SONY HCD-NE5 Diagram
HCD-NE5
SERVICE MANUAL
Ver 1.1 2004.09
• HCD-NE5 is the amplifier, CD player, tape
deck and tuner section in CMT-NE5.
CD Section Base Unit Name BU-K7BD81B
TAPE Section
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism NEW
Optical Pick-up Name KSM-213EDP
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type CMAL5Z220A
Main unit
Amplifier section
North American model:
Continuous RMS power output (reference):
European model:
DIN power output (rated): 16 + 16 W (6 ohms at 1
Continuous RMS power output (reference):
Music power output (reference):
Other models:
The following measured at AC 230 V or AC 120 V,
50/60 Hz
DIN power output (rated): 16 + 16 W
Continuous RMS power output (reference):
Inputs
MD (phono jacks): Sensitivity 450 mV,
Outputs
PHONES: Accepts headphones
SPEAKER: Accepts impedance of
CD player section
Laser Semiconductor laser
Frequency response 20 Hz − 20 kHz
Wavelength 780 − 790 nm
20 + 20 W (6 ohms at
1 kHz, 10% THD)
kHz, DIN)
20 + 20 W (6 ohms at 1
kHz, 10% THD)
33 + 33 W
(6 ohms at 1 kHz, DIN)
20 + 20 W (6 ohms at
1 kHz, 10% THD)
impedance 47 kilohms
with an impedance of
8 ohms or more
6 to 16 ohms.
( =780 nm)
Emission duration:
continuous
SPECIFICATIONS
T
ape deck section
Recording system 4-track 2-channel, stereo
Frequency response 50 − 13,000 Hz (
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 − 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Pan-American model: 530 − 1,710 kHz
European model: 531 − 1,602 kHz
Other models: 530 − 1,710 kHz
Antenna AM loop antenna,
Intermediate frequency 450 kHz
using Sony TYPE I
cassettes
(with the tuning interval
set at 10 kHz)
531 − 1,710 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 10 kHz)
531 − 1,602 kHz
(with the tuning interval
set at 9 kHz)
external antenna terminal
3 dB),
General
Power requirements
North American model: 120 V AC, 60 Hz
Mexican model: 120 V AC, 60 Hz
European model: 230 V AC, 50/60 Hz
Australian model: 230 − 240 V AC,
Korean model: 220 V AC, 60 Hz
Taiwanese model: 120 V AC, 50/60 Hz
Other models: 110 − 120 V or
Power consumption
North American model: 50 W
Mexican model: 50 W
European model: 57 W
Korean model: 58 W
Taiwanese model: 50 W
Other models: 65 W
Dimensions (w/h/d) Approx. 164 × 230.5 × 263
Mass
Supplied accessories Remote Commander (1)
Design and specifications are subject to change
without notice.
50/60 Hz
220 − 240 V
AC, 50/60 Hz
Adjustable with voltage
selector
0.3 W (in Power Saving
Mode)
mm incl. projecting parts
and controls
Approx. 3.9 kg
R6 (size AA) batteries (2)
AM loop antenna (1)
FM lead antenna (1)
9-877-623-02 Sony Corporation
2004I05-1 Personal Audio Company
© 2004.09 Published by Sony Engineering Corporation
COMPACT DISC DECK RECEIVER
HCD-NE5
r
Notes on chip component replacement
•Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation exposure.
The following caution label is located inside the unit.
This appliance is classified
CLASS 1 LASER PRODUCT
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
as a CLASS 1 LASER
product.
