Sony ZS-D5 Service Manual ▷ View online
ZS-D5
— 17 —
— 18 —
— 19 —
SECTION 6
ELECTRICAL ADJUSTMENT
0 dB = 0.775V
TAPE RECODER SECTION
PRECAUTION
1. Perform adjustments in the test mode.
2. Demagnetize the record/playback head with a head
2. Demagnetize the record/playback head with a head
demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
4. After the adjustments, apply suitable locking compound to the
parts adjust.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
6. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)
should be completed before performing recording circuit
adjustment.)
7. The adjustments should be performed for both L-CH and R-
CH.
•
Standard Record:
Deliver the standard input signal level to the input jack and set the
VOLUME +/– keys to obtain the standard input and output signal
level.
VOLUME +/– keys to obtain the standard input and output signal
level.
•
Standard input level
•
Standard output level
•
Test tape
Record/Playback Head Azimuth Adjustment
Note:
• Start adjustment after head has changed the direction.
(When head is positioned in the FWD direction of tape
running, start adjustment with REV .)
running, start adjustment with REV .)
• The adjustment must be ended with cw turning of
adjustment screw.
Procedure:
1.
1.
Mode : REV playback
LINE IN
10 k
Ω
0.25 V (–9.8 dB)
Input Pin
Signal source impedance
Input signal level
Test Tape
P-4-A100
WS-48A
Used for
REC/PB/ERASE Head azimuth
and phase adjustment.
and phase adjustment.
Tape speed adjustment
Signal
10 kHz, -10 dB
3 kHz, 0 dB
Output Pin
Load impedance
Output signal level
SP OUT (L, R)
H.P OUT
3.2
32
0.775 V (0 dB)
0.10 V (-18 dB)
Tape Speed Adjustment
Procedure:
Mode :
FWD playback
1.
Playback the standard tape in FWD mode.
2.
Adjust the variable resistor of the motor (M691) until frequency
counter reading is from 2,985 to 3,015 Hz.
counter reading is from 2,985 to 3,015 Hz.
3.
Confirm that the freqency difference between the tape top and
end is within 3 %.
end is within 3 %.
set
+
–
–
level meter
test tape
P-4-A100
(10KHz, –10dB)
P-4-A100
(10KHz, –10dB)
LINE OUT
47
k
k
Ω
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
so that outputs match within 1dB of peak.
3. Phase Check
Mode: REV playback
Note:
Adjustment must be completed by cw turning of adjustment
screw.
After the adjustment, lock the screws with locking
compound.
screw.
After the adjustment, lock the screws with locking
compound.
4. Repeat steps 1 to 3 FWD playback mode.
5. Check that phase difference between L-CH and R-CH is from o
5. Check that phase difference between L-CH and R-CH is from o
to 90 degrees.
6. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location:
LINE OUT
test tape
WS-48B
(3 kHz, 0 dB)
WS-48B
(3 kHz, 0 dB)
set
frequency counter
+
–
100 k
Ω
Oscilloscope Lissajous pattern
in phase
good
wrong
45
°
135
°
90
°
180
°
test tape P-4-A100
(100 kHz, –10 dB)
(100 kHz, –10 dB)
L-CH
R-CH
47 k
Ω
LINE
47 k
Ω
oscilloscope
set
V
H
Adjustment screw
(FWD)
(FWD)
Adjustment screw
(REV)
(REV)
0 dB = 1
µ
V
TUNER SECTION
[Setting during adjustment]
Function mode: RADIO
VOLUME: Maximum
Function mode: RADIO
VOLUME: Maximum
• AM Section
• FM section
AM RF SSG
Put the lead-wire antenna
close to the set.
close to the set.
30% amplitude
modulation by
400 Hz signal
modulation by
400 Hz signal
Output level: as low as possible
to FM RF (FM IN)
FM RF SSG
22.5 kHz frequency
deviation by 400 Hz
signal
deviation by 400 Hz
signal
Output level: as low as possible
set
32
Ω
VTVM
HEADPHONES
+
–
•
Repeat the proceduresin each adjustment several times for the
maximum level meter indication.
maximum level meter indication.
