Yamaha R-70 User manual

I
1
R-70 / R-70M
• SPECIFICATIONS
•AUDIO SECTION
Continuous Power Per Channel
20Hz to 20kHz, 0.015% THO 8n. 45W
Dynamic Power
1
kHz I HF Signal 4f2 80W
2n. 80W
DIN Standard Output Power Per Channel
1kHz1%THD8f2 55W(A)(B)(G)
Dynamic Headroom (IHF) -- --- -
an. 1.3dB
Power Band Width
0.02% THO 22.5W an
Damping Factor
1 kHz an
Input Sensitivity/Impedance
Phono MC
MM
Aux, Tape
Input Sensitivity (New IHF)
Phono MC
MM
Aux, Tape
Maximum Input Signal
0.02% THO Phono MC
MM
Output Level/Impedance
1 OHz to 30kHz
40
1soµv11 oon.
2. 5mV /47kf2
120mV /47kf2
24µV
0.37mV
18mV
7mV
110mV
Rec Out 120mV /4.7kn.
Headphone Jack Rated Output/Impedance
0.015% THO 0.67V/220n.
Frequency Response
20Hz to 1OOkHz Aux. Tape
RIAA Equalization Deviation
50Hz to 20kHz Phono MC
20Hz to 20kHz Phono MM
Total Harmonic Distortion
Phono MC to Rec Out (1V)
MM (1V)
Aux Tape to SP Out 1W/8n.
Intermodulation Distortion
-3dB
±o.5dB
±o.5dB
0.008%
0.008%
0.008%
Aux, Tape Rated Output/Sn. 0.008%
Signal to Noise Ratio UHF - A-Network)
Phono MC (500µV Input Shorted) 75dB/73dB (G)
MM (5mV Input Shorted) 88dB/86dB (G)
Aux, Tape, Tuner (Input Shorted) 100dB/98dB (G)
Signal to Noise Ratio (New IHF)
Phono MC
MM
Aux, Tape, Tuner
Residual Noise (!HF-A-Network)
Channel Separation
74dB/72dB (G)
72dB/70dB (G)
81dB/80dB (G)
140µV
Aux, Tape 5.1kn. Shorted lkHz 60d8
Filter Characteristics
Low (Subsonic Builtin)
ccss
LOUDNESS
BASS
PRESENCE
Preset
MAX.
Preset
MAX.
Preset
MAX.
60Hz
250Hz
1kHz
4kHz
16kHz
60Hz
250Hz
lkHz
4kHz
16kHz
60Hz
250Hz
1kHz
4kHz
16kHz
60Hz
250Hz
lkHz
4kHz
16kHz
60Hz
250Hz
1kHz
4kHz
16kHz
60Hz
250Hz
1kHz
4kHz
16kHz
15Hz -12d B/oct
OdB
-2d8
-5dB
-5dB
- 3dB
-1dB
-5dB
-12dB
-11d8
- 4dB
5dB
3dB
ldB
OdB
OdB
10dB
6dB
1dB
OdB
OdB
OdB
OdB
3dB
5dB
3dB
-2dB
OdB
7dB
lOdB
6dB
TREBLE Preset 60Hz OdB
250Hz OdB
1 kHz OdB
4kHz 3dB
16kHz 6d8
MAX. 60Hz OdB
250Hz OdB
lkHz ldB
4kHz 7dB
16kHz 11dB
HIGH FILTER Preset 60Hz 1dB
250Hz 1dB
1kHz OdB
4kHz -5d8
16kHz -6dB
MAX. 60Hz 1dB
250Hz 1dB
1 kHz -1d8
4kHz -8d8
- ----- ---~----'- 1 = 6 ~ k ~ H _z _ _ -~11dBc:__ _ ____ ~
Output Level/Impedance (Fixed)
FM 100% mod 1kHz
FM
40kHz mod
AM 30% mod 400Hz
•FM SECTION
500mV/5kn.
380mV /5kn. (G)
150mV/5kn.
