Sony SCD-XA777ES Service Manual ▷ View online
5
SCD-XA777ES
HOW TO OPEN THE DISC TABLE WHEN POWER SWITCH TURNS OFF
OPTICAL PICK-UP SERVICE POSITION
Place the insulator on the MAIN board, then install the base unit (DVBU4B) on it as shown in the figure.
disc table
loading panel assy
tapering driver
cover (CAM)
2
Draw out the loading panel assy
in the direction of arrow
in the direction of arrow
B
.
1
Insert a tapering driver in the hole
at the bottom of the unit,
turn the cover (CAM) fully in the
direction of arrow
at the bottom of the unit,
turn the cover (CAM) fully in the
direction of arrow
A
.
B
A
base unit
(DVBU4B)
(DVBU4B)
MAIN board
insulator
6
SCD-XA777ES
Note:
Follow the disassembly procedure in the numerical order given.
D-POWER/POWER BOARDS AND RF BOARD SERVICE POSITION
1
Remove the case.
2
Turn over the set.
4
two bottom plates
3
four screws (3
×
8)
3
eight screws (3
×
8)
D-POWER board
POWER board
INSTALLATION TWO WIRES (FLAT TYPE) (25/35 CORE)
Note: When the wire (flat type) (35 core) is disconnected
from the RF board, then it is again connected,
disconnect the wire (flat type) (25 core) once,
and reconnect the wire (flat type) (35 core) first.
disconnect the wire (flat type) (25 core) once,
and reconnect the wire (flat type) (35 core) first.
wire (flat type) (35 core)
wire (flat type) (25 core)
RF board
– BOTTOM VIEW –
7
SCD-XA777ES
MAIN BOARD SERVICE POSITION
In checking the MAIN board, prepare jig (extension cable J-2501-205-A: 1.50 mm Pitch, 7 cores, Length 300 mm/
J-2501-086-A: 1.00 mm Pitch, 19 cores, Length 300 mm).
J-2501-086-A: 1.00 mm Pitch, 19 cores, Length 300 mm).
Note:
Be sure to ground the MAIN board with a lead wire when checking it.
lead wire
MAIN board
MOTHER board
connect jig (extension cable
J-2501-086-A) to the MAIN
board (CN901/902) and MOTHER
board (CN301/302).
J-2501-086-A) to the MAIN
board (CN901/902) and MOTHER
board (CN301/302).
connect jig (extension cable
J-2501-205-A) to the MAIN
board (CN903) and PANEL
board (CN1002).
J-2501-205-A) to the MAIN
board (CN903) and PANEL
board (CN1002).
AUDIO MODULE BLOCK SERVICE POSITION
audio module block
8
SCD-XA777ES
NOTE FOR INSTALLATION (AUDIO MODULE BLOCK)
Note:
When installing the audio module block, insert the audio module block as shown below.
audio module block
NOTE ON POSITION OF WIRE (FLAT TYPE)
MAIN board
wire (flat type)
heatsink
A-POWER board
Heatsink gets heated up to a high temperature.
Be careful to keep the position of wire (flat type).
Be careful to keep the position of wire (flat type).
B
FRONT
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