•
The frequency coverage and tracking adjustments should be
finally done by the trimmer capacitors.
finally done by the trimmer capacitors.
AEP/Italian/UK/E model
LW RECEPTION FREQUENCY COVERAGE CHECK
Frequency indication
151 kHz
273 kHz
Digital voltmeter reading
0.6 to 0.7 V
4.7 to 5.7 V
Adjustment
CT3
check
( ) : US/Canadian model
MW/AM TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L3
CT2
621 kHz (620 kHz)
1,404 kHz (1,400 kHz)
( ) : US/Canadian model
MW/AM RECEPTION FREQUENCY COVERAGE CHECK
Frequency indication
531 kHz
1,611 kHz
(530 kHz)
(1,710 kHZ)
Digital voltmeter reading
0.6 to 1.2 V
4.5 to 5.5 V
(0.9 to 1.0 V)
(5.2 to 6.2 V)
Adjustment
L4
check
AEP/Italian/UK/E model
LW TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L3
CT5
162 kHz
261kHz
FM RECEPTION FREQUENCY COVERAGE CHECK
Frequency indication
87.5 MHz
108 MHz
Digital voltmeter reading
0.9 to 1.3 V
3.4 to 4.4 V
Adjustment
L2
check
FM TRACKING ADJUSTMENT
Adjust for a maximum defection of level meter.
L1
CT1
87.5 MHz
108 MHz
Adjustment Location:
TUNER board (Side A)
[US/CND Model]
IC701
JW126
JW135
L3
CT2
AM Tracking
L2: FM Reception
Frequency coverage
Frequency coverage
CT1
L1
FM
Tracking
Tracking
L4: AM Reception
Frequency coverage
Frequency coverage
Measurement Point:
MAIN board (Side B)
[AEP/IT/UK/E model]
L3 (LW)
CT5
CT4 L3 (MW)
LW Tracking
MW Tracking
L4
CT2
L2: FM Reception
Frequency Coverage
Frequency Coverage
CT1
L1
FM
Tracking
Tracking
CT3: LW Reception
Frequency
Coverage
Frequency
Coverage
MW Reception
Frequency Coverage
Frequency Coverage
ZS-D5
— 20 —
— 21 —
— 22 —
7-1.
CIRCUIT BOARD LOCATION
7-2.
BLOCK DIAGRAM — TUNER/CD SECTION —
SECTION 7
DIAGRAMS
MAIN board
TC board
TERMINAL board
LAMP board
CONTROL board
CD MOTOR board
SW board
TUNER board
SWITCH board
H/P board
POWER board
BATTERY(L)board
BATTERY(S)board
19
B.P.F
FL1
L1
AU7.5V
L2
L3
FERRITE-ROD
ANTENNA
AU7.5V
AU7.5V
D1
D2
D3
ANTENNA
ANT1
FM
TELESCOPIC
1
23
21
24
22
FM
MIX
FM RF I
FM RF O
FM OSC
AM RF
AM OSC
FM
OSC
AM
MIX
AM
OSC
OSC
3
MIX OUT
17
RF IF
AMP
IF
BUFFER
Q18(US,CND)
CF1
CF2
CFT1
6
7
FM IF
AM IF
FM
MPX
FM/AM
BUFFER
FM
DET
AM
DET
16
A
MPX
18
MUTE
11
12
10
ST IND
TU5V
