Aiwa Cd Stereo Cassette Recorder Csd-Fd73 Parts & Service 电路图.pdf

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1、? ? ? ? ? ? ? ? ? ? !?#? ?$?%?%?!?2#3?%?% EFM signal output. 10EFMINISlice level control; EFM signal input. 11T2ITest input. A pull-down resistor is built in. (Must be connected to 0V.) 12CLV+ O Disc motor control output. 13CLV Three-value ouput is also possible when specified by microprocessor comm

2、and. 14V/PO Rough servo/phase control automatic switching monitor output. Outputs a high level during rough servo and a low level during phase control. 15HFLITrack detection signal input. This is a Schmitt input. 16TESITracking error signal input. This is a Schmitt input. 17TOFFOTracking off output.

3、 18TGLOTracking gain switching output. Increase the gain when low. 19JP+ O Track jump output. 20JP Three-value output is also possible when specified by microprocessor command. 21PCKO EFM data playback clock monitor. Outputs 4.3218 MHz when the phase is locked. (Not used) Synchronization signal dete

4、ction ouput. Outputs a high level when the synchronization 22FSEQOsignal detected from the EFM signal and the internally generated synchronization signal agree. (Not used) 23VDDDigital system power supply. 24SL+ OSerial data command sled signal output terminal from microprocessor. 25SL 26CONT3Not us

5、ed. 27PU INICD pickup inside limit switch. 28RWOSerial data command sled output terminal from microprocessor. 29EMPHO De-emphasis monitor pin. A high level indicates playback of a de-emphasis disk. (not used) 30C2FOC2 flag output. (not used) 31DOUTODigital output (EIAJ format). (not used) 32T3 ITest

6、 input. A pull-down resistor is built in. (Must be connected to 0V.) 33T4 34NCNot connected. 35MUTELOLeft channel one-bit D/A converter mute output. (Not used) 36LVDDLeft channel one-bit D/A converter power supply. 37LCHOOLeft channel one-bit D/A converter output. IC, LC78622ED Pin No.Pin NameI/ODes

7、cription ? Pin No. Pin NameI/ODescription 38LVSSLeft channel one-bit D/A converter ground. (Must be connected to 0V.) 39RVSS-Right channel one-bit D/A converter ground. (Must be connected to 0V.) 40RCHOORight channel one-bit D/A converter output. 41RVDD-Right channel one-bit D/A converter power supp

8、ly. 42MUTERORight channel one-bit D/A converter mute output. (not used) 43XVDD-Crystal oscillator power supply. 44XOUTO Connections for a 16.93 MHz crystal oscillator element. 45XINI 46XVSS-Crystal oscillator ground. (Must be connected to 0V.) 47SBSYOSubcode clock synchronization signal output. (not

9、 used) 48EFLGOC1, C2, sigle an double error correction monitor. (not used) 49PWOSubcode P, Q, R, S, T, U and W output. (not used) 50SFSYO Subcode frame synchronization signal output. This signal falls when the subcode are in standby state. (not used) 51SBCKISubcode readout clock input. This is a Sch

10、mitt input. (Must be connected to 0V.) 52FSXOOutput pin for the 7.35 kHZ synchronization signal divided from the crystal oscillator. (Not used) 53WRQOSubcode Q output standby output. 54RWCIRead/write control input. This is a Schmitt input. 55SQOUTOSubcode Q output. 56COINICommand input pin from cont

11、rol microprocessor. 57CQCKI Input for both the command input acquisition clock and the SQOUT pin subcode readout clock input pin. This is Schmitt input. 58RESIReset input. This pin must be set low briefly after power is first applied. 59T11OTest output. Leave open. (Normally output a low level). (No

12、t used) 6016MO16.9344 MHz output. (Not used) 614.2MO4.2336 MHz output. 62T5ITest input. A pull-down resistor is built-in. (Must be connected to 0V.) 63CSI Chip seledt input. A pull-down resistor is built-in. (Must be connected to 0V if not controlled.) 64T1ITest input. No pull-down resistor. (Must b

13、e connected to 0V.) ? IC, LA9241ML Pin No. Pin NameI/ODescription 1FIN2O For the connection of the pickup photodiode. Addition to the FIN1 pin creates an RF signal and subtraction from it create an EF signal. 2FIN1OFor the connection of the pickup photodiode. 3EO For the connection of the pickup pho

14、todiode. Subtraction from the F pin creates a TE signal. 4FOFor the connection of the pickup photodiode. 5TBIInputs the DC components in the TE signal. 6TE-O For the connection of a resistor which sets the gain of the TE signal between this pin and the TE pin. 7TEOTE signal output. 8TESIITES (track

15、error sense) comparator input. The signal is passed through a BPF. 9SCIIShock detection input. 10THISets the time constant for the tracking gain. 11TAOTA amp output. 12TD-IComposes the tracking phase compensation constant between the TD and VR pins. 13TDISets the tracking phase compensation. 14JPISe

16、ts the amplitude of the tracking jump signal (kick pulses). 15TOOTracking control signal output. 16FDOFocusing control signal output. 17FD-IComposes the focusing phase compensation constant between the FD and FA pins. 18FAOComposes the focusing phase compensation constant between the FD and FA pins.