Tuning Range 87.5 to 108 . 0MHz
50dB Quieting Sensitivity (IHF, 75f2)
Mono 1.6µV (15.3d8f)
Stereo 22µV (38.1dBf)
Usable Sensitivity
30dB Quieting 75!2
Usable Sensitivity (DIN, 75f2)
Mono (S/N 26d8)
Stereo (S/N 46dB)
Image Response Ratio
IF Response Ratio
Spurious Response Ratio
AM Suppression Ratio
Capture Ratio
Alternate Channel Selectivity (IHF)
Selectivity (two signals) (DIN)
Signal to Noise Ratio (IHF)
0. 8µV (9.3dBf)
0.8µV (9.3dBf) (G)(B)(A)
25µV (39.2dBf) (G)(B)(A)
50d8
90dB
70dB
60dB
1. 5d8
55d8
60dB (G)
Mono 85d8
Stereo 81d8
Signal to Noise Ratio (DIN-UNWeighted)
Mono 80dB (G)(B)(A)
Stereo 76d8 (G)(B)(A)
Harmonic Distortion
Mono 1 kHz
Stereo 1kHz
Harmonic Distortion (40kHz Dev)
Stereo 1 kHz
Stereo Separation (I HF)
1kHz
Frequency Response
50Hz to 10kHz
Sub-carrier Product Ratio (I HF)
•AM Section
Tuning Range
Usable Sensitivity
Selectivity
Signal to Noise Ratio
Image Response Ratio
Spurious Response Ratio
Harmonic Distortion (400Hz)
•GENERAL
Power Supply
US & Canadian Models
General Model and R-70M
European Model
British & Australian Models
Power
Consumption
AC Outlet
Switched
Unswitched
Dimensions (W x H x D)
Weight
(U) ..... U.S.A . model
(C) ..... Canadian model
(A) ..... Australian model
0.1%
0.15%
0.15% (G)
40d8
±o.3d8
55d8
510 to 1620kHz (U)(C)
513 to 1620kHz (G)(A)(B)
510 to 1620kHz or
513 to 1620kHz (R)
250µV/m
25dB
52dB
40dB
50d8
0.3%
120V AC, 60Hz
11 OV, 1 20V, 220V,
240V AC, 50/60Hz
220V AC, 50Hz
240V AC, 50Hz
200W (U)(C)
320W (G)(A)(B)
120W (R)
200W max.
200W max.
435 x 122 x 386mm
(17-1/8 x 4-3/4 x 15-1/8)"
8.3kg (18.3 lbs)
(G)
.. ... European model
(B) ..... British model
(R) ..... General model
Specifications subject to change without notice.

• TO SERVICE PERSONNEL
(Prepared in accordance with UL Standard
1270)
Before service of this appliance by you, please
carefully read this service manual.
Please make Leakage-current or Resistance
measurements by suitable meter
to determine
that exposed parts are acceptably insulated
from
the supply circui1t before returning the
appliance
to the customer.
A PROBE WITH SHIELDED LEAD.
B SEPARATED AND USED
AS CLIP WHEN
MEASURING CURRENTS FROM ONE
PART OF APPLIANCE TO ANOTHER.
Confirm that the leakage current is not more
than 0.5mA AC.
• REAR PANEL
,.. U.S.A. & Canadian models
,.. General model (R-70M)
R-70/R-70M
LEAKAGE CURRENT MEASUREMENT CIRCUITS
Jv~-~~~ I
/~~ --- / GR~
S1 GROUNDING
~ OPEN ) ~_cNSULATl~G
L_ --------------;~ TABLE
GROUND SUPPLY CONDUCTOR B
Appliance intended for connection to a 120 volt power supply.
~~~~~~u l~o~' M
,;~J,l~IC ::~~~.
~ Q ~lijJ Q
,.. British & Australian models
,.. European model
R: illl :
~j Q ~lijJ Q
L;J : liftl ,
@YAMAHA
2.:iovo..rs
50Hl ~-
~~ ~Kl CO.,LTO
@YAMAHA ~'""
220VO,_~ 320WAT'f5
5QHz'\..
~~~~Kl CO.,lTD
2

I
3
R-70 / R-70M
L VIEW
•1NTERNA
TRANSFORMER . GA66450
0 POWER dian models .
66470
SA & Cana . GA
U· · · del · 66480
European mo . odels : GA
. . h & Australian m . GA66460
Bnt1s el R-70M .
General mod ,OARD (1)
@MAIN CIRC~~I~ BOARD (1)
A TUNER CIR
w END PACK
0 FRONT NTENNA
0 AM LOOP ACUIT BOARD (2)
A TUNER CIR
v SWITCH
0 POWER TK2250Y
(i) POWER IC: ~C · STK3061 y
0 PRE DRIVE 3~0
• MPX IC: LA37H (E, F)
• IF IC: µPC57 BOARD (3)
4B MAIN CIRCU . IT
numbered)
: f disassembly as
ts in order o tom cover.