R-CH
9
FM/AM FRONT-END
IC1
13
22
5
AU7.5V
QUAD
VCO
VCC1 VCC2
TO
TC SECTION
CF4
CF3
H FREQ
CUT
Q1(US,CND)
B
TO
TC SECTION
CE
17
21
10
16
18
9
8
Q3(US,CND)
14
15
MO/ST
BAND
14
7
6
5
4
1
2
PLL
L.P.F
Q17(US,CND)
+B
Q19(US,CND)
PLL
IC3(US,CND)
FM
AM
VDD
XO
XI
PD1
CK
DA
CD
IF
P0
P1
Q4(US,CND)
TU5V
X1
75kHz
CE
CK
DA
CD
OPTICAL PICK-UP
BLOCK
(KSM-213CDM/M-S)
LD/POWER
CONTROL
Q701
41
VCC
CD5V
A
VC
C
B
D
E
F
VC
LD
GND
A
C
B
D
E
F
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
36
37
42
39
38
51
APC
FOCUS PHASE
COMPENSATION
DECODER
SERIAL/
PARALLEL
CONVERTER
FE
AMP
RF
AMP
IIL
TTL
TTL
IIL
COMAND
VC
TRACKING PHASE
COMPENSATION
LD
PD
E
F
PD1
PD2
6
25
24
26
21
20
23
22
33
27
SENS 1
SENS 2
19
RFO
FOK
C OUT
DATA
XLT
CLK
XRST
LOCK
16
13
FEO
TEO
SLO
IC703
F/T COIL
SL/SP MOTOR
DRIVER
CD RF/SERVO
PROSSESOR
IC701
18
VCC
CD5V
10
4
T IN
9
7
6
VR
PD
PD
28
27
22
21
11
F IN
29
SL IN
25
SP IN
15
MUTE
F+
F
T+
T
SL+
SL
SP+
SP
M
M
MOTOR
M702
SLED
SLED
MOTOR
M701
SPINDOL
S701
LIMIT
EFM
DEMO.
44
23
14
13
15
16
17
100
29
27
22
18
XRST
CLV
SERVO
DIGITAL
CLV
D/A
I/F
SUB CODE
PROSSESOR
CPU I/F
50
10 11 12 7
8
9
80
75
LOCK
MDP
XLON
SPOA
SENS
SCOR
SQSO
SQCK
CLOCK
XLAT
DATA
CLK
XLT
DAT
SE
CN
FOK
RF
72
54
52
51
73
55
53
SERIAL
I/F
PWM
PWM
71
84
95
89
90
D OUT
PCMD
BCK
LRCK
EMPH
AL
AR
XTAI
XTAO
X701
SYSM
VDD
R-CH
L-CH
D IN
GND
2
1
3
CD5V
OPTICAL
DIGITAL
OUT
IC441
L-CH
5
C XLAT
6
C DATA
8
C CLK
11
C SQCK
12
C SQSO
9
C SENSE1
1
C SCOR
7
B MUTE
25
R CONT
23
R DATA
22
R CLK
24
R CE
13
C SENSE2
4
C XRST
21
R ST
CD
DA
CK
CE
IC801(1/2)
SYSTEM CONTROL
CD DIGITAL
SIGNAL PROCESSOR
IC702
16
:FM
:CD
:DIGITAL OUT
• SIGNAL PATH
Q15
MUTE
SWITCH
MUTE
Q16
MUTE
AU7.5V
Q18
TU7.5V
AEP,IT,UK,E
Q23(AEP,IT,UK,E)
US,CND Model
PD1
Q14(AEP,IT,UK,E)
11
INV.
INV.
MW-H
LW-H
Q22
Q21
MW-L
LW-L
AEP,IT,UK,E Model
Q13(AEP,IT,UK,E)
IC2(AEP,IT,UK,E)
Q12(AEP,IT,
UK,E)
UK,E)
Q2(US,CND)
Q10(AEP,IT,
UK,E)
UK,E)
Q9(AEP,IT,UK,E)
Q11(AEP,IT,UK,E)
Q15(US,CND)
Q17(AEP,IT,UK,E)
D5
L3
FERRITE-ROD
ANTENNA
24
22
Q6
Q2
BUFFER
MW-H
Q1
LW-H
AU7.5V
AM RF
PD1
AM OSC
Q5
Q4
Q3
AEP,IT,UK,E Model
Q13
IC 1
Q22
Q21
• R-CH:Same as L-CH
• Abbreviation
CND
: Canadian
IT : Italian
ZS-D5
— 23 —
— 24 —
— 25 —
7-3.
