Aiwa-XRM191-cs-sm 电路图 维修手册.pdf

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1、SERVICE MANUAL DATA XR-M171 XR-M191 U U,LH COMPACT DISC STEREO SYSTEM S/M Code No. 09-013-443-6R1 REVISION BASIC CD MECHANISM : 3ZG-3 E2NC BASIC TAPE MECHANISM: BZM-1 AR2NC This Service Manual is the “Revision Publishing” and replace “Simple Manual” XR-M171/191, (S/M Code No. 09-012-443-6T1). XRM171

2、 SPEAKERSYSTEM SXLM171CXLM171 REMOTE CONTROLLER RCAAT11 CD CASSEIVER XRM191SXLM191CXLM191 RadioFans.CN 收音机爱 好者资料库 2 SPECIFICATIONS TUNER FM tuning range:87.5 MHz to 108 MHz FM usable sensitivity(IHF):13.2 dBf FM antenna terminals:75 ohms (unbalanced) AM tuning range:530 kHz to 1710 kHz (10 kHz step)

3、 531 kHz to 1602 kHz (9 kHz step) AM usable sensitivity:350 ?V/m AM antenna:Loop antenna AMPLIFIER XR-M171 Power output:8 W + 8 W (50 Hz - 20 kHz, THD less than 1%, 16 ohms) 10 W + 10 W (1 kHz, THD less than 10%, 16 ohms) Total harmonic distortion:0.2% (6 W, 1 kHz, 16 ohms, DIN AUDIO) XR-M191 Power

4、output:12 W + 12 W (50 Hz - 20 kHz, THD less than 1%, 8 ohms) 15 W + 15 W (1 kHz, THD less than 10%, 8 ohms) Total harmonic distortion:0.2% (8 W, 1 kHz, 8 ohms, DIN AUDIO) XR-M191 Power output:Rated: 12 W + 12 W (1 kHz, THD less than 1%, 8 ohms) Reference: 15 W + 15 W (1 kHz, THD less than 10%, 8 oh

5、ms) Total harmonic distortion:0.2% (8 W, 1 kHz, 8 ohms, DIN AUDIO) Input:VIDEO/AUX: 0.4 V Output:SUB WOOFER: 500 mV SPEAKERS: 16 ohms or more 8 ohms or more PHONES: 32 ohms or more CASSETTE DECK Track format:4 tracks, 2 channels stereo Frequency response:50 Hz - 15 kHz Recording system:AC bias Heads

6、:Recording/playback x 1, erase x 1 CD PLAYER Laser:Semiconductor laser (?= 780 nm) D/A converter:1 bit dual Signal-to-noise ratio:75 dB (1 kHz, 0 dB) Harmonic distortion:0.2 % (1 kHz, 0 dB) SPEAKERS SX-LM171 (only for XR-M171) Speaker system:2 way, bass reflex Speaker units:Woofer: 120 mm (4.7 in.)

7、cone Tweeter: 20 mm (0.78 in.) cone Impedance:16 ohms Dimensions (W x H x D): 144 x 255 x 204 mm ( 5.7 x 10 x 8 in.) Weight:1.0 kg (2 lbs 3 oz) SPEAKERS SX-LM191 (only for XR-M191) Speaker system:2 way, bass reflex Speaker units:Woofer: 120 mm (4.7 in.) cone Tweeter: 20 mm (0.78 in.) cone Impedance:

8、8 ohms Dimensions (W x H x D): 144 x 255 x 204 mm ( 5.7 x 10 x 8 in.) Weight:1.5 kg (3 lbs 5 oz) GENERAL Power requirements:120 V AC, 60 Hz 120 V/220 - 230 V/240 V AC (Switchable), 50 Hz/60Hz Power consumption:35 W, 45 W Power consumption in standby mode:With ECO mode on: 1.0 W With ECO mode off: 10

9、 W Dimensions ( W x H x D): 167 x 255 x 240 mm (6.5 x 10 x 9.5 in.) Weight:3.5 kg (7 lbs 12 oz) Design and specifications are subject to change without notice. ACCESSORIES / PACKAGE LIST KANRI NO. REF. NO.DESCRIPTIONPART NO. ? ? ? ? !? ? !?#?# ? ? ?!?!? ?$?# %?# ? adding this pin to pin FIN1 generat

