Sony CFD-S47 - Cd Radio Cassette-corder User manual

– 1 –
Model Name Using Similar Mechanism NEW
CD CD Loading Mechanism Type FLM-S47-149
Section CD Mechanism Type KSM-213CCP
Optical Pick-up Name KSS-213C
TC Model Name Using Similar Mechanism CFD-V10
Section Tape Transport Mechanism Type MF-V10-117
SERVICE MANUAL
US Model
E Model
CFD-S47
CD RADIO CASSETTE-CORDER
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
SPECIFICATIONS
– Continued on next page –
Radio section
Frequency range
FM US, E model 87.6 - 108 MHz
Singapore model 87.6 - 107 MHz
AM US, E model 530 - 1,710 kHz
Singapore model 531 - 1,602 kHz
IF FM: 10.7 MHz
AM: 450 kHz
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 150 sec. with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 10,000 Hz
MICROFILM
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 6-ohm loads, both channels driven
from 100 - 10,000 Hz: rated 3.5 W per
channel-minimum RMS power, with no more
than 10% total harmonic distortion in AC
operation.
Ver 1.0 1998. 12

– 2 –
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE
WITH MARK !ON THE SCHEMATIC DIAGRAMS 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.
General
Speaker
Full range: 8 cm (3 1/4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Maximum power output
3.5 W + 3.5 W (US, E model)
4.5 W + 4.5 W (Singapore model)
Power requirements
For CD radio cassette-corder:
120 VAC, 60 Hz (US, E model)
230 VAC, 50 Hz (Singapore model)
9 V DC, 6 R20 (size D) batteries
For memory back-up:
6 V DC, 4 R6 (size AA) batteries
For remote control:
3 V DC, 2 R6 (sizeAA) batteries
Power consumption
AC 25 W
Battery life
For CD radio cassette-corder:
FM recording
Sony R20P: approx. 3.5 h
Sony alkaline LR20: approx. 10 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 5 h
CD playback
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 4 h
Dimensions
Approx. 420 ×177 ×281 mm (w/h/d)
(16 5/8 ×7 ×11 1/8 inches) (incl. projecting parts)
MassApprox. 5.1 kg (11 lb. 4 oz.) (incl. batteries)
Supplied accessories
AC power cord (1)
Remote control RMT-CS47A (1)
Design and specifications are subject to change without
notice.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
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.
Notes on Chip Component Replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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 objective lens.

– 3 –
TABLE OF CONTENTS
1. GENERAL
Playing a CD ........................................................................... 4
Listening to the radio............................................................... 4
Playing a tape ..........................................................................5
Recording on a tape ................................................................. 5
2. DISASSEMBLY
2-1. Cabinet (Front) Assy ........................................................... 6
2-2. Power Board ........................................................................ 6
2-3. Cabinet (Upper) Assy .......................................................... 7
2-4. CD Mechanism Block ......................................................... 7
2-5. Tuner Board......................................................................... 8
2-6. SW (L) Board, SW (R) Board ............................................. 8
2-7. Main Board ......................................................................... 9
2-8. SW (Top) Board, Record/Playback Switch Board,
Headphone Board ................................................................ 9
2-9. Cassette Mechanism Block ............................................... 10
2-10. Plate Assy, Chuck .............................................................. 10
2-11. Tray ................................................................................... 11
2-12. Loading Board................................................................... 11
2-13. CD Board .......................................................................... 12
2-14. CD Mechanism Block ....................................................... 12
3. MECHANICAL ADJUSTMENTS ............................... 13
4. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 13
Tuner Section......................................................................... 14
CD Section ............................................................................ 15
5. DIAGRAMS
5-1. IC Pin Description ............................................................. 16
5-2. Circuit Boards Location .................................................... 18
5-3. Block Diagram – CD Section –......................................... 19
5-4. Block Diagram – Main Section – ...................................... 21
5-5. Printed Wiring Board – Tuner Section – ........................... 24
5-6. Schematic Diagram – Tuner Section –.............................. 25
5-7. Printed Wiring Boards – CD Section – ............................. 27
5-8. Schematic Diagram – CD Section –.................................. 29
5-9. Printed Wiring Boards – Main Section – .......................... 32
5-10. Schematic Diagram – Main Section (1/2) – ...................... 35
5-11. Schematic Diagram – Main Section (2/2) – ......................38
6. EXPLODEDVIEWS
6-1. Cabinet (Front) Section ..................................................... 44
6-2. Cabinet (Upper) Section.................................................... 45
6-3. CD Chassis Section ........................................................... 46
6-4. Tape Mechanism Deck Section-1...................................... 47
6-5. Tape Mechanism Deck Section-2...................................... 48
6-6. Optical Pick-up Section .................................................... 49
7. ELECTRICAL PARTS LIST......................................... 50
To Exposed Metal
Parts on Set
0.15
µ F1.5k
Ω
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Checktheantenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts forAC leakage. Check leakage as
described below.
LEAKAGETEST
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. Follow 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 aVOM
or battery-operatedAC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage 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 2V AC range are suitable. (See Fig.A)

– 4 –
SECTION 1
GENERAL This section is extracted
from instruction manual.

