Service manual
HCD-NEZ30
1818
HCD-NEZ30
7-2. BLOCK DIAGRAM – MAIN Section –
AC
DETECT
Q333, 338
R-CH
+
18
INPUT SELECT,
ELECTRICAL VOLUME
IC302
19
28
RECO-L
18
OUT-L
13
CONT
21
CD-L
23
ST-L
2
TC-L
19
AUX-L
REC/PB
SWITCH
Q326 – 329,
Q332, 334, 335
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
J500
PHONES
SPEAKER
+
–
–
+
R
L
J302
TUNER (FM/AM)
L-OUT
R-OUT
CE
CE
R-CH
ST (TUNED)
TUNED
DI
DO
DO
DI
CLK
CLK
CE
TUNED
DO
DI
CLK
BIAS OSC
T301
REC BIAS
SWITCH
Q347, 348
M +10V
BIAS OSC
Q344
ERASE
HRPE301
(REC/PB/ERASE)
TAPE MECHANISM
DECK BLOCK
L-CH
R-CH R-CH
DC
DETECT
Q342, 343
DC
DETECT
Q318 – 320
+
POWER
AMP
IC501
33
I-TU-DO
56
O-TU-CLK
55
O-TU-CE
24
I-TU-SD (TUNED)
57
O-TU-DI
O-TC-REC/PLAY
O-TC-BIAS
36
I-P-MONI
4
O-FUNCTION
IC-DATA
2
STK-ON
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
PLUNGER
DRIVE
Q802, 803
MM
(CAPSTAN/REEL)
(DECK-A)
SOL
10V
MOTOR
10V
PACK
REC
END SW
I-TC-END SW
38
21
I-TC-REC/PLAY SW
22
O-TC-SOL
23
O-TC-MOTOR
I-RMC (SIRCS)
9
SYSTEM CONTROLLER
IC801 (2/2)
D307
D320
(AC IN)
SUB POWER
TRANSFORMER
T901
MAIN POWER
TRANSFORMER
T902
SYS +3.3V
RECT
D911 – 914
D809
D303, 304
D922, 923
D920, 936
AMP B+
TO
POWER AMP
AMP B–
+3.3V
REGULATOR
IC901
+9V
REGULATOR
IC303
+10V
REGULATOR
IC900
D +3.3V
+4V
REGULATOR
IC903
RECT
D916, 917
RECT
D918, 919
RECT
D907 – 910
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75Ω
COAXIAL
VOLTAGE
DETECT
IC803
MAIN POWER
RELAY DRIVE
Q315
D +3.3V
A +9V
M +10V
M +7V
46O-POWER
42I-AC-CUT
54RESET
REMOTE CONTROL
RECEIVER
IC802
LED DRIVE
Q808
D804, 805
(LCD BACK LIGHT)
O-LED-STBY
17
BACK LIGHT
25
D806
X801
32.768kHz
14 13
X1A
X0A
93 92
X802
4.19MHz
XO
XI
LCD801
LIQUID
CRYSTAL
DISPLAY
48 I-RE-VOL
28 I-SW_CD-LID
ROTARY
ENCODER
RV801
VOLUME
STANDBY
S801 – 805,
S808 – 813
(FRONT PANEL KEYS)
S820
(CD LID OPEN/CLOSE DETECT)
I-KEY0/WAKE-UP,
I-KEY_1
41, 37
COM0 – COM1
59 – 62
SEG0 – SEG32
63, 64, 67 – 89, 94 – 100, 1
RESET
SWITCH
Q801
AC DETECT
Q807
RY901
CD +1.8V
+1.8V
REGULATOR
IC202
(EXCEPT E, E51)
(EXCEPT E, E51)
(E, E51)
VOLTAGE
SELECTOR
S901
• Abbreviation
E51 : Chilean and Peruvian models
(Page 17)
Ver. 1.1