Sony ZS-S10CP Instrukcja serwisowa - Strona 15

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1. Test Mode

EEPROM CLR

It can clear the EEPROM.

Procedure:

1. While pressing two buttons of [DISPLAY] and [

neously and connect the AC power cord.

2. The EEPROM is cleared, and the message "CLr" is displayed

on the liquid crystal display, then becomes the standby state.

PANEL AND KEY TEST

It can check the liquid crystal display and button.

Procedure:

1. While pressing two buttons of [x] and [DISPLAY] simultane-

ously and connect the AC power cord.

2. It enters the panel and key test mode, and all segments on the

liquid crystal display light up.

3. Each time a button is pressed, the segments on the liquid crys-

tal display corresponding to each button disappear.

4. When all buttons are pressed, all segments on the liquid crystal

display disappear.

5. When the [DISPLAY] button is pressed, becomes the standby

state.

Releasing method:

Disconnect the AC power cord.

CD TEST MODE

It can check the focus error and tracking error.

Procedure:

1. Connect the oscilloscope to TP895 (FEI) and TP814 (GND) on

the MAIN board.

oscilloscope

MAIN board

TP895 (FEI)

TP814 (GND)

–

2. Open the CD lid.

3. While pressing [x] button for around 8 seconds and connect

the AC power cord.

4. It enters the CD test mode, and the message "tEST 1" is dis-

played on the liquid crystal display.

5. When the message "TEST 1" is displayed on the liquid crystal

display, press the [

] button.

6. It enters the focus error test mode, and the message "FE" is

displayed on the liquid crystal display.

7. When the CD disc is placed and CD lid is closed, focus error

starts.

8. Conﬁ rm that oscilloscope waveform is as shown in the ﬁ gure

below.

VOLT/DIV: 200 mV

TIME/DIV: 2 ms

1.2 ± 0.6 Vp-p

9. Disconnect the AC power cord to release the focus error test

mode.

ZS-S10CP

SECTION 3

TEST MODE

10. Connect the oscilloscope to TP805 (TEI) and TP814 (GND) on

the MAIN board.

oscilloscope

MAIN board

] simulta-

TP805 (TEI)

TP814 (GND)

11. Open the CD lid.

12. While pressing [x] button for around 8 seconds and connect

the AC power cord.

13. It enters the CD test mode, and the message "tEST 1" is dis-

played on the liquid crystal display.

14. When the [

] button is pressed, the message on the liquid

crystal display change to "tEST 2".

(When the [

] button is pressed again, the message on the

liquid crystal display change to "tEST 1")

15. It enters the tracking error test mode, and the message "TE" is

displayed on the liquid crystal display.

16. When the CD lid is closed, tracking error starts.

17. Conﬁ rm that oscilloscope waveform is as shown in the ﬁ gure

below.

Releasing method:

Press the [POWER] button or disconnect the AC power cord.

Connection Location:

– MAIN Board (Conductor Side) –

TP805

(TEI)

TUNER SECTION

[AM]

Setting:

Function: RADIO

Band: AM

–

AM RF signal

generator

30% amplitude

modulation by

400 Hz signal

Output level:

as low as possible

[FM]

Setting:

Function: RADIO

Band: FM

VOLT/DIV: 500 mV

TIME/DIV: 2 ms

FM RF signal

generator

1.2 ± 0.6 Vp-p

75 kHz frequency

deviation by

1 kHz signal

Output level:

as low as possible

Note: Perform FM frequency coverage check after removing FM tele-

scopic antenna (ANT1).

no mark: Australian, Chilean, Peruvian and Asian models

AM FREQUENCY COVERAGE CHECK

Check that reading on level meter is the maximum

Conﬁ rmation

TP895

Conﬁ rmation

(FEI)

FM FREQUENCY COVERAGE CHECK

Check that reading on level meter is the maximum

TP814

Conﬁ rmation

(GND)

Conﬁ rmation

SECTION 4

ELECTRICAL CHECKS

0 dB = 1 V

CD SECTION

Note:

1. CD block is basically constructed to operate without adjustment.

2. Use YEDS-18 disc (Part No. 3-702-101-01) unless otherwise indicat-

ed.

3. Use an oscilloscope with more than 10 M impedance.

4. Clean the object lens by an applicator with neutral detergent when the

Put the lead-wire

signal level is low than speciﬁ ed value with the following checks.

antenna close to

5. Check the focus bias check when optical pick-up block is replaced.

level meter

the unit.

FOCUS BIAS CHECK

unit

HP JACK board

jack (J302)

Procedure:

1. Connect the oscilloscope to TP804 (RF) and TP711 (VREF)

on the MAIN board.

2. In the standby state, press the [POWER] button to turn the

power on.

3. Press the [CD] button to turn the CD function.

4. Set the disc (YEDS-18) and press the [

5. Conﬁ rm that oscilloscope waveform is as shown in the ﬁ gure

level meter

MAIN board

below. (eye pattern)

JW101

A good eye pattern means that the diamond shape () in the

0.01 F

center of the waveform can be clearly distinguished.

unit

HP JACK board

jack (J302)

MAIN board

TP814 (GND)

(

): Mexican and Panamanian models

Connection Location:

– MAIN Board (Conductor Side) –

531 (530) kHz

1,602 (1,710) kHz

JW101

87.5 MHz

108 MHz

ZS-S10CP

oscilloscope

MAIN board

TP804 (RF)

TP711 (VREF)

–

] button to playback.

VOLT/DIV: 200 mV

TIME/DIV: 500 ns

level: 1.5 Vp-p

TP804

TP711

(RF)

(VREF)

TP814

(GND)