Jvc-PCX-270-Service-Manual电路原理图.pdf

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1、 S E R V I C E M A N U A LMODEL : PC-X270 ( C )AM/FM RADIO CASSCD PORTABLE SYSTEM MATESTAR ELECTRONICS LTD.PERFORMANCE SPECIFICATIONSDate : 7 May , 2003Model : PC-X270Band : AM / FM (PLL RADIO)CD CASSETTE SystemPage Total 6 PagesGENERAL TEST CONDITIONOutput Load 3 ohm non-reactiveReference Output :

2、250 mWInput Signal Source : IRE LOOP for AM75 ohm dummy for FMModulation : 30% 400 Hz for AM22.5 KHz Deviation 1 KHz for FM75KHz Modulation for FM MPXRemarks DC : 12VAC : 120V 60Hz* * * Subject to change without notice .Prepared by Approved bypage 1i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

3、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

4、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

5、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

6、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0PERFORMANCE SPECIFICATIONSMODEL NO : PC-X270Amplitude Modulation ( AM ) SectionTest Item Unit Nominal Limit #1 #2A.01 Tuning Range LOW KHz 520 +/-5HIGH KHz 1710 +/-5A.02 I.F. Frquency 600KHz KHz 450 +/-5A.03 Sensitivity (AM Loop ANT.) (LOW TP) 600KHz dB/m

7、 58 68S/N 20dB (MID TP) 1000KHz dB/m 58 66(HIGH TP) 1400KHz dB/m 58 66A.04 Image Rejection 1000KHz dB1400KHz dB 37 30A.05 S/N Ratio at 100dB/m Input 600KHz dB 35 301000KHz dB 35 301400KHz dB 35 30A.06 I.F. Rejection (MW)600KHz dB 48 40A.07 AM Whistle Modulation 910/1350KHz %-15A.08 Selectivity (+/-1

8、0KHz) (ACA) 600KHz dB1000KHz dBA.09 AGC Figure of Merit (126dB) 1000KHz dB 40 35A.10 Audio Response -6dB (AM:1000KHz) LOW Hz 70 125HIGH KHz 2K5 2KA.11 Distortion 30% at Ref. 1000KHz % 1 360% at Ref. 1000KHz % 5 10A.12 Modulation Hum (AC) 1000KHz dB 50 40A.13 Overload (M=80% THD=10%) 1000KHz mV/m 100

9、A.14 Min. Volume Hum and Noise mV 0.7 1.2A.15 10% THD Power(Mod:80%)(1-CH Load Only)( AC ) W5A.16 Max. Vol. Audio Power Output (80% Mod) 1000KHz WA.17 6dB Bandwidth at 20dB S/N 1000KHz KHz 4 +/-3A.18 Auto Search Threshold 600KHz dB/m 60 681000KHz dB/m 60 661400KHz dB/m 60 66A.19 OSC Dropout Voltage

10、Max. Power (DC) 1000KHz V 8.4 10.8Fial Out Valtage (AC) 1000KHz %70page 2i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

11、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

12、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

13、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0PERFORMANCE SPECIFICATIONSMODEL NO : PC-X270Frequency Modulation ( FM ) SectionnTest Item Unit Nominal Limit #1 #2F.01 Tuning Range

14、 LOW MHz 87.9 +/-0.1High MHz 107.9 +/-0.1F.02 Frequency Step 200/100Hz KHz F.03 I.F Frequency 90.1MHz MHz 10.7 +/-0.09F.04 Sensitivity at -30dB S/N (MONO) 90.1MHz dB/uM 20 2898.1MHz dB/uM 20 28106.1MHz dB/uM 20 28F.05 3 dB Limit Sens 98.1MHz dB 15 25F.06 Stereo Threshold (Dev 75KHz) 98.1MHz dB 15 25

