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ADJUSTMENT
IC,
HALZL33MP
Pin
.
Pin Name
1/0
Description
Description
Connected to a resistor which
Connected to the collector of
1 {| RECLVB
| - | sets the O-ch PCM area recording
31
PBSWA
the A-ch Ist aap switching
LA
MAIN
C.B
transistor.
FSTINA
3
|BrasPpc2
Connected to a bypass capacitor
Z
of the bias circuit.
Connected to the base of the A-c!
ist amp switching transistor.
[1] B-ch Ist amp input.
Connected to the collector of
level.
Connected
to a resistor which
PLTLV8
~ | sets the B-ch ATF pilot area
recording level,
TP ATFOCT | 0 [MF serve prea outeut |
4
RFOUT
0 | Preamp output.
3
EQLINP
IT | EQ1 amp positive input.
6
7
6
FSTINB
EQIOCT | 0 [etawotwt. «dss
€or
ted to a bypass capacito!
BIASPC1
eee :
é
ae
:
of the bias circuit.
{ 3 |
AGND
[ - | Ground of analog systes.
10
EQ2INP
I | EQ2 amp positive input.
EQ2INN
2
EQ2GAN
7
Connected e the resistors which
set the gain of the EQ2 amp.
| EOROUT [0 [ete aw outer.
Sd
[a
DGND | - [round of digital wate. |
15
RDATA
I | Recording data input.
Signal to switch the ATF pilot
the B-ch Ist amp switching
transistor,
FSTOTS
SNDINB
I | B-ch 2nd amp input.
Connected
to a bypass capacitor
of the B-ch 2nd aap.
4)
RECOTB
0 | B-ch REC amp output.
;
Power supply of analog system,
42
-AVCC
-
SANG
(RF+5V)
TP8 @S SFRI
[a3 [| RECINB [1 [arch REC amp input.
|
PLOT
A
[44 | VCAOTB | 0 |Brch REC VCA output.
(8)
©
IC8
area recording level.
R
"High": ATF pilot area
pee
"Low" : other
Recording/playback
switching
oo
16 | PLAREA
I
W
REC/PB
I
signal input.
"High":
recording
"Low" : playback
?
Head switching signal input.
:
18
SWH
T | "High": B-ch
Sw2
:
"Low" : A-ch
INPUT
i
19
TEST
- | Test pin. (connected to ground)
Sw3
|
Power supply of digital sytem.
Connected to a resistor which
swt
aL
PLTLVA
sets the A-ch ATF pilot area
recording level.
Connected
to a resistor which
22
RECLVA
sets the A-ch PCM area recording
level.
23
VCAOTA
0 | 4-ch REC VCA output.
24
RECINA
I | A-ch REC amp input.
25
PVCCPC
Q | Reference bias output.
26 | RECOTA | 0 | A-ch REC amp input.
Connected
to a bypass capacitor
27
SNDPCA
oe
of the A-ch 2nd amp.
28 | SNDINA | I | A-ch 2nd amp input.
3 [FSTOTA | 0 [iren Ist aw ootest.
+
30 [ RGNDA
| = | Ground.
46
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