RES (Remove par .
the top and bot
OC
EDU b removing
BLY PR . unit is possible y
DISASSEM I ost circuit boards in this ·ng Heat Sink
of am @) Remov1
I C
ement of the parts 4 p;pe Lock "© 'i©
•Rep a 11 / ' i'-- --._J
. Top Cover ~!~ j~~ I
CD Removing p nel ~ '· •
~ =:~~~:~~ ::~~~m
3
Cover l~ ililll~h°"i\
l lllllll 1t !o ~ ;pe Foxtuce
I lt 7i Block. !Heat Sonk
~ . Heats;nk · / I
v ·. I
Fig. 1
Fig. 2
\ . ., board 111
Tuner c1rcu1
Fig. 3

R-70 1 R-70M
ADJUSTMENTS
<CONFIRMATION OF AUDIO SECTION>
Before adjustment
Note 1: After the power switch is pushed on, wait for 5 minutes before measuring, to be sure of the most stable operation.
Step
Confirmation
1
Power supply voltage
2 Gain
4 DC
offset
5
PHONO amp
<TUNER ADJUSTMENT>
•Before adjustment
Test point
+8
-8
+16
-16
+12
+5
+a
-a
IC414, across pin 4
and E (Leh)
across
pin 13 and
E (Reh)
IC414, across pin 4
and E (Leh)
across
pin 13 and
E (Reh)
PL,PR
Rating or standard
Adjustment method
+43V ±av
-43V ±av
Make sure that AC line voltage
+16V ± 2V
comes within
-16V ± 2V
Models AC line voltage
+12.5V ± 1V
+5.5V ± 0.5V
u.c
120V ± 10%
+av± 1v
G
220V ± 10%
-av± 1V
A. B
240V ± 10%
+10V±1V
Apply a 1kHz,100mV sine wave
signal to the points "BL" and "BR"
OV ± 70mV
Apply a 1 kHz, 2.5mV sine wave
signal to PHONO INPUT
+120mV ± 20mV
Apply a 1kHz, 160µV sine wave
signal to PHONO INPUT
Note 1) After the Power switch is pushed on, wait for 5
minutes before measuring, to be sure of the
most stable operation.
•Measuring instruments abbreviation
FM SG : FM signal generate.
SSG : Stereo signal generator
AM SG : AM signal generator
Note 2) Adjust the OSC coil and I FT with a nonferrous
screw driver.
Note 3) Do not forget to keep the bottom cover on.
1. FM TUNER SECTION
OSC : Oscilloscope
DIST. M: Distortion meter
FC : Frequency counter
ACVM : AC volt meter
Remark
No load
----
PHONO
selector
set "MM"
PHONO
selector
set "MC"
•Use 200Hz to 15kHz bandpass filter to measure the
REC OUT.
•Set the switches to the following positions.
•On step 1 and 2 connect the auxiliary center meter
(Ji00036 or similar) in series with the resistor 1Okr!
between TP1 (S OUT) and TP2 (NVcc).
Auxiliary center meter
Step
Adjustment item
Connection
Instrument required
terminal
1
Discriminator
TP1 "'TP2
Aux iI iary center
balance adjust-
(Sout)(NVcc)
meter
ment
2
Station center set 300S1
FM
FM SG
confirmation
ANT
~98MH' ±1 kH'
l
70d8µ (75.2dBf)
MONO 1kHz
100% MOD
TP1 "'TP2
Auxiliary center
(S out) (NV cc) meter
3
Monaural distor- 300S1 FM FM SG
tion adjustment ANT
[98MH' ± 1 kH' j
70dBµ (75.2dBf)
monaural 100Hz or
400Hz
REC OUT
100% MOD
(TP6, TP7)
DIST. M. OSC BPF
INPUT . . . . . . . TUNER
Band Select . . . . FM
TUNING/MODE AUTO
VOLUME . . . . . Min
Adjustment
Adjustment method
Rating or
Remarks
locations
standard
T102
Adjust so that the
(DISCRI
pointer of the auxil-
CENTER)
iary center meter points
to 0 at detuned point.
