R329
C348
C317
R721
R323
C230
C600
C320
C323
C324
C325
R333
R334
R341
R342
C231
R605
R601
C104
C105
C109
C110
C112
C113
C115
C117
C122
C123
C127
C129
C130
C151
C156
C157
C165
C168
C169
C172
C174
C177
C181
C183
C184
C186
C192
C193
C197
C199
C200
C204
C205
C223
C224
C261
C282
C283
C290
C301
C302
C303
C305
C306
C307
C308
C309
C310
C341
C342
C362
C364
C370
C376
C421
C422
C430
C431
C440
C441
C701
C702
C704
C706
C708
C711
C713
C790
C791
C792
D103
D104
D106
D351
L101
L106
L109
L251
L315
L317
L320
L368
L371
L372
L790
Q113
Q114
Q202
Q207
Q208
Q702
Q712
R104
R107
R115
R117
R120
R121
R130
R131
R133
R134
R135
R137
R138
R139
R140
R141
R142
R145
R151
R152
R153
R158
R160
R161
R162
R163
R171
R174
R175
R176
R179
R180
R181
R182
R187R199
R202
R203
R205
R208
R230
R231
R232
R233
R234
R235
R241
R242
R245
R246
R249
R253
R254
R255
R261
R262
R271
R272
R273
R274
R275
R276
R277
R278
R289
R293
R294
R295
R296
R297
R298
R299
R308
R313
R314
R316
R322
R326
R327
R338
R348
R357
R360
R361
R388
R395
R403
R404
R413
R414
R416
R417
R420
R421
R423
R424
R430
R431
R432
R434
R440
R441
R442
R443
R457
R621
R622
R623
R626
R627
R629
R630
R637
R638
R640
R642
R647
R648
R649
R650
R656
R659
R660
R661
R674
R678
R705
R706
R707
R709
R710
R711
R712
R717
R720
R722
R741
R743
R744
R745
R753
R754
R755
R756
R758
R760
R771
R772
R775
R777
R778
R798
R791
R799
C189
C232
R620
R258
R259
R610
R611
R300
C233
C234
C235
C236
C316
L111
USBRST
DABRST
32.724K
A
B
C
D
S3_1
STBY+B
S3_2
1 FLAC2
2 FLAC1
3 SUBRST
4 SUBCLK
5 STBYLED
6 SUBSY
7 EV5V
8 SUBSO
9 REMIN
10 SUBREQ
11 GNDD
12 GNDD
13 GND CPU
14 -VP
15 INT_K0
16
VCD+5V
17 KEY0
1 GND0
2 A
CP
O
WER
3 POFF
4 EV5V
5 SI_2
6 SI_1
7 FL_
A
C2
8 FL_A
C1
3.3
SSTOP
SL-
SL+
SP-
SP+
LD+
LD-
CDCLOSESW
GND_CPU
CDOPENSW
13 RDS_CL
12 RDS_
D
AT
A
11 GND
10 SMETER
9 RCH
8 GND
7 LCH
6 VDDSEL
5
VCC(9V)
4 TUNED
3 ST
2 SD0
1 SCL
RFAC
1
VC
2 +3.3V_M
3 E
4 D 5 A
6 B
7 C
8 F
9 GND_DM
10 LD
11 PDSENS
12 PD
13 FO+
14
TR+
15
TR-
16 FO-
1 R-CH
2 GND
A
3 L-CH
4 GND
A
5 A_MUTE
7 RCPO
WER
8 PRO
TECT
9 +9V
10 GN
D
A1
11 -9V
9 RESET
8 CNVSS
7 FRXD
6 FCLK
5 COM5V
4 FBUSY
3 FTXD
2 GND CPU
1 ACPOWER
1 1.2V
2 3.3V
3 GND
4 GND
6 GPIOB11
7 GPIOA5
8 GPIOC15
9 GPIOB1
10 GPIOA12
11 GPIOB4
12 GPIOB10
29 AUD_L
30 AUD_R
12
13 SCP2DATA
14 SCP2CLK
15 S1_DIN
16 S1_DOUT
17 SPICS2
18 GPIOA14
19 SYS_RESET
20 S/PDIFOUT
21 SPI_MISO
22 SPI_MOSI
23 SPI_SCLK
24 AUD_MCLK
25 AUD_SFR
26 AUD_SCLK
27 AUD_SDOUT0
28 AGND
30 29
5 GPIOB14
RESET
XC
POFF
ADJUSTMENT PROCEDURE
CLOCK FREQUENCY ADJUSTMENT
CR-325/325UKD
Test-_-
Test-1-00
Test-1-02
Clear
C703
Adjustment point
Trimming capacitor
TEST POINT
32.724KHz
Test point
GND
32.7682 kHz +/- 0.15Hz
GND
Frequency counter
FL display
Standby
blink
Pre-amplifier PC board
(NAAR-9575).
--- Right side view ---
Front side
[When]
1. Exchange Main circuit PC board (NAAR-9575).
2. Exchange crystal (X702).
[Procedure]
1. Connect the frequency counter to the test point 32.724K and GND on Main circuit PC board (NAAR-9575).
Refer to <Fig-1>
2. Press the STANDBY/ON button to turn on the unit.
3. Press and hold down the OPEN/CLOSE button and then press the STANDBY/ON button.
" Test - _- " is displayed only for 5 seconds.
4. Press the INPUT button while the characters of " Test - _- " are displayed.
" Test - 1-00 " is displayed only for 5 seconds.
5. Repeatedly press DIRECT button until the characters of " Test-1-02 " are displayed.
6. Adjust the trimming capacitor C703 so that the reading of frequency counter becomes following specification.
Specification : 32.7682 kHz +/- 0.15 Hz when the room temperature is 15 ~ 20 degree.
32.7682 kHz +/- 0.2 Hz when the room temperature is 20 ~ 25 degree.
7. Press and hold down the STOP button and then press the STANDBY/ON button.
8. Disconnect the power cord from a wall outlet and the frequency counter.
<Fig-1> Test point and Adjustment point
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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