Read Sony HCD-RG66T Service Manual online
HCD-RG66T
24
24
7-2.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
FM ANT
ANT GND
AM ANT
ANT GND
ST-DIN
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
L-CH
R-CH
ST-DOUT
TUNER UNIT
FM 75
Ω
AM
R-CH
25
ST-DIN
23
ST-DOUT
27
ST-CLK
22
ST-CE
21
ST-MUTE
DI
DO
CLK
CE
MUTING
3
TUNED
2
STEREO
TUNED
STEREO
R-CH
L-CH
R-CH
L-CH
R-CH
R-CH
HP901
(PB)
HRPE901
(REC/PB/ERASE)
1
3
2
4
R-CH
R-CH
REC/PB SWITCHING
IC302
R-CH
BIAS OSC
T301
BIAS
TRAP
REC BIAS
SWITCH
Q301, 307, 310
TC +10V
BIAS OSC
Q302, 303
TRIGGER
PLUNGER DRIVE
(DECK B)
Q391, 392
PM902
TRIGGER PLUNGER
(DECK B)
51
A-TRIG
TRIGGER
PLUNGER DRIVE
(DECK A)
Q393, 394
PM901
TRIGGER PLUNGER
(DECK A)
52
B-TRIG
90
B-SHUT
89
A-SHUT
34
32
BIN1
AIN1
15 13 12
14
28
27
EQOUT1
26
PB-OUT1
TAI1
MUTE
DECK A/B SELECT SWITCH,
PB EQ AMP
IC301 (1/2)
R-CH
23
REC-
OUT1
OUT1
REC-IN1
ALC1
REC EQ AMP, ALC
IC301 (2/2)
21
R-CH
R-CH
68
ALC
C
(Page 25)
TAPE
L-CH
B
(Page 25)
TUNER
L-CH
D
(Page 25)
REC
L-CH
55 CAPM-CNT1
54 CAPM-H/L
65 BIAS
CAPSTAN
MOTOR DRIVE
Q396, 397
M
M
M901
(CAPSTAN)
57
B-PLAY
56
A-PLAY
11
ALC ON/OFF
S1002
(DECK B PLAY)
S1001
(DECK A PLAY)
70
A-HALF
S1003
(DECK A HALF)
91
B-HALF
S1006
(DECK B HALF)
S1009
(DECK B REC)
S1005
(DECK A REC)
D +3.3V
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (2/4)
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TUNER (FM/AM)
: TAPE PLAY (DECK A)
: REC
: TAPE PLAY (DECK B)
ROTATION
DETECT SENSOR
(DECK A)
IC1001
ROTATION
DETECT SENSOR
(DECK B)
IC1002
DO
CE
MUTING
TUNED
STEREO
DI
CLK
REC BIAS (L)
(DECK B)
RV304
REC BIAS (R)
(DECK B)
RV354
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
Q395
TAPE SPEED
(HIGH)
RV1001
TAPE SPEED
(NORMAL)
RV1002
A/B
NORMAL/HIGH SPEED
MUTE ON/OFF
REC MUTE ON/OFF
A/B
NOR/HIGH
REC MUTE
58
53
61 67 66
A/B
NOR/HIGH
REC-MUTE
PB-A/B
EQ-H/N
TC-MUTE
AMS-IN
REC MUTE
EQ
ALC
REC LEVEL (L)
(DECK B)
RV301
69
TC-RELAY
+
MUTING
Q306
MUTING CONTROL
SWITCH
Q389
BUFFER
Q390, 398, 399
LOW-PASS
FILTER
IC303
24
ANTENNA
REC/PB
SWITCHING
Q304, 305
D +3.3V
D +3.3V
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