Sony ZS-X7 Service Manual ▷ View online
– 9 –
3-8. OPTICAL PICK-UP BLOCK
2
3
7
4
CN707 (BLUE)
5
CN706 (RED)
6
CN705 (WHITE)
1
Screws (+PWH)
Flexible cable
CD block ASSY
Optical pick-up block
CD bracket
3-9. RELAY BOARD
6
2
5
CN707 (BLUE)
4
CN706 (RED)
3
CN705 (WHITE)
1
Screws (+BV 3x10)
Relay board
Wire, parallel (21core)
CD block ASSY
– 10 –
3-10. OPEN/CLOSE BOARD
3-11. REGULATOR BOARD
2
3
1
Screws (+BV 3x10)
CD block ASSY
OPEN/CLOSE board
Bracket (SW)
3-12. DC IN BOARD
2
1
Screws (+BV 3x10)
Regulator board
Cabinet , rear
2
1
Screw (+BV 3x10)
DC IN board
Cabinet , rear
< “CABINET, REAR” SECTION>
– 11 –
3-13. RESET BOARD
3-14. BATTERY (L) BOARD, BATTERY (R) BOARD
2
1
Screws (+BV 3x10)
Reset board
Cabinet , rear
2
4
4
Battery (L) board
Case, battery
Battery (R) board
Cabinet , rear
1
Screws
(+BV 3x10)
3
Bond (SC-121)
(7-432-912-45)
– 12 –
SECTION 4
TEST MODE
3. RF LEVEL and jitter check
Test mode PLAY status
Connection P oint : CD board (Conductor side)
CD SECTION
1. Entering CD test mode
With the POWER button ON, short JW880 and JW881 on the
SW (1) board. (You need a moment for the short.)
The LCD display changes as in the diagram and the unit goes
into test mode.
SW (1) board. (You need a moment for the short.)
The LCD display changes as in the diagram and the unit goes
into test mode.
When you press the u
key, the CD rotates and when you press
the u
key again, the CD plays (the track servo comes on)(but
no sound is issued).
Pressing the u
Pressing the u
key starts automatic adjustment and the value
changes, but this value is not a problem.
[SW (1) BOARD] (Conductor side)
2. Exiting test mode
With the unit in test mode, when you press the POWER button
to OFF, test mode ends.
to OFF, test mode ends.
PGM
cd
RF level:
0.9 – 1.3 Vp-p
0.9 – 1.3 Vp-p
VOLT/DIV : 200mV (using 10:1 probe)
TIME/DIV : 500ns
TIME/DIV : 500ns
R720
R719
R790
C737
C739
52
R753
C740
R718
93
C736
R732
R731
C729
R735
3
4
3
794
C727
C723
C725
C713
R799
C721
JW739
R717
C718
C7
5
R727
R722
C704
0
6
C722
C744
R706
4
2
2
5
R700
R745
C701
C714
C710
R723
R743
C712
R73
0
R728
C702
R703
C715
C709
R701
C711
JW705
4
1
C717
4
3
C7
2
R733
R71
1
C716
R7
R721
1
36
25
24
13
15
20
37
48
45
40
30
35
5
10
12
IC701
B
TP
(RFO)
TP
(VC)
oscilloscope
(AC range)
TP (VC)
TP (RFO)
1-675-599-
R848
R849
R850
R851
R859
JW880
JW881
S811
S812
S813
VOL
–
VOL
+
(TEST-1)
>
+
CD TEST MODE
SHORT : TEST MODE
OPEN : NORMAL MODE
Check to see that the jitter is less than 9.0 nsec. and RF level is
between 0.9 –1.3Vp-p.
between 0.9 –1.3Vp-p.
4. TRAVERSE SIGNAL check
Connection P oint : CD board (Conductor side)
Press the FF or FR from step 3.
Check to see that the traverse signal level is between 300 to
400mVp-p.
Check to see that the traverse signal level is between 300 to
400mVp-p.
5. RELEASE THE TEST MODE
After completed with adjustment, press the POWER button to
release the test mode.
release the test mode.
Note:
Extend the sweep time
for easier view.
for easier view.
300 – 400mVp-p
A
A
B
B
A = B
0V
0V
R720
R719
R790
C737
C739
52
R753
C740
R718
93
C736
R732
R731
C729
R735
3
4
3
794
C727
C723
C725
C713
R799
C721
JW739
R717
C718
C7
5
R727
R722
C704
0
6
C722
C744
R706
4
2
2
5
R700
R745
C701
C714
C710
R723
R743
C712
R73
0
R728
C702
R703
C715
C709
R701
C711
JW705
4
1
C717
4
3
C7
2
R733
R71
1
C716
R7
R721
1
36
25
24
13
15
20
37
48
45
40
30
35
5
10
12
IC701
B
TP
(RFO)
TP
(VC)
oscilloscope
(AC range)
TP (VC)
C712
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