Read Sony CMT-NE3 / HCD-NE3 Service Manual online
HCD-NE3
16
16
6-2.
BLOCK DIAGRAM – MAIN Section –
AC
DETECT
Q333, 338
R-CH
+
95
INPUT SELECT,
ELECTRICAL VOLUME
IC302
94
28
REC-O-L
18
OUT-L
13
CONT
21 CD-L
23 TU-L
2 TA-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
J303
R
MD
L
: AUX IN
J301
PHONES
SPEAKER
IMPEDANCE
USE 6 – 16
Ω
+
–
–
–
+
R
L
J302
FM/AM TUNER PACK
TU-LCH
TU-RCH
TU-CE
CE
R-CH
TUNED
TUNED
STEREO
STEREO
MUTE
TU-MUTING
TU-DI
DO
TU-DO
DI
TU-CL
CLK
CE
TUNED
STEREO
DO
DI
CLK
BIAS OSC
T301
REC BIAS
SWITCH
Q346 – 348
B +10V
BIAS OSC
Q344, 345
ERASE
HRPE301
(REC/PB/ERASE)
TAPE MECHANISM
DECK BLOCK
L-CH
R-CH
R-CH
DC
DETECT
Q342, 343
+
POWER
AMP
IC501
30
TU DI
34
TU CLK
35
TU CE
36
TU TUNED
37
TU STEREO
32
TU DO
TU-MUTING
33
TU MUTE
TA REC/PLAY
TA BIAS
18
I POWER MONITOR
28
F DATA
99
AMP MUTE
98
AMP STBY
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
PLUNGER
DRIVE
Q802, 803
M M
(CAPSTAN/REEL)
(DECK-A)
SOL 9V
MOTOR 9V
PACK
REC
PLAY SW
FWD SW
TA PLAY SW
TA END SW
TA END SW
24
91
92
TA-SW
96 TA SOL
93 TA MOTOR
RMC
29
SYSTEM CONTROLLER
IC801 (2/2)
(EXCEPT E, E51, EA, SP)
(EXCEPT E, E51, EA, SP)
(E, E51, EA, SP)
D307
(AC IN)
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
T902
SYS +3.2V
SYS +3.1V
RECT
D913, 914
D810
D809
D923, 924
D922
D920, 921
AMP B+
TO
POWER AMP
AMP B–
VOLTAGE
SELECTOR
S901
+10V
REGULATOR
IC305
VM +10V
+3.9V
REGULATOR
Q312 – 314
RECT
D916, 917
RECT
D918, 919
RECT
D907 – 910
SYS +3.3V
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75
Ω
COAXIAL
VOLTAGE
DETECT
IC803
MAIN POWER
RELAY DRIVE
RELAY DRIVE
Q311, 315
+3.3V
REGULATOR
Q339
+3.3V
REGULATOR
Q317
M +7V
D +3.3V
B+ SWITCH
Q319, 320
2
CD ON
1
PWR ON
23
I POWER DOWN
11
RESET
REMOTE CONTROL
RECEIVER
IC802
ST/BY
39
LED DRIVE
Q806
D806
(STANDBY)
BACK LIGHT ON
97
LED DRIVE
Q808
D701 – 703
(LCD BACK LIGHT)
X801
32.768kHz
13
12
XT2
XT1
16
15
X802
10MHz
CF2
CF1
FL801
FLUORESCENT
INDICATOR TUBE
SEG1 – 33
LCD COM0 – 3
83 – 86
79 – 56,
53 – 45
22 VOL ENCODER
4 CD OPEN
ROTARY
ENCODER
RV801
VOLUME
S801 – 813
(FRONT PANEL KEYS)
S820
(CD LID OPEN/CLOSE DETECT)
KEY0,
KEY1
KEY1
25, 26
RESET SWITCH
Q801
RY901
+7V
REGULATOR
IC306
(Page 15)
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