Schematic Diagram - Key Section - Sony HCD-F200 Service Manual

6-21. SCHEMATIC DIAGRAM - KEY Section -

1 2
KEY-L BOARD
A
B
CN871
7P
CL877
DGND 7
CL876
KEY-POWER 6
G CL875
DGND 5
CL874
LED_9V 4
FL CL873
C
BOARD
LED_1 3
CL872
CN807
LED_2 2
(Page 47)
CL871
LED_3 1
KEY-R BOARD
D
E
HCD-F200/F500
3 4
R871 R872
1k 1k
D871 D873
CL-197HB1-D-T CL-197HB1-D-T
(F200)
AUTO WIDE STAGE
(F500)
A.F.D STD D.C.S.
S871
/
0 6.7
3.2 0
Q871 Q872
RT1N237M-TP-1 RT1N237M-TP-1
LED DRIVE LED DRIVE
CN881
2P H
S881
CL881
VOL – 1 DGND
CL882
FL
2 KEY2
BOARD
S882
R881
CN808
1k
VOL + (Page 47)
S883
R882
2.2k
• Waveforms
– DMB-FIT Board –
5
IC101 (R/Cr/Pr)
(Color bar)
H
(F200)
500 mV/DIV, 20 µs/DIV
(F500)
IC101 (B/Cb/Pb)
(Color bar)
H
500 mV/DIV, 20 µs/DIV
IC101 (Y/G)
(Color bar)
H
500 mV/DIV, 20 µs/DIV
IC101 (C)
(Color bar)
500 mV/DIV, 20 µs/DIV
IC101 (Y)
(Color bar)
H
500 mV/DIV, 20 µs/DIV
(XTALO)
IC101
1.22 ms
500 mV/DIV, 1 ms/DIV
49 49
– MAIN Board –
(XTO)
IC201
0.8 Vp-p
4.56 Vp-p
81.5 ns
2 V/DIV, 50 ns/DIV
IC251 , (CROUT)
(Color bar)
0.8 Vp-p
1.48 Vp-p
H
1 V/DIV, 50 µs/DIV
(CBOUT)
IC251 ,
(Color bar)
1 Vp-p
1.48 Vp-p
H
1 V/DIV, 50 µs/DIV
, (CYOUT)
IC251
(Color bar)
2.16 Vp-p
0.9 Vp-p
H
2 V/DIV, 50 µs/DIV
IC251 , (VOUT)
(Color bar)
1.1 Vp-p
2.56 Vp-p
H
2 V/DIV, 50 µs/DIV
IC101 (XOUT)
2.88 Vp-p
1.42 Vp-p
100 ns
2 V/DIV, 100 ns/DIV
HCD-F200/F500
– FL Board –
T801
15.6 Vp-p
6.72 µs
5 V/DIV, 2 µs/DIV
IC802 (OSC1)
3.68 Vp-p
634 ns
2 V/DIV, 200 ns/DIV