DOWNLOAD Sharp XL-UR5H (serv.man2) Service Manual ↓ Size: 9.47 MB | Pages: 88 in PDF or view online for FREE

Model
XL-UR5H (serv.man2)
Pages
88
Size
9.47 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Temporary Data
File
xl-ur5h-sm2.pdf
Date
PREV: Sharp XL-UR5H User Manual / Operation Manual

Sharp XL-UR5H (serv.man2) Service Manual ▷ View online

XL-UR5H
2 – 3
Electrical Performance
Standard
Adjusting
Values
positions
1  With the recording and playback
   mechanism, load  the test tapes 
TDK-D60
   TDK-D60 ,  and set  the  mechanism  to  the 
4.5Ӵ
Ӵ A
+/-0.5
ӴA
2  After connecting 100
Ө in series to the
   recorder head, measure the bias current
   with a valve voltmeter at both of the
   terminals
Adjustment of
recording and
playback
frequency
characteristics
1  with the recording and playback
Output 
   mechanism, load the test tapes (TDK-D60)
deviation
  and set the mechanism to the
between
   recording and pausing condition in 
1KHz and
   advance
8KHz
2  While repetitively inputting the reference
:-1dB +/-2dB
   frequency signal of 1KHz and 8KHz from
   OSC IN, record and playback the tape.
3  While receding and playback the test tape
Lch and Rch  so  that  the  output
deviation between  1KHz  and 8KHz  
becomes -1dB  +/-2dB
Reference Values for Electrical Function Confirmation Items
Measurement method
Standard
Adjusting
Values
positions
1  While changing over to and form BIAS 1
    and 2, confirm that the frequency is
    changed
62KHz
T201
+/-6KHz
2  With the recording and playback
mechanism, load the test tape.
(TDK-D60 ) , and set themechanism to the 
recording and pausingcondition in advance.
3  Confirm that the BIAS TP frequency on the
    P.C. board is 62KHz +/-6KHz
P.C. board
Items
Items
Measurement
conditions
Playback
:Test tape
Measurement 
terminal
Recording
bias
frequency
TDK-D60
:OSC IN
(REF.:- 10dB)
:Reference frequency
1KHz and 8KHz
:Test tape
Adjustment of
recording bias
current
(Reference
  Value) 
:Both recording and
headphone terminals
Measurement 
output terminal
 Recording mode
Measurement
conditions
Ԧ
Ԧ
Ԧ
Ԧ
Ԧ
:Mode
Playback mode
TDK-D60
Measurement 
output terminal
Ԧ
Ԧ
Ԧ
Ԧ
TDK-D60
:Test tape
: BIAS TP on
XL-UR5H
4 – 1
CHAPTER 4. DIAGRAM
[1] Block Diagram
A
B
C
D
E
F
G
H
1
2
3
4
5
6
Figure 1: BLOCK DIAGRAM (1/2)
XL-UR5H
4 – 2
7
8
9
10
11
12
Figure 2: BLOCK DIAGRAM (2/2)
XL-UR5H
5 – 1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Waveform Of Servo Circuit
< Z1 : 2.5M >
< Z1 :1 00K >
< Z1 : 2M >
< Z1 : 2M >
< Z1 : 25K >
CH 4
Display
500ms/div
100ms/div
1s/div
20µs/div
Freq(C1)   *****
Position
Coupling
DC1M 
Probe
10:1
Offset
0:32 V
Bandwidth
Edge  CH4
Auto
0.50 V
Edge  CH4
Auto
0.50 V
CH1 10:1
1.00 V/div
DC   Full
Edge  CH4
Auto
0.50 V
CH1 10:1
2.00 V/div
DC   Full
CH1 10:1
1.00 V/div
DC   Full
Edge  CH4
Auto
0.50 V
CH1 10:1
2.00 V/div
DC   Full
CH2 10:1
2.00 V/div
DC   Full
CH3 10:1
2.00 V/div
DC   Full
CH4 10:1
2.00 V/div
DC   Full
Edge  CH4
Auto
0.001 kV
CH1 10:1
5.00 V/div
DC   Full
CH2 10:1
5.00 V/div
DC   Full
CH3 10:1
5.00 V/div
DC   Full
Full
ON
OFF
-0.
2
0div
CH 4
Display
Position
Coupling
DC1M 
Probe
10:1
Offset
Bandwidth
Freq(C1)
FR-A(C4)
Freq(C2)
50.00000kHz
40.00000kHz
43.75492kHz
Full
ON
OFF
- 
3
.00div
MEASURE
Mode
Item Setup
Delay Setup
1Cycle Mode
OFF
Time Range1
Time Range2
ON
ON
1.
5
7000div
1.
7
7000div
Freq (C1)
50.00000kHz
0.2v
CH1
A>0.2µs
˜
0:
8
2 V
1
IC902  19
2
IC901  24
6
IC901  12
2
IC901  24
1
IC902  19
4
IC902  24
3
IC902   4
5
IC902  10
9
IC901  21
8
IC901  22
7
IC901  23
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