Sony TC-KE240 / TC-RE340 Service Manual ▷ View online
17
• Waveforms
– MAIN BOARD –
– MAIN BOARD –
1
IC801
el
(EXTAL)
2
IC801
eg
(SHUT) (REC or PB mode)
3
IC331
7
,
8
,
qa
,
qs
, (REC mode)
(TC-RE340)
4
Q332 (Base) (REC mode)
5
Q332 (Collector) (REC mode)
6
Q333 (Base) (REC mode)
7
Q333 (Collector) (REC mode)
8
IC801
4
(XIN)
4.3 Vp-p
10 MHz
6.5 Vp-p
580 ms
4.3 Vp-p
9.8
µ
s
28 Vp-p
9.8
µ
s
7 Vp-p
9.8
µ
s
2.8 Vp-p
330 ns
3.5 Vp-p
9.8
µ
s
28 Vp-p
9.8
µ
s
18
TC-KE240/RE340
7-2.
PRINTED WIRING BOARDS – HEAD RELAY (REC/PB)/LEAF SW (REC/PB) Boards –
•
See page 16 for Circuit Boards Location.
1
7
5
4
05
A
MAIN BOARD
CN301
05
B
(PLAY)
MAIN BOARD
CN302
(Page 19)
(Page 19)
19
19
TC-KE240/RE340
D341
D-9
D351
E-1
D352
E-1
D601
G-7
D701
G-1
D702
G-1
D703
G-1
D704
G-1
D705
F-1
D706
F-1
D707
F-1
D708
G-5
D709
G-5
D710
G-2
D711
G-4
D712
F-2
D713
E-2
D714
F-2
D715
F-3
D716
F-1
D717
F-3
IC301
D-7
IC302
G-6
IC303
E-9
IC304
A-6
IC305
A-5
IC306
D-1
IC331
B-8
IC701
G-3
IC801
C-3
IC802
B-4
Q101
E-5
Q102
G-8
Q104
C-6
Q201
E-6
Q202
G-8
Q204
F-8
Q301
G-7
Q302
E-2
Q303
E-3
Q304
B-2
Q305
B-2
Q306
A-2
Q307
B-2
Q308
B-2
Q309
B-2
Q310
B-6
Q311
A-10
Q331
A-8
Q332
A-10
Q333
B-10
Q341
B-7
Q351
C-1
Q352
C-1
Q601
G-7
Q701
G-5
Q702
G-4
Q703
G-3
Q704
F-2
Q707
F-2
Q708
F-2
7-3.
PRINTED WIRING BOARD – MAIN Board –
•
See page 16 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
(Page 24)
(Page 26)
(Page 18)
(Page 22)
(Page 26)
(Page 18)
20
20
TC-KE240/RE340
7-4.
SCHEMATIC DIAGRAM – MAIN Section (1/2) –
•
See page 17 for Waveforms.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
(Page
23)
(Page 25)
(Page
26)
(Page 21)
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