Yamaha-QL-1-Service-Manual-Part-2电路原理图.pdf

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1、101 QL5/QL1 JK Circuit Board to DSP32-CN751 (QL5) to DSP16-CN751 (QL1) Component side（部品側） 2NA-WY63490 1 QL5/QL1 102 LCDC (LCDCOM) Circuit Board ENC (PNCOM) Circuit Board LCDC: 2NA-WY93730 1 ENC: 2NA-ZF60470 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 2 314 ? ? Component side（部品側

2、） Component side（部品側）Pattern side（側） 103 QL5/QL1 PNL (PNCOM) Circuit Board 2NA-ZF60470 1 ? ? Component side（部品側）Pattern side（側） QL5/QL1 1042NA-ZF60450 1 PN16M Circuit Board PN16S Circuit Board (QL5) F F 105 QL5/QL1 Component side（部品側） 2NA-ZF60450 1 Scale: 90/100 F F QL5/QL1 1062NA-ZF60450 1 PN16M: t

3、o PN16S-CN506 PN16S: not installed PN16M: to PNL-CN101 PN16S: not installed to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） PN16S: CH1/2 PN16M: CH17/18 (QL5) CH1/2 (QL1) PN16S: CH3/4 PN16M: CH19/20 (QL5) CH3/4 (QL1) PN16S: CH5/6 PN16M: CH21/22 (QL5

4、) CH5/6 (QL1) PN16S: CH7/8 PN16M: CH23/24 (QL5) CH7/8 (QL1) G G PN16M Circuit Board PN16S Circuit Board (QL5) 107 QL5/QL1 Pattern side（側） 2NA-ZF60450 1 PN16M: to FD1M-CN001 PN16S: to FD2-CN001(QL5) PN16M: to PN2-CN301 PN16S: not installed PN16M: to PNR-CN202 PN16S: not installed PN16M: to PNR-CN201

5、PN16S: not installed PN16M: to ENC-CN401 PN16S: not installed to DSP32-CN603 (QL5) to DSP16-CN603 (QL1) PN16M: to PN2-CN302 PN16S: to PN16M-CN501 not installednot installed to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） to CRYSTAL DISPLAY （液晶 ） PN16S: CH15/16 PN16M: CH31/

6、32 (QL5) CH15/16 (QL1) PN16S: CH9/10 PN16M: CH25/26 (QL5) CH9/10 (QL1) PN16S: CH11/12 PN16M: CH27/28 (QL5) CH11/12 (QL1) PN16S: CH13/14 PN16M: CH29/30 (QL5) CH13/14 (QL1) G G Scale: 90/100 QL5/QL1 108 PNR (PNCOM) Circuit Board 2NA-ZF60470 1 Component side（部品側） 109 QL5/QL1 PNR (PNCOM) Circuit Board 2

7、NA-ZF60470 1 ? ? ? ? Pattern side（側） QL5/QL1 110 FD1M (FDCOM) Circuit Board FD2 (FDCOM) Circuit Board (QL5) FD1M, FD2: 2NA-ZK68030 H H 111 QL5/QL1 FD1M, FD2: 2NA-ZK68030 H H Component side（部品側） Scale: 90/100 QL5/QL1 112 FD1M (FDCOM) Circuit Board FD2 (FDCOM) Circuit Board (QL5) ? ? ? ? ? ? ? ? ? ? ?

8、 ? ? ? ? ? ? ? ? ? ? ? ? I I FD1M, FD2: 2NA-ZK68030 113 QL5/QL1 Pattern side（側） Scale: 90/100 not installed I I FD1M, FD2: 2NA-ZK68030 QL5/QL1 114 Pattern side（側） Component side（部品側） FD1S (FDCOM) Circuit Board ? ? 2NA-ZK68030 115 QL5/QL1 Pattern side（側） Component side（部品側） Component side（部品側） PN2 (P

9、NCOM) Circuit Board USB (LCDCOM) Circuit Board PN2: 2NA-ZF60470 1 USB: 2NA-WY93730 1 to PN16M-CN506 to PN16M-CN301 to CRYSTAL DISPLAY （液晶 ） -MASTER A, B ? ? ? ? ? ? ? QL5/QL1 116 1-4. Initialization For initialization, turn on the power while pressing the B SEL switch and execute “INITIALIZE ALL MEM

