Sony HCD-GTR88 Service Manual page 14

HCD-GTR88
CD SHIP MODE (WITHOUT MEMORY CLEAR)
This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.
Procedure:
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1. Press [ STANDBY] button to turn on the system.
2. Select CD function.
3. Press [DISC SKIP/EX-CHANGE] button and [
BY] button simultaneously. The system turns off automati-
cally.
4. After the "STANDBY" blinking display fi nishes, a message
"MECHA LOCK" is displayed on the fl uorescent indicator
tube and the CD ship mode is set.
CD TRAY LOCK MODE
This mode let you lock the disc tray. When this mode is activat-
ed, the disc tray will not open when [Z OPEN/CLOSE] button
or [DISC SKIP/EX-CHANGE] button is pressed. The message
"LOCKED" will be displayed on the fl uorescent indicator tube.
This mode only applied when there is disc(s) on the tray.
Procedure:
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1. Press [ STANDBY] button to turn on the system.
2. Select CD function.
3. Press [x] button and [Z OPEN/CLOSE] button simultane-
ously and hold down until "LOCKED" or "UNLOCKED" dis-
played on the fl uorescent indicator tube (around 5 seconds).
FACTORY PRESET
This mode is use to load all the factory use preset frequencies
into FM 1-FM 20 and AM 1-AM 10. Originally, frequency of FM
1-FM 20 and AM 1-AM10 are set to the minimum frequency.
Procedure:
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1. Press [ STANDBY] button to turn on the system.
2. Press [EQ BAND/SURROUND], [x] button, and [DISC 1]
button simultaneously and the message "FACTORY" appears
on the fl uorescent indicator tube. The function is changed to
TUNER automatically.
VACS DISPLAY
This mode is used to check the VACS level.
Procedure:
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1. Press [ STANDBY] button to turn on the system.
2. Press [ERASE], [x] button and [ENTER] button simultane-
ously.
3. The fl uorescent indicator tube displays "V0AP0".
"V" represents Conventional VACS (Triggered by signal level)
"AP" represents AP VACS (Abuse Protection Variable Attenu-
ation Control System)
• To release from VACS display mode
To release from this mode, do the step (2) again.
METER SWITCH TOUCH COUNT DISPLAY
This mode is used to display the total count of meter pointer touch
initial switch and max switch.
Procedure:
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1. Press [ STANDBY] button to turn on the system.
2. Press [x] button, [ENTER] button and [DISPLAY] button si-
multaneously.
3. The fl uorescent indicator tube displays "IxxxxxMyyyyy".
"I" represents the Initial Switch touch.
"xxxxx" represents the total count of Initial Switch touch.
(Maximum Value of "xxxxx" = 65535)
"M" represents the Max Switch touch.
"yyyyy" represents the total count of Max Switch touch.
(Maximum Value of "yyyyy" = 65535)
• To release from Meter Switch Touch Count Display Mode.
To release from this mode, do the step (2) again.
The fl uorescent indicator tube displays "MODE OUT".
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METER TEST MODE
This mode is used to check the meter device.
Procedure:
1. Press [
2. Press [x] button, [ENTER] button and [METER MODE] but-
ton simultaneously.
3. Meter Backlight LEDs, Meter Pointer LEDs, Power Illumina-
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STAND- tor LEDs and fl uorescent indicator tube are lighted up.
4. When you want to perform count total step from Initial Switch
to Max Switch operation mode, press [M/>/TUNING +]
button. The meter pointer will move from Initial Switch to
Max Switch and fi nally move back to the middle position. The
total step count information appears on the fl uorescent indica-
tor tube. "xxx STP yy" is shown.
"xxx" represents the total step.
(Value of "xxx" should between 430 steps to 470 steps)
"yy" represents the status of total step count.
(If total step between 430 steps to 470 steps, "yy" is OK, Else
"yy" is NG)
5. When you want to perform count total step from Max Switch
to Initial Switch operation mode, press [m/./TUNING –]
button. The meter pointer will move from Max Switch to Ini-
tial Switch and fi nally move back to the middle position. The
total step count information appears on the fl uorescent indica-
tor tube. "xxx STP yy" is shown.
"xxx" represents the total step.
(Value of "xxx" should between 430 steps to 470 steps)
"yy" represents the status of total step count.
(If total step between 430 steps to 470 steps, "yy" is OK, else
"yy" is NG)
• To release from Meter Test Mode.
To release from this mode, do the step (2) again.
The fl uorescent indicator tube displays "TST MODE OUT".
CDM AGING MODE
This mode is used to display the total count of all disc playing.
Procedure:
1. Press [
2. Select CD function and All DISC play mode.
3. Put discs on all trays and close the tray.
4. Press [GROOVE] button, [x] button and [RETURN] button
simultaneously.
5. The fl uorescent indicator tube displays Aging Display "AG
xxxx/yyyy".
"xxxx" represents the error counter
(Maximum Value of "xxxx" = 9999)
"yyyyy" represents the cycle counter
(Maximum Value of "yyyy" = 9999)
6. Press [m/./TUNING –] or [M/>/TUNING +] to
search for Aging History Error Display
The fl uorescent indicator tube displays "Mx E1E2E3E4".
x: error history number
E1: Loading sequence JCP high
E2: Loading sequence JCP low
E3: Loading operation JCP
E4: Cam position operation JCP
7. Press [RETURN] to Aging Display
• To release from CDM Aging Mode.
To release from this mode, press [
perform COLD RESET operation.
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STANDBY] button to turn on the system.
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STANDBY] button to turn on the system.
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STANDBY] button or