10、es RF signal, and subtracting it generates FE signal. 2FIN1IConnects to the pickups photo diode. 3EI Connects to the pickups photo diode; subtracting this pin from pin F generates TE signal. 4FIConnects to the pickups photo diode. 5TBIInput for DC component of TE signal. 6TEIConnects to the resistor

11、 between this pin and TE pin for setting the gain of TE signal. 7TEOOutput for TE signal. 8TESIIInput for TES (Track Error Sense) comparator, TE signal is band-passed and inputted. 9SCIIInput for shock detection. 10THIFor setting tracking gain time constant. 11TAOTA amplifier output pin. 12TDIFor co

12、nstructing tracking phase compensation constant between TD and VR pins. 13TDOFor setting tracking phase compensation. 14JPIFor setting the amplifier of tracking jump signal (kick pulse). 15TOOOutput for tracking control signal. 16FDOOutput for focusing control signal. 17FDIFor constructing focusing

13、phase compensation constant between FD and FA pins. 18FAOFor constructing focusing phase compensation constant between FD and FA pins. 19FAIFor constructing focusing phase compensation constant between FA and FE pins. 20FEOOutput for FE signal. 21FEIConnects to the gain-setting resistor of FE signal

14、 between this pin and FE pin. 22A-GNDGND for analog signals. 23SP OSingle end output of CV+ and CV pin input signal. 24SPI 25SPGIConnects to the gain-setting resistor during spindle 12cm mode. 26SPIConnects to spindle phase compensation constant together with SPD pin. 27SPDOOutput for spindle contro

15、l signal. 28SLEQIConnects to sled phase compensation constant. 29SLDOOutput for sled control signal. 30SLIInput for sled-sending signal from microcontroller. 31SL+IInput for sled-sending signal. 32JP IInput for tracking-jump signal from DSP. 33JP+ 34TGLIInput for tracking gain control signal from DS

16、P; gain is low if TGL = H. 35TOFFIInput for tracking off control signal from DSP; off if TOFF = H. 36TESOOutputs TES signal to DSP. 37HFLO HIGH FREQUENCY LEVEL; used to determine whether the main beam is on a pit or on a mirror. 38SLOFIInput for sled servo off control. Pin No.Pin NameI/ODescription

17、IC, LA9241ML 27 39CV IInput for CLV error signal from DSP. 40CV+ 41RFSMOOutput for RF. 42RFSOFor setting RF gain and 3T compensation constant together with RFSM. 43SLCO SLICE LEVEL CONTROL; output for controlling the data slice level of DSP with RF waveform. 44SLIIInput for controlling the data slic

18、e level of DSP. 45D-GNDGND for digital system. 46FSCOOutput pin for focus search smoothing capacitor. 47TBCI(Tracking Balance Control) EF balance variable range setting pin. 48NCNot connected. 49DEFOOutput for disk defect detection. 50CLKIStandard clock input; DSPs 4.23MHz is inputted. 51CLIClock in

19、put for microcontroller command. 52DATIData input for microcontroller command. 53CEIChip-enable input for microcontroller command. 54DRFODetect RF; output for RF level detection. 55FSSI (Focus Search Mode) = search/+search against reference voltage switching pin. (Not used) 56VCC2VCC pin for servo a

20、nd digital systems. 57REFIIFor connecting pass capacitor to reference voltage. 58VROReference voltage output. 59LF2For setting disk defect-detection time constant. 60PHIConnects to capacitor for RF signal peak hold. 61BHIConnects to capacitor for RF signal bottom hold. 62LDDOOutput for APC circuit.

