Sony STR-KM22 Service Manual page 19

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Internal component.
f
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
(SIDE B) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
• Indication of transistor.
C
Q
These are omitted.
B E
B C E
These are omitted.
• Abbreviation
AR : Argentina model
AUS : Australian model
E12 : 220-240 V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
SAF : South African model
SP : Singapore model
TH : Thai model
STR-KM22/KM55/KM77
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
1
• All resistors are in Ω and / 4 W or less unless otherwise
specifi ed.
• : internal component.
f
• 2 : nonfl ammable resistor.
• 5 : fl usible resistor.
• C : panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with a VOM (Input impedance 10
MΩ). Voltage variations may be noted due to normal pro-
duction tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: TUNER (FM/AM)
f
: AUDIO (ANALOG)
F
: AUDIO (DIGITAL)
J
: VIDEO
E
: USB
L
• Abbreviation
AR : Argentina model
AUS : Australian model
E12 : 220-240 V AC area in E model
E51 : Chilean and Peruvian models
EA : Saudi Arabia model
SAF : South African model
SP : Singapore model
TH : Thai model
• Waveforms
– MAIN Board –
1
IC2104 5 (SCK)
1.8 Vp-p
41 ns
500 mV/DIV, 10 ns/DIV
2
IC2104 7 (BCK)
31 Vp-p
320 ns
10 V/DIV, 100 ns/DIV
3
IC2104 8 (LRCK)
36 Vp-p
20 s
20 V/DIV, 10 s/DIV
4
IC2106 rk (X0)
195 mVp-p
250 ns
50 mV/DIV, 100 ns/DIV
5
IC2106 rl (X1)
480 mVp-p
250 ns
200 mV/DIV, 100 ns/DIV
6
IC2114 3 (MCKIN)
130 mVp-p
60 ns
50 mV/DIV, 10 ns/DIV
19 19
STR-KM22/KM55/KM77
7 qd
IC2114 4 (BCKIN) IC2114 es (XIN)
8 mVp-p
60 ns
5 mV/DIV, 25 ns/DIV 500 mV/DIV, 10 ns/DIV
8 qf
IC2119 1 (1CK)
IC2114 qd (MCKOUT)
14 Vp-p
40 ns
5 V/DIV, 10 ns/DIV 20 V/DIV, 10 s/DIV
qg
9 IC2119 qd (2CK)
IC2114 qf (BCKOUT)
38 Vp-p
320 ns
20 V/DIV, 100 s/DIV
10 V/DIV, 100 ns/DIV
q;
qh
IC2114 qg (LRCKOUT) IC2700 qf (XIN_PLL)
36 Vp-p
20 s
20 V/DIV, 10 s/DIV
20 mV/DIV, 25 ns/DIV
qa qj
IC2114 e; (XMCK) IC2700 qg (XOUT_PLL)
720 mVp-p
12.5 ns
200 mV/DIV, 2.5 ns/DIV 100 mV/DIV, 25 ns/DIV
qs qk
IC2114 ea (XOUT) IC2800 rk (PE2/X0)
13 Vp-p
40 ns
5 V/DIV, 10 ns/DIV 100 mV/DIV, 10 ns/DIV
Ver. 1.1
1.25 Vp-p
40 ns
34 Vp-p
20 s
36 Vp-p
340 s
46 mVp-p
60 ns
400 mVp-p
60 ns
230 mVp-p
20 ns