Sony HCD-GX450 (serv.man2) Service Manual ▷ View online
10
HCD-GX450
1-14. DRIVER BOARD, SW BOARD
1-15. OPTICAL PICK-UP (KSM-213DCP/C2NP)
2
connector
4p (CN703)
4
DRIVER board
6
SW board
3
board to board
1
two screws
(+BTTP (M2.6))
5
screw
(+BTTP (M2.6))
CN702
CN742
5
two coil springs
(insulator)
8
two coil springs
(insulator)
6
two insulators
9
two insulators
qa
screw (+BVTP 2.6x 8)
7
two screws
(BVTT M2.6)
3
screw
(BVTT M2.6)
2
holder (213) ASSY
qs
Remove the four solderings of motor.
qd
CN101 (flat type)
qf
BD board
qg
optical pick-up
(KSM-213DCP/C2NP)
1
floating screw
(+PTPWH M2.6)
4
floating screw
(+PTPWH M2.6)
0
11
HCD-GX450
1-16. SENSOR BOARD
1-17. MOTOR (TB) BOARD
2
tray
3
belt (table)
5
pulley (table)
8
screw
(+BTTP (M2.6))
0
SENSOR board
7
gear (geneva)
9
connector
(CN731)
1
floating screw
(+PTPWH M2.6)
6
floating screw
(+PTPWH M2.6)
4
floating screw
(+PTPWH M2.6)
6
Remove the two solderings of motor.
8
MOTOR (TB) board
7
table motor assy (M741)
5
two screws
(+BTTP (M2.6))
4
3
wire (flat type) 5 core (CN742)
1
stopper
2
stopper
12
HCD-GX450
1-18. MOTOR (LD) BOARD
4
Remove the two solderings of motor.
3
MOTOR (LD) board
1
belt (loading)
5
loading motor assy (M751)
2
two screws
(+BTTP (M2.6))
13
HCD-GX450
SECTION 2
TEST MODE
[Change-over of AM Tuner Step between 9 kHz and
10 kHz]
10 kHz]
• A step of AM channels can be changed over between 9 kHz and
10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “AM”.
3. Press ?/1 button to turn the set OFF.
4. Press PLAY MODE/TUNING MODE and ?/1 buttons si-
4. Press PLAY MODE/TUNING MODE and ?/1 buttons si-
multaneously, and the display of fluorescent indicator tube
changes to “AM 9 k STEP” or “AM 10 k STEP”, and thus the
channel step is changed over.
changes to “AM 9 k STEP” or “AM 10 k STEP”, and thus the
channel step is changed over.
[Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
the set to the customer.
Procedure:
1. Press three buttons x , PLAY MODE/TUNING MODE ,
1. Press three buttons x , PLAY MODE/TUNING MODE ,
and DISC 1 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[Aging Mode]
This mode can be used for operation check of CD section and tape
deck section.
• If an error occurred:
deck section.
• If an error occurred:
The aging operation stops and is displayed status.
• If no error occurs:
The aging operation continues repeatedly.
1.
Operating method of Aging Mode
Press ?/1 button to turn the set ON and select “CD” of the function.
1) Set three discs in tray. Press the PLAY MODE/TUNING MODE
1) Set three discs in tray. Press the PLAY MODE/TUNING MODE
button to set the “ALL DISCS” mode, and the PRESET EQ
button to “REPEAT” off.
button to “REPEAT” off.
2) Load the tapes recording use into both decks.
3) Press three buttons x , PLAY MODE/TUNING MODE ,
3) Press three buttons x , PLAY MODE/TUNING MODE ,
and EX-CHANGE simultaneously.
4) Aging operations of CD and tape are started at the same time.
5) To exit the aging mode, perform [Cold Reset].
5) To exit the aging mode, perform [Cold Reset].
2.
Aging mode in CD section
1) Operation during aging mode
• In the agining mode ,the program is excuted in the following
• In the agining mode ,the program is excuted in the following
sequence.
(1) The disc tray opens and closes.
(2) The disc tray turns to select a disc 3.
(3) The pick-up accesses to the first track, and plays 3 seconds.
(4) The pick-up accesses to the last track, and plays 3 seconds.
(5) The disc tray opens and closes.
(6) The disc tray turns to select a disc 1.
(7) The same operation starts like step (3).
(8) After a disc 1 aging operation, a disc 2 is selected.
(9) When an aging operation of a disc 3 is completed, the display
(2) The disc tray turns to select a disc 3.
(3) The pick-up accesses to the first track, and plays 3 seconds.
(4) The pick-up accesses to the last track, and plays 3 seconds.
(5) The disc tray opens and closes.
(6) The disc tray turns to select a disc 1.
(7) The same operation starts like step (3).
(8) After a disc 1 aging operation, a disc 2 is selected.
(9) When an aging operation of a disc 3 is completed, the display
“AGING
∗∗∗∗
” value increases.
(10) If no error occurs, the aging operation continues repeatedly.
2) Error display
Step
1
2
3
4
5
6
7
8
9
10
11
12
Operation
Rewind the TAPE A
Rewind the TAPE B
Play the TAPE A (1 minute)
Stop the TAPE A (1 second)
Play the TAPE A (3 minutes)
Rewind(AMS) the TAPE A
F.F.(AMS) the TAPE A
Play the TAPE B (1 minute)
Stop the TAPE B (1 second)
Record the TAPE B (3 minutes)
Rewind(AMS) the TAPE B
F.F.(AMS) the TAPE B
Display
TAPE
AAG-1
TAPE
BAG-2
TAPE
AAG-2
TAPE
AAG-3
TAPE
AAG-4
TAPE
AAG-5
TAPE
AAG-6
TAPE
BAG-2
TAPE
BAG-3
TAPE
BAG-4
TAPE
BAG-5
TAPE
BAG-6
Disc error
Display
Error
E00D01022
Focus error (No disc)
E00D02022
Sub Q error (Focus is good)
E00D02023
TOC reading error
E00D02014
Access error (Unable within regular time)
Mechanism error
Display
Error
E00M__E_0
Error during opening tray
E00M__C_2
EX-CHANGE disc error
E00M__D_0
Error during closing tray
E00M__F_3
EX-OPEN error
E00M__D_5
EX-CLOSE error
E00M__C_2
Chuck-up error
E00M__C_3
Unchucking error
3.
Aging mode in Tape Deck section
1) Operation during aging mode
• In the agining mode, the program is excuted in the following
• In the agining mode, the program is excuted in the following
sequence.
2) Error display
• If error occurred, the display remains like “TAPE BAG-2”.
• If error occurred, the display remains like “TAPE BAG-2”.
4.
Exiting from the aging mode
• Be sure to perform Cold Reset to exit from the aging mode.
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