Yamaha GX-500 Service Manual Page 37
- Page / 103
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
1. Procedure to change the EE-PROM and write the
initial value of the microprocessor into EE-PROM
(1) Replace the EE-PROM.
(2) Refer to the latest “List of EE-PROM contents”.
(3) Press the STANDBY/ON button while pressing the
REC PAUSE(MD) button and the w/d(CD) button to
start the test mode.
(4) Version on display
Version of EEPROM protect data (from 01)
t s m 1 3 * * e * *
Version of microprocessor ROM (from 01)
(5) Load a disc.
[ AUT YOBI ]
(6) Press the INPUT w button 6 times.
[ EEPROM SET ]
(7) Perform the procedure to have “EE-PROM setting
mode transition diagram” displayed, compare it with
“List of EE-PROM contents” and set to “List of EE-
PROM contents” by using the jog dial.
(8) Set the temperature standard value.
(Refer to “Procedure to set the temperature standard
value”.)
(9) Use the same settings as “List of EE-PROM con-
tents” for all.
10)Set to the TEST mode and perform AUTO pre-
adjustment and AUTO adjustment.
11)Cancel the TEST mode by pressing the a(MD)
button. (Writing into EEPROM starts from here.)
2. Procedure to set the temperature standard value
(This setting should be performed within the room
temperature range of 21 ˚C ~ 29 ˚C.)
(1) Have the AUTO pre-adjustment mode menu dis-
played.
[ AUT YOBI ]
(2) Compensate the temperature to be suitable for the
ambient temperature, referring to the table below.
Example : When the ambient temperature is 22 ˚C
and the temperature measured value is 7A
H
Temperature set value = 7AH – 01H
= 79H
* When the measured temperature deflects between 2
values, use the smaller one as the measured value
(79
H if measured values are 7AH and 79H).
(3) Press the MD r button 6 times.
[ EEPROM SET ]
(4) Press the REC/PAUSE(MD) button 7 times.
[ Focus ]
Ambient temperature Compensation value
+ 21.0
˚C ~ + 23.2 ˚C
– 01H
+ 23.3
˚C ~ + 26.8 ˚C
± 0H
+ 26.9
˚C ~ + 23.7 ˚C
+ 01H
PROCEDURE TO WRITE DATA INTO EE-PROM (IC1402)
● Focus setting
Item on display Set value
FG ❍ ❍ DA H
FF1 ❍ ❍ 70 H
FF2 ❍ ❍ E0 H
FZHLEV ❍ ❍ ED H
FOKLEVn ❍ ❍ 08 H
FOKLEVf ❍ ❍ 08 H
FOKLPFn ❍ ❍ 00 H
FOKPFVf ❍ ❍ 88 H
WAITf ❍ ❍ 90 H
● Spin setting
Item on display Set value
SPG ❍ ❍ 20 H
SPG-in ❍ ❍ B8 H
SPG-mid ❍ ❍ 95 H
SPG-out ❍ ❍ 79 H
SP1 ❍ ❍ 10 H
SP2 ❍ ❍ 87 H
SP3 ❍ ❍ E3 H
SP4 ❍ ❍ E3 H
SP5 ❍ ❍ 10 H
SPDLIM ❍ ❍ 7F H
Item on display Set value
TG ❍ ❍ 6B H
TF1 ❍ ❍ 6B H
TF2 ❍ ❍ E0 H
SVCNT4 ❍ ❍ 00 H
TRBLVo ❍ ❍ 50 H
TRBLVt ❍ ❍ 54 H
TRkLVo ❍ ❍ 50 H
TRkLVt ❍ ❍ 2E H
TDPWo ❍ ❍ 89 H
TDPWt ❍ ❍ 1A H
SLCTo ❍ ❍ 00 H
SLCTt ❍ ❍ 40 H
SLCTm ❍ ❍ 53 H
TCRSCIP ❍ ❍ 16 H
COTLVP ❍ ❍ 0A H
COTLVr ❍ ❍ 1C H
WAITm ❍ ❍ FF H
● Tracking setting
LIST OF EE-PROM CONTENTS
(5) Press the MD r button 4 times.
