HCD-RG66T - Sony Audio Service Manual (repair manual). Page 25

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HCD-RG66T
25
25
7-3.
BLOCK  DIAGRAM  – MAIN Section –
STK-MUTE
PROTECTOR
HP MUTE
LINE-MUTE
GEQ DATA
GEQ CLK
FRONT-RELAY
HP-DETECT
79
78
87
88
83
80
81 82
M891
(FAN)
+

+
FRONT SPEAKER
IMPEDANCE
USE 6–16
L
R
PHONES
J631
RY501
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
• R-ch is omitted due to same as L-ch.
CD L-CH
A
(Page 23)
TAPE L-CH
C
(Page 24)
TUNER L-CH
B
(Page 24)
T501
D507
D511
FAN MOTOR
DRIVE
Q891, 892
FAN MOTOR
ON SWITCH
Q831
OVER LOAD
DETECT SWITCH
Q510, 511
PROTECT SWITCH
Q502
OVER LOAD
DETECT SWITCH
Q509
OVER LOAD
DETECT
Q501, 551
DC DETECT
SWITCH
Q507, 508
M
HEADPHONE MUTING
Q812, 862
MUTING CONTROL
SWITCH
Q861
+
+
+
TH701
+
TEMPERATURE
DETECT SWITCH
Q505, 506
D502
MUTING
Q103
MUTING CONTROL
SWITCH
Q504, 505
STANDBY
SWITCH
Q503, 504, 581
R-CH
D841
R-CH
R-CH
18
15
17
16
OUT1
VOLIN1
14
22
21
TOUT1
VOLUME
CONTROL
SOUND
CONTROL
CIRCUIT
INPUT
SELECT
SWITCH
+
R-CH
8
+
R-CH
R-CH
R-CH
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME
IC102
IND1
INB1
INA1
INC1
6
4
3
2
INEX1
SWOUT
BB B1
BB A1
RECB1
DATA
CLOCK
7
5
24
SAOUT
MIC
19
+
CPU
INTERFACE
R-CH
J750
L
R
MD/VIDEO
(AUDIO) IN
R-CH
J601
J401
L
R
GAME
INPUT
REC L-CH
D
(Page 24)
SPEANA
(Page 26)
MIC
AUDIO
VIDEO OUT
VIDEO
J721
MIC AMP
IC722 (1/2)
FEED BACK
SWITCH
Q101
• SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
: TAPE PLAY
: MD/VIDEO (AUDIO) IN
: GAME INPUT (AUDIO)
: GAME INPUT (VIDEO)
: REC
: MIC INPUT
FRONT SPEAKER
PROTECT
RELAY DRIVE
Q512
–2
–1
POWER AMP
IC501
RV722
MIC LEVEL
MIC
CONTROL
Q721
A +10V
MIC AMP
IC722 (2/2)
E
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