Aiwa AV-D55 Service Manual page 9

BLOCK DIAGRAM
TUNER C.B
MAIN C.B
TUNER BLOCK
ST
PLL
TUNE/IFC
IC721
FM
PLL-CE
LC72131D
TM-BASS
IF/DET MPX
IC771
AM
DATA
LA1837
CLK
TUNER L
L OUT
FUNCTION
IC503
PHONO EQ
M62445AFP R OUT
IC501
J501 (1/2) NJM2068MD TUNER
PHONO PHONO
CD VR IN (L)
AUX
CD VIDEO
J502
AUX
FUNCTION
IC502
J901 (1/2)
BU4052BCF
VIDEO 1
DVD/MD IN
MIC OUT
A
J902 (1/2)
B
VIDEO 2
LD/TV IN
J501 (2/2)
TAPE
MONITOR
VIDEO SW
IC901
J901 (2/2) BA7625
VIDEO 1
DVD/MD IN
J902 (2/2)
VIDEO 2
LD/TV IN
H/P C.B (1/2)
J501
VIDEO 3
VIDEO/AUDIO
IN
J904 (1/2)
Q902
VIDEO 1
DVD OUT
J905 (1/2)
Q903
VIDEO 2
LD/TV OUT
J903 (1/2)
Q901
MONITOR
VIDEO OUT
REC OUT SW
IC902
J904 (2/2) BU4066BCF
VIDEO 1
DVD/MD OUT
J905 (2/2)
VIDEO 2
AV-A
LD/TV OUT
AV-B
J903 (2/2)
MONITOR
REC OUT
GRAPHIC
BBE
L IN L OUT
EQUALIZER
IC601
IC701
BA3880S
M62431AFP
TAPE
MONITOR SW
IC701
GEQ C.B
TC4053BF
J750
5.1 CH
INPUT
FRONT
SURR
CENTER
SUB-W
PROLOGIC C.B
9
L IN
DOLBY PROLOGIC
SURROUND DECODER
IC801
DATA
M62463 AFP
CLK
PRO-CE
SELECTOR
IC831
ML2491FP
R-CH
DATA
CLK
PRO-CE
NJM4558MD
DC DET
FRONT/
SURROUND/
CENTER AMP
FRONT/
SURROUND/
CENTER AMP
Q114,115
AC
DET
Q118 Q117
-VFL 2 TIMES
-VFL
REG DET
Q116
Q112,113
DC
HOLD RESET
DET
VM
Q103
Q105,106 Q107~109
+VCC 15W VM
+VCC
REG CUTOFF REG
Q101
-VCC
CONT
Q102
-VCC
-VCC
REG
ST
TUNE/IFC
PLL-CE
T-BASE
µCON
DATA
IC103
CLK
µPD780028GF-027-3BA
STB
S110,112,114~116
STB-31
ADO/CS KEY1
SDA
CS
S101,107~109
SCK S111,113,401,402
SI KEY2
SO
PRO-CE RE RE
IC106 IC106 JOG2
POWER
SYNC DET
JOG1
HP MUTE
VD
Q203~228
Q230~233,240 RY281
Q201
MUTE
FRONT
AMP
R-CH S292 S291
Q202
B A
OFF
MUTE
VM
ON
Q303~326
Q330~333,340
RY801
JR726
Q301
MUTE
SURROUND
AMP
JR727
Q304
MUTE
Q402~417
VM
Q420,421,440
CENTER RY481
JR728 AMP
Q401
MUTE
IC101 VM
Q721
MUTE
JW121
PT101
D121
+VH
-VH
T.F
VS
JW120
FIL1
D107
+VL
FIL2
-VL
10
FRONT C.B
FL101
(DISPLAY)
IC101,102
BU4049BLF
LED
DRIVER
S403
KEY
MATRIX
KEY
MATRIX
SW101
VOLUME
SW102
MULTI
H/P C.B (2/2)
SW401
FUNCTION
J603
PHONES
FRONT
L
SPEAKER A
4Ω/8Ω
J201
FRONT
R
SPEAKER B
4Ω/8Ω
L
SURROUND
SPEAKER
8Ω
R
J301
CENTER
SPEAKER
4Ω/8Ω
J715
SUPER
WOOFER
POWER C.B
D002-004 PT002
F101
AC IN
RY001