Alpine TDA7556R Service Manual page 20

TDA-7556R/7659R/ TDA-7556R/7659R/
TDA-7552R/7550R TDA-7552R/7550R
42/2) 1c502 IcS0t
1co7t Tc82t
Ott
Q062_ 906! O71 072 Q502__Q501
) A SS Ae SS SN SS SS cy ey SSS SA SSS SSS ys es ne es ss ss cm me ce cme cs cee ce es rs ce ee ee ce ce ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee
RESETON/OFF
ROSON/OFF
(a)
— a8
(c)
CIF MUTE)
CIC501)
To Main P.C.Board (3/4)
R528 47K
2 | g
BL E18 BURCORR RTE 8
4] z F; LHL NMED ODOOODOAOY Fe
- S24CR2ELH= THB sels %
: seReyUgOER jHEEME ie ee
ES8.e*s2 =u
[sa 2am | |
R13: 1K ae
ee en [|
i 4 rail ii LTA fat NC 31 | swov | PWRICONIOFF
oF
- HP (——_ =
: ROSIE ETEDESEISEIONED g
5VAOV DF ON/OUT 32 SvV | Power ONDOFF |
NC dBo er dsess a3 g ov BUZZER Ee) NC Sa eee
F
eeeessss yg
Ne
28
es
(1) NFP EV DATACO@}/NC( 40) TN INT(O@) /PUL-DOWC4.0) @—+,— :
NORMALDOLBY B PS 3 '| ove | RESETONOFF
ne 1C502 NOSE PWR AL-NET IN, — = 5V 36 DATA
3 Pa iii ae
ese s ow ALARM
| 37__| DATA
ie [DTS 4 COM:
8 : ov 38
| svev | ACCONOFF
ic
FS ALARM
NG 39 | -svev | BATTONOFF
NC
NPF EV cE(O@)/nc(aa) 95151W08 a
Ww. my BV
es (MAIN ~COM) ovsv | powByBONOFF | 41,42 | Osc
q id
ovsv | DOLBY C ON/OFF 2 ov
NC NG 44 NC
|
SVAN | FFREWOTHER | 45,46 | OV
L SVN FORVREV 47 ovisv | CD ChangeEQ
SVAN | TAPE-PLAYOTHER | O@48 | OVSV | IN-INTONIOFF
ere
ov ArH ov
a) SVOV | FF-REW/OTHER 9 =
ONE |
=
OR | + ov 50, 51 5V
ri = 19 SVAV | METAUNORMAL | 52,53 ov
? 20 svev | PACK-INOUT 54 | 25visv | NOSE ON/OFF
ce]
TF cEV CLK} —A) } a 21-23 | DATA 55,56 | 5V
3 24 wv 57-69 | DATA
A ea) * 5 sviov | TAPE-PLAYiPAUSE | 60,61 | 5V
aaa 2 ee aan
=
°
[= ' 1 a
(MUTED Seam | ova7vev | 4ovegvev [ovesvezy | svovev | ovovov | oVvOvOV | NORMALDOLBY B/C = Se eal |
<Measuring Conditions>
'
(30)
1. Power Supply Voltage : DC14V
f 0072. (51) 2. Measuring Meter : Digital Multi Meter
"NN 2SA1087K
RS75 1K tei _ 3. Measuring Point Reference : Between Ground
2
on R077 '
RS76 1K <a
4. Measuring Conditions : No Signal Input
ST x ee
aco)
© a FM : 98.1MHz
Ss I Bea hn To Bo) :
xl 7S nomessem [MULTI PATH
oe 3 | asce | ovev NOSE P. ONOFF |
a ote =e Sh
= & I N E TEC
i
g 2 DETER a
(58)
S | ce@acen | 138v | . eels
RO7S 330K :
(57) a
NOTE: ©: For TDA-7556R Model Only,
(NOSE POWER!
iS
@ : For TDA-7659R Model Only,
g
[SWITCHING |
(38) =
4: For TDA-7552R Model Only,
DTC1 24K
conn Gee 3 2
3 2
C): For TDA-7550R Model Only,
an 188133100 I §
g j
Others : Common.
(LCD+B) +)
(LAMP +B) —{k)
(Leos) 1)
CAVREF ) —{m)
(BATT) —{n)
=pRpUSSSReET 2958
PE EEEEE Ere "ye
NOt ey NOTE:
From Front P.C.Board (CH401)
1. All resistance values are in ohms. K = 1,000
1
2. All capacitance values are in microfarads. P =
1,000,000
D ' E