TUNING SW
Confirm that the auxil-
~up or DOWN
iary center meter
deflects to 0 when
tuned to signal of
FM SG
VC101 Reduce
distortion to
Less than
Confirm that
(MONO DIST) minimum -64d8 all signal Q
Signal Q
indicators
light
I
4

R-70 / R-70M
Step Adjustment item
Connection
Instrument required
terminal
4
VCO adjustment 300!1 FM FM SG
I
ANT
[98MH' ±1 kH' ]
70dBµ (75.2dBf)
Unmodulated
TP4 "'TP5 Resistor 2.2Mn
(19M) (+12)
TP3 "'GND
FC
(19kHz)
5 Stereo
distortion
300!1 FM FM
SG, SSG
adjustment
ANT
[98MH' ±1 kH' ]
70dBµ (75.2dBf)
STEREO L, R
1kHz,100% MOD
REC OUT DIST. M, OSC
(TP6,
TP7)
BPF
6 Separation
confir-
300!1 FM FM SG, SSG
mat ion
ANT
r98MHd1kH' l
70dBµ (75.2dBf)
STEREO Lor R
1kHz,100% MOD
REC OUT
OSC, ACVM, BPF
(T.P6, TP7)
7
Pi lot cancel
300!1 FM
FM SG, SSG
adjustment
ANT
[98MHd 1 kH' ]
70d8µ (75.2d8f)
PILOT9% MOD
REC OUT
osc
(TP6, TP7) Disconnect BPF
8
If offset adjust-
300!1 FM
FM SG
ment
ANT
[98MHz ±1 kHz J
70d8µ (75.2dBf)
TEST termi- Short
nals
(K4, T6)
9
Auto search
300!1 FM FM
SG
reception confir-
ANT
[98MH' ± 1 kH' ]
mat ion
20d8µ (25.2dBf)
MONO 1kHz
100% MOD
2. AM TUNER SECTION
•Connect the AM dummy antenna for adjustment.
Step Adjustment item
Connection
Instrument required
terminal
I 1
Sensitivity confir- AMANT
AM dummy antenna
mat ion AM SG
l 400H,, 30% MOD l
50d8µ
630kHz ±0.1 kHz
1440kHz ±0.1 kHz
1080kHz ± 0. 1kHz
REC OUT
OSC.
(TP6, TP,7)
DST.M
ACVM
2 Signal Q
indica- AM ANT
AM dummy antenna
tor confirmation
AMSG
[1080kHz ± 0.1kHzJ
80d8µ
3
Auto search
AM ANT AM dummy antenna
reception confir-
AMSG
mat ion
[1080kHz ±0.1 kHz J
60d8µ
5
Adjustment
Adjustment method
Rating or
Remarks
locations
standard
VR103
CD Connect resistor 19kHz ±
Confirm that
(VCO)
2.2Mn between TP4
10Hz stereo indi-
(19M) and TP5 (+12)
ca tor Iights
and force the set in
up.
Stereo indica- stereo
mode. After adjust-
tor
® Adjust so that VCO
ing, remove
frequency is at 19kHz
the FC and
the 2.2Mn
resistor.
T101 Same
as step 3 Less than
(ST DIST)
-48dB
G model
only Less
than -33dB
-- ~ -
Confirm that the leak- Less than
age level of the
26dB
opposite channel is
minimum
VR102
Observe waveform on More than
(PILOT
the OSC and adjust so 46dB
CANCEL)
that carrier leakage
level reduced
to
minimum
VR106
By shorting TEST
After adjust-
(FM FINE)
terminals, the counter ing, open the
shifts by one digit, then TEST termi-
adjust so that the
nals.
lowest effective digit
comes to 9 or 0.
This figure
98.0MHz-c~g.·~
When shifting
TUNING SW Confirm that auto
Confirm
-+UP or
search reception is
that muting
DOWN possible
with the tun-
is performed
ing button.
at auto recep- I
ti on.
•When once the test terminals are shorted in adjusting
FM, the frequency
of 630kHz, 1440kHz, and 1080
kHz is memoried at each AM preset position 1, 2 and 3.
Adjustment
Adjustment method
Rating or
Remarks
locations
standard
Confirm the maximum
less than
sensitivity
55d8µ
PRESET
P1
P2
P3
Confirm that all signal
Confirm that
PRESET
Q indicators light
all signal 0
P3
indicators
Signal Q go
out at
detuned
point
TUNING SW
Confirm that auto
-+UP or
search reception is
DOWN possible
with the
tunning button.
