Sony CFDV-7 Service manual

CFD-V3/V7/V7L
SERVICE MANUAL
Ver 1.3 2002.06 With SUPPLEMENT-1
Photo : CFD–V7
Canadian Model
UK Model
Australian Model
CFD-V7
CFD-V3/V7/V7L
E Model
CFD-V3/V7
Model Name Using CD Section CFD-S36 Similar Mechanism Tape Section CFD-S36 CD Mechanism Type KSM-213CDP Optical Pick-up Type KSS-213C T ape Transport Mechanism Type MF-V5-117
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs W ave 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

Radio section
Frequency range
CFD-V3/V7 FM Italy 87.5 - 108 MHz
European countries 87.6 - 107 MHz Other countries 87.6 - 108 MHz
AM Italy 526.5 - 1 606.5 kHz
European countries 531 - 1 602 kHz
Other countries 530 - 1 710 kHz CFD-V7L FM 87.6 - 107 MHz LW 153 - 279 kHz
IF
FM: 10.7 MHz AM/LW: 455 kHz
Aerials
FM: T elescopic aerial AM/LW: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 10 000 Hz
– Continued on page 2 –
9-873-079-14
2002F0200-1 © 2002.06
CD RADIO CASSETTE-CORDER
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
CFD-V3/V7/V7L
Ver 1.2 2001.08
General
Speaker
Full range: 10 cm dia., 3.2 , cone type (2)
Outputs
Headphones jack (stereo minijack) For 16 - 68 impedance headphones
Maximum power output
3.6 W
Power requirements
For CD radio cassette-corder: 120 V AC, 60 Hz (Canadian, E4 model) 230 V AC, 50 Hz (Except Canadian model) 110-120V AC/220-240V AC 50/60Hz changeable (E4 model) 9 V DC, 6 R20 (size D) batteries
Power consumption
AC 20 W
Battery life
For CD radio cassette-corder: FM recording Sony R20P: approx. 13.5 h Sony alkaline LR20: approx. 20 h Tape playback Sony R20P: approx. 7.5 h Sony alkaline LR20: approx. 15 h CD playback Sony R20P: approx. 2.5 h Sony alkaline LR20: approx. 7 h
Dimensions
Approx. 420 × 165 × 256 mm (w/h/d) (16 5⁄8 × 6 1⁄2 × 10 1⁄8 inches) (incl. projecting parts)
Mass
Approx. 4.1 kg (9 lb. 1 oz) (incl. batteries)
Supplied accessory
Mains lead (1)
Design and specifications are subject to change without notice.
Information For customers in Europe
This Compact Disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located at the bottom of the player.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES 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.
2
TABLE OF CONTENTS
Specifications ............................................................................... 1
1. SERVICING NOTES ...................................................... 3
2. GENERAL
Location and Function of Controls ....................................... 4
3. DISASSEMBLY
3-1. Cabinet (Front) Sub ASSY, Cabinet (Rear) ................. 5
3-2. Control Board .............................................................. 5
3-3. Cabinet (upper) ............................................................ 6
3-4. Power Board, Inlet Board, BATT (R) Board,
BATT (L) Board ........................................................... 6
3-5. Volume Board, FM SW Board, Main Board ............... 7
3-6. PRE Board, Mechanism Deck,
Optical Pick-up Section, CD Board ............................. 7
3-7. Belt, M601 (Capstan / Reel Motor), “HRP901 Head, Magnetic (Record/Playback)”,
HE901 Head (Erase) .................................................... 8
3-8. Optical Pick-up (KSS-213C) ....................................... 8
4. DIAL POINTER INSTALLATION .............................. 9
5. ADJUSTMENTS
5-1. Mechanical Adjustments............................................ 10
5-2. Electrical Adjustments ............................................... 10
6. DIAGRAMS
6-1. Explanation of IC Terminals ...................................... 13
6-2. Block Diagrams – Tuner/TC Section – ..................... 15
6-3. Block Diagrams – Main Section – ............................. 16
6-4. Block Diagrams – CD Section – ................................ 17
6-5. Printed Wiring Boards – Main Section –
(Last digit :-11) ............ 18
6-6. Schematic Diagrams – Main Section (1/3) –
(Last digit :-11) ............ 19
6-7. Schematic Diagrams – Main Section (2/3) –
(Last digit :-11) ............ 20
6-8. Schematic Diagrams – Main Section (3/3) –
(Last digit :-11) ........... 21
6-9. Printed Wiring Boards – Main Section –
(Last digit :-13) ............ 22
6-10. Schematic Diagrams – Main Section (1/3) –
(Last digit :-13) ............ 23
6-11. Schematic Diagrams – Main Section (2/3) –
(Last digit :-13) ............ 24
6-12. Schematic Diagrams – Main Section (3/3) –
(Last digit :-13) ........... 25
6-13. Printed Wiring Boards – Control/Power Section –
(Except V7 :E4 model) ..... 26
6-13. Printed Wiring Boards – Control/Power Section –
(V7 :E4 model) ................. 27
6-15. Schematic Diagrams – Control/Power Section – ...... 28
6-16. Schematic Diagrams – CD Section – ........................ 29
6-17. Printed Wiring Boards – CD Section –...................... 30
7. EXPLODED VIEWS
7-1. Front Cabinet Section ................................................ 34
7-2. Rear Cabinet Section ................................................. 35
7-3. Upper Cabinet Section ............................................... 36
7-4. Mechanism Deck Section (1) .................................... 37
7-5. Mechanism Deck Section (2) .................................... 38
7-6. CD Block Section ...................................................... 39
8. ELECTRICAL PARTS LIST ...................................... 40
SECTION 1

