HCD-GX355/GX555/RG270/RG475/RG575
22
22
HCD-GX355/GX555/RG270/RG475/RG575
6-2. BLOCK DIAGRAM – AUDIO/VIDEO Section –
HP/AUX IN
MIC IN
VOL OUT1
DBFB
R-CH
SW OUT
19
SBSO
WFCK
SCOR
EXCK
CDG/_BGC
•
SIGNAL PATH
: CD PLAY
: TAPE PLAY (DECK-A)
: REC
•
R-ch is omitted due to same as L-ch.
: TAPE PLAY (DECK-B)
: TUNER
: AUX IN
: MIC
: VIDEO
CE
TUNED
STEREO
DO
DI
CLK
40
BAND-PASS
FILTER
Q111, 112
FEED BACK
SWITCH
Q141
18
TU-MUTING
R-D
R-C
MIC IN
HP/AUDIO IN
D923
D921
CAPSTAN/REEL
MOTOR DRIVE
Q341, 342
PLUNGER DRIVE
(DECK-A)
Q345, 346
M
M
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
PLUNGER DRIVE
(DECK-B)
Q343, 344
A-HALF
A-MODE
REC (REW)
A-PHOTO
B-PHOTO
B-HALF
B-MODE
REC (FWD)
TAPE MECHANISM
DECK BLOCK
•
Abbreviation
AR : Argentine model
E2 : 120V AC Area in E model
E51 : Chilean and Peruvian models
EE : East European model
MX : Mexican model
FM/AM TUNER PACK
AM
FM ANT
AM ANT
TUNER-L
TUNER-R
LC72121 CE
CE
R-CH
ANT GND
ANT GND
TUNED
TUNED
STEREO
STEREO
TU MUTE
TU-MUTING
LC72121 DI
DO
LC72121 DO
DI
LC72121 CLK
CLK
RDS DATA
R-D
RDS CLK
R-C
FM 75
Ω
COAXIAL
BIAS OSC
L201
REC BIAS
SWITCH
Q231, 232
+9V
BIAS OSC
Q201
PB MUTING
Q209
REC MUTING
Q205, 207
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH
R-CH
R-CH
Q203
L-CH
R-CH
R-CH
(AEP, UK, EE)
R-CH
J751
AUDIO IN
R-CH
+9V
JK801
MIC 1
JK802
MIC 2
VR801
MIC LEVEL
VR851
ECHO LEVEL
JK802
MIC
(E2, E51, AR)
(E2, E51, AR)
(MX)
(MX)
(MX)
(MX)
MUTING
Q801
CDG-DET
VMUTE
MUTE_DATA
CD GRAPHICS
DECODER
IC1001
D-RAM
IC1002
LEVEL SHIFT
Q1005, 1009
CDG-RST
LEVEL SHIFT
Q1002, 1006
VIDEO MUTING
Q1010
CDG/_BGC
CDG-DET
VMUTE
MUTE_DA
TA
CDG-RST
1, 2, 24, 25
9 – 12, 14 – 17
NTSC/PAL
SWITCH
Q1001
J803
VIDEO OUT
X1002
14.31818 MHz
(GX555/RG475/RG575)