Block Diagram - Main Section - Sony HCD-GT22 Service Manual

HCD-GT22/GT44/GT55
Q Q
3 7 6 3 1 5 1 5 0
7-2. BLOCK DIAGRAM – MAIN Section –
AUDIO+9V
J801
MIC
HP IN
(Page 25) B
J802
AUDIO
R-CH
CD-L
A
(Page 23)
L-CH
HP1
(PB)
(DECK-A)
R-CH R-CH
L-CH
MUTING
T E
L 1 3 9 4 2 2 9 6 5 1 3
Q305
R-CH
R-CH R-CH
HRPE1
MUTING MUTING
(REC/PB/ERASE)
Q401, 403 Q307
(DECK-B)
R-CH
MUTING CONTROL
CONTROL SWITCH
T001
BIAS OSC
REC BIAS
SWITCH
Q454, 455
ERASE
BIAS OSC
Q453
ANTENNA
TUNER (FM/AM)
FM75Ω
FM ANT TUNER-L
(COAXIAL)
TUNER-R R-CH
AM AM ANT
PLL DO
PLL DI
PLL CLK
PLL CE
TUNED
w w w
HCD-GT22/GT44/GT55
RV801
MIC LEVEL
MIC AMP MIC AMP
IC801 (1/2) IC801 (2/2)
MUTING
Q801
R-CH
PB SWITCH
PB AMP
+
(DECK-A)
IC301
Q301
R-CH
PB SWITCH
(DECK-B)
Q303
R-CH
REC SWITCH REC AMP
Q405 IC401
R-CH
MUTING REC CONTROL
SWITCH SWITCH
Q305, 306 Q407 Q409, 410
AUDIO
DECK-A/B
+9V
SELECT SWITCH,
REC/PB
SELECT SWITCH
Q408
49 46 48 58
31 I-LV23004T-DI
33 O-LV23004T-DO
32 O-LV23004T-CLK
28 O-LC72121-CE
34 I-TUNED
x a o
y
. i
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37 MIX2
INPUT SELECTOR, TONE CONTROL,
ELECTRICAL VOLUME
IC103
2 AUX-L
TONE OUT-L 10
40 CD-L
(GT22/GT44)
(GT55)
PARAMETRIC EQUALIZER
IC102
39 TAPE-L
2 LIN LOUT 9
1 TUNER-L REC OUT-L 3
5 6
Q Q
3 7 6
16 15
41 45 44
SYSTEM CONTROLLER
IC901 (2/4)
u 1 6 3
24 24
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2 4
8 9 9
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: TAPE REC
: AUDIO IN
: MIC
11 VOL IN-L OUT-L 14
(GT44/GT55)
+
BB12 12
R-CH
R-CH
D031
BASS AGC
BB22 13
Q113
3 1 5 1 5 0 8 9 2
4
BUFFER
Q702
+4.1V
M+9V REGULATOR
Q701
BAND-PASS
FILTER
(GT22: E2, E3, E13, E51, MX, AR/GT44: E2, E3, E13, E51, MX, AR/GT55)
Q111, 112
O-MOTOR 85
D213 D211 O-A-SOL 88
67 59
O-B-SOL 87
I-RELL-A 78
I-RELL-B 79
I-TAPE-STAT 60
m
c o
.
2
8 9 9
• Abbreviation
AR : Argentina model
E2 : 120V AC Area in E model
E3 : 240V AC Area in E model
E13 : 220V - 230V AC Area in E model
E51 : Chilean and Peruvian models
MX : Mexican model
OUT
(Page 25)
C
SW OUT
D
(Page 25)
BASS AGC
E (Page 25)
J701
4 9 8 2 9 9
D-LIGHT
SYNC OUT
3
L+R SIGNAL
4
D-LIGHT B+
TAPE MECHANISM
DECK BLOCK
CAPSTAN/REEL
CAMP+
M
MOTOR DRIVE
Q911, 914
TRIGGER PLUNGER
A-SOL
DRIVE (DECK-A)
Q913, 916
TRIGGER PLUNGER
B-SOL
DRIVE (DECK-B)
Q912, 915
A-PHOTO
B-PHOTO
B-REC-F
B-HALF
A-HALF