Yamaha RX-V1800 Service Manual page 87

A B
1
AC IN
2
3
4
• See page 136, 137 →
FL
SCHEMATIC DIAGRAM
5
6
OPERATION
• See page 126 →
SCHEMATIC DIAGRAM
7
C D
CONTROL/POWER SECTION BLOCK DIAGRAM
• See page 128 →
POWER
SCHEMATIC DIAGRAM
RY1
TEI
POWER DETECT
IC1,2,3 /RESET
Q1,3
Q6
IC407
s10
+5.5
Q2
T1
POWER
RELAY
• See page 122-125 →
FUNCTION
SCHEMATIC DIAGRAM
111
25
IR REMOTE
80
U9001 102
MAIN/ZONE SW
SW802
103
MASTER SW 64,66,67,68
SW808
62,63
115,119
VOLUME
47
SW806
MICROPROCESSOR
31
107,108 M30845
INPUT SELECTOR
IC402
SW803 28
113,114
PROGRAM
95
SW807
123,124 85
81
OPERATION
109,110
82
• See page 126 →
20 22
XL402
SCHEMATIC DIAGRAM
20MHz
PANEL KEY
SW901-902, 904-905, 907-914
FL DISPLAY FL DRIVER
V9001 IC901, 902
ZONE 2/3 KEY
ON/OFF
(U, C, R, T, K, A, B, G, E, L models)
PURE DIRECT
SW801
E F
POWER TRANSFORMER
RY251
RY250
F1 RE
OR
BL
BK
BL
OR
RE
RYBL
RYBM
Q21
RE
2SD2014
2SD2014
WH
POWER
DETECT
RESET
RE
2SB1257
Q22
FUNCTION
+BDV
• See page 122-125 →
SCHEMATIC DIAGRAM
PU
IC7
SI-800BHFE
BL
+5M
GY
D4008
+5MM
+5SDV
D4009 Q4005
+5SPC BL
+5M2
PU
MG
POWER
IC10
SAVE
BA00JC5W
79M05
IC6
YE
YE
IC12
R37
BL
BA00JC5W
POWER SAVE
BL
POWER RELAY
FULL MUTE CONTROL
IC8
R33
OR
ZONE2/3 MUTE CONTROL SI-800BHFE
DIGITAL FULL MUTE
+6S
DSP
XMPWR (U, C models)
i PDET
iPod ACCESSORY
POWER DETECT
i PWR
RYBL OR
RYBM
G H
+B
G
-B
• See page 127 →
MAIN
SCHEMATIC DIAGRAM
+12
Q20 +12T
+5D2
G
-12
IC5
7809 +9V
+5VD
IC9
BA00JC5W +3.3VD
DVG
+5VA
AVG
-5VA
FL1
FL2
+5I
IGND
IC545
PQ200WNA +5BUS (U, C models)
Q16
2SD2014
+2.5D
IC542
NJM2885DL +1.2V1
IC541
+1.2V2
R1172S121D
IC543
PQ200WNA +5D1
IC544
NJM2885DL +3.3V
DG
• See page 119-121 →
DSP
SCHEMATIC DIAGRAM
I J
RX-V1800/HTR-6190/DSP-AX1800
87