SERVICING NOTES

CFD-V3/V7/V7L
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 more than 30 cm away from the objective lens.
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use Chuck Plate Jig.
• Code number of Chuck Plate Jig : X-4918-255-1
LASER DIODE AND FOCUS SEARCH OPERATION CHECK
1. Press CD open knob.
2. Open the lid for CD.
3. Push on SWITCH (S801) as following figure.
4. Confirm the laser diode emission while observing the objecting lens. When there is no emission, Auto Power Control circuit or Optical Pick-up is broken. Objective lens moves up and down once for the focus search.
Insert a precision screw driver and push SWITCH (S801)
3
CFD-V3/V7/V7L
LOCATION AND FUNCTION OF CONTROLS
SECTION 2

GENERAL

This section is extracted from instruction manual.
Inserting a cassette
With the side you want to play facing upward
* FM MODE•ISS for CFD-V7L
VOLUME
MEGA BASS
REC PLAY REW FF
i
STOP/EJECT
PAUSE
PLAY MODE
ENTER
OPR/BATT
FUNCTION .,>
TUNING
FM MODE (rear)
Z PUSH OPEN/CLOSE
x
u
Loading a CD
c
With the labeled side up
Display
C
Total track number
D
Track number
E
Programmed track
4

DISASSEMBLY

8
z
The equipment can be removed using the following procedure.
SECTION 3
CFD-V3/V7/V7L
Ver 1.1 2001.04

Cabinet (front) sub ASSY

Set
Cabinet (rear) Cabinet (upper)
Control board
Power board, Inlet board, BATT (R) board, BATT (L) board
Volume board, FM SW board, Main board
PRE board, Mechanism deck, Optical pick-up section, CD board
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR)
Knob (vol )
8
Cabinet (front) sub assy
7
Screw
+BVTP 3
5
Belt, M601 (capstan/reel motor), HRP901 Head, Magnetic (Record/playback), HE901 Head (Erase)
×
12
Cabinet (rear)
4
Screw
+BVTP 3
×
12
3-2. CONTROL BOARD
6
Open the Lid (CD)
9
Cabinet (front) sub assy
3
3
Screws
+BVTP 3
CONTROL board
×
12
2
Screws
+BVTP 3
1
Lid, battery case
×
12
2
Screws
+BVTP 2.6
1
Screws
+BVTP 2.6
×
8
×
5
CFD-V3/V7/V7L
8

3-3. CABINET (UPPER)

5
6
Screw +BVTP 3 × 10
2
Open the Holder assy, cassette by
pressing STOP/EJECT button.
Screw +BVTP 3 × 12
STOP/EJECT
button
1
Screws
+BVTP 3
×
12
3
Open the Lid (CD)
Cabinet (upper)
4
Screw
+BVTP 3
Remove the handle in the direction of the arrow.
×
12
8
9
7
CNP902
(POWER board)

