Sony HCD-GX255, Руководство по обслуживанию, Страница: 22 / 138

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HCD-GX255/RG170/RG470
HCD-GX255/RG170/RG470
IC901 (2/4) (SUFFIX-11)
IC901 (2/4) (SUFFIX-12)
SYSTEM CONTROLLER
INPUT SELECT, TONE CONTROL,
ELECTRICAL VOLUME
58
MIC
HP/AUX IN
MIC IN
37 TONE OUT1
15 REC OUT1
33 VOL OUT1
35
BBIN1
VOL OUT1
DBFB
R-CH
19
SI
1 CD L
61 TUNER L
3 TAPE L
9 TAPE A1
7 PB OUT1
11 TAPE B1
63 MD L
3 DATA
5 SFSY
4 SBSY
2 CLCK
52 DEN
SBSO
WFCK
SCOR
EXCK
CDG/_BGC
36 VIN1
CD-L
A
HP IN
E
•
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
AMS OUT
BAND-PASS
FILTER
Q111, 112
FEED BACK
SWITCH
Q141
55
SAOUT1
18
SC
66
I-LC72121-DI
65
O-LC72121-CLK
68
O-LC72121-CE
69
I-TUNED
70
I-STEREO
90
O-REC/PB
91
O-BIAS
67
O-LC72121-DO
TU-MUTING
71
O-ST-MUTE
R-D R-C
72
I-RDS-DATA
18
I-RDS-CLK
MIC IN
HP/AUDIO IN
82
I-MIC
81
I-HP/AUDIO IN
92
I-TAPE-AMS
93
I-STREAM
94
I-VACS
D923 D921
1
O-BD3401-DATA
2
O-BD3401-CLK
87
O-B-SOL
86
O-A-SOL
85
O-MOTOR
63
O-VMUTE
60
I-CDG-DET
59
I-CDG-BGC
57
I-CDG-MUTE-DATA
58
0-CDG-RST
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
I-REEL-A
I-REEL-B
88
83
84
I-TAPE-A-STAT
B-HALF
B-MODE
REC (FWD) 89 I-TAPE-B-STAT
TAPE MECHANISM
DECK BLOCK
•
Abbreviation
AR : Argentina 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, EE)
(AEP, 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
MIC AMP
IC801 (1/2)
ECHO AMP
IC802
MIC AMP
IC801 (2/2)
SCHMIT
TRIGGER
IC1005
13 WE
C
G
B
37 GDET
44 VOUT
CDG-DET
VMUTE
6 MUTE
MUTE_DATA
CD GRAPHICS
DECODER
IC1001
D-RAM
IC1002
LEVEL SHIFT
Q1005, 1009
VIDEO AMP
IC1006
54 RESET
DQ1 – DQ4
A0 – A7
VD0 – VD3
VA0 – VA7
CDG-RST
LEVEL SHIFT
Q1002, 1006
VIDEO MUTING
Q1010
CDG/_BGC
CDG-DET
VMUTE
MUTE_DA
TA
CDG-RST
25, 27, 29, 30
15 – 22
1, 2, 24, 25
9 – 12, 14 – 17
WE 3
28 OE
OE 22
14 RAS
RAS 4
26 CAS
CAS 23
NTSC/PAL
SWITCH
Q1001
J803
VIDEO OUT
X1002
14.31818 MHz
59
60
XI1
XO1
IC101 (SUFFIX-11)
IC101 (SUFFIX-12)
6-2. BLOCK DIAGRAM – AUDIO/VIDEO Section –
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(Page 21)
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