Block Diagram - Hitachi HA-6800 Service Manual

HITACHI HA-6800
BLOCK DIAGRAM/BLOCK SCHEMA•SCHEMA
S401
PHO NO
SELECTOR
SW.
PHO NO
(MM-MC)
rREC
TAPE 1
EQUALIZER
AMP.
IC401
0401. 402
HA 12017
2SC2546
x
2
S601 - 605
FUNCTION
SELECTOR
SW.
S606
MODE
SW.
LPLAY1~--t-----e----+-~
jREC
TAPE2
LPLAY
r-~-+------e---t---'
AC120V
~220-240V
~100-120V
~220-240V
50/60Hz
S402
REC
SELECTOR
SW.
p
T
R601
R602
S609
BALANCE
VOLUME
TONE SW.
DUAL SERVO CIRCUIT
IC701
FILTER
SW.
RECT.
0801. 802
ERB12-01
TONE CONTROL
.v
R603
~
BASS
.¥
R604
t
TREBLE
STAB. POWER SUPPLY
0801
FET702
HA1452W
µPA68H
MAIN AMP.
FET701. 703. 704
0701-710
µPA68H
2SK133
2SJ48
2SD756 x 3
2SA1015
2SC2389><2
2SB71 6 >c 2
2S0669A
2SB649A
Z0801 LAMP
2S0330AL (+B4)
R011EN
RY701
POWER
RELAY
SPEAKER B
PHONES
~---< 1 JACK
PROTECTION
CIRCUIT
__
__.___.........___,
IC901
0711. 901
MAIN AMP. (+B1)
HA 12002
2SA 1038
2S0756
STAB. POWER SUPPLY
0802-805
ZD802 - 805 EQUALIZER. TONE AMP.(+B2)
i--c2?<s':ro:;-;'.31'13?107IAIL-1----.... MAIN AMP .(+B3)
2SB514AL t------MAIN AMP.(-B3)
2SC1 740LN EQUALIZER. TONE AMP.(-B2)
2SA1015
R012EN3
x
4
0804
MAIN AMP.(-B1)
MAIN AMP.(+B)
S5VB20
MAIN AMP.(-B)
-8-