15、F.07 Overload 98.1MHz dB110F.08 Image Rejection 90.1MHz dB106.1MHz dB 25 18F.09 I.F. Rejection 90.1MHz dB 50 40F.10 AM Suppression 98.1MHz dB 30 24F.11 Spurious Suppression 98.1MHz dBF.12 Selectivity at 98.1MHz +/-400KHz 98.1MHz dBF.13 Audio Response -6dB 98.1MHz Hz/KHz 60/4K5 100/4KF.14 Channel Sep

16、aration (1KHz) 98.1MHz dB 30 20F.15 Total Harmonic Distortion (60dB) Mono Ref. 22.5KHz % 1 3Max Powe 75KHz % 1030F.16 Signal to Noise Ratio (Input 60dB) 90.1MHz dB98.1MHz dB 45 40106.1MHz dBSTEREO S/N(INPUT 60dB) W/F B.P.F 98.1MHz dB 40 30F.17 Auto Search Threshold 98.1MHz dB 25 30106.1MHz dBF.18 Mo

17、dulation Hum (AC) 98.1MHz dB 45 40F.19 AFC Holding Range 98.1MHz KHzF.20 Min. Volume Hum & Noise 98.1MHz mV 0.7 1.2F.21 10% THD Power(Dev 75KHz)(1-CH Load Only)( AC ) 98.1MHz W5F.22 Max Power 98.1MHz WF.23 OSC Dropout Voltage Max. Power (DC) 98.1MHz V 8.4 10.8(AC) 98.1MHz %70page 3i0i0i0i0i0i0i0i0i0

18、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

19、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

20、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

21、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

22、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0PERFORMANCE SPECIFICATIO

23、NSMODEL NO : PC-X270AUX SCETION:Test Item Unit Nominal Limit #1 #2C.01 THD 10% Power Output (AC) ( 1-CH Load Only) 1KHz W5C.02 Noise Level (Volume Max.) mV 5 15C.03 Noise Level (Volume Min.) mV 0.7 1.2C.04 Distortion 1KHz % 1 4C.05 S/N Ratio 1KHz dB 55 45C.06 Separation 1KHz dB 35 25C.07 Mute Effect

24、 1KHz dB 55 45C.08 Aux Cross Talk CD (Tuner) W/B.P.F 1K/10K dB 55 50C.09 Function Level Deference (450mV/500mV) IN dB 0 +/-5(1KHz 0dB) CD dB 0 +1122.5KHz Mod. FM dB 0 -10(30% Mod) MW dB 0 -101KHz -4dB INPUT Tape play dB 0 0Recording CD -10dB Tape R/P dB 0 +/-5C.10 Frequency Response 100Hz dB +-3 +5/

25、-31KHz dB 0 02KHz dB +-1 +/-310KHz dB +-1 +/-3page 4i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

26、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

27、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

28、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

29、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0

30、i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0PERFORMANCE SPECIFICATIONSCD SECTION : PC-X270Test Items Unit Nominal Limit #1 #21 Flat (Bass off) 100Hz dB 0 -310KHz dB +2 -3Rock (Bass off) 100Hz dB +10 +1310KHz dB +5 +1Jazz (Bass off) 100Hz dB -4 -610KHz dB -3 -5Pop (Bass off) 100Hz dB 0 -1010KHz dB

31、0 -8Classic (Bass off) 100Hz dB +1 -510KHz dB +4 -102 HPS VR 50% 100Hz dB +10 +53 Frequency Response TCD-782 100Hz dB +3 -310KHz dB +3 -320KHz dB +3 -84 Signal to Noise Ratio (Unweighted) 1KHz dB 60 505 Dynamic Range 1KHz dB 60 506 Channel Seperation 1KHz dB 45 307 Total Harmonic Distortion TCD-782

32、1KHz(0dB) % 25 338 Total Harmonic Distortion TCD-782 1KHz(-10dB) % 1 3.59 Channel Unbalance TCD-782 1KHz dB 310 Short Access Time TCD-782 Secs 2 411 Long Access Time (Stop to TR24) TCD-782 444 Secs 5 1312 Interruption TCD725B um 0.8 0.613 Black Dot TCD725B um 6514 Finger Printo TCD725B um 6515 Outpu