This label is located on the
rear exterior.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT -540A. Follo w the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)
To Exposed Metal
Parts on Set
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 ˚C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIA GRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
AC
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
Ω
Earth Ground
voltmete
(0.75 V)
2
TABLE OF CONTENTS
1. SERVICING NOTES................................................ 4
2. GENERAL
Location of Controls ....................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Rear Cabinet .................................................................... 7
3-3. Top Panel Assy ................................................................ 8
3-4. Front Panel Assy ............................................................. 8
3-5. Base Unit (BU-K7BD81B) ............................................. 9
3-6. Mechanical Deck ............................................................. 9
3-7. MAIN Board ................................................................... 10
3-8. AMP Board ..................................................................... 10
4. TEST MODE.............................................................. 11
5. ELECTRICAL CHECK .......................................... 11
6. DIAGRAMS
6-1. Block Diagram – CD SERVO Section – ....................... 13
6-2. Block Diagram – MAIN Section – ................................ 14
6-3. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 15
6-4. Printed Wiring Board – CD Board – ............................. 16
6-5. Schematic Diagram – CD Board – ................................ 17
6-6. Printed Wiring Board – MAIN Board – ........................ 19
6-7. Schematic Diagram – MAIN Board (1/2) – .................. 20
6-8. Schematic Diagram – MAIN Board (2/2) – .................. 21
6-9. Printed Wiring Board – AMP Section – ........................ 22
6-10. Schematic Dia gram – AMP Section – ........................... 23
6-11. Printed Wiring Board – CONTROL Board –................ 24
6-12. Schematic Dia gram – CONTROL Board – ................... 25
6-13. Printed Wiring Board – POWER Board –..................... 26
6-14. Schematic Dia gram – POWER Board – ........................ 27
HCD-NE5
7. EXPLODED VIEWS
7-1. Panel Section ................................................................... 33
7-2. Front Panel Assy-1 .......................................................... 34
7-3. Front Panel Assy-2 .......................................................... 35
7-4. Top Panel Assy ................................................................ 36
8. ELECTRICAL PARTS LIST ............................... 37
3
HCD-NE5
SECTION 1
SER VICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objectiv e lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
• MODEL IDENTIFICATION
– Rear Cabinet –
Power Voltage Indication
MODEL Pow er Voltage Incdication
Canadian and
Mexican models
AEP and UK models AC: 230 V - 50/60 Hz 57 W
Australian model AC: 230 – 240 - 50/60 Hz 65 W
Korean model AC: 220 V - 60 Hz 58 W
Taiwan model AC: 120 V 50/60 Hz 50 W
Other models
AC: 120 V 60 Hz 50 W
AC: 110 – 120/
220 – 240 V 50/60 Hz 65 W
NOTE ON LEADING THE WIRE (FLAT TYPE)
• In order to separate wire (flat type) from no shield portion of TC wire, stick filament tapes, as shown in a figure.
TC wire (no shield portion)
main board
filament tape
head wire
wire (flat type)
4
SERVICE POSITION
– CD board –
HCD-NE5
CD board
– TCM block –
– AMP board –
TCM block
AMP board
5
HCD-NE5
• LOCATION OF CONTROLS
Main unit
ALPHABETICAL ORDER
A - O
ALBUM +/− 7 (10, 11)
BASS/TREBLE 8 (17)
Cassette compartment qf
CD SYNCHRO qg (16)
DISPLAY 0 (14, 20)
Display window 5
DSGX 9 (17)
BUTTON DESCRIPTIONS
?/1 (power) 1
.m/M> (skip back/
skip forward, rewind/fast
forward) 4
x (stop) 3
z REC PAUSE/START qh
CD/NX (play/pause) ql
TAPE/N (play) w;
Z PUSH OPEN/CLOSE (CD
open/close) 6
Z PUSH OPEN (tape open/close)
qd
P - Z
PHONES jack qk
PLAY MODE qj
Remote sensor 2
TUNER/BAND qs
TUNING +/− 4
TUNING MODE qj
VOLUME qa
SECTION 2
GENERAL
This section is extracted from
instruction manual.
12345 6
w;
ql
qk
qj
7
8
9
0
qa
qs
qd
qf
qgqh
Remote control
ALPHABETICAL ORDER
A - O P - Z
ALBUM +/− qa
CD qh
CLEAR qd
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
DISPLAY ql
ENTER 9
EQ qs
FM MODE 4
FUNCTION 6
BUTTON DESCRIPTIONS
?/1 (power) 1
m/M (rewind/fast forward)
7
./> (go back/go forward)
qf
x (stop) 8
X (pause) 8
N (play) 8
+/− (tuning) qf
PLAY MODE qk
REPEAT 4
SLEEP w;
TAPE qg
TUNER/BAND 5
TUNER MEMORY qj
TUNING MODE qk
VOLUME +/− 0
Setting the clock
ql
qk
qj
qh
qg
qf
qd
qs
qa
w; 1
2
3
4
5
6
7
8
9
0
Use buttons on the remote for the operation.
1
Press ?/1 to turn on the system.
2
Press CLOCK/TIMER SET.
3
Press ./> repeatedly to set the
hour.
4
Press ENTER.
5
Press ./> repeatedly to set the
minute.
6
Press ENTER.
The clock starts working.
