Sony PHC-ZW770L User manual

– 1 –
CD Model Name Using Similar Mechanism PMC-D305L
Section CD Mechanism Type KSM-213CDM
Optical Pick-up Name KSS-213C
TC Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type MF-ZW750-117
SERVICE MANUAL
AEP Model
UK Model
E Model
PHC-ZW770L
PERSONAL AUDIO SYSTEM
MICROFILM
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: EE and CET model
65 - 74 MHz
87.5 - 108 MHz
Except EE and CET model
87.5 - 108 MHz
MW: 531 - 1,602 kHz
LW: 153 - 279 kHz
IF FM: 10.7 MHz
MW/LW: 450 kHz
Aerials:
FM: Telescopic antenna
MW/LW: Built-in ferrite bar antenna
SPECIFICATIONS
– Continued on next page –
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 12,500 Hz
General
Speaker
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Maximum power output
4.5 W + 4.5 W
Power requirements
For personal audio system:
230 V AC, 50 Hz
9 V DC, 6 R20 (size D) batteries
For memory back-up:
4.5 V DC, 3 R6 (size AA) batteries
For remote controller:
3 V DC, 2 R6 (size AA) batteries
Power consumption
AC 28 W
Ver 1.0 1999. 03

5-6. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 22 for Note on Schematic Diagram.
• Refer to page 41 for IC Block Diagrams.
– 23 – – 24 –
PHC-ZW770L
(Page 33) (Page 27)
Approx. 100mVp-p
IC701 $¶ (TEI)
• Waveforms (MODE:PLAY)
1
2
3
4
5
2.5V
1.3±0.5Vp-p
Approx. 200mVp-p
IC701 1(FEO)
2.5V
IC703 @¡ (MDP)
2Vp-p
7.6µsec
16.9344MHz
IC703 &¡ (XTAO)
2.2Vp-p
IC701 #£ (RFO)

5-8. SCHEMATIC DIAGRAM — CONTROL SECTION — • Refer to page 25 for Note on Schematic Diagram.
• Refer to page 43 for IC Block Diagrams.
– 27 – – 28 –
PHC-ZW770L
(Page 40)
(Page 24)
(Page 33)

– 31 – – 32 – – 33 –
PHC-ZW770L
5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 43 for IC Block Diagrams.
IC302 D-7
IC303 B-6
IC304 B-8
IC305 H-4
Q2 F-10
Q13 F-10
Q40 F-10
Q41 D-12
Q42 E-12
Q43 D-11
Q44 E-11
Q61 H-10
Q101 C-7
Q201 C-6
Q301 F-6
Q302 F-6
Q303 F-6
Q304 E-7
Q305 E-4
Q306 G-4
Q307 G-4
Q308 F-4
Q309 F-4
Q310 F-4
Q311 F-9
Q312 F-9
Q313 E-9
Q314 E-9
Q315 H-7
Q316 F-8
Q317 F-8
Q318 F-8
Q319 F-8
Q320 C-10
Q321 E-7
Q322 E-8
Q323 E-8
Q324 C-11
Q325 C-11
Q327 D-11
Q328 D-10
Q329 D-11
Q330 D-9
Q331 B-9
Q332 G-4
Q333 B-9
Q334 I-4
Q335 H-4
Q336 H-5
Q337 H-5
Q338 D-8
Q339 D-8
Q340 G-4
D1 G-12
D2 F-12
D3 E-11
D7 G-9
D8 G-9
D10 B-11
D11 B-11
D13 G-9
D14 G-9
D301 E-7
D302 H-5
D303 H-5
D304 F-4
D305 F-4
D306 H-8
D307 H-8
D308 H-8
D309 H-8
D310 H-8
D311 E-7
D312 E-7
D313 C-10
D314 C-10
D315 C-10
D316 D-10
D317 D-10
D318 D-10
D319 C-11
D320 C-11
D321 D-9
D322 D-9
D323 D-9
D324 E-10
D325 B-8
D326 B-9
D327 C-10
D328 D-10
D329 H-4
D331 B-9
D333 D-9
D334 H-4
D335 H-5
D336 H-7
D337 H-7
D338 H-7
D339 H-7
D340 H-7
D341 F-4
D342 G-4
D343 F-4
IC1 G-11
IC2 G-10
IC301 G-6
• Semiconductor Location
Ref.No. Location Ref.No. Location
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : PB (TAPE)
< > : REC (TAPE)
[ ] : CD STOP
(( )) : DUBBING
<< >> : HIGH-SPEED DUBBING
• Voltagesaretaken with aVOM (Inputimpedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
E: PB (DECK A)
d: PB (DECK B)
a: REC (DECK B)
J: CD
(Page 40) (Page 24)
(Page 27)
(Page 37)

– 37 – – 38 –
5-12. SCHEMATIC DIAGRAM — POWER SUPPLY SECTION —
PHC-ZW770L
PL801-803
LCD BACK LIGHT
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•1: fusible resistor.
•C: panel designation.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
• Voltages aretakenwith aVOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Abbreviation
SP : Singapore model
(Page
33)
(Page
39)
Note: The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
•U: B+ Line.