– 5 –

– 6 –
• The equipment can be removed using the following procedure.
2-2. POWER BOARD
SECTION 2
DISASSEMBLY
1 antenna, telescopic
handle
5 P 3x14
6 P 3x14
4 lid, battery case
7 P 3x14
8 P 3x14
3 P 3x14
9 CNP302
0 cabinet (front) assy
2 Pull the handle up
approx. 30˚.
1 CNP901
2 BVTP 3x10
cabinet (rear) assy
3 BVTP 3x10
4 BVTP 3x10
5 POWER board
Note : Follow the disassembly procedure in the numerical order given.
2-1. CABINET (FRONT) ASSY
Set Cabinet (front)
assy Cabinet (upper) assy CD mechanism block SW (L) board, SW (R) board
Plate assy,
chuck Tray Loading board
Tuner board
Power board CD
board
Main
board
CD
mechanism
block
SW (TOP) board,
Record/Playback switch board,
Headphone board
Cassette mechanism
block

– 7 –
2-3. CABINET (UPPER) ASSY
2-4. CD MECHANISM BLOCK
1 CNP1
2 CNP307
3 CNP702
5 CNP501
4 BVTP 3x1
0
6 cabinet (upper) assy
1 BVTP 3x10
2 CD mechanism block

– 8 –
2-6. SW (L) BOARD, SW (R) BOARD
2-5. TUNER BOARD
1 BVTP 2.6x8
3 BVTP 2.6x
8
2 SW (L) board
4 SW (R) board
1 BVTP 3x8
2 TUNER board

– 9 –
2-7. MAIN BOARD
2-8. SW (TOP) BOARD, RECORD/PLAYBACK SWITCH BOARD, HEADPHONE BOARD
1 CNP30
6
2 CNP301
3 CNP30
5
5 CNP303
4 CNP503
6 BVTP 3x10
7 BVTP 3x10
8 BVTP 3x10
9 MAIN board
1 BVTP 3x10
3 BVTP 2.6x8
4 BVTP 2.6x8
6 BVTP 3x10
8 BVTP 3x10
9 chassis (REC)
0 BVTP 2.6x8
!¡ H/P SUB board
!™ HEADPHONE board
2 chassis (PWB)
5 SW (TOP) board
7 RECORD/PLAYBACK
SWITCH board

– 10 –
2-9. CASSETTE MECHANISM BLOCK
2-10. PLATE ASSY, CHUCK
1 BVTP 3x10
2 cassette mechanism bloc
k
1 P 2.6x8
2 plate assy, chuck

– 11 –
2-11. TRAY
2-12. LOADING BOARD
2 claw
3 claw
5 tray
6 lid (CD)
4
1
5 B 2x3
6 claw
7 claw
8 LOADING board
1 belt
2 claw
3 pulley
4 connector

– 12 –
2-13. CD BOARD
2-14. CD MECHANISM BLOCK
2 P 2x6
3 CNP701
4 CD board
1 Removal the
four solders.
!¡ CD mechanism bloc
k
CD mechanism block
0 arm
1 PWH 2.6x10
4 PWH 2.6x10
8 PWH 2.6x10
5
7
6
9
2 gear, drive
3 gear
arm
chassis
chassis

– 13 –
phones jack
set
32
Ω
test tape
WS-48A
(3 kHz, 0 dB)
digital frequency
counter
TAPE SECTION 0 dB = 0.775V
• Standard Output Level
Output terminal HP OUT
load impedance 32 Ω
output signal level 0.25 V (–10 dB)
• Test Tape
Type Signal Used for
WS-48A 3 kHz, 0 dB tape speed adjustment
Tape Speed Adjustment
Procedure:
Mode: playback
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagne-
tizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode Torque meter Meter reading
FWD CQ-102C 30 – 70 g • cm
(0.42 – 0.97 oz • inch)
FWD CQ-102C 1.5 – 5.5 g • cm
Back Tension (0.021 – 0.076 oz • inch)
FF CQ-201B more than 60 g • cm
(more than 0.83 oz • inch)
REW CQ-201B more than 60 g • cm
(more than 0.83 oz • inch)
Tape Tension Measurement
Mode Tension meter Meter Reading
FWD CQ-403A more than 100 g
(more than 3.53 oz)
SECTION 4
ELECTRICAL ADJUSTMENTS
SECTION 3
MECHANICAL ADJUSTMENTS
Adjust so that the value on the frequency counter is 3 kHz.
Specification Value:
Digital frequency counter
2,985 to 3,015 Hz
Adjust so that the frequency at the beginning and that at the end of
tape winding are between 2,955 to 3,045 Hz.
Adjustment Location:
Tape speed adjustment
control inside motor