I

3. DIGITAL CONTROL SECTION
Step Adjustment item
Connection
Instrument required
Adjustment
terminal
locations
1 Preset
memory
300D FM FM
SG
FM/AM SW
confirmation
ANT
[98MH' ±1 kH'
l
70dBµ (75.2dBf)
MONO 1kHz TUNING SW
100% MOD MEMORY SW
AM ANT
AM dummy antenna
PRESET SW
AM SG
[1080kH' ±0.1kH']
80dBµ
400Hz, 30% MOD
2
Last channel
POWER SW
memory confir-
mat ion
•TEST POINT
Main circuit board (1)
D
DD D420 J
490
,.},_ o~
@---@.. l..:!EJ u
DD ~ J497 -
DD
~
J499
DD ~
,.j • ~
A R528
~
IC415
IC414
1sloooooooooooooooo I,
R503
R501
~
-c:J-~
R-70,/R-70M
Adjustment method
Rating or
Remarks
standard
CD Memorige the PRE-
CD Press the FM button
SET P1 at FM SG
and tuned the 98MHz
frequency.
with AUTO seach
® Memorige the PRE-
+
SET P2 at AM SG fre-
Press the Memory
quency.
button.
@Confirm that the fre-
t
quency memorized is
The Memory indicator
recalled.
lights about 3 seconds
t
Press the PRESET P1
during the Memory
indicator lights.
t
The PRESET LED of
P1 lights.
® Press the AM button
and tuned the 1080kHz
with AUTO seach.
+
Press the Memory button
t
The Memory indicator
lights and the PRESET
LED of P1 flashes.
t
Press the PRESET P2
t
The Memory indicator
goes out and the PRE-
SET LED of P2 lights.
CD Press the PRESET P1
®Turn the power
switch off.
@After about 5
seconds,
turn the power
switch on.
©Confirm that the
@ The PRE-
PRESET P1 memorized SET of P1
not
is recalled. lights
Tuner circuit board (1)
VR106
:0
FM FINE
IC107 I
IC106 5
T6mk4
TEST
-c:::H!l
R159 ~
I FRONT END I
0 J~,~'"
T102 VC101
[QJ@NO
DISCRI DIST
CENTER
~ D~
@-il-
C171
rn
~
~
VR103
"'vco
~ tJ
VR102 IT.P!l -
PILOT D··~
CANCEL R152
!
I
6

-;-- ~~A ~ ~- l~~ ~B~~--L
R-70 / R-70M
c
• PRINTED CIRCUIT BOARD (Pattern side)
1
•Key circuit board (1}
2
•Main circuit board (2/5 ,..._, 5/5)
Main C.Board (3)
3
Main C.Board (5)
~
TR~2~
•
From Main C.Board (I )
4
From Main C. Board ( I )
Main C. Board (2)
VOLUME-©- BALANCE
5
PHONES
,.....,,(_( __ ,. From Main C. Board( I)
[fu' i'I" ----=----.:o 1I
From Main C. Board (I)
SPATIAL EXPANDER
10 5 0
Main C.Board (4)
6
7
D

A
(Pattern side)
•Main circuit board (1/5)
11
...,
0
3
3:
0
3·
()
OJ
0
0
...,
a.
2
,......,
(JJ
~
31
fT1
~
0
::0
-<
c
"'O
1a
d(/)
z
ITI
I
0
0
~
z
4 l
( N I ~~ - ~
C;fj ,: : r Jl C449
+"" j L-J''I · ~
-I
0
s:
0
::J
()
OJ
0
51 0
...,
a.
,......,
(JJ
6
B
11
...,
0
3
3:
0
:::J
()
OJ
0
0
...,
a.
.......
(JJ
r
-I
0
3:
0
::::>
()
OJ
0
0
...,
a.
,......,
~
l
c D
To Key C. Board
From Key
C. Board
From Tuner C.
Board { I )
E F
To Main C.Board {3)
From Tuner C.Board (2)
G H
R-70/R-70M
~ z
0 ""O
~ c
~ ~
i;!
1 1 ~ ~
CD
""O
::0 ,,,
fT1
(')
I\)
0
c
-t
-t
l>
~ };!
di ""O
::0 ,,,
fT1
(')
0
c
-t
. jij;N~~.-JTR428 l w~ ·· i-~· · ~ J ~ ~ ai~~·~ J t~ ~~
~ · ·. TR-l~~ J~ r!t J~ ~J ~ · ~ [ - ~ ·- I - - N - -- , ij II fl t ~1
~~~~ _- -:J .,.
