Sony MZ-NHF800 Service Manual page 17

3-4-2. PwrAdj adjustments
Repeat the following procedures and adjust all contents of "table 3-
4-1. PwrAdj Specifications".
Example Display (Item No. 2211)
211
AD **
adjustment value (hexadecimal)
Procedure:
1. Connect the digital voltmeter to measuring point (refer to the
following table) and ground (CL433).
2. Press the key to change the item number.
>
3. Adjust with [VOL+]/[VOL--] keys so that the value of digital
voltmeter becomes specification value.
4. Press the key to write the adjusted value.
X
5. Press the key to select the next item.
>
6. Repeat adjustment from step 1 until item number 2233.
Adjustment Location:
– MAIN BOARD (Conductor Side) –
CL460
S892
(VBUS GND) (HALF LOCK)
SL891
SL892
R454
FB451
FB452
C455
CL453
C458
LF451
C304
C460 C459
(VBUS 5V)
FB303
R304
A K
D302
FB201
FB101
C202
C306
R105
R107
R207
R205
R307
G D D
2C 1B 1E
C308
Q352 Q353
2E 2B 1C S D D
SL894
R356
F351
C151
C152
FB355
C251
D352
K K
FB1
C252
A
K K FB354
FB353
FB2
R359
FB357 C363
D471
1
CN471
CL432
(BATT–) CL658
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
1PC. 1.5V
R306
D435
E C B
W404
Q301
D303
IC302
3 1
R315
R312
4 5
+
C314 C316 C328
R314
R618
C102
R308
1C 2B 2E
Q608
10
+ G D D
C323
1E 1B 2C
Q611
Q607
S D D
14 8
E C B
R601
15 7
C105
BP701
IC301
R677
C104
C204 21 1
K D604 A
C205
22 28
Q351
+ R664
C658
B C E
+
C354 C672
L608
C644
D609
R352
C351
18 13 A K 57 56 54 52 49 45 41 37 34 32 30 29
A K
D613
∗ 58 59 55 53 50 46 42 38 35 33 31 28
19 12
60 61
IC601
62 63 64 51 47 43 39 36
R251 R151
C630
IC352 65 66 67 68 48 44 40 23
24 7 69 70 71 72
73 74 75 76
1 6
77 78 79 96 100 104 12 11
80 81 92 95 99 103 107 8
5 4
R255
82 83
A K
R262
R155 84 87 89 91 94 98 102 106 109 111 3 2
C254 IC602
D601
85 86 88 90 93 97 101 105 108 110 112 1
1 3
D251 K A
+ C614
C675
C673 R653
Q618
1C 1B 2 1
1E 1C +
C616
E
1B 2B
2C 2B
2C 2E
Q471
C607 C671 R647
3 4
R478
C478
1 4
R682 1 5
IC606
R684
2 3
3 4
IC607
IC605
E B
16
IC401
Q401
C
A K
D401
J402
DC IN 3V
−
+
CL433
(GND)
ItemNo. Display
211 AD **
2211
212 AD **
2212
213 AD **
2213
214 AD **
2214
2215 215 AD **
2216 216 AD **
2217 217 AD **
2218 218 AD **
2219 219 AD **
2221 221 AD **
2222 222 AD **
2223 223 AD **
2224 224 AD **
2225 225 AD **
226 AD **
2226
227 AD **
2227
228 AD **
2228
229 AD **
2229
231 AD **
2231
232 AD **
2232
233 AD **
2233
Note1: "**" is adjustment value (hexadecimal number).
Note2: Ground point of all measuring points is CL433.
Table 3-4-1. PwrAdj Specifications
CL935 CL931
R443
R442 C434
1
3
IC603
IC402
L701 1 5 D611
L702
3 4
CN701
2E 2C
G D D
2B 1B
C557
1 1C 1E
Q615
R638 R639
S D D
C652 +
L605
Q613
8 5
L907
Q901
R675
C666
R616
C641
1 4
L901
SL901
27 26 D D603
25 24
Q612
22 21
20 19 18 17 G S
L906
16 15 14 13
D602 C633
10 9
7 6
5 4
IC902
3 2
R681
R646
X801
R645
4 1
R670 C628
C620
C961
R605
+
C627
8 5
C611
Q609 D
L601
R805
1 4
Q802
G S
C622 +
D801
R867 C856
C408
A K
∗ 2 1
IC804
3 4
D803
R436
G D S
SL801
Q801
CL604 CL8055
MZ-NH700/NHF800
Specification value Measuring point
2.05 V + 0.02 V
2.25 V ± 0.01 V
1.20 V + 0.01 V
3.10 V ± 0.015 V
3.10 V ± 0.015 V
3.02 V ± 0.02 V
3.02 V ± 0.02 V
2.275 V ± 0.01 V
2.480 V ± 0.01 V
2.740 V ± 0.01 V
2.985 V ± 0.01 V
2.52 V ± 0.02 V
0.89 V ± 0.02 V
1.08 V ± 0.02 V
1.52 V ± 0.02 V
2.27 V ± 0.02 V
2.97 V ± 0.02 V
0.94 V ± 0.02 V
1.28 V ± 0.02 V
2.57 V ± 0.02 V
2.57 V ± 0.02 V
+ L503
C518 + C553
C519
C554 W403
C524
C520
C530
5
R505
4
5451 48 45 43 42 40 37 34 31
C517 C438
5552 49 47 44 41 38 36 33 30
5653 50 46 39 35 32 29
C516
1 4 7 11 18 22 25 28 ∗ C427
C511
C521 2 5 8 10 13 16 19 21 24 27
D441 K A
IC501
3 6 9 12 14 15 17 20 23 26
C515
C522
C574
C531
C527
C533
R520
Q504 R524
C559 R512
E C B
R511
SL802
+
C567
C669
R868 1 4
R860
IC604
2 3
C668
C803
C805
R812
C857 R817
R820 C809
R869
∗
IC801
X802
C858
C859
CL8001
Ver 1.1
CL8027
CL8027
CL8001
CL658
CL658
CL919
CL919
CL921
CL921
CL921
CL921
CL931
CL604
CL604
CL604
CL604
CL604
CL604
CL604
CL604
CL604
CL431
(BATT+)
CL921
CL919
CL8027
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