– 14 –
FM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 87.5 MHz 108 MHz
Reading on Digital voltmeter 1.7 ±0.4 V 4.1 ±0.1V
Adjustment Part <confirmation> L2
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L1 CT1
87.5 MHz 108 MHz
AM FREQUENCY COVERAGE
ADJUSTMENT
Frequency Display 530 kHz 1,710 kHz
Reading on Digital voltmeter 0.9 + 0.7 V 4.8 + 1.2V
– 0.5V – 0.6 V
Adjustment Part <confirmation> <confirmation>
AMTRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 CT3
620 kHz 1,400 kHz
• For AM adjustment, fix the ferrite-rod antenna (L3) as shown
below and then perform tracking adjustment at L4 and CT3.
Lastly check the voltage.
digital
voltmeter
100 k
Ω
TP (VT)
(JW18)
phones jack
set
32
Ω
level meter
(range: 0.5–5 V ac
)
Put the lead-wire
antenna close to
the supplied AM
loop antenna.
AM RF signal
generator
TP (FM ANT)
FM RF signal
generator
0.01
µ F
set
TUNER SECTION 0 dB = 1 µV
• FM Section
Setting:
BAND switch: FM
75 kHz frequency
deviation by 1 kHz signal
output level : as low as possible
• AM Section
Setting:
BAND switch: AM
30% amplitude
modulation by
400 Hz signal
• Connecting Level Meter (FM and AM)
• Connecting Digital Voltmeter (FM and AM)
• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
3.0 ± 1.0 mm
L3
FERRITE-ROD
ANTENNA
Adjustment Location: See page 15.

– 15 –
Adjustment Location:
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and
GND on CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the ^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)
L3
CT3
TP (VT)
(JW18)
TP
(FM ANT)
(CN4)
AM
TRACKING
ADJUSTMENT L4
CT1
L1
FM
TRACKING
ADJUSTMENT
L2
FM
FREQUENCY
COVERAGE
ADJUSTMENT
– tuner board (component side) –
π
Test Point:
RF level :
1.3
± 0.5 Vp-p
VOLT/DIV : 200 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
TP (RFO)
– CD board (conductor side) –
TP (RFO)

– 16 –
5-1. IC PIN DESCRIPTION
• IC501 CXP83120A-035Q (SYSTEM CONTROL)
Pin No. Pin Name I/O Pin Description
1 C-SCOR I CD SCOR input
2 WP I Wake-up input
3 RMC I Sircs receiver input
4 CLOSE-O O CD loading motor control output (Loading direction)
5 OPEN-O O CD loading motor control output (Eject direction)
6 OPEN-I I CD open switch input
7 CLOSE-I I CD close switch input
8 NC — Not used.
9 C-SENS1 I CD SENSE-1 input
10 C-SENS2 I CD SENSE-2 input
11 C-SQCK O CD Sub-Q read clock output
12 C-SQSO I CD Sub-Q data input
13 NC — Not used.
14 C-XRST O CD reset output
15 C-XLT O CD serial latch output
16 C-CLK O CD serial clock output
17 C-DATA O CD serial data output
18 R-ST O Stereo ingicator output
19 R-DATA O Tuner PLL data output
20 R-CLK O Tuner PLL clock output
21 R-COUNT I Tuner PLL data input
22 R-CE O Tuner PLL chip enable output
23 PCON O System power control output
24 V-DATA O Volume serial data output
25 V-CLK O Volume serial clock output
26 V-CE O Volume serial chip enable output
27 REG-CHK I Low voltage detection input
28 B/L-CONT O Back light control output
29 REC I Tape record signal input
30 INI O Tuner select initial setting output
31 LOCAL/DX I Input port for ANT sensitivity switching control on FM. (However, the LOCAL/DX
function is finally deleted so it is not used.)
32 VERSION I Tuner destination band select input
33 – 36 KEY-1 – 4 I Key input
37 S-CLK O Shift clock output
38 RST I System reset input
39 EXTAL I Oscillation input (4.19 MHz)
40 XTAL O Oscillation output (4.19 MHz)
41 VSS — GND
42 NC — Not used.
43 VSS — GND
44 AVREF I A/D converter VREF input
45 AVSS — Analog GND
46 VL O LCD drive port ON/OFF output
47 – 49 VLC-3 – 1 O LCD drive voltege terminal
50 – 53 COM0 – 3 O LCD drive common output
54 – 76 SEG0 – 22 O LCD drive segment output
77 – 79 — — Not used.
80 F-TAPE O Tape power select control output
81 F-TU O Tuner power select control output
82 F-CD O CD power select control output
SECTION 5
DIAGRAMS