5-13. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 44 for IC Block Diagrams.
PHC-ZW770L
– 39 – – 40 –
0.5-110
TP
(VT)
-1
-1
MW
-2
LW
-2
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•¢: internal component.
•U: B+ Line.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : MW
<>:LW
• Voltages are takenwith aVOM(Input impedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
f: MW
• Abbreviation
EE : East European model
(Page 27)
(Page 31)
(Page 37)

– 41 –
IC701 CXA1992BR
CHARGE
UP
FSET
TRACKING
PHASE COMPENSATION
FOCUS
PHASE COMPENSATION
40
FE BIAS
41
F
42
E
43
EI
44
VEE
45
TEO
46
LPF1
47
TEI
48
ATSC
49
TZC
50
TDFCT
51
VC
52
FZC
26 SENS2
25 SENS1
24 C OUT
23 XRST
22 DATA
21 XLT
20 CLK
19 LOCK
VCC
17 ISET
16 SL O
SL M
SL P
39
PD2 PD1
38 37
PD0
36
LD
35
RFTC
34
RF M
33
RF O
32
RF I
31
CP
30
CB
29
CC1
28
CC2
27
FOK
1
FEO
FEI
FDFCT
FGD
FLB
FE O
7
FE M
8
SRCH
9
TGU
10
TG2
11
FSET
12
TA M
13
TA O
TM2
TM6
TM4
TM7
TM5 TM3
VEEVEE
TG2
VCC
FS1
FS2
FS4
TG1
TM1
DFCT
DFCT
VEE
VCC
ISET
VCC
VCC
FZC COMP
VCC
VCC
VEE
TZC COMP
ATSC
WINDOW
COMP
E-F BALANCE
WINDOW COMP
TOG1 BAL1
BAL2 BAL3 BAL4
IFB1 IFB2 IFB3 IFB4 IFB5 IFB6
TOG2 TOG3 TOG4
E IV AMP
F IV AMP
PD2 IV
AMP PD1 IV AMP
VCC APC
VCC
VEE
TGFL
VEE
VEE
VEE
LASER POWER CONTROL
FE AMP
RF SUMMING AMP
FO BIAS
WINDOW
COMP
FOK
TRK GAIN
WINDOW COMP
VCC
DFCT
VCC
VCC
VEE
VEE
MIRR
VEE
IIL
IIL
TTL
IIL
TTL
TTL
CC1
DFCT1
MIRR
LDON
LPCL LPC TGFL
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
IIL DATA REGISTER
INPUT SHIFT REGISTER
SENS SELECTOR
OUTPUT DECODER
DFCTO IFB1–6
BAL1–4
TOG1–4
FS1–4 TG1–2 TM1–7 PS1–4
4 5 632
14
15
18
LEVEL 9
• IC Block Diagrams

