Sony MZ-R701 Panduan Servis - Halaman 12

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Juga untuk Sony MZ-R701: Garansi Terbatas (1 halaman)

Halaman Cetak

MZ-R701/R701DPC

4-1. Outline

• This set provides the Overall adjustment mode that allows CD

(PB) and MO (REC/PB) disk to be automatically adjusted when

in the test mode. In this overall adjustment mode, the disc is

discriminate between CD and MO, and each adjustment is

automatically executed in order. If a fault is found, the system

displays its location. Also, the manual mode allows each

individual adjustment to be automatically adjusted.

• Operation in the test mode is performed with the set. A key

having no particular description in the text, indicates a set key.

• For the LCD display, the LCD on the set is shown.

4-2. Setting Method of Test Mode

There are two different methods to set the test mode:

1 Short SL801 (TEST) on the MAIN board with a solder bridge

(connect pin 3 of IC801 to the ground). Then, turn on the

power.

MAIN BOARD (SIDE B)

2 In the normal mode, turn on the

[VOL --]

ing the

key press the following order:

SECTION 4

TEST MODE

C821

C815

X801

AP828

SL801

(TEST)

AP817

[HOLD]

switch. While press-

4-3. Operation in Setting the Test Mode

• When the test mode becomes active, first the display check mode

is selected.

• Other mode can be selected from the display check mode.

• When the test mode is set, the LCD repeats the following dis-

play.

This set LCD display

All lit

BASS

LP24

MONO

All off

Microcomputer

Ver 1.300

version

display

• When the

key is pressed and hold down, the display at that

time is held so that display can be checked.

Caution: On the set having the microcomputer version 1.000,

some adjusted values were set in the manual mode at

the shipment, but these data will be cleared when the

NV is reset. Therefore, on the set having the micro-

computer version 1.000, change the adjusted values

following the Change of Adjusted Values immediately

after the NV was reset (see page 18).

4-4. Releasing the Test Mode

For test mode set with the method 1:

Turn off the power and open the solder bridge on SL801 (TEST)

on the MAIN board.

Note: Remove the solders completely. Remaining could be shorted

with the chassis, etc.

For test mode set with the method 2:

Turn off the power.

Note: If electrical adjustment (see page 18) has not been finished

completely, always start in the test mode. (The set cannot

start in normal mode)

88: 8 8

1 SHUFF PGM

SYNC

REC

REC DATE

REMAIN

00 5