEM (1) P.C.B.
(Side A) Lead Solder Used
AV IN
ON
R
VIDEO AUDIO OUT
Point 6 (Pin 3 of IC901)
V: 2V/div, H: 200nsec/div
DC, 1 : 1 probe
0V
NOTE)
The FUNCTION P.C.B. actually has a four-layer pattern structure (part
face pattern, internal pattern 1, internal pattern 2 and solder face
pattern) but it is shown as "part face pattern + solder face pattern"
in this diagram.
NOTE)
FUNCTION P.C.B.は、4層パターン構造（部品面パターン、内層1パター
ン、内層2 パターン、ハンダ面パターン）ですが、本図のF U N C T I O N
P.C.B.は、部品面パターン＋ハンダ面パターンを表記しております。
D E
MCX-C15
DC OUT DC IN
6
4 5
3 1
7
CH2
7 CH1
L
IR OUT CONTROL
OUT
Point 7
CH1: Pin 2 of IC902
CH2: Pin 1 of IC902
V: 5V/div, H: 4.0sec/div
DC, 1 : 1 probe
VIDEO OUT
CH1
DC IN
CH2
AC POWER ON AC POWER OFF
(Connect the power cable) (Disconnect the power cable)
F G
SYSTEM (1) P.C.B.
(Side B) Lead Free Solder Used
4 5
3 1
SYSTEM (2) P.C.B.
(Side A) Lead Solder Used (Side B) Lead Free Solder Used
FUNCTION (1)
W401
H
SYSTEM (2) P.C.B.