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CFD-V37
SERVICE MANUAL
Ver 1.0 1999 . 04
E Model
Model Name Using Similar Mechanism Optical Pick-up Type
CD Section Tape Section CFD-V34 KSM-213CDM MF-V10-117
Tape Transport Mechanism Type
SPECIFICATIONS
CD player section System Laser diode properties Cassette-corder section Recording system 4 -track 2 channel stereo Fast winding time Approx. 120 s (sec.) with Sony cassette C-60 Frequency response TYPE1 (normal) : 70 10,000 Hz General Speakers Outputs Power output Power requirements Full range : 10 cm dia., 3.2 , cone type (2) Headphones jack (stereo minijack) For 16 64 impedance headphones 2.5 W + 2.5 W (at 3.2 , 10 % harmonic distortion) For CD radio cassette-corder : 110 120 V, 220 240 V AC Selectable, 50/60 Hz(E4,EA) 120V 60 Hz(E92) 9V DC, 6 size D (R 20) batteries For memory controller : 3V DC, 2 size AA (R 6) batteries
Spindle speed Number of channels Frequency response Wow and flutter Radio section Frequency range
Compact disc digital audio system Material: GaAlAs Wavelength: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.) 200 r/min (rpm) to 500 r/min (rpm) (CLV) 2 20 20,000 Hz + 1/-2 dB Below measurable limit
IF Aerials
FM : 87.6 107 MHz(E4,EA) 87.6 108 MHz(E92) AM : 530 1,605 MHz(E4,EA) 530 1,710 MHz(E92) FM : 10.7MHz AM : 455kHz FM : Telescopic aerial AM : Built-in ferrite bar aerial
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CD RADIO CASSETTE-CORDER
MICROFILM
CFD-V37
5-5. SCHEMATIC DIAGRAM -- TUNER/SYSTEM SECTION -- · Refer to page 34 for IC Block Diagrams.
E92 MODEL C1 47p
L1,CT1(1/4) FM TRACKING
L2, CT1(2/4) FM FREQUENCY COVERAGE
E92 MODEL
E4,EA MODEL:4.7p E92 MODEL:3.3K
L4,CT1(4/4) FM FREQUENCY COVERAGE
E4,EA MODEL
E92 MODEL
220
L3,CT1(3/4) AM TRACKING
AM
27p
· Waveform
SWITCH
1 IC501 #¡
1.0V/div 0.1µsec/div
Mark: Ref.No. C7 C8 C18,19 R5 E4 MODEL 5.6p 3.3p 0.01 330 E92 MODEL 5.6p 1.5p 0.015 470 EA MODEL 6.8p 3.3p 0.01 330
4.0MHz
4.0Vp-p 1.0V/div 1.0µsec/div
2 IC501 &¢
28
500kHz
4.5Vp-p
470
28
32
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 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. · C : panel designation. · U : B+ Line. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : CD PLAY ( ) : FM [ ] : AM · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. · Signal path. F : FM f : AM · Abbreviation E4 : 220V 240V AC area EA : Saudi Arabia E92 : 120V AV area
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CFD-V37
5-6. SCHEMATIC DIAGRAM -- POWER SECTION --
23
· Waveform
3 T301 REC
10V/div 10µsec/div
52.75kHz
40Vp-p
32 23
E4,EA MODEL
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 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. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.
E92 MODEL
POWER TRANSFORMER
E92 MODEL
· U : B+ Line. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : CD PLAY ( ) : TAPE PLAY [ ] : TAPE REC · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. · Signal path. F : FM E : PB a : REC J : CD
E4,EA MODEL
E4,EA MODEL
F902 2.5A:E4,EA MODEL 3.15A:E92 MODEL 250V
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CFD-V37
5-7. SCHEMATIC DIAGRAM -- CD SECTION --
· Refer to page 34 for IC Block Diagrams.
5-8.
