Test Mode - Sony HCD-EA20 Service Manual

HCD-EA20
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3 7 63 1515 0
[KEY TEST]
* Key check and volume check.
Procedure:
1. Press the POWER button to turn the set on.
2. To enter the test mode, press three buttons of x , A and
FUNCTION simultaneously.
3. In the key check mode, the fluorecent indicator displays
"KEY00 VOL0". Each time a button is pressed, "KEY**" value
increases. However, once a button is pressed, it is no longer
taken into account.
4. "VOL*" value increases like 0, 1, 2, 3, ... if rotating the
VOLUME knob clockwise, or it decreases like 0, 9, 8, 7, ... if
rotating counter-clockwise.
To exit from this mode, press three buttons x , A and
5.
FUNCTION simultaneously.
[VERSION DISPLAY MODE]
* The software version is displayed.
Procedure:
Press three buttons of X , NEXT > and FUNCTION
1.
simultaneously.
2. The microcomputer version and destination are displayed.
3. Press the DISPLAY button on the remote commander. The
STR version is displayed.
4. Press the DISPLAY button on the remote commander. The
DVD version is displayed.
5. Each time the DISPLAY button on the remote commander is
pressed, the display changes in the order of microcomputer
version/destination, STR and DVD.
6. To exit from this mode, press the POWER button.
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L 13942296513
[DISPLAY TEST MODE]
* Fluorescent segments are tested when this test is activated.
Procedure:
1. Press three buttons of X , . PREV and FUNCTION
simultaneously.
2. All segments are turned on.
PGM JPEG V CD MP3 TITLE TRAK ALBM CHAP
ALBM AUTO
NX
SHUF MONO
REP 1 TUNED STEREO
3. When the DISPLAY button on the remote commander is
pressed, all segments are turned off.
4. Press the DISPLAY button on the remote commander, the
display will light up as follows and confirm the display.
PGM V MP3 TRAK CHAP
ALBM
N
SHUF
REP TUNED
5. Press the DISPLAY button on the remote commander, the
display will light up as follows and confirm the display.
JPEG CD TITLE ALBM
AUTO
X
MONO
1 STEREO
www
6. Every pressing of the DISPLAY button on the remote
commander turns on each segments in the same order.
.
7. To exit from this mode, press the POWER button.
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SECTION 4

TEST MODE

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PBC NIGHT dts II
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MULTI NTSC DDSG PRO LOGIC
a DIGITAL
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[AMP TEST MODE]
* SOUND FIELD and volume function is tested.
Note: In advance of Amp test mode SOUND FIELD is set except AFD
AUTO.
Procedure:
1. Press three buttons of
simultaneously.
2. Every time the SOUND FIELD + or SOUND FIELD - button
on the remote commander is pressed, the following items
changes in the order as shown below.
"SWAP F2S" (Lch/Rch inputs are output to both FRONT Lch/
Rch and SURR Lch/Rch.)
"SWAP F2CW" (Lch input is output to CENTER and Rch
input is output to WOOFER.)
"SWAP FLL" (Lch or Rch input is output to all speakers.)
"EQ MIN" (Bass and treble equalizers are set to -6dB.)
"EQ MAX" (Bass and treble equalizers are set to +6dB.)
"SRAM CHECK" (Not for service)
3. In the case of headphone inserted, every time the SOUND
FIELD + or SOUND FIELD - button on the remote
commander is pressed, the following items changes in the order
as shown below.
"HP 2CH"
Q Q
3 6 7 1 3 1 5
"HP SURR"
4. Each time the DDSG button on the remote commander is
pressed, DDSG will change to on or off.
5. Each time the NIGHT MODE button on the remote
commander is pressed, NIGHT MODE will change to on or
off.
6. When the VOLUME knob is turned clockwise or the VOL +
button on the remote commander is pressed, volume goes from
"VOLUME MIN" to "VOLUME 21".
7. When the VOLUME knob is turned clockwise or the VOL +
button on the remote commander is pressed again, volume goes
to "VOLUME MAX".
8. When the VOLUME knob is turned counter-clockwise or the
VOL - button on the remote commander is pressed, volume
goes to "VOLUME 21".
9. When the VOLUME knob is turned counter-clockwise or the
VOL - button on the remote commander is pressed again,
volume goes to "VOLUME MIN".
10. To exit from this mode, press the POWER button.
[FORCED RESET MODE]
Procedure:
Press three buttons of X , FUNCTION and A simultaneously.
1.
2. The set is turned off and microcomputer is reset.
[DVD REPEAT 5 TIMES LIMIT RELEASE MODE]
Procedure:
1. Set the FUNCTION to DVD.
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2. Press three buttons of x , NEXT > and FUNCTION
simultaneously.
.
3. DVD repeat 5 times limit is released.
9 4 2 8
x , NEXT > and H
0 5 8 2 9 9 4 2 8
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9 9
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