3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD

BATT (R) board
4
CNP907
8
Cabinet (rear)
5
Screws
+WH 3
×
8
6
CNP90
1
+BVTP 3 × 10
6
Screws
POWER board
2
+BVTP 3 × 10
Screws
3
INLET board
CNP907
7
BATT (L) board
Cabinet (rear)

3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD

)
4
Remove solder
(four places)
0
Screws
+BVTP 3 × 10
MAIN board
5
Screw
+BVTP 3
FM SW board
2
Remove solder
(five places)
CFD-V3/V7/V7L
Ver 1.1 2001.04
×
10
7
Wire, parallel (CN802)
(15 core)
6
KH801
1
Screws
+BVTP 3 × 10
qa
S801
3
VOLUME board
8
CNP304
9
Wire, parallel (CNP305)
(10 core) (V3, V7) (12 core) (V7L)
Cabinet(upper)

3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD

8
7
Remove solder
(four places)
5
Screws
+PWH 2.6
×
10
CD board
9
Screw
+BVTT 2
×
6
0
Wire, parallel (CNP701
(16 core)
5
Screws +PWH 2.6 × 10
1
Screws +BVTP 3 × 10
3
Screw +BVTT 2 × 6
PRE board
Optical pick-up section
6
2
4
1
Screw
+BVTP 3
Mechanism deck
Cabinet(upper)
×
10
7
CFD-V3/V7/V7L
)
Ver 1.1 2001.04
3-7. BELT, M601 (CAPSTAN / REEL MOTOR), “ HRP901 HEAD, MAGNETIC (RECORD/PLAYBACK) ”,
HE901 HEAD (ERASE)
HRP901 Head, Magnetic (Record/ Playback)
HE901 Head (Erase)
7 Claws
5 Claws
3-8. OPTICAL PICK-UP (KSS-213C)
8
3 Belt
1 Screws
+B 2.6 × 5
Mechanism deck
6
2
4 M601
(Capstan/reel motor)
Claws
4
Shaft, sled
Cover, CD
Claw
Optical pick-up (KSS-213C)
1
Claw
3
Bend the stopper
5
Gear
Claw
2
Chassis ASSY, motor (MB) (spindle
8
SECTION 4
)

DIAL POINTER INSTALLATION

Note : Follow the installation procedure in the numerical order given.
1 Align the pointer with the groove of “cabinet (front) sub ASSY” and insert it as shown in the illustration. 2 Align knob (TU) with “cabinet (front) sub ASSY” and fasten the screw.
Cabinet (front) sub ASSY
1 Pointer
knob (Tu)
CFD-V3/V7/V7L
2 Screw (+BVTP 2.6 × 8)
3 Turn the knob (TU) fully in the direction of the allow as shown in the illustration. 4 Turn the tuning capacitor gear fully in the direction of the allow as shown in the illustration. 5 Fasten the “cabinet (front) sub ASSY” and cabinet (rear) with the screws.
5
3
Tuning knob
4
Tuning capacitor gear
Cabinet (rear
9
CFD-V3/V7/V7L
c
r
y
SECTION 5

ADJUSTMENTS

5-1. MECHANICAL ADJUSTMENTS

PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab :
record/playback head pinch roller erase head rubber belts capstan
2. Demagnetize the record/playback head with a head demagne­tizer. (Do not bring the head demagnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the rated power sup­ply voltage (9V) unless otherwise noted.
Torque Measurement
Torque Torque Meter Meter Reading
1.77 – 5.88 mN•m
Forward CQ-102C (18 – 60 g•cm)
(0.25 – 0.83 oz•inch)
Forward Back Tension
Fast Forward CQ-201B (45 – 95 g•cm)
Rewind CQ-201B (45 – 95 g•cm)
CQ-102C (1.0 – 5.0 g•cm)
Tape Tension Measurement
Torque Meter Meter Reading
CQ-403A
0.1 – 0.49 mN•m
(0.014 – 0.069 oz•inch)
4.42 – 9.31 mN•m
(0.62 – 1.32 oz•inch)
4.42 – 9.31 mN•m
(0.62 – 1.32 oz•inch)
more than 60g
(more than 2.12 oz)
Adjustment Location : Mechanism deck
Tape speed adjustment control inside motor
TUNER SECTION
0dB = 1 µV
AM Section
Function switch : AM or LW Volume : MIN
AM RF signal generator
Put the lead-wire antenna close to the set.