[ Temp ]
(6) Press the REC/PAUSE(MD) button.
[ TEMP ❍ ❍ ◆ ◆ ]
❍ ❍ : Temperature measured value
◆ ◆ : Temperature set value
(7) Adjust the temperature set value to the value ob-
tained as described above by using the jog dial.
(8) Press the CHARACTER button.
[ EEPROM SET ]
36
- MINI COMPONENT SYSTEM 1
- ■ TO SERVICE PERSONNEL 2
- ■ FRONT PANELS 4
- ■ REAR PANELS 5
- ■ SPECIFICATIONS 6
- ■ INTERNAL VIEW 7
- P.C.B. Main (2) 11
- P.C.B. Input 11
- P.C.B. Main (1) 11
- Friction 12
- Disc Table 13
- P.C.B. MD 15
- Mechanism SW P.C.B 16
- Loading Motor 16
- Sled motor 16
- Turn Table 17
- Spindle Motor 17
- Optical Pickup Head 17
- MD Guide (B) 17
- ■ VOLUME RANGE 18
- ■ SYSTEM CONTROL CHECK 18
- ■ TEST MODE 19
- ■ SYSTEM TEST MODE 19
- ■ RECEIVER TEST MODE 20
- ■ TAPE TEST MODE 21
- ■ CD TEST MODE 22
- ■ CD ERROR MESSAGES 23
- ■ CD STANDARD OPERATION CHART 24
- ● OPEN operation 26
- ● DOWN operation 26
- ■ TAPE ADJUSTMENTS 28
- “MECHANICAL ADJUSTMENT” 29
- “ELECTRICAL ADJUSTMENT” 29
- < Recording section > 30
- MD TEST MODE 31
- 2. AUTO adjustment mode 33
- 8. TEST-PLAY mode 33
- MECHANISM ADJUSTMENT 36
- ■ MD ERROR DISPLAY 39
- Mechanism Error 40
- ■ MD TROUBLESHOOTING 41
- ■ IC DATA 46
- ATRAC Encoder/Decoder 47
- MD System Microprocessor 49
- IC11 : M38199EF [P.C.B. CD] 55
- -COM (CD CPU) 55
- IC8 : M38199EF [P.C.B. INPUT] 58
- -COM (SYSTEM CPU) 58
- PATTERN AREA 60
- ■ BLOCK DIAGRAM 61
- POWER OFF^STANDBY 64
- Note : y ~ o 65
- P.C.B. TUNER 66
- (Lead Type Device) 66
- P.C.B. CD (Lead Type Device) 67
- FROM : INPUT (1) 68
- P. C. B. INPUT ( 2 ) 69
- TO: OPERATION(3) 70
- P.C.B. MAIN(1) 71
- ■ PIN CONNECTION DIAGRAM 72
- ■ SCHEMATIC DIAGRAM (MD MAIN) 73
- ■ SCHEMATIC DIAGRAM (MD) 74
- ■ SCHEMATIC DIAGRAM (CD) 75
- ■ SCHEMATIC DIAGRAM (INPUT) 76
- YMERSION 77
- ■ SCHEMATIC DIAGRAM (MAIN) 78
- ■ SCHEMATIC DIAGRAM (TUNER) 79
- PARTS LIST 80
- P.C.B. CD 81
- P.C.B. CD & MD 82
- P.C.B. INPUT 83
- P.C.B. INPUT & MAIN 85
- P.C.B. MAIN & OPERATION 86
- P.C.B. OPERATION & TUNER 87
- P.C.B. MD MAIN 89
- P.C.B. MD MAIN & OTHER 91
- CHIP RESISTOR 92
- ■ MECHANICAL PARTS 94
- New Parts 95
- GREASE APPLICATION DIAGRAM 99
- (MD Recorder) 99
- ● Grease to be supplied 100
- REMOTE CONTROL TRANSMITTER 101
- 1/4W Type 102
- 1/6W Type 102
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