21、63LDSIInput for APC circuit. 64VCC1VCC pin for RF system. Pin No.Pin NameI/ODescription 28 1DEFIIDefect detection signal (DEF) input. 2TAIITest input. A pull-down resistor is built in. Must be connected to 0V. 3PDOOExternal VCO control phase comparator output. 4VVSSInternal VCO ground. Must be conne

22、cted to 0V. 5ISETOPDO output current adjustment resistor connection. 6VVDDInternal VCO power supply. 7FRVCO frequency range adjustment. 8VSSDigital system ground. Must be connected to 0V. 9EFMOOSlice level control; EFM signal output. 10EFMINISlice level control; EFM signal input. 11T2ITest input. A

23、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 command. 14V/PO Rough servo/phase control automatic switching monitor output. Outputs a high level during rough servo and a low level

24、 during phase control. 15HFLITrack detection signal input. This is a Schmitt input. 16TESITracking error signal input. This is a Schmitt input. 17TOFFOTracking off output. 18TGLOTracking gain switching output. Increase the gain when low. 19JP+ O Track jump output. 20JP Three-value output is also pos

25、sible when specified by microprocessor command. 21PCKO EFM data playback clock monitor. Outputs 4.3218 MHz when the phase is locked. (Not used) Synchronization signal detection ouput. Outputs a high level when the synchronization 22FSEQOsignal detected from the EFM signal and the internally generate

26、d synchronization signal agree. (Not used) 23VDDDigital system power supply. 24SL+ OSerial data command sled signal output terminal from microprocessor. 25SL 26NCNot used. 27PU INICD pickup inside limit switch. 28CD R/WOCD R/W gain ON/OFF signal. 29EMPHO De-emphasis monitor pin. A high level indicat

27、es playback of a de-emphasis disk. (Not used) 30C2FOC2 flag output. (Not used) 31DOUTODigital output (EIAJ format). (Not used) 32T3 ITest 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. 36LVDDLeft chann

28、el one-bit D/A converter power supply. Pin No.Pin NameI/ODescription IC, LC78622NE 29 37LCHOOLeft channel one-bit D/A converter output. 38LVSSLeft channel one-bit D/A converter ground. (Must be connected to 0V) 39RVSSRight channel one-bit D/A converter ground. (Must be connected to 0V) 40RCHOORight

29、channel one-bit D/A converter output. 41RVDDRight channel one-bit D/A converter power supply. 42MUTERORight channel one-bit D/A converter mute ouput. 43XVDDCrystal oscillator power supply. 44XOUTO Connections for a 16.934MHz crystal oscillator element. 45XINI 46XVSSCrystal oscillator ground. Must be

30、 connected to 0V. 47SBSYOSubcode block synchronization signal output. (Not used) 48EFLGOC1, C2 single and double error correction monitor pin. (Not used) 49PWOSubcode P, Q, R, S, T, U, V and W output. (Not used) 50SFSYO Subcode frame synchronization signal output. This signal falls when the subcode

31、are in the standby state. (Not used) 51SBCKI Subcode readout clock input. This is a Schmitt input. (Must be connected to 0V when unused) 52FSXO Output for the 7.35 kHz synchronization signal divided from the crystal oscillator. (Not used) 53WRQOSubcode Q output standby output. 54RWCIReadwrite contro

32、l input. This is a Schmitt input. 55SQOUTOSubcode Q output. 56COINICommand input from the control microprocessor. 57CQCKI Input for both the command input acquisition clock and the SQOUT pin subcode readout clock input. This is a Schmitt input. 58RESIChip reset pin. (This pin must be set low briefly

33、 after power is first applied) 59T11OTest output. Leave open. (Normally outputs a low level). (Not 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 select input. A pull-down resistor is built

34、in. Must be connected to 0V if not controlled. 64T1ITest input. No pull-down resistor. (Must be connected to 0V) Pin No.Pin NameI/ODescription 30 ADJUSTMENT 1.Clock Frequency Check Settings : Test point :TP2 (CLK) Method :Set to AM 1710 kHz and check that the test point is 2160 kHz 45 Hz. 2.AM VT Ch

35、eck Settings : Test point :TP1 (VT) Method :Set to AM 1710 kHz and check that the test point is less than 8.5 V. Then set to AM 530 kHz and check that the test point is more than 0.6 V. 3.AM Tracking Adjustment Settings : Test point :TP8 (Rch), TP9 (Lch) Adjustment location : L951(1/3) Method :Set t

36、o AM 1000 kHz and adjust L951(1/3) so that the test point becomes maximum. 4.AM IF Adjustment Settings : Test point :TP8 (Rch), TP9 (Lch) Adjustment location : L802 L802 . 450 kHz 5.FM VT Adjustment Settings : Test point :TP1 (VT) Adjustment location : L907 Method :Set to FM 108.0 MHz and adjust the