6
To adjust the clock
1
Press CLOCK/TIMER SET.
2
Press ./> until CLOCK appears,
then press ENTER.
3
Do the same procedures as step 3 to 6
above.
Note
The clock is not displayed in Power Saving Mode.
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SET
3-2. REAR CABINET
(Page 7)
3-3. TOP PANEL ASSY
(Page 8)
HCD-NE5
SECTION 3
DISASSEMBLY
3-4. FRONT PANEL ASSY
(Page 8)
3-6. MECHANICAL DECK
(Page 9)
3-2. REAR CABINET
7
connector
(CN310)
3-5. BASE UNIT
(BU-K7BD81B)
(Page 9)
3-7. MAIN BOARD
(Page 10)
1
four screws
(BTP3
×
12)
3-8. AMP BOARD
(Page 10)
4
five screws
(BVTP3
×
10)
3
two screws
(BVTP3
8
×
10)
rear cabinet
6
2
four screws
(BTP3
5
two screws
(BVTP3
×
12)
×
10)
7
HCD-NE5
3-3. TOP PANEL ASSY
6
top panel assy
5
connector
(S820)
2
claw
3-4. FRONT PANEL ASSY
3
q;
wire (flat type) (15 core)
5
connector
(CN301)
1
4
wire (flat type) (27 core)
(CN305)
claw
2
wire (flat type) (16 core)
(CN303)
3
connector
(CN501B)
4
connector
(CN501)
1
wire (flat type) (24 core)
(CN302)
7
9
6
two screws
(BVTP3 × 10)
8
qa
flont panel assy
8
3-5. BASE UNIT (BU-K7BD81B)
7
two washers
6
two screws
8
base unit
(BU-K7BD81B)
5
two washers
4
two screws
HCD-NE5
2
CD cover
3-6. MECHANICAL DECK
1
three screws
(BTP2.6
3
wire (flat type) (27core)
(CN201)
×
8)
1
2
four screws
(BVTP3
harness
×
10)
4
mechanical deck
3
plate (shield cassette)
9
HCD-NE5
3-7. MAIN BOARD
4
two screws
(BVTP3
7
8
main board
×
10)
tuner (FM/AM)
5
6
Remove the solder.
1
connector (CN307)
2
connector (CN308)
3-8. AMP BOARD
4
AMP board
2
connector
(CN308)
3
connector (CN903)
1
connector
(CN307)
10
3
two screws
(BVTP3
×
14)
SECTION 4
+
–
CD board
TP (RFACO)
TP (VC)
oscilloscope
(DC range)
TEST MODE
HCD-NE5
SECTION 5
ELECTRICAL CHECK
COLD RESET
* The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when returning the set to the customer.
Procedure:
1. Press the I/1 button to turn the power on.
2. While pressing the x button, press the I/1 button and turn
the [VOLUME] knob in the counter-clock wise.
3. The message “RESET” is displayed and the set is reset.
PANEL TEST
* All segments of liquid crystal display are tested, and the ver-
sion and released date of the micro computer are displayed.
Procedure:
1. Press the I/1 button to turn the power on.
2. While pressing the [DISPLAY] button, press the I/1 button
and turn the [VOLUME] knob in the counter-clock wise.
Then all segments of liquid crystal display are turned on.
3. Press the [DSGX] button, the version and released date of the
micro computer are displayed.
example of display:
0116 V202
Version of micro computer
(In this case, version 202)
released date of micro computer
(In this case, released of January 16)
4. Press the [BASS/TREBLE] button, the model name and
distination are displayed.
example of display:
NE5 NA
Note:
1. CD Block is basically constructed to operate without
adjustment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
5. Check the focus bias check when optical block is replaced.
FOCUS BIAS CHECK
Procedure :
1. Connect the oscilloscope to TP (RF ACO) and TP (VC) on the
CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the [CD ] button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
NX
1.1
0.2 Vp-p
distination
(In this case, North-American model)
model name
(In this case, HCD-NE5)
5. To exit from this mode, perform the “COLD RESET”.
TUNER STEP CHANGE-OVER
* Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
Procedure:
1. Set the FUNCTION to AM, and press the I/1 button to turn
the power off.
2. While depressing the [TUNING + ] button, press the
I/1 button.
3. The message “9K STEP” or “10K STEP” is displayed on the
liquid crystal display, and thus the channel step is changed
over.