– 17 –
Pin No. Pin Name I/O Pin Description
83 LED ROCK O LED (ROCK) drive signal output
84 LED POP O LED (POP) drive signal output
85 LED LIVE O LED (LIVE) drive signal output
86 LEDVOCAL O LED (VOCAL) drive signal output
87, 88 NC — Not used.
89 VDD — Power supply pin (+5 V)
90 NC — Not used.
91 VSS — GND
92 TX O Oscillation output (32.768 kHz)
93 TEX I Oscillation input (32.768 kHz)
94 ISS1 O Tape ISS1 control output
95 ISS2 O Tape ISS2 control output
96 A-MUTE O Audio mute output
97 R-MUT O Tuner mute output
98 C-MUT O CD mute output
99 TC1 I Tape play switch input
100 — — Not used (Connect to GND).

– 18 –
5-2. CIRCUIT BOARDS LOCATION
CD board
LOADING board
LAMP board
SW (L) board
TUNER board
SW (TOP) board
HEADPHONE board H/P SUB board
RECORD/PLAYBACK SWITCH board
MAIN board
BATT board
POWER board
SW (R) board

CFD-S47
5-3. BLOCK DIAGRAM — CD SECTION —
– 19 – – 20 –
M
38 33 35
18
11
10
12
13
14
79
23
20
21
22
26
25
24
• Signal path
• R-ch : same as L-ch.
: CD
27
PD1
RF AMP
FE AMP
39
36
37
PD2
LD
PD
E
F
VC
42
41
51
17
18 19
13
LD ON
SWITCH
Q701
LASER
DIODE
CONTROL
SERIAL/
PARALLEL
CONVERTER
DECODER
RF O
FOK
C. OUT
SENS1
SENS2
IIL
TTL
DATA
XLT
CLK
XRST
TTL
IIL
TRACKING
PHASE
FOCUS
PHASE
COMAND
6 16 757456171521 8 9 62
65
67
TAO FEO
SLO
RF AMP & SYSTEM SERVO PROCESSOR
IC701
DIGITAL SIGNAL PROCESSOR
IC703
VREF
TRACKING
COIL
DRIVE
26
27 25
7
3
15
FOCUS
COIL
DRIVE
T+
F+
F-
T-
2
1
SLED
MOTOR
DRIVE
12
11
SPINDLE
MOTOR
DRIVE
SL+
SP+
SP-
OUT1
OUT2
SL-
TRACKING
COIL
FOCUS
COIL
A
C
B
D
E
F
LD
PD
OPTICAL PICK-UP
BLOCK
(KSS-213C)
TIN
FIN
MUTE
SLIN
SPI
INPUT1
INPUT2
OPTICAL PICK-UP
DRIVE
IC702
LOADING MOTOR DRIVE
IC703
M702
SLED
MOTOR
M
M701
SPINDLE
MOTOR
2
8
7
LOADING
MOTOR
DRIVE 3
5
14
4
6
7
M
M651
LOADING
MOTOR
(OPEN)
(CLOSE)
CLS-O
OPEN-O
OPEN-I
CLS-I
S651
XRST
10
SENS2
9
SENS1
12
SQSO
11
SQCK
1
SCOR
16
CLK
98
MUTE
15
XLAT
17
DATA
RF
FOK
CNIN
SEIN
DATO
XLTO
CLKO
XRST
MDP SPOA XLON SENS SQSO SQCK SCOR DATA XLAT CLOK SYSM
XTAI XTAO
SERVO
AUT
SEQ.
EFM DEMODULATOR
SERIAL
INTERFACE
D/A
INTERFACE
SUB CODE
PROCESSOR
CPU INTERFACE
DIGITAL
CLV
S701
(LIMIT)
SYSTEM CONTROL
IC501 (1/2)
70
•
71
X701
16.9344MHz
DIGITAL
FILTER
&
D/A
CONVERTER
AOUT1
LOUT1
76
74
AOUT2
LOUT2
CD L-CH
R-CH
1
MAIN
SECTION
PWM
AMP
PWM
AMP
CD
04

