Yamaha MDX-9 Service Manual download pdf (Page 10)

MDX-E100

TEST MODE

1. How to set to the test mode

1) Press the POWER button while pressing the INPUT button and the STOP button.

Version of microprocessor is displayed for about 1 second, as shown below.

t s m 1 3 * * e * *

Version of EEPROM protect data (from 01)

Version of microprocessor ROM (from 01)

“EJECT” on display

2) Load either a disc for reproduction or a disc for recording.

“AUT YOBI” on display

This completes setting to the test mode.

2. How to set to each mode

Every time the DISPLAY button (REMOCON) is pressed, the mode changes. (For operation of each mode, refer to the

section describing each mode.)

Preparation before Adjustment

● Test disc

->AUTO pre-adjustment -> AUTO adjustment -> RESULT preparation -> RESULT -> MANUAL pre-adjustment ->

MANUAL adjustment -> EEPROM setting

● Extension cable

(see connection diagram on page 14.)

High reflecting disc TDYS1 (SONY) [for reproduction] (P/No. TX945850)

Low reflecting disc Commercially available mini disc for recording

Low reflecting disc MMD-318 [for pre-adjustment] (P/No. AAX04890)

Type Test disc

1. Extension P.C.B. for servicing TX946230

2. 2-pin extension connector for servicing TX946200

3. 6-pin extension connector for servicing TX946210

4. 5-pin flat cable for servicing TX946190

5. 28-pin flat cable for servicing TX946220

Type Part No.

3. How to cancel test mode

Caution) The AUTO pre-adjustment and AUTO adjustment modes are used for adjustment during servicing. Other modes

are used when checking the specific measured values and adjusted values or when changing the set value and the

adjusted value. Note that use of other modes will rewrite RAM and EEPROM.

1) Finish the AUTO pre-adjustment and AUTO adjustment. ( “COMPLETE” appears on the display)

2) Press the REC/PAUSE button (REMOCON). ( “TEST END” appears on the display)

3) Eject the disc by pressing the EJECT button.

4) Turn off the power.

● When using a new combination of a mechanical pickup and an MD P.C.B. after a repair or for some other

reason, make sure to set to the TEST mode and perform AUTO pre-adjustment and AUTO adjustment accord-

ing to the following procedure.

1) Set to the TEST mode and perform AUTO pre-adjustment and AUTO adjustment.

2) Cancel the TEST mode by pressing the REC/PAUSE button (REMOCON).

(Writing into EEPROM starts from here.)

3) Eject the disc by pressing the EJECT button.

4) Turn off the power.

■ ADJUSTMENT & TEST MODE

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 58 59

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Yamaha MDX-9 Service Manual Page 10

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