2.,
wa --:-" ~ - .. ··' J.· !! ~= · , ~· · _ ,., _ .. , .... .. -· l ul
l
To Main C. Board (2)
From Power Transformer
@
CD
®
(/)
""O
,,,
l>
::;i;:
,,,
::u
@ (/)
l>
®
The following parts and values differ from each
model, so refer to the corresponding column.
C401 "'406
C513.514
C529, 531, 533
535.537
J641
D A R u. c. LRI G
Set
8

2
3
4
5
6
9
A
R-70/R-70M
(Pattern side)
•Tuner circuit board (1/2)
B c
FM ANT AM ANT
750UNBAdL300.nBAL GND
D
,......
ro,.....
- >..
"O -
.... c
0 0
o_
m G>
. 'U
Uo
a; E
C-
::J 0
I- a;
E ~
o~
~-
"O
....
0
0
m
F?>-rilfil ,. • ~ •. . "' - +.r ~ I· .. u
To Key C. Board
>..
Q>
~
{:.
E
INPUT
PH ONO
• Tuner circuit board (2/2) (0 ®
F G
Tuner C.Board(3)
(General model
~ - I ~tt--f ~ 2' ~ II
0
li ~. lll ~t ~ I and R-70M)
0 -
al ._.. l.J• ' b!I~ ~ - ~2
U
~ ~ "11 _ J ETRI J. - ~
0
- G - 12- .... ~ ,...... To Tuner C.Board (I)
o r I " ~ 301 -1 · ~ - f' ·) _ t
>.. 0 1Tlfl . - ~ ' 0 0 ~ - -
Q> al liRl48 ~ ' R!Op~ ~ "O
~ u l' 2JIJ!; 1 t ~~~ -:: t:.!. '- i ~ ~ J
1
]
5
R!pc- TR1§ ~ 5
E ._ il j :t r- Ol.l trr t= 111 i i o
0 Q> _J_ l - - '(;;j,,_ ;;,_, lf") ~ I') -I ~~ n · m
L... c ll a: l'-'. iii D: 1£ -
LL :::J ' - -. ~ ~ ~ I ~R 6 u
1- , o ~l u f95~;;;f i1 ~fi L -..,,o c
I
~ l4~~ <f" J.~~991l: - ~ =
E :fff-- N ~ - • 2J.. ~ R2lil8 0
o ~ ~ ~99+-~ cm -"'T ~ :iE
._ D:1'J~.6 ~... ~
LL m;~kJ ~- fuJ.. ~ ;' .,~J~ . ~r ~ r - ~ ~~f {!. FREQUENCY STEP
I ·.·· 1 ' i~~ T~ , ;.t~ J..:.~ '' i 1~ ~ ~ t
1
!"' r FM 50kHz IOOkHz
~ ·- ~ • -"1' ~'I"" •t -:n >~ AM 9kH' IOkH•
H
:1•-tt _,,,. ,,.....__. To Main C. Board ( I )
The following parts and values differ from each model, so refer to
the corresponding column.
G
C203.204
~ ~ ~ ..,,~ . ~ ' b · ~.~......, _ "-- I • To Key C. Board T103
~=•;· J · r M'I' "' ::: 1 ... To Tuner C.Board (2)
PiN CONNECTION DIAGRAM OF TRANSISTORS, DIODS AND ICS.
25A777
25A970 (GR, BL)
25A999 (E, F)
25A 1127 (R, 5, T)
25C1923
25C2320 (E, F)
2.SC2634 (R, 5, Tl
250786 (Q, R, 5l
250656 (D, E, Fl
2SD1012 (G, H)
2501302 (R, S)
~
CB
15584 HZ9A-1
25C982 151555 HZ12B2
2SC1509 (P, 0, R,
5l
152473 HZ18-IL
2SC2878 ~ ~g~~~
~~Anode
ECB Cathode
40481
RB402 (LFD)
S4VB20
@
258507
25C1983
2SD313 (E, F)
SIRBA NJM4558DV
.P
E
~~
µPC577H (E, Fl
~
M54459L
M5219L
M521~L
M5220L
8
I
LC4066B
.µPD4066BB
L109.110
L107, 108
R283,284
R285,286
R129
R131
SW101
R132
J161
J163
C103,104
R282
TUNER (3)
J240, 243 -·- - -· - -· -
5TK3061 Y
~
LC~I~
~JI'·-· CE
I
LA3380
~
.
LC
. 650 .2-C ... -6 .0 ..-4
10 ~LC6505C-612 . /
2 / "
.~<,-
5TK2250Y