17、 19FA-IComposes the focusing phase compensation constant between the FD and FA pins. 20FEOFE signal output. 21FE-I For the connection of a resistor whichs sets the gain of the FE signal between this pin and the TE pin. 22AGNDOGround of analog signals. 23SPOSingle-ended output of the signals input to

18、 the CV+ and CV- pins. 24SPIISpindle amp input. 25SPGIFor the connection of a resistor which sets the gain in the spindle 12cm mode. (not used) 26SP-IFor the connection of the spindle phase compensation constant with the SPD pin. 27SPDOSpindle control signal output. 28SLEQIFor the connection of sled

19、 phase compensation constant. 29SLDOSled control signal output. 30SL- ISled feed signal input from the microprocessor. 31SL+ 32JP- ITracking signal input from the DSP. 33JP+ 34TGLITracking gain control signal input from the DSP. Low gain when TGL is H. 35TOFFITracking off control signal input from t

20、he DSP. Off when TOFF is H. 36TESOOutputs the TES signal to the DSP. ? Pin No. Pin NameI/ODescription 37HFLO The HFL (high frequency level) signal is used to judge whether the main beam is positioned on the pit or on the mirror. 38SLOFISled servo off control input. 39CV- ICLV error signal input from

21、 the DSP. 40CV+ 41RFSMORF output. 42RFS-O Sets the RF gain and the EFM singals 3T compensation constant togther with the RFSM pin. 43SLCO The SLC (slice level control) signal is output to control the DSPs data slice level of the RF waveform. 44SLIIInput to control the DSPs data slice level. 45DGND-G

22、round of digital signals. 46FSCOOutput for the focus search smoothing capacitor. 47TBCIThe TBC (tracking balance control) signal sets the EF balance variation range. 48NC-Not connected. 49DEFODisc defect detection output. 50CLKIReference clock input. 4.23 MHz is input from the DSP. 51CLIMicroprocess

23、or command clock input. 52DATIMicroprocessor command data input. 53CEIMicroprocessor chip enable input. 54DRFODRF (detect RF) is an output to detect the RF level. 55FSSI The FSS (focus search select) signal switches the focus search modes (+/-search /+search with respect to the reference voltage). (

24、not used) 56VCC2-VCC of servo and digital circuits. 57REFI-For the connection of bypass capacitor for the reference voltage. 58VROReference voltage output. 59LF2-Sets the time constant for disc defect detection. 60PHI-For the connection of a capacitor to hold the RF signal peak. 61BHI-For the connec

25、tion of a capacitor to hold the RF signal bottom. 62LDDOAPC circuit output. 63LDSIAPC circuit input. 64VCC1-VCC of RF signal circuits. ? ? ? ? ? ? ?!?#$%? ?!?!? ?. ?!?.?.?(?#$?+?(?#$? )?#?$?!? ? ?7?(? ?8?*?#9:4? ?$?!?.?, ?!? ?5?5*?#$?+?*?#$ ? 6?2? ?!?=?,!?.?.?.? ?!? ?0?!?;2? ?;42? ?.?!?,?.?,?!? (?1?

26、.?03A)5?B43?A?5?!? ? ?2; (?!?;2?=?!?;2? ?C?0?4?;4? Oscilloscope (DC range) TP1 (RF) TP2 (VREF) + - EYE PATTERN Must be CLEAR and MAX MAX VOLT / DIV: 50mV TIME / DIV: 0.5s RF signal waveform - 27 - MECHANICAL EXPLODED VIEW 1 / 1 35 34 33 32 31 P.C.B 11 12 12 A A A A A 36 39 37 38 9 CMS-B31TG6 30 28 2

27、9 27 B B 26 25 40 15 16 A A A A A A H 43 42 46 C C C C A A 47 48 49 7 50 F F F 50 45 44 J I P.C.B P.C.B 41 59 58 22 23 21 16 15 19 18 20 24H H P.C.B P.C.B P.C.B 10 8 7 5 1 4 2 3 6 13 17 B 12 12 13 GRILLE, TW R GRILLE, TWL GRILLE, FR R GRILLE, FR L 14 A A A 11 B 53 53 54 52 D K D E E 55 60 57 ZZM2-AR

28、2NC A A 56 A A M L 51 G 57 (HCSC1C only) (HTSCC only) only) ? ? ? ? ? ? ? ? ! ! ! ? ? ? ? ? ? ? ? ?!?#$? #?#$?%?!%?%?! ?&?$? ?&? %&?%?!?&? ! ? ? ? ? ? ? ? ?!? ?!?# ? ?!?!?$? ?%?&?$?#?$? ?%?&? ?&?$ ?# ? ?&? ?# ? ?# ?# ? ?( ? ? ? ?! ? ?! ? ? ? ?! ?&? ?%? ?& ?%? ?& ?$? ?$? ? ?&? ? ? ? ?& ?& ?$? ? ? ? ?

29、&? ?)?&? ? ?%?*?+ ?*?+ ?&? ? ?,?- ? ? ? ?*?+ ?&?#?&*?+ ?&?#?%$?*?+ ? *?+ ?&*?+ ?%$?*?+ ?!?!? ?!?! ?%$?*?+ ? ?.? ? ?.? ? ?.?,?-? ?!?.? ?!?.? ?!? ?.? ?.?*?+ ?(?.? ?.? ?)? ?.? ?&? .? ?.?*?+ ?$?.?*?+ ? ? A C 1 52 TERMINAL,LB1 B 2 3 4 5 6 7 8 9 11 12 13 14 16 17 19 20 21 22 24 23 26 27 18 28 25 29 54 15 30 31 32 1 34 35 36 38 39 40 41 42 43 44 45 46 49 48 50 53 37 33 10 47 51 55 56 ZZM-1 (File Name:EXP.EPS) 12/4/14 AR2NC ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?!? ? ? ? ? ? ? ?# ?$?# ? ?# ?$ ?!? ? ?#?%? ?# ? ? ?%? ? ? ? ? ? ? ? ?#?%?#? ? ? ? ? ? ?$ ? ? ? ? ? ?%? ?%? ?$?#? ?#? ?! ? ?