37、 L907 so that the test point is 7.00 V 0.05 V. 6.FM VT Check Settings : Test point :TP1 (VT) Method :Set to FM 87.5 MHz check that the test point is more than 0.5 V. 7.FM Tracking Adjustment Settings : Test point :TP8 (Rch), TP9 (Lch) Adjustment location: L904 Method :Set to FM 98.0 MHz and adjust L

38、904 so that the test point becomes maximum and distortion to minmum. 8.FM Tracking Check Settings : Test point :TP8 (Rch), TP9 (Lch) Method :Set to FM 98.0 MHz and check that the test point is less than 9 dBV. 9.DC Balance / Mono Distortion Adjustment Settings : Test point :TP3, TP4 (DC Balance) TP8

39、 (LCH), TP9 (RCH) (Mono Distortion) Adjustment location : L801 Input level :60 dBV Method :Set to FM 98.0 MHz and adjust L801 so that the voltage between TP3 and TP4 becomes 0 V 500 mV with minimum distortion. 10. Output Level Check Settings : Test point :TP8 (Rch), TP9 (Lch) Input level : 74 dBV Me

40、thod :Set to AM1000 kHz and check that the test point is 55 mV 3 dB. Settings : Test point :TP8 (Rch), TP9 (Lch) Input level : 60 dBV Method :Set to FM 98.0MHz and check that the test point is 270 mV 3 dB. 11. FM Separation Check Settings : Test point :TP8 (Rch), TP9 (Lch) Input level :60 dBV Method

41、 :Set to FM 98.0 MHz and check that the separation more than 25 dB. 1.Tape Speed Check Settings : Test tape :TTA100 Test point :SP OUT Method :Play back the test tape and check the test point is 3000 Hz 5 Hz (FWD) and FWD speed 45 Hz (REV). 2.Head Azimuth Adjustment Settings : Test tape :TTA330 Test

42、 point :SP OUT Adjustment location : Head azimuth adjustment screw Method :Play back (FWD) the 8 kHz signal of the test tape and adjust screw so that the output becomes maximum. Next, perform on REV PLAY mode. 3.PB Frequency Response Check Settings : Test tape :TTA320 Test point :SP OUT Method :Play

43、 back the 315 Hz and 10 kHz signals of the test tape and check that the output ratio of the 10 kHz signal with respect to that of the 315 Hz signal is -3 dB 3 dB. 4.REC/PB Frequency Response Check Settings : Test tape :TTA602 Test point :SP OUT Input signal :8 kHz/1 kHz (-20 VU / 0dB) Method :Apply

44、a 1 kHz signal and REC mode. Record and play back the 1 kHz signals and check that the output is -2 dB 3 dB. 31 32 CD TEST MODE 1. How to Activate CD Test Mode While pressing the CD function button, insert the AC plug to the outlet. All FL display will light up. 2. How to Cancel CD Test Mode Exit th

45、e CD test mode by any of the following procedures. Press the function button (except the CD function button.) Press the power button. Disconnect the AC plug. 3. CD Test Mode functions *1: The driver IC heats up and the protection circuit starts working when the focus search is continued for 10 minut

46、es or longer. There can be a case that operations cannot be performed correctly. In such a case, turn off the main power. After cooling down the machine, restart the machine. *2: Be careful not to damage the gear because the sled motor rotates while the FF or RWD button is being pressed even if the

47、pick-up is located in the innermost track or the outermost track. Mode Start mode Search mode (without DISC) Play mode Sled mode Operation PLAY button PLAY button FF button RWD button FL Display All lit Normal Normal Operation Laser diode illuminated under normal circum stances Continuous focus sear

48、ch *1 Continuous spindle motor kick Normal playback If TOC cannot be read, focus search is continued Pickup move to the innermost track *2 Pickup moves to the outermost track *2 Checking item FL item Microprocessor APC circuit Laser current Focus search waveform Focus error waveform (DRF are not monitored in the search mode Each servo circuit DRF Sled circuit Mechanism Pickup No 1 2 3 4 33 MECHANICAL EXPLODED VI