M >
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
Checking Location:
– CD BOARD (Conductor Side) –
TP (VC)
TP
(RFACO)
11
HCD-NE5
MEMO
12
SECTION 6
DIAGRAMS
6-1. BLOCK DIAGRAM – CD SERVO Section –
HCD-NE5
DETECTOR
A
B
C
D
F
E
OPTICAL PICK-UP
BLOCK
(KSM-213EDP)
LASER DIODE
PD
I-V AMP
LD
M101
(SPINDLE)
D +3.3V
M
AUTOMATIC
POWER
CONTROL
Q10
CH4OUTF
16
CH4OUTR
15
A
26
B
27
C
28
D
29
F
20
E
19
LD
36
MOTOR/COIL DRIVE
IC251
MOTOR
DRIVE
CH4IN
SUMMING
AMP
FOCUS
ERROR
TRACKING
ERROR AMP
APC LD
AMP
24
RF
AMP
FILTER
CD DSP
IC101 (1/2)
AC_
SUM
34
FEO
24
TEO
22
PD
37
OPIN+
OPOUT
27
EQ_
IN
RFAC
35
VCA
2
RFACO
EQ
41
42
45
46
RFACI
ASYI
ASYO
DIGITAL
CLV
PROCESSOR
MDP
6
ASYMMETRY
CORRECTOR
100
XRST
51 53
FILI
PCO
FILO
CLTV
DIGITAL PLL
TO SERVO AUTO
SEQUENCER
CPU INTERFACE
DATA
CLOCK
XLAT
95
97 9
XLT
CD-CLK
CD DATA
1125052
XPCK
DEMODULATOR
SUBCODE
PROCESSOR
SQSO
EXCK
SCOR
SENS
SBSO
96 97
98 99115107102 105 104 110 111
SCOR
MI-DIO-I
MI-DIO-O
MP3-ACK
MP3-REQ
MP3-STB
MP3-RST
SENS
EFM
SQCK
MI-CK
MI-CS
MI-LP
32K
RAM
INTERNAL BUS
WFCK
XUGF
GFS
113
99
98
100
4
5
1
3
6
2
CORRECTOR
EMPH
68
MIDIO
6
MICK
7
MICS
4
MILP
5
MIACK
8
PO11/BUCK/AD14
36
STANDBY
3
RESET
2
ERROR
MP3 DECODER
IC301
D/A
DIGITAL
INTERFACE
117 93
C4M
SELECTOR
LRCK
63 66 65
16
19
18 14
SBSY/BCKIB
SFSY/LRCKIB
D/A
CONVERTER
BCK
PCMD
15
SDI0
BCKIA
LRCKIA
XTSL
CLOCK
GENERATOR
LRCKI
BCKI
62 60 61
PCMDI
1196 10
SDO0
XTAO
XTAI
XTACN
AOUT1
AOUT2
77
78
95
81
86
R-CH
X171
16.9344MHz
CD
(Page 14)
A
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
M102
(SLED)
21 23
CD DSP
IC101 (2/2)
CH3OUTF
17
M
18
14
13
12
11
CH3OUTR
CH1OUTF
CH1OUTR
CH2OUTF
CH2OUTR
MOTOR
DRIVE
DRIVE
DRIVE
COIL
COIL
MUTE
20
CH3FIN
CH3RIN
CH1FIN
CH1RIN
CH2FIN
CH2RIN
23
21
SFDR
9
SRDR
10
4
5
6
7
TFDR
11
TRDR
12
FFDR
13
FRDR
14
PWM GENERATOR
FOCUS/TRACKING/SLED
S101
(LIMIT)
FEI
TEI
A/D
CONVERTER
FOCUS/
TRACKING/SLED
SERVO DSP
SSTP
7
MIRR,
DFCT, FOK
DETECTOR
SERVO
INTERFACE
SERVO AUTO
SEQUENCER
TO CPU INTERFACE
FOK
MIRR
DFCT
COUT
SCLK
SYSTEM CONTROLLER
IC801 (1/2)
3
1
2
119
108
X-RST
8
XTCN
7
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY
1313
HCD-NE5
6-2. BLOCK DIAGRAM – MAIN Section –
J303
L
MD
(Page 13)
ANTENNA
A
FM 75Ω
COAXIAL
AM
R
CD
FM/AM TUNER PACK
FM ANT
TU LCH
TU RCH
ANT GND
AM ANT
ANT GND
TU DI
TU DO
TU CL
TU CE
TUNED