5-2. ELECTRICAL ADJUSTMENTS

TAPE RECORDER SECTION
Standard Output Level
Output terminal HP OUT
load impedance 32
output signal level 0.25V (–10dB)
Test Tape
Type Signal Used for
WS-48A 3kHz, 0dB Tape Speed Adjustment
Tape Speed Adjustment
Procedure :
Mode : Playback
test tape WS-48A (3kHz, 0dB)
set
Adjustment Value : 3,000Hz Standard Value : 2,940 - 3,060Hz
Frequency difference between the beginning and the end of the tape should be within 1.5% (45Hz).
32
J301 (phones)
0dB = 0.775V
digital frequenc counter
30% amplitude modulation by 400Hz signal. Output level : as low as possible
FM Section
Function switch : FM Volume : MIN
FM RF signal generator
22.5kHz frequency deviation by 1kHz signal. Output level : as low as possible
set
32
J301 (phones)
0.01µF
level mete
telescopi antenna terminal
10
• Repeat the procedures in each adjustment several times, and the
)
8
GND
51pin
TEST mode : momentarily short
[MAIN BOARD] (Conductor side)
R730
C
J
W
C
frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.
• Abbreviation CET : East European & Russian SP : Singapore
AM/LW IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2 455kHz
EXCEPT V7L
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 520kHz ( 520kHz) < 516kHz>
CT4 1,780kHz (1,680kHz) <1,630kHz>
( ) : V3/V7: AEP, UK, CET, SP,KR < > : V7:Italian [ ] : V7L
C844
C8
C
IC801
R851
C801
CFD-V3/V7/V7L
R
R816 R815 R814 R813
R812 R811
C810
R810
21
JW316
S351
-1 -2
320
JC310
JW317
JW318
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 620kHz
CT3 1,400kHz
V7L
LW FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 145kHz
CT4, CV2 300kHz
LW TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 160kHz
CT3, CV3 260kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 10.7MHz
FM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L2 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]
CT2 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]
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 TP (RF) and GND on CD board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the 7 button two times (LPC ON).
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/TV : 200mV TIME/DIV : 500 nS
RF level
0.7 – 1.0 Vp-p (LPC ON)
1.0 – 1.4 Vp-p (LPC OFF
When observing the eye pattern, set the oscilloscope for AC range and raise certical sensitivity
oscilloscope
(AC range)
L1 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]
CT1 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]
Adjustment Location : Main board (See page 12)
CD SECTION
How to put the set into CD Test Mode
1. Set the function switch to power off.
2. Set the function switch to CD.
3. Set Test mode by momentarily shorting both of the IC801 51pin to GND. (Shorting the terminals momentarily is sufficient). The set is into CD test mode (88 is displayed).
4. Turn the power off to release test mode.
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
[CD BOARD] (Conductor side)
JW710
R701
R706
R709
R705
R703
R702
R710
R704
C736
703
R711
C705
(RF)
TP
TP (RF)
R708
C734
2
(GND)
C731
C704
JW726
IC701
J
C703
C743
C730
R729
C747
C744
11
CFD-V3/V7/V7L
Adjustment Location :
[MAIN BOARD]
(Component side)
L4 : AM/LW Frequency Coverage Adjustment
L3: AM/LW Tracking Adjustment
T1 : FM IF Adjustment
T2 : AM/LW IF Adjustment
CV2 : LW Frequency Coverage Adjustment
(V7L)
L2 : FM Frequency Coverage Adjustment
L1 : FM Tracking Adjustment
CV3: LW Tracking Adjustment (V7L)
[MAIN BOARD]
(Conductor side)
CT1 : FM Tracking Adjustment
CT3 : AM/LW Tracking Adjustment
CT2 : FM Frequency Coverage Adjustment
CT4: AM/LW Frequency Coverage Adjustment
12
CFD-V3/V7/V7L
SECTION 6