IC BLOCK DIAGRAMS
IC1
GND
CXA12138S
MPX REG PLL LPF2 AM RF IN FM RF IN AM OSC FM GND FM OSC FM/AM FE OUT FM DISCRI MUTE FM RF VCO REG AFC
30
29
28 27
26 25 24 23 22 21
20
19
18
17
16
FM FRONT-END AM FRONT-END REG
VCO
MPX REG. 1/2 COUNTER 1/2 COUNTER PD1 PD2
FM IF/ DISCRI AM IF/DET AUTOBLEND TUNING INDICATOR
MONO/ST SELECT
MUTING RIPPLE FILTER 7
VCC
BAND PASS MUTE
DECODER AMP 1
PLL LPF1
2
PILOT DET LPF2
3
4
5
R CH OUT
6
L CH OUT
8
RIPPLE FILTER
9
AGC AFC1
10
AGC AFC2
11
GND
12
TUNE IND
13 14 15
BAND SELECT
CC1
FM IF IN
RF_M
IC701
CXA1992BR
RFTC PD2 PD1 PD 39 38 37 VEE 36 LD 35
PILOT DET LPF2 ST IND/ VCO CHECK
RF_O
RF_I
AM IF IN
CC2
34
33
32
31
30
29
28
+
+
PD LD
PD2 IV AMP
PD1 IV AMP
RF SUMMING AMP
+ +
FOK 27
CP
CB
+
+ +
· Waveform
APC
4 IC703 &¡
1.0V/div 50nsec/div
+
F 41
VEE
+
LASER POWER CONTROL F IV AMP
+ +
E IV AMP
+
E 42
+
VCC
FE AMP
+
IFB4
IFB2
IFB3
IFB5
IFB1
IFB6
BAL1
BAL2
BAL3
16.9344MHz
3.5Vp-p 0.2V/div 0.5µsec/div
EI 43 BAL4
+ + +
+
TOG1
TOG2
TOG3
TOG4
VEE 44
VEE
TGFL
5 IC703 #
VEE
+
FO. BIAS WINDOW COMP.
TEO 45
+
+
TRK. GAIN WINDOW COMP.
+
MIRR
LPCL
TGFL
LPC
CC1
1.2 ± 0.2Vp-p
LPFI 46
+
+
E-F BALANCE WINDOW COMP.
DFCT1
LDON
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 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. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. · U : B+ Line. · Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. · Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : CD PLAY · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. · Circled numbers refer to waveforms. · Signal path. J : CD
28 24
TEI 47
+
ATSC 48
+
FOH FOL TGH TGL BALH BALL ATSC TZC FZC
ATSC WINDOW COMP.
+
TZC 49
TZC COMP. TDFCT 50 VCC
DFCT TM1
TG1
TRACKING PHASE COMPENSATION
VC 51
VCC FZC 52
+
VEE
VEE FS2 Charge up TG2 FS4 VEE 1 FEO 2 FEI 3 FDFCT 4 FGD 5 FLB 6 FE_O 7 FE_M 8 SRCH 9 TGU 10 TG2 11 FSET 12 TA_M FSET DFCT
+
VEE
FZC COMP.
13 TA_O
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+
FOCUS PHASE COMPENSATION
+
VCC
+
FE_BIAS 40
26 SENS2
VCC
+
IIL TTL
25 SENS1
VCC
24 C. OUT
VEE
+
DFCT
23 XRST
VEE LEVEL S VEE 22 DATA
+ +
+
VCC
+
MIRR
IIL TTL
+
FOK
TTL IIL
21 XLT
20 CLK
IIL DATA REGISTER INPUT SHIFT REGISTER ADDRESS DECODER SENS SELECTOR OUTPUT DECODER VCC
19 LOCK
18 VCC
DFCTO
IFB1-6 BAL1-4 TOG1-4
FS1-4
TG1-2
TM1-7
PS1-4 ISET 17 ISET
VCC TM4 TM6
VCC 16 SL_O
+
15 SL_M VCC FS1 TM7 TM3 TM5 14 SL_P TM2
+