STEREO
MUTE
RDS DATA
RDS CLOCK
(AEP, UK)
R-CH
STEREO
TU-MUTING
RDS DATA
RDS CLOCK
R-CH
CLK
TUNED
AUX-L
19
18
OUT-L
CD-L
21
TUNER-L
23
DO
DI
CE
INPUT SELECT,
ELECTRICAL VOLUME
IC302
R-CH
POWER
AMP
IC501
J301
PHONES
+
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
+
–
+
–
L
R
J302
SPEAKER
IMPEDANCE
USE 6 – 16Ω
: CD PLAY
: TAPE PLAY
: REC
: AUX IN
+
M301
(FAN)
MM
2
TAPE-L
REC-O-L
CONT
13
28
D319
D388
FAN MOTOR
DRIVE
Q349, 350
HRPE301
(REC/PB/ERASE)
TAPE MECHANISM
DECK BLOCK
MOTOR 9V
MM
(CAPSTAN/REEL)
(DECK-A)
SOL 9V
PACK
R RFC
PLAY SW
FWD SW
L-CH
R-CH R-CH
ERASE
CAPSTAN/REEL
MOTOR DRIVE
Q804, 805
PLUNGER
DRIVE
Q802, 803
FL801
FLUORESCENT
INDICATOR TUBE
REMOTE CONTROL
RECEIVER
IC802
REC/PB
SWITCH
Q326 – 332
78
TA MO
81
TA SOL
24
TA-SW
TA PLAY SW
68
TA END SW
67
S1 – 16
52 – 60
43 – 45, 47 – 50,
G1 – G12
31 – 42
RMC_IN
29
DO
76
75
TU DO
DI
CE
CLK
74
73
TU DI
TU CLOCK
TA LED
93
LED DRIVE
Q811
D816
TAPE
N
BIAS OSC
T301
TUNED
STEREO
71
70
TU CE
TU TUNED
(AEP, UK)
RDS DATA
RDS CLOCK
25
26
RDS-DATA
TU STEREO
TU LED
92
LED DRIVE
Q810
D815
TUNER
BAND
BIAS OSC
Q344, 345
RDS-CLK
REC BIAS
SWITCH
Q346 – 348
80
79
TA RP
CD LED
91
LED DRIVE
Q809
D814
CD
NX
TA BIAS
LED DRIVE
(STANDBY)
B +10V
28
F-DATA
SYSTEM CONTROLLER
IC801 (2/2)
ST-BY LED
87
Q808
D811
S801 – 815
(FRONT PANEL KEYS)
X801
32.768kHz
13 12
O-XT2
(CD LID OPEN/CLOSE DETECT)
VOLUME
X802
10MHz
16 15
I-XT1
XOUT
S820
ROTARY
ENCODER
RV801
82
XIN
AMP-STBY
66 CD OPEN
22 VOL_ENCODER
83
AMP MUTE
KEY0,
KEY1
27, 20
84
AU MUTE
DC
DETECT
Q342, 343
D307
+
AC
DETECT
Q333, 338
18
I-POWER_MONITOR
CD +1.5V
94MD LED
23I_POWER_DOWN
11RESET
85POWER ON
+1.5V
REGULATOR
IC303
D +3.3V
RESET SWITCH
Q801
M +7V
SYS +3.3V
VM +10V
SYS +3.1V
SYS +3.2V
+3.3V
REGULATOR
Q317
D809
D810
VOLTAGE
DETECT
IC803
MAIN POWER
TRANSFORMER
T902
D920, 921
TO
POWER AMP
TO
FLUORESCENT
INDICATOR TUBE
D312, 313D320
B+ SWITCH
Q319, 320
+3.3V
REGULATOR
D304
AMP B+
AMP B–
AC 3.6V
FL –30V
REGULATOR
+3.9V
REGULATOR
Q312 – 314
+10V
IC305
RECT
D918, 919
RECT
D916, 917
–30V
REGULATOR
Q334 – 337
RECT
D913, 914
RECT
D907 – 910
D922, 923
D915
RECT
SUB POWER
TRANSFORMER
T901
(EXCEPT E, E51, SP)
(E, E51, SP)
VOLTAGE
SELECTOR
S901
(EXCEPT E, E51, SP)
MAIN POWER
RELAY DRIVE
Q311, 315
RY901
(AC IN)
1414
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