Printed Wiring Board - Sony M-727V Service Manual

M-727V
SECTION 4
DIAGRAMS
e Semiconductor
e Semiconductor Lead Layouts
Location
7 4-1. PRINTED WIRING BOARD
red
12 43 14 45 7 19 20 24 22 23 D101 D-12 XN4601 188335 i — 4 __| 17 _ 48 —
D-13
J102
D-11
DC IN 3V
J-5 oS
5102 aide $104
ee
ox
rs
[44__ FAST PB]
[TAPE SPEED]
S CATHODE
[2.4cm|—>[1.2cm]
6-13 (MAIN BOARD] PB aa
— a
D-10 J103
E-10
F-10
J-9 DRY BATTERY
K-10 XN4501 GL-8PR42 D — SIZE "AA"
K-9 IEC DES GNATION R6)
K-20
K-17 7 SPEAKER
K-19
G-14 E
L-18
J101
" ; i
(PLUG IN POWER)
3
6
F
2
1 ANODE CATHODE jt
RED
6 wico0i Ql
DA204U |_| ov
anode, cathode anode H MOTOR
| RVIOL
cathode cathode
anode ; N.C. \
4
J
HEAD
Note on Schematic Diagram: . Ly FLEXIBLE
e All capacitors are in uF unless otherwise noted. pF: ppyF BOARD
50 WV or less are not indicated except for electrolytics K
and tantalums.
e All resistors are in Q and % W or less unless otherwise |
specified.
e —e+ : printed resistor. 7 {0}
e : B+ Line. S103
e ({___]:
panel designation.
vor]
e [~~] : adjustment for repair. M
® Total current is measured with no cassette installed. EN gE lad
@ Power voltage is dc 3 V and fed with regulated dc power supply I
from external power voltage jack.
@ Voltages are dc with respect to ground under no-signal N
conditions. |_|
no mark: PLAY e IC Block Diagrams
¢ ): REC
® Voltages are taken with a VOM (10 MQ/V). 2 ; LAS521M NJM2072M
Voltage variations may be noted due to normal production
eines :
: =
CONT NC VS GND INPUT CG)
Vcc
e@ Signal path. (8) @) 6) )
x : PB
x» : REC
L
GAIN CONT) (7) OUTPUT 2
Note on Printed Wiring Board: AMP OUT @) OUTPUT |
® o——:; parts extracted from the component side.
e @ : Through hole.
Gye
e
: Pattern from the side which enables seeing.
o GNO@) ©) TIME CAP
® ©€---- ; Pattern of the rear side. N ce
e {._] : printed resistor of the rear side.