Sony HCD-F250AV / MHC-F250AV Service Manual ▷ View online
HCD-F250AV
— 57 —
— 58 —
6-16. SCHEMATIC DIARGAM — MAIN (3/5) SECTION —
• See page 51 for Printed Wiring Board. • See page 75 for Waveforms. • See page 80 for IC Pin Functions.
HCD-F250AV
— 59 —
— 60 —
6-17. SCHEMATIC DIARGAM — MAIN (4/5) SECTION —
• See page 51 for Printed Wiring Board. • See page 84 for IC Black Diagrams.
HCD-F250AV
— 61 —
— 62 —
6-18. SCHEMATIC DIARGAM — MAIN (5/5) SECTION —
• See page 51 for Printed Wiring Board.
HCD-F250AV
— 63 —
— 64 —
6-19. PRINTED WIRING BOARD — PANEL SECTION —
• See page 33 for Circuit Boards Location.
A
TO
MAIN BOARD
CN501
(Page 51)
FUNC BOARD
DOOR LED
BOARD
BOARD
CD LED
BOARD
BOARD
PANEL BOARD
SW/POWER BOARD
2 1
1-669-681-
11
(11)
1-669-651-
11
(11)
1-669-652
11
(11)
1-669
-646-
-646-
11
(11)
1-669-645-
11
(11)
1
10
1
2
3
VOLUME
DSP
ENTER
GROOVE
DBFB
CD
1
2
3
4
5
GROUP ENTRY
FLASH
LOOP
CD PLUS ONE
REPEAT
CHECK
CLEAR
DELETE
PROLOGIC
FILE
SELECT
SELECT
MEMO
SEARCH
SEARCH
MEMO
SCAN
SCAN
MEMO
INPUT
INPUT
DISYLAY/
DEMO
DEMO
HI-SPEED
DUBBING
DUBBING
REC
PAUSE
CD
SYNCHRD
TUNER/
BAND
BAND
CLOCK
TIMER
TIMER
TIMER
SELECT
SELECT
PROGRAM
SHUFFLE
CONTINUE
FUNCTION
1
10
1
5
TAPE A
TAPE A
TAPE B
TAPE B
E
1/
1
5
E
1
1
3
(JOG)
2
E
E
E
E
E
E
E
6869
65
42
FL601
17
5
1 2
16
1
2
A
B
C
D
E
F
G
H
I
3
4
5
6
7
8
9
10
11
12
Ref. No.
Location
D601
E-7
D602
E-5
D611
E-5
D612
E-8
D613
D-3
D614
D-4
D615
C-3
D616
E-5
D617
C-11
D618
B-12
D619
H-8
D620
H-6
D621
H-5
D622
H-5
D623
H-4
D624
H-3
D625
C-8
D626
C-7
D627
D-7
D628
C-6
D630
C-6
D631
C-5
D632
C-4
D633
I-1
D634
H-1
D635
H-1
D636
G-1
D637
A-2
D638
B-2
D639
B-2
D640
B-2
IC601
B-5
IC602
B-10
IC603
B-7
Q601
E-6
Q602
E-5
Q603
E-6
Q604
E-8
Q608
D-4
Q609
D-4
Q610
D-4
Q611
E-6
Q612
E-6
Q621
B-8
• Semiconductor
Location
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