Sony HCD-NEZ30 Service Manual - Page 4

Main Power Transformer T902 - model

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HCD-NEZ30 Ver. 1.5 LASER DIODE AND FOCUS SEARCH OPERATION CHECK During normal operation of the equipment, emission of the laser diode is prohibited unless the upper lid is closed while turning ON the S820. (push switch type) The following checking method for the laser diode is operable. • Method Emission of the laser diode is visually checked. 1. Open the upper lid. 2. Push the S820 as shown in Fig.1. Note: Do not push the detection lever strongly, or it may be bent or damaged. 3. Press the u button. 4. Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. In this operation, the object lens will move up and down 2 times along with inward motion for the focus search. NOTE WHEN PARTS RELATED TO POWER TRANSFORMER ARE REPLACED In this set, the main power transformer (T902) and sub power transformer (T901) of US and Canadian models have been changed in the midway of production. The mount parts on DC board and Part No. of DC board have been changed along with it. Perform after confirming which type set when you repair set because there is a suited combination. • DISCRIMINATION Distinguish by the print of label pasted to side of main power transformer (T902). - MAIN POWER TRANSFORMER (T902) - S820 Fig.1 Method to push the S820 MODEL IDENTIFICATION - Rear View - Part No. 1-443-902-11: TYPE A 1-443-903-11: TYPE B • Combination POWER TRANSFORMER (T902) T901 (on AC board) D921 (on DC board) R911 (on DC board) R912 (on DC board) R920 (on DC board) DC board TYPE A 1-443-902-11 TRANSFORMER, POWER 1-443-833-11 TRANSFORMER, POWER NO MOUNT 1-216-841-11 METAL CHIP 47K 5% 1/10W 1-216-841-11 METAL CHIP 47K 5% 1/10W NO MOUNT A-1158-136-A TYPE B 1-443-903-11 TRANSFORMER, POWER 1-443-846-11 TRANSFORMER, POWER 6-501-193-01 DIODE 1SS355WTE-17 1-216-829-11 METAL CHIP 4.7K 5% 1/10W 1-216-845-11 METAL CHIP 100K 5% 1/10W 1-216-864-11 SHORT CHIP 0 A-1216-850-A Model Name E model Mexican model Chilean and Peruvian models Argentina model US and Canadian models UK model East European model Part No. 2-665-907-0[] 2-665-908-0[] 2-665-909-0[] 2-665-910-0[] 2-665-913-0[] 3-100-772-0[] 3-312-856-0[] 4

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4
HCD-NEZ30
LASER
DIODE
AND
FOCUS
SEARCH
OPERATION
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S820. (push switch type)
The following checking method for the laser diode is operable.
•
Method
Emission of the laser diode is visually checked.
1.
Open the upper lid.
2.
Push the S820 as shown in Fig.1.
Note:
Do not push the detection lever strongly, or it may be bent or damaged.
3.
Press the
u
button.
4.
Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
Fig.1 Method to push the S820
S820
Ver. 1.5
MODEL
IDENTIFICATION
– Rear View –
Model Name
Part No.
E model
2-665-907-0
[]
Mexican model
2-665-908-0
[]
Chilean and Peruvian models
2-665-909-0
[]
Argentina model
2-665-910-0
[]
US and Canadian models
2-665-913-0
[]
UK model
3-100-772-0
[]
East European model
3-312-856-0
[]
Part No.
NOTE
WHEN
PARTS
RELATED
TO
POWER
TRANSFORMER
ARE
REPLACED
In this set, the main power transformer (T902) and sub power
transformer (T901) of US and Canadian models have been changed
in the midway of production.
The mount parts on DC board and Part No. of DC board have been
changed along with it.
Perform after confirming which type set when you repair set because
there is a suited combination.
•
DISCRIMINATION
Distinguish by the print of label pasted to side of main power
transformer (T902).
– MAIN POWER TRANSFORMER (T902) –
•
Combination
TYPE A
TYPE B
POWER
1-443-902-11
1-443-903-11
TRANSFORMER
TRANSFORMER,
TRANSFORMER,
(T902)
POWER
POWER
T901
1-443-833-11
1-443-846-11
(on AC board)
TRANSFORMER,
TRANSFORMER,
POWER
POWER
D921
NO MOUNT
6-501-193-01
(on DC board)
DIODE 1SS355WTE-17
R911
1-216-841-11
1-216-829-11
(on DC board)
METAL CHIP
METAL CHIP
47K
5%
1/10W
4.7K
5%
1/10W
R912
1-216-841-11
1-216-845-11
(on DC board)
METAL CHIP
METAL CHIP
47K
5%
1/10W
100K
5%
1/10W
R920
NO MOUNT
1-216-864-11
(on DC board)
SHORT CHIP
0
DC board
A-1158-136-A
A-1216-850-A
1-443-902-11: TYPE A
1-443-903-11: TYPE B