Panasonic SA-HT520EE Service Manual ▷ View online
18.1.4.1. Adjustment Procedure
1. While the player is stopped and no disc is inserted, select
the DVD function. Press and hold down the
button on the
player and the number button, “5” on the remote controller
unit.
unit.
2. Check that “J_xxx_yyy_zz” is appearing on the display.
For your information:
The values, “yyy” and “zz” are not associated to jitter
value.
“yyy” indicates the frequency of error occurrence.
“zz” indicates the focus drive value.
value.
“yyy” indicates the frequency of error occurrence.
“zz” indicates the focus drive value.
Note:
Jitter value appears on the display.
3. Play test disc T30 (central periphery).
4. Adjust tangential adjustment screw so that the jitter value is
minimized.
5. Play test disc T30 (central periphery).
6. Adjust tilt adjustment screw 1 so that the jitter value is
minimized.
7. Play test disc T30 (central periphery).
8. Adjust tilt adjustment screw 2 so that the jitter value is
minimized.
9. Repeat adjusting tilt adjustment screws 1 and 2 alternately
until the jitter value is minimized.
10. Finally please reproduce T01 (inner periphery) and T43
(outer periphery) and check the jitter value. (Please
readjust, when the jitter value is extremely different.)
readjust, when the jitter value is extremely different.)
Fig. 18-1
18.1.4.2. Tips
1. Make tangential adjustment first, and then make tilt
adjustment.
2. Repeat adjusting two or three times to find the optimum
point.
3. Finish the procedure with tilt adjustment.
18.1.4.3. Check After Adjustment
Play test disc or any other disc to make sure there is no picture
degradation in the inner, middle and outer peripheries, and no
audio
degradation in the inner, middle and outer peripheries, and no
audio
skipping. After adjustment is finished, lock each
adjustment screw in position using screw lock.
18.1.4.4. Procedure for Screw Lock
1. After adjustment, remove top cover, tray, clamper base and
traverse unit in this sequence.
2. Lay the traverse unit upside down, and fix adjustment screw
with screw lock.
3. After fixing, reassemble traverse unit, clamper base, tray
and top cover.
Fig. 18-2
18.1.4. Optical Adjustment (Optical Pickup Tilt Adjustment)
Measurement point
Adjustment point
Mode
Disc
Tangential adjustment screw
Tilt adjustment screw
Tilt adjustment screw
T1 (inner track) replay
T30 (center track) replay
T43 (outer track) replay
T30 (center track) replay
T43 (outer track) replay
DVDT-S15 or DVDT-S01
Measuring equipment
Adjustment value
None (LCD display of the player is used.)
Adjust that jitter value becomes minimum.
45
SA-HT520EE
19 Block Diagram
LDU
HFM
125
LPC2
82
DR
V7
127
VREFH
110
RFINN
111
RFINP
132
VIN7
131
VIN8
136
VIN3
115
VIN3RF
135
VIN4
114
VIN4RF
137
VIN2
116
VIN2RF
138
VIN1
117
VIN1RF
13
V01-
11