33、t Power at 10% THD T112(AC)(1-CH Load Only) 1KHz W516 Max. Vol. Audio Power Output (0dB) 1KHz W17 Skip Test (Madonna,Bass/Surr ON) TR 17 Vol.Max. NO SKIP18 Min Volume Noise (SP OUT) TCD-782 mV 3.519 Max. Volume Noise TCD-782 mV 5 1220 Eccentricity TCD-782 um 0.74 0.6321 Vertical Deviation TCD-782 mm

34、 8.6 10.822 Dropout Voltage 0dB (DC) 1 KHz V 8.6 10.8(AC) 1 KHz %70page 5i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

35、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

36、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

37、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

38、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

39、0i0i0i0i0i0i0i0i0i0PERFORMANCE SPECIFICATIONSCASSETTE SECTION : PC-X270Test Items TAPE Unit Nomina Limit #1 #2T.01 Playback S/N Ratio (Unweighted)-12 A B dB 45 35T.02 Playback THK-T118 (at Ref O/P) A B % 1 3T.03 Channel Seperation (PB Only)-T141 A B 1KHz dB 40 30T.04 Track Crosstalk (PB Only)-T121 A

40、 B 1KHz dB 40 30T.05 Tape Speed Deviation-T111 A B 3KHz KHz 4.75CM/S +-3T.06 L/R CH. Difference A B dB 0 +-3T.07 Wow and Flutter-JIS weighted-T111 A B P/B Only %0.35R/P - -0.5T.08 Winding Time C-60 Type A B F.Few Secs 170Play Secs 170T.09 Torque A B Rewind gm-cm 35-70F.F gm-cm 75 551KHz gm-cm 75 55T

41、.10 P/R Dist. at Standard O/P A 1KHz % 2 7T.11 R/P Difference (CD-10dB 1KHz) A 1KHz dB +3 -3T.12 R/P Separation (W/1KHz BPF) A B 1KHz dB 35 30T.13 R/P Cross Talk (W/1KHz BPF) A B 1KHz dB 45 40T.14 R/P S/N Ratio (W/1KHz BPF) A 1KHz dB 60 35T.15 R/P Erase Ratio (W/1KHz BPF) A 1KHz dB 60 35T.16 R/P Cha

42、nnel Balance A 0 +-3T.17 R/P Freq. Response 1KHz Ref 125Hz dB +-1 +-36K3 dB +-1 +3/-6T.18 Min. Volume Hum A Play mV 3.5T.19 Max. Volume Hum & Noise A mV 30 80T.20 Output Power at 10% THD-T112 0dB(AC) A B 1KHz W5(1-CH Load Only)T.21 AC Bais FREQ. KHz 65 +0.5T.22 ALC Effect-65dB(-45dB INPUT) A B dB 0

43、5i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

44、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

45、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

46、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i

47、0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0i0page 6IC &TRANSISTOR VOLTAGES MODEL : PC-X270IC901 LA9242M(

48、CD P/B MODE)Pin No. 1234567891011213141516Voltage (v) 2.57 2.57 2.61 2.61 2.55 2.50 2.55 2.50 2.50 2.57 2.57 2.57 2.50 2.50 2.70 2.52Pin No. 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32Voltage (v) 2.50 2.50 2.50 2.50 2.50 0 2.50 2.50 2.50 2.50 3.01 2.50 2.5 2.2 2.3 0Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48Voltage (v)(play) 0 5.05 0 0.8 0 4.0 0 0.4 2.20 2.47 2.50 2.56 0 2.50 2.61 0Pin No. 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64Voltage (v)(play) 0.05 2.41 4.06 0 0.02 4.92 0 5.05 2.50 2.50 2.35 2.37 2.20 3.