– 42 –
IC703 CXD2589Q
IC702 BA6898FP
PWM
PWM
1 2 3 4 5 6 12 13 14 15 16 17 19 20
34
27
24
23
25
21
61
63
64
66
67
68
69
70
71
72
73
74
75
77
78
79
80
OSC
62
65
76
7 8 9 10 11 18
22
28
26
33
32
31
30
29
36
35
40
39
38
37
45 44 43 42 4150 49 48 47 4655 54 53 52 5159 58 57 5660
EFM
DEMODULATOR
ERROR
CORRECTOR 16k RAM
D/A
INTERFACE
CLOCK
GENERATOR
SERVO
AUTO
SEQUENCER
CPU
INTERFACE
DIGITAL
OUT
SUB CODE
PROCESSOR
3rd-ORDER
NOISE SHAPER
OVER SAMPLING
DIGITAL FILTER
SERIAL-IN
INTERFACE
DIGITAL
CLV
OSC
DIGITAL
PLL
ASYMMETRY
CORRECTOR
LRCKI
LRCK
ASYO
ASYI
BIAS
RF
AVDD
CLTV
AVSS
FILI
FILO
PCO
V16M
VCTL
VCKI
VPCO1
TES1
TES0
PWMI
MDP
VDD
SYSM
AVSS
AVDD
XTAI
XVDD
AVSS
LOUT1
AIN1
AOUT1
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
XRST
VDD
VSS EXCK SBSO SCOR WFCK ENPHI EMPH DOUT C4M XTSL C2PO GFS XPCK XUGF VDD VSS BCKI BCK PCMDI PCMD
VSS
LMUTE
RMUTE
SQCK
SQSO
SENS DATA
XLAT
CLOK
SEIN
CNIN
DATO
XLTO
CLKO
SPOA SPOB XLON
FOK
VDD
VSS
1 2 3 4 56 7 8 9 10 11 12 13 14
28 27 26 24 23 22 21 20 19 18 17 16 1525
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
D.BUF D.BUF
LEVEL
SHIFT D.BUF
D.BUF
D.BUF GND
F– F+ FIN NC VREF VCC VCC NC TIN T– T+ VREF SPI
SL– SL+
SLIN
NC NC NC
MUTE
GND
SPIN
NC
SP– SP+
GND
SPO
D.BUF D.BUF
D.BUF
REGULATOR
DRIVER-
MUTE
VCC VCC

– 43 –
IC302 CXA1352AS
IC803 M62354P
12
11
10987654321
1314151617
BIAS
400Hz 100Hz
BAL
VOL
DC1
4KHz 1KHz DVCC 10KHz
DC2 IN2 VCC LINE OUT2 OUT2 (FIX) OUT2 (VARIABLE)
VG
IN1
GND LINE
OUT1
OUT1
(FIX)
OUT1
(VARIABLE)
ISET
CONTROL
1820
21
22 19
14dB
20dB
20dB
14dB
GRAPHIC EQUALIZER
GRAPHIC EQUALIZER
VCC VDD A05A06 A04 A03 VSS
DO LD CLK DI A01 A02 GND
ADDRESS
DECODER
121314 11 10
5
4
3
2
16 7
CH2
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
CH1
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
9 8
CH3
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
CH4
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
CH5
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
CH6
8 BIT
R-2R+SEGMENT
D-A CONVERTOR
8 BIT
LATCH
D8-D11 D0-D7
12BIT SHIFT REGISTER

– 44 –
IC1 TA2104AN IC2 LC72137-D
IC301 BA3426AS
AGC
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
28
27
26
25
24
23
22
21
20
19
18
17
REC EQ
REC EQ
LOGIC
B-L
B-R
TR-B
TR-C
TAPE-MODE
FNC
REC-EQ-L
REC-EQ-R
REC-NF-L
REC-NF-R
LPF-L
LPF-R
AGC
BIAS
GND
VCC
A-L
TAPE-NF-L
TAPE-O-L
A-R
TAPE-NF-R
TAPE-O-R
MIC/HS
MIC-NF
MIC-IN
RADIO-IN-L
RADIO-IN-R
CD-IN-L
CD-IN-R
LINE-OUT-L
LINE-OUT-R
BIAS-IN
29
GND1
3
2
1
IF REQ
AM
MIX
FM RF IN
AM LOW OUT
5
4
MIX OUT
VCC2
AF IF IN
8
7
6
FM IF IN
GND2
10
9
AGC
QUAD
12
11
R OUT
L OUT
FM RF OUT
22
23
24
20
21
17
18
19
15
16
13
14
AM RF OUT
VCC1
FM OSC
ST IND
OSC OUT
AM OSC
IF OUT
LPF2/MO-ST
MPX IN
DET OUT
LPF1/BAND
FM
MIX FM
OSC
LEVEL
DET
AM
DET
MUTE
FM
DET
ST/MO
FM/AM
AM
OSC
AGC
SW
ST
1/8
BUFF
BUFF
DIVIDE
DECODE
VCO
IF BUFF
AF BUFF
AF
FM RF
AM IF
FM IF
12
11
10
9
8
7
6
5
4
3
2
1
13
14
15
16
17
20
21
UNLOCK
DETECTOR POWER ON
RESET
UNIVERSAL
COUNTER
CCB
I/F
NC
CE
DI
CL
DO
XOUT
22 NC
AOUT
XIN
AIN
PD
VSS
VDD
B04
FMIN
AMIN
B01
B02
B03
I01
I02
IFIN
PHASE
DETECTOR
CHARGE
PUMP
REFERENCE
DIVIDER
SWALLOW
COUNTER
1/16,1/17
4BITS
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
1/2
18
19