5-4. BLOCK DIAGRAM — MAIN SECTION —
CFD-S47
– 21 – – 22 –
6
80
29
22 20 19 21
4 5 6 7
39 40 37 38 18 297
50–53
20 19 18
25 24 26 96
27
21
18 2 9 11 5
6
23
20
14
REF
RADIO L
CD L
REC L
CD L-CH
OUT-L
OUT-R R-CH
REC/PB
PRE-AMP
IC301
M
Q302
Q303
R-CH
COM 6V
R-CH
L-CH
HRP301
RECORD/
PLAYBACK
HEAD
HE301
ERASE
HEAD
1
CD SECTION
T301
S301
REC/PB
SW
REC
PB
REC
PB
REC
95 ISS2
94 ISS1
COM0 COM3
54–76 92•93 33–36
SEG0 SEG22 CE CLK DATA COUNT
LIQUID CRYSTAL
DISPLAY
LCD501
TUNER TUNER
SURROUND TONE VOL
BS
CONTROL
CK DATA BC
LATCH
VOLUME/SOUND CONTROL
IC302
POWER AMP
IC306
Q341
Q342
IN1 OUT1
VC
SP301
SPEAKER
(L-CH)
R-CH R-CH J301
99
S301
(MD PLAY)
CE
TC1
A-MUTE
86
LED VOCAL
DATA
CLOCK
F-TAPE
VOL
X502
32.768KHz
X501
4.19MHz
CLOCK
SHIFT
Q507
CLOCK
SHIFT
Q508
RESET
IC502
BIAS OSC
Q301
REC SW
Q304
COM 5V
RESET ST MUTE KEY1 KEY4 W/UP
3
SIRCS
RECEIVER
IC601
+B SW
Q509
RMC
5V
SFT-CLK XTAL1 EXTAL1 TXE TX
D501–504
S601–626
REG CHK
28
BL CONT
23
P.CON
D604
VOCAL
CE
CK
DA CD
21
16 17 1 2 8
15
10
14 18 1920
22
2124
7
16
11
2
PD1
AM IN FM IN XOUT XIN IF IN P1 MO/ST P0 BAND
X1
75KHz
9 14
AM
OSC
FM
OSC
AM
MIX
FM
MIX
AM RF
FM
RF
IF
BUFFER
LPF2/MO/ST
LPF1/BAND
ST-IND
AM
DET
6
FM
DET
AF
BUFFER
FM
MPX MUTE
R-CH
QUAD
13
IF CUT
IF CUT
R
L
CF3CF2
CFT1
RADIO
6V
RADIO
6V
RADIO
6V
D1 D2
CT1
L1 L2
L2
FM
FREQUENCY
COVERAGE
PLL
LPF
Q60
REG
Q61
CT3
L3
AM
FERRITE-ROD
ANTENNA
SW+9V
FL1
04
D350
BPF
ANT1
FM
TELESCOPIC
ANTENNA
D3 L4
FM/AM FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
SYSTEM CONTROL
IC501 (2/2)
PLL
IC2
• Signal path
: FM
: AM
: PLAY
: REC
: CD
Q80
Q10
Q11
OSC
3 13
• R-ch : same as L-ch.
IF REQ
Q13
15
2116
8
ALC 2
DET
9
LED SW
Q501
85
LED LIVE
D603
LIVE
LED SW
Q502
84
LED POP
D602
POP
LED SW
Q503
83
LED ROCK
D601
ROCK
LED SW
Q504
LAMP SW
Q357
POWER SW
Q352,358
SW9V REG
Q351
AC SW
Q357
COM5V REG
Q354
POWER SW
Q359
C0M6V REG
Q353
RECT
D901
I
D904
9V REG
IC901
LAMP SW
Q355
82
F-CD
COM 5V
CD 5V
RADIO 6V
CD5V REG
Q360
81
F-TU
COM 6V
RADIO
6V SW
Q369
B+ SW
Q505,
Q506
3 2
LOGIC
PL301
PL301,302
LCD BACK LIGHT
BACKUP
BATT
POWER
BATT
MICRO
VDD
PL302
SW 9V
S302
(MD POWER)
M301
(CAPSTAN/REEL)
D906
D905
D351
D907
LF901
T901
F902
RECT OUT
COM
BATT
D909
D908
COM 5V
COM 6V
COM 6V
VDD 9V
AC CHK
CT3,L3
AM
TRACKING
CT1,L1
FM
TRACKING
L4
AM
FREQUENCY
COVERAGE
CNJ901
( AC IN)
12
17
4
AM
HCUT
Q12
RADIO
6V
RADIO
6V
B+