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CFS-515S
SERVICE MANUAL
Ver. 1.0 1998.07
E Model
Model Name Using Similar Mechanism Tape Transport Mechanism Type
NEW MF-W495-117
SPECIFICATIONS
FM : Saudi Arabia model : 87.6 107MHz EXCEPT Saudi Arabia model : 87.6 108MHz MW : 530 1,605kHz SW1 : 2.3 7 MHz SW2 : 7 22MHz IF FM : 10.7MHz MW/SW : 455kHz Aerials FM/SW : Telescope MW : Built-in ferrite bar Recording system 4-track, 2-channel stereo Frequency response 70 13,000Hz Speakers Full range : 10cm (4 inches) dia., 6ohms, cone type/Tweeter : 2cm (13/16 inches) dia. Output Headphones jack (stereo minijack), for 16 68 ohms impedance headphones Maximum Power output 5W+5W Battery life FM Recording : Sony R20P : Approx. 10hours/ Sony LR20 alkaline : Approx. 20hours Playback : Sony R20P : Approx. 3.5hours/ Sony LR20 alkaline : Approx. 8hours Power requirements 110 120V/220 240V AC selectable, 50/60Hz 9V DC, six R20 (size D) batteries Power consumption AC 18 W Dimensions Approx. 697 x 211 x 201.5 mm (w/h/d) (27 1/2 x 8 3/8 x 8 inches) incl. projecting parts and controls, not incl. handle Mass Approx. 6.2 kg (13 lb 10 oz) incl. batteries Supplied accessories AC power cord (1), Design and specifications are subject to change without notice. Frequency range
RADIO CASSETTE-CORDER
MICROFILM
5-3. SCHEMATIC DIAGRAM MAIN SECTION
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Refer to page 14 for Note.r Refer to page 23 for IC Block Diagrams.
CFS-515S
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Waveforms
1
4.9Vp-p
2
45.5Vp-p
12.6 µsec
12.6 µsec
VOLT/DIV : 1 V AC TIME/DIV : 5 µsec
T301
T301
VOLT/DIV : 10 V AC TIME/DIV : 5 µsec
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18
19
CFS-515S
5-4. PRINTED WIRING BOARDS TUNER SECTION 5-5. SCHEMATIC DIAGRAM TUNER SECTION
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Refer to page 24 for IC Block Diagram.
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Semiconductor Location
Ref. No. D1 D2 D3 IC1 Q1 Q2 Location E-2 E-2 D-2 D-4 C-2 E-4
Note: · X : parts extracted from the component side. · b : Pattern from the side which enables seeing. · Abbreviation EA : Saudi Arabia
Note: · All capacitors are in µ F unless otherwise noted. pF: µµ F 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. ˘ · : internal component. · U : B+ Line. · H : adjustment for repair. · Power voltage is dc 9V and fed with regulated dc power supply from battery terminal. · Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW < > : SW1,SW2
· Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Signal path. F : FM · Abbreviation EA : Saudi Arabia
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21
22
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1
32
A-L
1
B-L 2 BS
B.S.2
N.C
2
31
TAPE-NF-L 3
OUT2
B-R
3
TAPE-O-L
30
TR-B 4
VCC
IC301 BA3426AS
4
IC101, 201 BA5417
T. S. D
29
A-R TR-C 5 BS 6
OUT1 B.S.1
5
28
TAPE-NF-R TAPE-MODE 7
POWER GND
6
REC EQ
TAPE-O-R FNC 8
SW
26 27 REC EQ
ST. BY
HS : 1.4V OUT (Low lmp.)
7 LOGIC
MIC/HS REC-EQ-L 9
RIPPLE
25
FILTER
8
IC Block Diagrams (Main Section)
MIC-NF REC-EQ-R
24 9 10 23
Nor : 0.35V OUT (Hogh lmp.) ECM : Open Mic : Low 10
NF1
MIC -IN REC-NF-L REC-NF-R
11
IN1 IN2 NF2 PRE GND PRE GND
RADIO-IN -L
11 22
12
RADIO-IN -R LPF-L LPR-R CD-IN-L
12 13 20 21
13 14 15
23
AGC
CD-IN-R
14 15 16 VCC
AGC
19
LINE-OUT-L
BIAS
18
LINE-OUT-R BIAS-IN
GND
17
VCC
IC302 CXA1352AS
OUT 2 (VARIABLE)
LINE OUT 2
1kHz
OUT 2 (FIX)
10kHz
DVCC
4kHz
DC 2
IN 2
VCC
22
21
20
19
18
17
16
15
14
13
12
15dB 29dB VOLUME
GRAPHIC EQUALIZER CONTROL BIAS GRAPHIC EQUALIZER
29dB 15dB VOLUME
1
400Hz
2
100Hz
3
BAL
4
VOL
5
DC 1
6
IN 1
7
GND
8
LINE OUT 1
9
OUT 1 (FIX)
10
OUT 1 (VARIABLE)
11
ISET
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IC Block Diagram (T ner Section) u
IC1 CXA1238S
MPX REG PLL LPF2 AM RF IN REG OUT FM RF IN AM OSC FM OSC FM DISCRI MUTE FM/AM FE OUT
FM RF
GND
VG
30
29
28
27
26 25 24 23 22 21
20
19
18
17
GND
VCO
AFC
16
FM FRONT-END AM FRONT-END REG REG
VCO
MPX REG. 1/2 COUNTER 1/2 COUNTER MONO/ST SELECT MUTING RIPPLE FILTER 7
VCC
FM IF / DISCRI PD 1 PD 2 AUTOBLEND AM IF / DET TUNING INDICATOR
BAND PASS MUTE
DECORD AMP 1
PLL LPF 1
2
3
4
5
RCH OUT
6
LCH OUT
8
RIPPLE FILTER
9
AFC/AGC 1
10
AFC/AGC 2
11 12
GND TUND IND
13 14 15
FM IF IN AM IF IN BAND SELECT
PILOT DET LPF 1 PILOT DET LPF 2 ST IND/ VCO CHECK
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