DIAGRAMS

6-1. EXPLANATION OF IC TERMINALS

IC801 µPD789316GK-903 SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL
Pin No. Pin name I/O Description
1 – 4 NC Not used (open)
5 IC Connect to ground.
6 XT1 I Connect to ground.
7 XT2 Not used (open)
8 VDD Power supply terminal (B+ 3.3 V)
9 VSS Ground terminal
10 CL1 I Oscillator terminal (4 MHz)
11 CL2 Oscillator terminal (4 MHz)
12 RESET I Reset signal input
13 NC Not used (open)
14 SYNC–R Not used (open)
15 CE O Chip enable signal output
16 C–RST O Reset signal output to the LC78645E (IC701)
17 CAPH Charge pump capacitor terminal
18 CAPL Charge pump capacitor terminal
19 – 21 VLC0 – 2 Capacitor connect terminal
22 – 25 COM0 – 3 O LCD common drive output
26 – 43 S0 – 17 Not used (open)
44 – 48 S18 – 22 O LCD segment drive output
49 S23 Not used (open)
50 ENTER I Key (ENTER) input
51 MODE I Key (MODE) input 52 PLAY I Key (H PLAY) input
53 FR I Key (l FR) input 54 FF I Key (L FF) input 55 STOP I Key (s STOP) input
56 DOOR I Door open/close input
57 WRQ I Command signal input
58 TEST I Test mode signal terminal input (TEST: L)
59 MUTE O Mute signal output
60 FSEQ I Frame SYNC signal input
61 DRF I DRF (Defect RF) input
62 DO O Serial data output
63 DIN I Serial data input
64 CLK I Clock signal input
13
CFD-V3/V7/V7L
d
• Circuit Boards Location
VOLUME board
POWER board
PRE board
INLET board
BATT (R) board
BATT (L) board
FM SW boar
CONTROL board
MAIN board
CD board
14

6-2. BLOCK DIAGRAMS –TUNER/TC SECTION–

ANT1
TELESCOPIC ANTENNA
V7L
FM
CV3,CT3,L3
LW
TRACKING
CV2,L4,CT4
LW FREQUENCY
COVERAGE
EXCEPT V7L
TRACKING
AM FREQUENCY
COVERAGE
CT3,L3
L4,CT4
D1
AM
D2
FM FREQUENCY
FERRITE-ROD
CT1,L1
TRACKING
CT2,L2
COVERAGE
L3
AM/LW
ANTENNA
FM
L4 AM
OSC
L1 FM RF
L2 FM
OSC
V7L
CV3
CV2
CT3
CT4
CT1
CT2
CV1-1
CV1-2
CV1-3
CV1-4
TU +6V
FM/AM
FRONT-END
IF AMP,DET,FM MPX
IC1
RF IN
FRONT-END
FM RF OUT
FM OSC
AM RF IN
FRONT-END
AM OSC
FM
AM
MIX OUT
T2
AM IF
CF2
TU +6V
CF1
TU +6V
T1
FM IF
FM IF IN
AM IF IN
-11
-13
FM DET
AM DET
TU +6V
QUAD
DET OUT
V7L
CFD-V3/V7/V7L
Ver 1.2 2001.08
LPF1
L OUT
R OUT
TU +6V
R-CH
S1
EXCEPT V7L
FM MODE
MONO
STEREO
FM MODE
ISS
MONO
1
STEREO
2
V7L
MPX IN
Q2
MPX
LPF2
Q1
CD
SECTION
CD L-CH
CD R-CH
HRP901
RECORD/
PLAYBACK
HEAD
HE901 ERASE
HEAD
R-CH
TU IN L CD IN L
PRE/REC
AMP
IC301
MUTE
L.LINE
22
L.RAD
24
MIC AMP
MIC
13
MUTE
PB AMP
L.IN
5
REC AMP(26dB)
L.RO
4
DET
TAPE
PB AMP
ALC
1
S301
REC
PB
REG
6
BUFFER
REF
T301
-2
-1
21
TU +6V
REC
MONITOR
LOGIC
AMP
(7dB)
BIAS
OSC
Q301
L.LO
LINE
TAPE
20
17
15
V7L
ISS1 Q303
V7L
ISS
L.OUT
CD
TAPE
L.OUT
FM
CD
TAPE
MAIN
SECTION
MAIN
SECTION
• Signal path.
F : FM f : AM E : PLAY a : REC J : CD
• IC link button.
-11
Last digit : -11
-13
Last digit : -13
R-CH IS OMITTED:SAME AS L-CH
1515
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