Sony HCD-D290 / HCD-G3300 / HCD-XB3 Service Manual ▷ View online
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HCD-XB3
SUPPLEMENT-1
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HCD-D290/G3300/XB3
SERVICE MANUAL
Subject: TCB Board (East European, CIS Models)
1. ELECTRICAL ADJUSTMENT
1. ELECTRICAL ADJUSTMENT
FM Polar Adjustment
2. DIAGRAMS
Printed Wiring Board –TUNER Section –
Schematic Diagram – TUNER Section –
Block Diagram –TUNER Section –
Schematic Diagram – TUNER Section –
Block Diagram –TUNER Section –
3. ELECTRICAL PARTS LIST
TCB Board (East European, CIS Models)
1.
ELECTRICAL ADJUSTMENT
Procedure :
1. Set the modulation of FM RF SSG to AUDIO 1 kHz, 10 kHz
1. Set the modulation of FM RF SSG to AUDIO 1 kHz, 10 kHz
deviation according to “Connection 1”.
2. Tune the set to 69 MHZ.
3. Adjust the RV1702 so that the reading of frequency counter
3. Adjust the RV1702 so that the reading of frequency counter
connected to TP1702 becomes within 31.25 kHz ± 0.05 kHz.
(VCO adjustment)
(VCO adjustment)
4. Then record the reading of the level meter connected to TP1701
5. Set the modulation of FM RF SSG to AUDIO 31.25 kHz, 10
5. Set the modulation of FM RF SSG to AUDIO 31.25 kHz, 10
kHz deviation according to “Connection 2”.
6. Tune the set to 69 MHz.
7. Set the CT1701 to be mechanical center.
8. Adjust the L1701 so that the reading of the level meter con-
7. Set the CT1701 to be mechanical center.
8. Adjust the L1701 so that the reading of the level meter con-
nected to TP1701 become maximum.
Then adjust the CT1701 so that the reading of the level meter
connected to TP1701 becomes maximum.(SUB CARRIER
PEAK Adjustment)
Then adjust the CT1701 so that the reading of the level meter
connected to TP1701 becomes maximum.(SUB CARRIER
PEAK Adjustment)
9. Adjust the RV1701 so that the level at the moment becomes
14 dB higher value than the level recorded in step 4. (SUB CAR-
RIER LEVEL Adjustment)
RIER LEVEL Adjustment)
FM Polar Adjustment (East European, CIS Models Only)
Connection 1:
FM ANTENNA terminal
(75
(75
Ω
)
75
Ω
coaxial
set
FM RF SSG
Carrier frequency : 69 MHz
Output level
Output level
: 1 mV (60 dBµ) (at 75
Ω
open)
Modulation
: AUDIO 1 kHZ, 10 kHz deviation
Connection 2:
Carrier frequency : 69 MHz
Output level
Output level
: 1 mV (60 dBµ) (at 75
Ω
open)
Modulation
: AUDIO 31.25 kHZ, 10 kHz deviation
(EXTERNAL MODULATION)
FM ANTENNA terminal
(75
(75
Ω
)
75
Ω
coaxial
set
FM RF SSG
AF OSC
Audio 31.25 kHz
external
modulation
terminal
modulation
terminal
Adjustment Location :
East European, CIS models
East European, CIS models
[TCB BOARD] (Component Side)
CT1701, L1701
Sub Carrier Peak
Adjustment
Sub Carrier Peak
Adjustment
RV1702
VCO Adjustment
VCO Adjustment
RV41
IC1701
RV42
RV1701
CT1701
TP1702
(VCO)
(VCO)
(FILTER) TP1701
TM1
FE1
+
–
–
frequency counter
+
–
–
level meter
IC41
L1701
RV1702
RV42
FM Tuned
Level
Adjustment
FM Tuned
Level
Adjustment
RV41
AM Tuned Level
Adjustment
AM Tuned Level
Adjustment
RV1701
Sub Carrier Level
Adjustment
Sub Carrier Level
Adjustment
– 2 –
HCD-D290/G3300/XB3
• Semiconductor
Location
Ref. No. Location
D21
G-2
D41
G-4
D42
H-5
D43
H-5
D1701
J-4
D1702
J-4
D1703
H-4
D1704
J-4
IC21
G-3
IC41
E-5
IC1701
I-3
IC1702
I-6
Q1
F-3
Q2
F-3
Q3
E-3
Q4
E-3
Q5
E-3
Q9
D-3
Q11
C-5
Q12
B-5
Q13
B-4
Q14
B-4
Q1701
I-3
Q1702
J-4
Q1703
J-4
2.