V02-
12
V02+
14
V01+
17
V03+
18
V03-
1
BIAS
4
OPIN+
24
LDIN
25
BIAS2
26
TRIN
VIN3
23
MUTE12
9
75
DR
V0
MUTE3
27
83
DR
V8
VIN1
2
146
VCOF/AD4
VIN2
3
139
AD2
147
PWM1
148
PWM0
128
VHALF
140
AD1
ECR
21
2
A3
4
A2
7
A1
9
H1+
10
H1-
11
H2+
12
H2-
13
H3+
14
H3-
15
VH
76
DR
V1
EC
22
79
DR
V4
PS
23
72
FG
FG
24
81
DR
V6
FEED-
FEED+
COIL_W
COIL_V
COIL_U
HU+
HU-
HV+
HV-
HW+
HW-
H-
SW
OSCO
166
OSCI
165
X8621
P9
59
P8
60
6
5
T+
F+
F-
T-
T
A(DVD)
TB(DVD)
TD(DVD)
TC(DVD)
FE2(DVD/CD)
FE1(DVD/CD)
RF
VREF2 (RF-)
VREF1
PIN(CD)
SUBSEL
TRACKING COIL
FOCUS COIL
124
LPC01
Q8551
SWITCH
Q8552
SWITCH
126
LPC02
Q8561
SWITCH
Q8562
SWITCH
143
AD0
LDCD
LDDVD
78
DR
V3
QR8571
SUPPLY
CONTROL
SWITCH
HFN
VCC
OUT
130
VIN9
134
VIN5
129
VIN10
133
VIN6
SUB2
SUB1
123
LPC1
PIN(DVD)
SW
15
1M
8
SUB1
14
SUB2
13
VREF
11
RF
9
FE1
6
FE2
7
TC
4
OPTICAL PICKUP
SPINDLE MOTOR UNIT
TD
5
TB
2
TA
3
LD(DVD)
17
LD(CD)
16
B
IDCNT
28
R
IC8001
DV2.1 LSI
MN2DS0003APH
MOTOR DRIVE
IC8251
C0GBG0000044
MOTOR DRIVE
IC8271
C0GBF0000004
EEPROM
(NOT SUPPLIED)
(NOT SUPPLIED)
IC8611
C3EBGZ000001
46
SA-HT520EE
DQ0
2,4,5,7,8,10,11,
13,42,44,45,47,
13,42,44,45,47,
48,50,51,53
DQ15
MDQ0
MDQ15
1,2,4,5,7,8,10,
11,13-15,17,18,
252,254,256
MA0
MA1
1
217,220,221,223,
224,226-228,230,
224,226-228,230,
233,237,238
A0
22-26,
29-35
29-35
A1
1
BA0
20
232
BA0
BA1
21
234
BA1
LDQM
15
249
DQM0
UDQM
39
251
DQM1
/CS
19
240
NCSM
CLK
38
243
MCK
241
MCKI
/RAS
18
244
NRAS
/CAS
17
245
NCAS
/WE
16
248
NWE
A16
9,10,16,17,48
A20
A0
1-8,18-25
A15
EXADR16
EXADR20
21,30,31,43,45
EXADT0
EXADT15
23-25,27,32,
33,36,37,39-42,
46,47,50,51
DQ0
29-36,
38-45
38-45
DQ15
MDQ16
MDQ31
192-195,197-200,
203,204,206-208,
203,204,206-208,
210-212
XWE
11
22
NEXWE
XCE
26
38
NEXCE
XOE
28
52
NEXOE
12
XRESET
73
NRST
Q8606
SWITCH
Q8605
SWITCH
Q8560
SWITCH
Q8550
SWITCH
B
D8550
R
TO FLASH ROM
WRITING
CIRCUIT
FP8031
182
S
D
ATA
181
EXTRG0
180
SCLOCK
IC8001
DV2.1 LSI
MN2DS0003APH
64MB SDRAM
IC8051
C3ABPG000068
FLASH ROM
IC8651
RFKFMH81T160
VOLTAGE
DETECTOR
DETECTOR
IC8601
C0EBE0000384
RESET IC
IC8605
C0EBA0000031
47
SA-HT520EE
DIN1
45-47
DIN3
ADOUT0
ADOUT2
174-176
LRCIN
41
169
LRCK
D
ATA
4
31
171
ADOUT3
BCKIN
40
170
SRCK
SCLKI
38
163
DACCK
MDO
33
58
P10
MDI
34
57
P1
1
MC
35
56
P12
ML
36
53
P15
ZFLGA
48
55
P13
RSTB
37
16(20)
VOUT7(8)
14(13)
VOUT1(2)
12(11)
VOUT3(4)
10
VOUT5
9
VOUT6
149
DAC1OUT
151
DAC2OUT
QR8420
MUTING
SWITCH
SWITCH
152
DAC3OUT
156
DAC4OUT
158
DAC5OUT
70
P1
69
P2
2
1
68
P3
2
1
5
5
5
8
1
B
MIXL(R)
FL(R)
SL(R)
CNT
SW
ZFLAG
PY
CB_B
CR_R
S_Y
S_C
DVD_CMD
DVD_ST
A
T
DVD_CLK
4
4
A
177
IECOUT
IECOUT
AUDIO DAC
IC8451
C0FBBK000036
IC8001
DV2.1 LSI
MN2DS0003APH
AND GATE
LOGIC IC
LOGIC IC
IC8695
C0JBCA000066
AND GATE
LOGIC IC
LOGIC IC
IC8691
C0JBCA000066
POWER
SUPPLY
SUPPLY
IC8111
C0CBCBD00018
TO MAIN
BLOCK
48
SA-HT520EE
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