Sony HCD-GN88D Service Manual page 25

WAVEFORMS
r
– MAIN BOARD –
– DMB03 BOARD –
IC501 qa XC-OUT 1 IC901 r; XTAL
1
3.0Vp-p
32KHz
VOL/DIV : 1V AC
TIME/DIV : 10 µ sec
2 IC906 8 XTO
2 IC501 qd X-OUT
2.0Vp-p
16MHz
VOL/DIV : 1V AC
TIME/DIV : 50nsec
3 T301 4 3 IC906 0 SO2
TAPE REC only
240Vp-p
13 µ sec
VOL/DIV : 50V AC
TIME/DIV : 10 µ sec
4 T301 5 4 IC906 qd SO3
TAPE REC only
64Vp-p
13 µ sec
VOL/DIV : 50V AC
TIME/DIV : 10 µ sec
5
IC207
6
IC207 128 VDAC_1
3.3 Vp-p
1H 976 mVp-p
20 MHz
VOL/DIV : 1V AC VOL/DIV : 0.5V AC
TIME/DIV : 20nsec TIME/DIV : 20 µ sec
7 IC207 VDAC_2
125
1 Vp-p
3.5 Vp-p
27 MHz
1H
VOL/DIV : 1V AC
VOL/DIV : 0.5V AC
TIME/DIV : 20nsec
TIME/DIV : 20 µ sec
8 IC207 VDAC_3
122
750mVp-p
4 Vp-p
1H
30nsec
VOL/DIV : 1V AC VOL/DIV : 0.5V AC
TIME/DIV : 20nsec
TIME/DIV : 20 µ sec
9 IC207 VDAC_4
119
750mVp-p
4 Vp-p
30nsec
1H
VOL/DIV : 1V AC
VOL/DIV : 0.5V AC
TIME/DIV : 20nsec
TIME/DIV : 20 µ sec
VDAC_0
131
1Vp-p
1H
VOL/DIV : 0.5V AC
TIME/DIV : 20 µ sec
– DISPLAY BOARD – – RF Board –
1 IC601 is X OUT
1
IC001 1 DVD RFP
2.4Vp-p
4MHz
0.2V/div
VOL/DIV : 1V AC
100nsec/div
TIME/DIV : 0.2 µ sec
2
IC001 el TE
0.5V/div
1msec/div
3
IC001 r; FE
0.1V/div
1msec/div
4
IC001 tj RFAC
0.5V/div
100nsec/div
25 25
HCD-GN88D
0.7Vp-p
1.8Vp-p
0.3Vp-p
1.2Vp-p