DOWNLOAD Sony HCD-GX450 (serv.man2) Service Manual ↓ Size: 6.62 MB | Pages: 64 in PDF or view online for FREE

Model
HCD-GX450 (serv.man2)
Pages
64
Size
6.62 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / SUPPLEMENT-2
File
hcd-gx450-sm2.pdf
Date

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]
• 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
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-
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.
[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.
Procedure:
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:
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
button to set the “ALL DISCS” mode, and the PRESET EQ
button to “REPEAT” off.
2) Load the tapes recording use into both decks.
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].
2.
Aging mode in CD section
1) Operation during aging mode
• 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
“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
sequence.
2) Error display
• 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.
Page of 64
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