10、ORIES”. (See page 155.) 1-5. Fader Calibration For the procedure of calibrating faders, refer to “FADER CALIBRAION”. (See page 159.) 1-6. Color Bar Calibration For the procedure of calibrating the color bar, refer to “COLOR BAR AND CH NAME LCD CALIBRATION”. (See page 161.) 1-7. CPUQL circuit board M

11、RAM Backup Check Check that “Memory Error! Current Memories were Initialized” does not appear on the LCD screen when the power is turned on. 2. ANALOG IN/OUT Characteristic Inspection 2-1. QL5: INPUT 1-16 OMNI OUT 1-16 QL1: INPUT 1-8 OMNI OUT 1-8 Parameters: QL5: Input the analog signal from INPUT (

12、XLR) of CH 1-16 and measure the signal output from OUTPUT of CH 1-16. Assign OMNI IN CH 1-16 to OMNI OUT 1-16. QL1: Input the analog signal from INPUT (XLR) of CH 1-8 and measure the signal output from OUTPUT of CH 1-8. Assign OMNI IN CH 1-8 to OMNI OUT 1-8. A. GAIN MIN 1 Gain 2 Distortion 3 Noise l

13、evel Parameters: Short the CH IN to be measured with 150 . 4 Residual noise (QL5: OMNI OUT 1-16 / QL1: OMNI OUT 1-8) Parameters: QL5: Set INPUT CH 1-16 to OFF. QL1: Set INPUT CH 1-8 to OFF. INSPECTIONS Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz+10 dBu+4 dBu+42 dBu Inpu

14、t FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.01 % or below Permissible Range 88 dBu or below Permissible Range 80 dBu or below 1. Preparation 1-1. Measuring Instruments Use measuring instruments which can measure the inspection items accurately with confi dence. Input impedance of the meas

15、uring device should be 100 k or more. System Two Multi-Volt Meter Filter (12.7 kHz, 6 dB/OCT) Level meter 1-2. Parameters Unless otherwise specified, the parameter settings are as follows. Set the WORD CLOCK to INT 48 kHz. Set the +48 V MASTER to ON. Turn on only the channel being measured. PAN : CE

16、NTER GAIN : MIN FADER : NOMINAL (0 dB) PHONES LEVEL : MAX 0 dBu = 0.775 Vrms 0 dBFS = 0 dB, full scale The oscillator output impedance should be 150 . Measure the noise level with a 12.7 kHz, 6 dB/octave low pass fi lter. (For measurement, use the average values and not effective values.) When using

17、 the Audio Precision Audio Analyzer System Two and 2700 series, set the Detector Reading Rate to 4/ sec. Correct the distortion measurement with an 80 kHz, 18 dB/octave low pass fi lter. For analog output inspection, add or change parameter settings as follows. For maximum output measurement, unless

18、 otherwise specifi ed, output 0 dB from the internal oscillator. Set the analog output loads as follows: OMNI OUT: 600 PHONES: 8 1-3. Updating the Program If the main program is not the latest version, it is required to update it to the latest version. * For the latest version, download the latest p

19、rogram from the YSISS home page and save it in the USB memory device. (1) How to check the version of the main program Press the SET UP button on the LCD screen and the current version will be shown in the “SETUP” page screen. (2) How to update the program For the program updating procedure, refer t

20、o the “UPDATING FIRMWARE”. (See page 154.) QL5/QL1 117 C. PHANTOM VOLTAGE (INPUT 1) With No.2 and No.3 pins of XLR shorted and 10 k load connected between No.2 and No.1 pins, check that the voltage is as follows when the +48 key is turned on. Also, check that discharging starts immediately when the

21、+48 key is turned off. 2-2. QL5: INPUT 17-32 OMNI OUT 1-16 QL1: INPUT 9-16 OMNI OUT 1-8 Parameters: QL5: Input the analog signal from INPUT (XLR) of CH 17-32 and measure the signal output from OUTPUT of CH 17-32. Assign OMNI IN CH 17-32 to OMNI OUT 1-16. QL1: Input the analog signal from INPUT (XLR)

22、 of CH 9-16 and measure the signal output from OUTPUT of CH 9-16. Assign OMNI IN CH 9-16 to OMNI OUT 1-8. A. GAIN MIN 1 Gain 2 Distortion 3 Noise level Parameters: Short the CH IN to be measured with 150 . 4 QL5: CH 1732/QL1: CH 916 level difference Confi rm the range of difference in the gain measu

