Read Sony CMT-NEZ7DAB / HCD-NEZ7 Service Manual online
HCD-NEZ7
15
15
HCD-NEZ7
7-2. BLOCK DIAGRAM – AUDIO Section –
ANTENNA
DAB 75
Ω
AC
DETECT
Q333, 338
R-CH
+
40
INPUT SELECT,
ELECTRICAL VOLUME
IC302
42
28
RECO-L
18
OUT-L
13
CONT
21 CD-L
23 ST-L
2 TC-L
19 AUX-L
REC/PB
SWITCH
Q326 – 332
R-CH
CD
A
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: REC
• R-ch is omitted due to same as L-ch.
: TUNER
J321
AUDIO IN
: AUX IN
: DAB
J500
PHONES
SPEAKER
+
–
–
–
+
R
L
J302
BIAS OSC
T301
REC BIAS
SWITCH
Q347, 348
M +10V
BIAS OSC
Q344
ERASE
HRPE301
(REC/PB/ERASE)
L-CH
R-CH
R-CH
DC
DETECT
Q342, 343
+
POWER
AMP
IC501
TC RELAY
BIAS ON/OFF
91
POWER MONITOR
49
AMP CLK/DATA/LT
44
AMP MUTE
45
AMP POWER
SYSTEM CONTROLLER
IC801 (2/3)
M301
(FAN)
(FAN)
FAN MOTOR
DRIVE
Q316, 317
FAN MOTOR
DRIVE (FOR DAB)
Q312, 314
M
M
+
D307
D320
D313
X801
32.768kHz
11
10
XCOUT
XCIN
15
13
X802
16MHz
XOUT
XIN
TC CONT
TC TRG
HALF
PLAY SW
END SW
LOW-PASS
FILTER
IC702, 703
TUNER SELECT
SWITCH
IC721
S1_DIN
S1_DOUT
AUDIO_RIGHT_OUT
R-CH
AUDIO_LEFT_OUT
DAB TUNER MODULE
66
TC TRG
63
TC MOTOR
94
HALF REC SW
65
TC PLAY
92
TC END SW
24 ST DATA OUT
26 ST DATA IN
25 ST CLK
23 ST CE
22 TUNED IN
27 STEREO IN
28 ST MUTE
21 RDS DATA
26 ST DATA IN
25 ST CLK
23 ST CE
22 TUNED IN
27 STEREO IN
28 ST MUTE
21 RDS DATA
ST DIN
ST DOUT
ST CLK
ST CE
TUNED
STEREO
ST MUTE
RSD DATA
RDS INT
TC TRG
TC CONT
HALF
PLAY SW
END SW
18 RDS INT
39 DAB SELECT SW
38 DAB MUTE
31
DAB DATA OUT
32
DAB DATA IN
DAB SELECT
SWITCCH
Q721
DAB MUTING
SWITCH
Q722
TUNER UNIT
L OUT
R OUT
ST CE
ST CE
R-CH
TUNED
TUNED
STEREO
STEREO
ST MUTE
ST-MUTING
ST DIN
ST DIN
ST DOUT
ST DOUT
ST CLK
ST CLK
RDS DATA
RDS DATA
RDS INT
RDS INT
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75
Ω
COAXIAL
TAPE MECHANISM
DECK BLOCK
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
PLUNGER
DRIVE
Q802, 803
M M
(CAPSTAN/REEL)
(DECK-A)
SOL
10V
MOTOR
10V
PACK
REC
PLAY SW
END SW
+
B
DAB
C
POWER
(Page 14)
(Page 16)
(Page 16)
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