Yamaha M7CL-32 Service Manual page 300

H G
BLOCK DIAGRAM 010 (M7CL-32/M7CL-48)
1
DCMS
CN110-112
(17P)
+24V
+7.5A
+48A
Lamp_Dimmer
See Page 11
2
3
4
5
Note: DCIN (3) and circuit boards connected in the latter stage are mounted on the M7CL-48 only.
: DCIN (3)
6 12 28CA1-2000003951-10
F E
DCIN (1),(2),(3)
CN101
(17P) +24V
REGULATOR
DC-DC CONVERTER
IC403
+7V
1 IC401 2
(3P)
(5P)
uPC2905AT-E1
PQ1CY1032ZP
REGULATOR
IC404
(3P)
uPC2905AT-E1
REGULATOR
IC405
(3P)
LM2940CSX-5.0
REGULATOR
IC402
(3P)
LM3940IS-3.3
REGULATOR
+7.5A IC301
(3P)
LM2940CSX-5.0
DC-DC CONVERTER
REGULATOR
IC101
IC102
1 2 +18V
(5P)
(3P)
PQ1CY1032ZP
LM2940CSX-15
REGULATOR
IC201
–18V
IC202
1 (5P)
2
(3P)
LM2592HVSX
LM2990SX-15
-ADJ
DC-DC CONVERTER REGULATOR
IC203
(3P)
NJM79L05UA
Lamp_Dimmer
M7CL-48
D C
FDIN
CN505
CN005
(16P)
(16P)
+24V
+5D_1
+5D_1
+5LD
+5LD
+5D_2
HAAD
+3.3D
CN902
CN103-105
(16P)
(16P)
+5A
+15A
–15A
–5A
+48A
* Three HAAD circuit boards for DCIN (2) only.
* DCIN (2)
CN102
Lamp
(2P)
* Connected in case of
DCIN (2), (3) only.
* DCIN (2), (3)
B
M7CL-32/M7CL-48
DC-DC CONVERTER
IC015
1 2
(5P)
+8V PNIN
PQ1CY1032ZP
CN003 CN101
(12P) (12P)
+5D_1
+5LD
+5D_2
+3.3D
+5A
+15A
–15A
–5A
+48A
HAAD 3
POWER SUPPLY BLOCK 2/2
BLOCK DIAGRAM 010 (M7CL-32/M7CL-48)
A