Read Sony TC-S90D Service Manual online
TC-S90D
13
13
• Waveforms
– MAIN Board –
– MAIN Board –
1
T301 4 (DECK-B REC mode)
2
Q302, 303 (collector) (REC mode)
3
NO312 6 (L-REC), 3 (R-REC)
(DECK-B REC mode)
120 Vp-p
13
µ
s
10 Vp-p
13
µ
s
52 Vp-p
13
µ
s
• IC Block Diagram
– MAIN Board –
– MAIN Board –
IC302
µPC1330HA
1
2
3
4
5
6
7
8
9
INVERTER
COMPARATER
SW R1
GND
SW P1 CONT
GND
VCC
SW P2 GND
SW R2
• Circuit Boards Location
LEAF SW board
HEAD (A) board
HEAD (B) board
TC-SUB PANEL-A board
TC-SUB PANEL-B board
TC-PANEL-A DECK board
TC-PANEL-B DECK board
MAIN board
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