DIAGRAMS
• IC Block Diagrams
IC1701
IR3R42 (East European, CIS Models)
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
1
2
3
4
5
6 7
8
9
10
20
19 18
17
16
15
14 13
12
11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND
VCO
LPF1A
LPF1B
DETIN
LPF2A
LPF2B
SUBIN
SUBOUT
MON
IC1702
MC14053BCP (East European, CIS Models)
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN
4.8 Vp-p
222 ns
•
Waveforms
!™
IC21
@¢
(XOUT)
4.8 Vp-p
2.2 ns
!£
IC41
@£
(VCO)
Note
•
X
: parts extracted from the component side.
•
¢
: internal component.
– 3 –
STEREO
TUNED
MUTE
ST-CE
COM-DIN
COM-CLK
COM-DATA
TM1
ANTENNA
FM 75
Ω
COAXIAL
AM
ANT IN
IF OUT
F OUT
VT
FE1
FM FRONT END
ST +10V
FM IF AMP
Q1 – Q4
CF1
10.7MHz
CF3
10.7MHz
1
FM IN
5
3
2
26 25 24 23
22
21 20
17
16
15
14
13
12
4
27
6
Q12
MW SW
Q14
LW SW
Q13
MW SW
Q11
MW SW
9
11
17
15
10
Q9
LW SW
REG
29 AM OSC
AM RF IN
FM
FM OSC
VT1
MW
MW
RV42
FM
TUNED
LEVEL
3
4
5
6
30
14 15 11
FM SD
AM / FM
VCO STOP
IF BUFF MUTE
23
9
5
13
12
2
AM
SD
AM
SD
AM MIX
AM IF
IFT41
X42
450kHz
X43
456kHz
X41
10.7MHz
TUNED
LEVEL
AM
PEAK
L1701
CT1701
CT1701, L1701
RV1701
TP1701
(FILTER)
SUB CARRIER
RV41
MPX IN
AM / FM
8
5
9
4
3
7
STEREO
TUNED
FM / AM MPX
IC1702 SWITCH
IC41
24
22
OUT R
RCH
L IN
L OUT
R CH
POLA
L IN
L IN
21
AMP IN L
OUT L
LPF
20
18
14
7
2 12 8
1 24
AM OSC
FM
VCO STOP
FM / AM IF
IF REQ
X IN
X OUT
CE
DI
CL
DO
AMP OUT L 16
A MAIN SECTION
(See page 43 on service manual)
PLL
IC21
FE2
MW / LW FRONTEND
•
R CH :Same as L CH
•
SIGNAL PATH
:FM
:MW
:LW
X21
4.5MHz
AM IF
DET
VCO
Q5
+B SW
68
67
65
66
72
69
70
11
LEVEL
SUB CARRIER
2
3
IN
20
19
GATE
WAVE
FORM
14
S&H
BUFFER
PHASE
COMP.2
TRIGGER
10
9
MUTE
OSC
1/2
1/2
PHASE
6
7
17
18
IC1701 POLAR DECODER
R CH
TP1702
(VCO)
PHASE
COMP.1
RV1702
VCO
Q1702
SW
13
FM LOW
Q1703
SW
+7V
Q1701
SW
B MAIN SECTION
(See page 44 on service manual)
05
4
LPF41
L OUT
R OUT
VCO
STOP
STIND
HCD-D290/G3300/XB3
BLOCK DIAGRAM –TUNER Section – (East European, CIS Models)
– 7 –
– 8 –
Display
