HCD-GZX33D, HCD-GZX55D, HCD-GZX88D - Sony Audio Service Manual (repair manual). Page 15

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HCD-GZX33D/GZX55D/GZX88D
15
[PROTECT KIND CHECK TEST MODE]
  This mode is used to check types of protect occurred during 
protector on.
Procedure:
1.  During protection on, fl uorescent indicator tube shows 
blinking message “PROTECT EXX” where “EXX” represent 
the error code.
2. Press 
[  ] button & [PRESET– –] button simultaneously.
3.  Fluorescent indicator tube display will toggle between 
“PROTECT” message & protector kind message display. 
Below table explains on protector kind.
Error 
Code 
Protector Message
Description
E01
“AMP OCP”
The over current condition to 
MOSFET occurs by defect 
of MOSFET or defect of PS 
output line.
E03
“POWER SUPPLY”
Defect of power supply circuit 
to AMP
E04
“DC DETECT”
DC appears in SP terminal 
by defect of AMP IC and 
MOSFET.
E05
“THERMISTOR”
Unusual heat up of MOSFET 
by improper assembly of heat 
sink, destruction of MOSFET 
etc.
E06
“FAN BLOCK”
Defect of DC FAN and DC 
FAN driver circuit
To release from this mode:
Press [] button & [PRESET– –] button simultaneously again 
or unplug & re-plug in the power cord.
If speaker does not have output even if the set status is not in 
PROTECT mode, the following defect might be possible:
Defects
Possible cause
RESET defect
Reset signal status from micom is not ‘H’.
If the PROTECT mode is “POWER SUPPLY”, there is 
 
possibility of unusual power supply of any of the AMP IC or 
Pre-amplifi er.
[MODEL & DEST WRITE MODE]
 
This mode is used to set software model & destination.
  This mode is only available when no permanent model & 
destination is stored.
Procedure:
1.  Press [ENTER] button & [FOOTBALL] button simultaneously 
and hold for 5 seconds.
2.  Fluorescent indicator tube display will show “M XXXXX”.
3. Press 
[+ PRESET+] / [PRESET– –] button to select the 
model based on the set’s model.
Product Code
F. Tube display
HCD-GZX33D
“M GSXD3”
HCD-GZX55D
“M GSXD5”
HCD-GZX88D
“M GSXD8”
4.  Press [ENTER] button.
5.  Fluorescent indicator tube display will show “D XXXXX”.
6. Press 
[+ PRESET+] / [PRESET– –] button to select the 
destination based on the set’s country.
Area Code
Country
F. Tube display
J1
Japan
“D J”
JE1
Tourist
“D JE”
U2/CA2
America, Canada
“D NA”
CEL/CE1/
CE2
Europe (general)
“D CE2”
CEK
U.K.
“D CEK”
RU1/RU3
Russia
“D RU”
AU1
Australia
“D AU”
CN1
China
“D CN”
E12
India, Pakistan, Morocco
“D E12”
E3/E93/
SA2/E15
Middle East, Africa 
(South Africa), Iran
“D E3”
E4
Africa
“D E12”
EA3
Saudi Arabia
“D EA3”
HK1/
HK2/PL1/
SP1/SP2/
SP6/TH1
Hong Kong, Philippines, 
Singapore, Malaysia, 
Thailand
“D ASIA”
KR2
Korea
“D KR”
TW2
Taiwan
“D TW”
E2, E32, 
E51, AR2
Latin America (general), 
Chile, Peru, Argentina
“D LATIN”
BR1
Brazil
“D BR”
MX2, 
MX4
Mexico
“D MX”
7.  Press [ENTER] button to confi rm the selection.
8.  “RESET” appears on the fl uorescent indicator tube. After that, 
the fl uorescent indicator tube becomes blank for a while, and 
the system is reset.
9.  Mode in [PANEL TEST MODE] again to confi rm on the 
model & destination.
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