BLOCK DIAGRAM — TC SECTION —
RECT
D901-904
MUTE
CONTROL
Q320,329
20
A
B
FROM
TUNER/CD
SECTION
TU L
CD L
R-CH
LINE IN
J441
CD/LINE
CONTROL
Q321
CD5V
D304
D303
Q104
Q105
Q103
R-CH
M/D HEAD
R-CH
R-CH
L-CH
ERASE
BIAS
OSC
OSC
Q403
Q402
PB/REC
FUNCTION
IC401
22
24
17
5
4
15
21
REC
TAPE
RADIO
LINE
LINE/TUNER
NAB
REC
2
L
TAPE
TAPE
T401
PB/REC
SWITCH
Q411,413
BIAS
SWITCH
Q405,410
Q406,408,409
AU7.5V
Q401
ISS CONTROL
D401
D402
PB EQ
SWITCH
Q101
Q323
12
13
14
2
MATRIX
SURROUND
TONE
VR
CONTROL
9
4
5
6
8
7
16
18
20
19
23
21
SOUND/VOLUME
IC302
DATA
VC
CLK
LATCH
BC
AUDIO
MUTE
Q324
AMS
MUTE
Q328
MUTE
CONTROL
Q326,327
BASS
DET
Q325
MUTE
Q107
STBY
SWITCH
Q313,314
12
5
STBY
D306
POWER AMP
IC304
LOGIC
1
2
5
6
4
AMS
IC303
AU7.5V
MUTE
Q106
5
7
LINE AMP
IC305
R-CH
R-CH
LINE OUT
PHONES
J301
J442
L
R
SPEAKER
LINE
S441
D441
LED
DRIVE
Q322
LED
DRIVE
Q318,319
D809
CD5V
RA5V
COM5V
D810
D807
D808
D805
D806
S691
HALF
BU +B
S692
TYPE II
(CrO2)
S694
ERASE PROOF
(SIDE A)
S695
ERASE PROOF
(SIDE B)
OPEN/CLOSE
SXXX
Q301
S696
HEAD
POSITION
MOTOR
DRIVE
Q362
PL
DRIVE
Q365
M
Q361
PH691
END DET
TAPE
SPEED
D361
PM691
M691
Q363
MO 8.5V
FUNCTION
SWITCH
S801-807
37
54
80
IR
RECEIVER
1
2
3
IC802
RESET
IC803
3
1
2
WAKE-UP
CONTROL
FUNCTION
SWITCH
S809-816
FUNCTION
SWITCH
S818-823
FUNCTION
SWITCH
S817,825-830
D803
D802
D801
Q805
RMC +B
REG CHK
Q316,317
BACK-UP
5V REG
3
2
1
IC309
BU +B
COM5V
REG
Q315
D313
D314
CD 8.5V
REG
Q902
AU 7.5V
REG
Q901
MO 8.5V
OPR/
BATT
D811
+B
(IC304)
R+B
D301
T901
POWER
TRANSFORMER
J901
AC IN
12V
MAIN
BATT
UM1.5Vx8
D311
D905
D907
D906
6V
BACK-UP
BATT
UM1.5Vx4
2
REG CHK
3
RMC
B/L
SWITCH
Q311,312
84
34
8.5V CHK
B/L CONT
PL801,802
LCD
BACK LIGHT
50
53
LCD801
LIQUID CRYSTAL
DISPLAY PANEL
SEG0
SEG26
COM0
COM3
17
T HEAD POS
99
WP
30
KEY1
31
KEY2
32
KEY3
33
KEY4
27
AMS
38
RESET
28
CD OP/CL
20
EP(B)
19
EP(A)
16
HALF
10
P CONT
98
VR CE
97
VR CLK
96
VR DATA
95
A MUTE
14
T MOTOR CONT
100
TAPE END
85
LINE
15
PL CONT
86
TAPE
83
REC
87
RADIO
88
CD
IC801(2/2)
SYSTEM CONTROL
92
93
39
40
OSC
Q803,804
X802
32.768kHz
X801
4.21MHz
CLK OUT
CLK IN
R SHIFT
OSC OUT
OSC IN
:FM
:CD
:PB (MD)
:LINE
• SIGNAL PATH
16
:REC (MD)
• R-CH :Same as L-CH
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