DOWNLOAD Sony HCD-PZ1D / MHC-PZ1D Service Manual ↓ Size: 6.6 MB | Pages: 108 in PDF or view online for FREE

Model
HCD-PZ1D MHC-PZ1D
Pages
108
Size
6.6 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-pz1d-mhc-pz1d.pdf
Date

Sony HCD-PZ1D / MHC-PZ1D Service Manual ▷ View online

HCD-PZ1D
25
2-25.  VIDEO  BOARD
2-26.  MECHANISM  DECK (CDM74HFV  ASSY)
– Bottom view –
2
 screw
 (BVTP 
u8)
2
 two screws
 (BVTP 
u8)
7
 mechanism deck
 (CDM74HFV 
assy)
6
 WIRE HOLDER A board
2
 two screws
 (BVTP 
u8)
4
 pet cover (down)
1
 pet cover (up)
5
 screw
  (BVTP 2.6 (3CR))
3
1
 four screws
 (BVTP 
u8)
cover (fan)
back panel
fan cable
VIDEO board
OK
NG
2
 VIDEO board
‡:LUHVHWWLQJ
HCD-PZ1D
26
2-27.  DRIVER  BOARD,  SW  BOARD
2-28.  SENSOR  BOARD
3
 connector
 (CN703)
4
 DRIVER board
6
 SW board
2
 wire (flat type) (5 core)
 (CN702)
1
 two screws
 (BTTP 
(M2.6))
5
 screw
 (BTTP 
(M2.6))
– Bottom view –
2
  tray
3
  belt (table)
5
  pulley (table)
8
 screw
 (BTTP 
(M2.6))
0
 SENSOR board
7
 gear (geneva)
9
 connector
 
(CN731)
1
 floating screw 
 (PTPWH 
M2.6)
6
 floating screw 
 (PTPWH 
M2.6)
4
 floating screw 
 (PTPWH 
M2.6)
HCD-PZ1D
27
2-29.  MOTOR (TB)  BOARD
2-30.  MOTOR (LD)  BOARD
6
  Remove the two solderings of motor.
8
  MOTOR (TB) board
7
  table motor assy (M741)
5
 two screws
 (BTTP 
(M2.6))
4
3
 wire (flat type) (5 core) (CN742)
1
 stopper
2
 stopper
3
  Remove the two solderings of motor.
5
  MOTOR (LD) board
1
  belt (loading)
4
  loading motor assy (M751)
2
 two screws
 (BTTP 
(M2.6))
HCD-PZ1D
28
SECTION  3
TEST  MODE
COLD  RESET
The cold reset clears all data including preset data stored in the 
RAM to initial conditions. Execute this mode when returning the 
set to the customer.
Procedure:
1.  Press the [
?/1
] button to turn on the system.
2.  Press the [
x
] button, [DISC 3] button and [
?/1
] button simul-
taneously.
3.  The message “COLD RESET” appears on the LCD module. 
Then, the LCD module becomes blank for a while, and the 
system is reset.
COMMON  TEST  MODE
This mode is used to check operations of the respective section of 
Equalizer level, volume and VACS ON/OFF.
Procedure:
•  To enter Common Test Mode
1.  Press the [
?/1
] button to turn on the system.
2.  Press the [
x
] button, [PRESET EQ] button and [DISC 1] si-
multaneously.
3.  The message “VACS0” appears on the LCD module.
•  Check of Equalizer Level
1.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “ALL EQ MIN” appears on the LCD module. GEQ 
decreases to its minimum.
2.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “ALL EQ MAX” appears on the LCD module. GEQ 
increases to its maximum.
3.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “ALL EQ FLAT” appears on the LCD module. GEQ 
is set to fl at.
•  Check of Volume
1.  Press the [USB] button repeatedly, the sound volume increases 
to its maximum and message “VOLUME16” 
t “VOLUME 
MAX” appears on the LCD module.
2.  Press the [OPTIONS] button repeatedly, the sound volume 
decreases to its minimum and message “VOLUME16” 
“VOLUME MIN” appears on the LCD module.
•  Check of VACS (Variable Attenuation Control System)
ON/OFF Select
1.  Press the [REC TO USB] button repeatedly until a message 
“VACS OFF” or “VACS ON” appears on the LCD module.
•  To release from Common Test Mode
1.  To release from this mode, press the [
?/1
] button.
2.  To cold reset is enforced at the same time.
AMP  TEST  MODE
This mode is used to display the real time VACS level and check 
operations of the respective sections of Equalizer band and DBFB 
ON/OFF.
Procedure:
•  To enter AMP Test Mode
1.  Press the [
?/1
] button to turn on the system.
2. Press 
the 
[
x
] button, [GROOVE] button and [DISC 1] button 
simultaneously.
3.  The message “AMP TEST IN” appears on the LCD module.
•  Check of VACS Display/AMP Adjustment Select
1.  Press the [REC TO USB] button repeatedly until a message 
“V0 0 0” appears on the LCD module. “0” represents VACS 
level which is triggered by signal level.
2.  Press the [REC TO USB] button repeatedly until a message 
“D +6 +2 +4” appears on the LCD module. “+6” represents 
Equalizer Low level, “+2” represents Equalizer Mid level and 
“+4” represents Equalizer High level.
•  Check of Equalizer Band Select
1.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “LOW +6 dB” appears on the LCD module. EQ Band 
is set to Low level.
2.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “MID +2 dB” appears on the LCD module. EQ Band 
is set to Middle level.
3.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “HIGH +4 dB” appears on the LCD module. EQ Band 
is set to High level.
•  Change of Equalizer Band
1.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “LOW +6 dB” appears on the LCD module.
2.  When the [OPERATION DIAL] ring is turned clockwise or 
counterclockwise even slightly, “LOW +6 dB” change to 
“LOW –8 dB” 
y “LOW +8 dB” appears on the LCD mod-
ule.
3.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “MID +2 dB” appears on the LCD module.
4.  When the [OPERATION DIAL] ring is turned clockwise or 
counterclockwise even slightly, “MID +2 dB” change to “MID 
–8 dB” 
y “MID +8 dB” appears on the LCD module.
5.  Press the [EQ BAND/MEMORY] button repeatedly until a 
message “HIGH +4 dB” appears on the LCD module.
6.  When the [OPERATION DIAL] ring is turned clockwise or 
counterclockwise even slightly, “HIGH +4 dB” change to 
“HIGH –8 dB” 
y “HIGH +8 dB” appears on the LCD mod-
ule.
•  Check of DBFB ON/OFF Select
1.  Press the [OPTIONS] button repeatedly until a message 
“DBFB OFF” or “DBFB ON” appears on the LCD module.
•  To release from AMP Test Mode
1.  To release from this mode, press the [
?/1
] button.
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