23、red in item 1 above as follows. 5 Crosstalk between adjacent channels Parameters: Turn on OMNI OUT of only one odd number channel for output, turn off OMNI OUT of other channels and measure the noise level of even number channels next to the odd number channel on both sides. Short INPUT of the even

24、number channels to be measured with 150 . Perform the same check on the even number channels. Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz+10 dBu+4 dBu+42 dBu Input FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.01 % or below Permissible Range 80 dBu or below 5 QL5

25、: CH 116/QL1: CH 18 level difference Confirm the range of difference in the gain measured in item 1 above as follows. 6 Crosstalk between adjacent channels Parameters: Turn on OMNI OUT of only one odd number channel for output, turn off OMNI OUT of other channels and measure the noise level of even

26、number channels next to the odd number channel on both sides. Short INPUT of the even number channels to be measured with 150 . Perform the same check on the even number channels. 7 Maximum output (QL5: OMNI OUT 116 / QL1: OMNI OUT 18) Parameters: Assign only the built-in oscillator to OMNI OUT 1-16

27、 (in case of QL5) or OMNI OUT 1-8 (in case of QL1). B. GAIN MIN 1 Gain (QL5: INPUT 116 / QL1: INPUT 18) 2 Distortion (QL5: INPUT 116 / QL1: INPUT 18) 3 Noise level EIN (QL5: INPUT 116 / QL1: INPUT 18) Parameters: Short the CH IN to be measured with 150 . If the measured value is out of the above per

28、missible range,confi rm that “measured value (Gain at 1kHz) -128” is obtained. 4 Level difference (QL5: CH 116 / QL1: CH 18) Confirm the range of difference in the gain measured in item 1 above as follows. Input FrequencyOutput LevelPermissible RangePermissible Range(Distortion) 1 kHz+24 dBu+240.5 d

29、Bu0.01 % or below Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz62 dBu+4 dBu+42 dBu Input FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.02 % or below Permissible Range Within 2 dB Permissible Range 62 dBu or below Permissible Range Within 1 dB Permissible Range With

30、in 1 dB Input Frequency Output Level (Odd Channel) Permissible Range (Even Channel) 1 kHz+23 dBu57 dBu or below Input Frequency Output Level (Odd Channel) Permissible Range (Even Channel) 1 kHz+23 dBu57 dBu or below Permissible Range DC 33.6 V 36.1 V QL5/QL1 118 B. GAIN MIN 1 Gain (QL5: INPUT 1732 /

31、 QL1: INPUT 916) 2 Distortion (QL5: INPUT 1732 / QL1: INPUT 916) 3 Noise level EIN (QL5: INPUT 1732 / QL1: INPUT 916) Parameters: Short the CH IN to be measured with 150 . If the measured value is out of the above permissible range,confi rm that “measured value (Gain at 1kHz) -128” is obtained. 4 Le

32、vel difference (QL5: CH 1732/QL1: CH 916) Confirm the range of difference in the gain measured in item 1 above as follows. 2-3. PHONES L, R Parameters: Input from INPUT (XLR) of INPUT 1. Assign INPUT 1 to STEREO. Set MONITOR SOURCE to STEREO l/R. Set PHONES LEVEL LINK to OFF. 1 Gain (PHONES L, R) 2

33、Distortion (PHONES L, R) 3 Residual noise (PHONES L, R) Parameters: Turn off STEREO. 4 PHONES L to R level difference Confirm the range of difference in the gain measured in item 1 above as follows. 5 Maximum output (PHONES L, R) Parameters: Assign only the built-in oscillator to STEREO and output 2

34、7 dB from the built-in oscillator. 6 L to R crosstalk Parameters: Set PAN fully to the L side. Perform the same check on the R side. 3. DIGITAL IN / OUT Characteristic Inspection 3-1. DIGITAL OUT Parameters: Use System Two. Input from INPUT 1. A. WORD CLOCK INT48 kHz Parameters: Set WORD CLOCK to IN

35、T 48 kHz. 1 Gain (DIGITAL OUT) 2 f characteristic (DIGITAL OUT) Parameters: 1 kHz is used as the reference of the permissible range. 3 Distortion (DIGITAL OUT) 3-2. PLL Operating Range of WORD CLOCK IN Parameters: Use the System Two. When measuring L channel: QL5: Use OMNI OUT 15 (L). QL1: Use OMNI

36、OUT 7 (L). When measuring R channel: QL5: Use OMNI OUT 16 (R). QL1: Use OMNI OUT 8 (R). Select WC IN for WORD CLOCK. Input from INPUT 1. Use the Dante Controller. With the PC and Dante PRIMARY terminal of the main unit connected with a network cable, click the device label twice. Click the Device Co

37、nfi g tab on the Device View screen. Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz62 dBu+4 dBu+42 dBu Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz0 dBu0 dBu02 dBu Input FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.02 % or below Input F

38、requencyOutput LevelPermissible Range 1 kHz0 dBu0.15 % or below Permissible Range Within 2 dB Permissible Range Within 2 dB Permissible Range 62 dBu or below PHONES LEVELPermissible Range MAX79 dBu or below MIN88 dBu or below Input FrequencyOutput LevelPermissible RangePermissible Range(Distortion)

39、1 kHz+3 dBu+30.5 dBu0.15 % or below Input FrequencyOutput Level (L)Permissible Range 1 kHz+3 dBu56 dBu or below Input FrequencyInput LevelPrescribed Output Level Permissible Range 1 kHz+10 dBu20 dBFS202 dBFS Input FrequencyOutput LevelPermissible Range 1 kHz2 dBFS0.002 % or below Input FrequencyInpu

40、t LevelPermissible Range 20 Hz+10 dBufrom 1.0 dB to +0.5 dB 20 kHz+10 dBufrom 1.0 dB to +0.5 dB QL5/QL1 119 4. Fader Inspection Parameters: Use the SEISAN1.QL5A fi le for the scene data for fader inspection. INSPECTIONS Recall scenes 1 to 4 one by one to operate the fader for the following check. Ju

41、dgment criteria 1: Check that no fader vibrates when stopping at - and +10 dB indications during the above operation. Check that no fader vibrates while the fader is moving (during the fading time) when recalling scenes 3 and 4 and that no fader delays by more than 0.5 second compared with the adjac

42、ent fader. Judgment criteria 2: Check that the fader positions are as follows. 1 When all the faders are at the topmost place. Make sure that all the faders are within 2 mm from the 10 dB indication. 2 When all the faders are at the lowermost place. Make sure that all the faders are within 2 mm from

43、 the - indication. 5. Sound Check Check the following items by listening. q ANALOG INPUT, ANALOG OUTPUT Parameters: Check at INPUT 1 - OMNI OUT 7. Select WORD CLOCK as follows and make sure that the sound is not interrupted while listening for 15 seconds or longer. 1) DANTE 48 kHz 2) DANTE 44.1 kHz

44、w EFFECT function (DSP6 operation check) Parameters: Use the “SEISAN1.QL5A” file as “sound scene data”. Set WORD CLOCK to INT 48 kHz. Put music signals into DANTE input and listen to output from PHONES OUT. To put music signals into DANTE input, use Cubase. For the details, refer to “DANTE sound out

45、put check” on page 170. INSPECTIONS Recall scene 5 (Reverb) and check the signal for at least 15 seconds. A. 48 KHz + 4.1667 % (50 kHz) Parameters: When checking the WORD CLOCK IN, set the oscillator frequency to 50 kHz. Set the Sample Rate column on the Device Confi g screen as follows. Sample Rate

46、: 44 k Pull-up/down: +4.1667 % 1 Distortion (WORD CLOCK IN) B. 44.1 kHz - 4 % (42.336 kHz) Parameters: When checking the WORD CLOCK IN, set the oscillator frequency to 42.336 kHz. Set the Sample Rate column in the Device Confi g screen as follows. Sample Rate: 44 k Pull-up/down: -4 % 1 Distortion (W

47、ORD CLOCK IN) 3-4. Jitter Measurement Parameters: Use System Two. Select Sec, PK. BW: Select 700 Hz to 100 kHz. Use DIGITAL OUT for the inspection. A. WORD CLOCK INT Parameters: Select the WORD CLOCK values shown in the following table. 1 Jitter B. WORD CLOCK EXT Parameters: Set WC IN for WORD CLOCK

48、. For inspection, set the frequency of the oscillator as in the table below. 1 Jitter (WORD CLOCK IN) Input FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.02 % or below Input FrequencyOutput LevelPermissible Range 1 kHz+22 dBu0.02 % or below WORD CLOCKPermissible Range INT44.1 kHz2 nsec or below INT48 kHz2 nsec or below WORD CLOCKPermissible Range 44.1 kHz10 nsec or below 48 kHz10 nsec or below QL5/QL1 120 6. Lamp Voltage Measurem